TF
tf D DRIVELINE/AXLE
A
SECTION
B
TRANSFER C
TF
CONTENTS
E
PRECAUTIONS ......................................................... 4
COMPONENTS FUNCTION DESCRIPTION ..... 18 F
Precautions for Supplemental Restraint System
CAN Communication ............................................. 19
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
........................................................................... 19
SIONER" ................................................................. 4 TROUBLE DIAGNOSIS ........................................... 20 G
Precautions for Transfer Assembly and Transfer
How to Perform Trouble Diagnosis ........................ 20
Control Unit Replacement ....................................... 4
BASIC CONCEPT .............................................. 20
CHECK 4WD SHIFT INDICATOR PATTERN ...... 4 METHOD FOR ADJUSTMENT WITH 4WD
Location of Electrical Parts .................................... 21 Circuit Diagram ...................................................... 22
H
SHIFT SWITCH AT "2WD" ................................... 5 Wiring Diagram -- 4WD -- .................................... 23
METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT "4H" OR "4LO" ...................... 5
Trouble Diagnosis Chart for Symptoms ................. 27
Transfer Control Unit Input/Output Signal Refer-
I
Precautions ............................................................. 6 ence Values ........................................................... 27
Service Notice ......................................................... 6
TRANSFER CONTROL UNIT INSPECTION
Wiring Diagrams and Trouble Diagnosis ................. 7
TABLE ................................................................ 27 J
PREPARATION .......................................................... 8 CONSULT-II Function ............................................ 31
Special Service Tools .............................................. 8
FUNCTION ......................................................... 31
Commercial Service Tools ..................................... 10 NOISE, VIBRATION AND HARSHNESS (NVH)
CONSULT-II SETTING PROCEDURE ............... 31 K SELF-DIAG RESULT MODE .............................. 33
TROUBLESHOOTING ..............................................11
DATA MONITOR MODE ..................................... 34
NVH Troubleshooting Chart ...................................11 TRANSFER FLUID .................................................. 12
Self-Diagnostic Procedure ..................................... 36
SELF-DIAGNOSTIC PROCEDURE (WITH
L
Replacement ......................................................... 12
CONSULT-II) ...................................................... 36
Inspection .............................................................. 12
SELF-DIAGNOSTIC PROCEDURE (WITHOUT
4WD SYSTEM ......................................................... 13
CONSULT-II) ...................................................... 36 M
Cross-section View ............................................... 13
ERASE SELF-DIAGNOSIS ................................ 37
Power Transfer ...................................................... 14 TROUBLE DIAGNOSIS FOR SYSTEM ................... 38
POWER TRANSFER DIAGRAM ....................... 14 Power Supply Circuit For Transfer Control Unit ..... 38
POWER TRANSFER FLOW .............................. 15
CONSULT-II REFERENCE VALUE IN DATA
System Description ............................................... 15
MONITOR MODE ............................................... 38
TRANSFER CONTROL DEVICE ....................... 15
TRANSFER CONTROL UNIT TERMINALS AND
WAIT DETECTION SWITCH ............................. 15
REFERENCE VALUE ......................................... 38
4LO SWITCH ..................................................... 15
DIAGNOSTIC PROCEDURE ............................. 39
ATP SWITCH ..................................................... 15
COMPONENT INSPECTION ............................. 40
TRANSFER CONTROL UNIT ............................ 15 Transfer Control Unit ............................................. 40
TRANSFER RELAY ........................................... 15
DIAGNOSTIC PROCEDURE ............................. 40
4WD SHIFT SWITCH AND INDICATOR LAMP... 16 Output Shaft Revolution Signal (TCM) .................. 41
4WD WARNING LAMP ...................................... 17
DIAGNOSTIC PROCEDURE ............................. 41
ATP WARNING LAMP ....................................... 17 Vehicle Speed Sensor (ABS) ................................. 42
System Diagram .................................................... 18
DIAGNOSTIC PROCEDURE ............................. 42
4LO Switch ............................................................ 42
Revision: April 2004
TF-1
2004 Titan
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 42 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 42 DIAGNOSTIC PROCEDURE ............................. 43 COMPONENT INSPECTION ............................. 44 4WD Shift Switch ................................................... 45 CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 45 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 45 DIAGNOSTIC PROCEDURE ............................. 46 COMPONENT INSPECTION ............................. 48 Wait Detection Switch ............................................ 49 CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 49 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 49 DIAGNOSTIC PROCEDURE ............................. 50 COMPONENT INSPECTION ............................. 51 PNP Switch Signal ................................................. 52 DIAGNOSTIC PROCEDURE ............................. 52 Actuator Motor ....................................................... 53 CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 53 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 53 DIAGNOSTIC PROCEDURE ............................. 54 COMPONENT INSPECTION ............................. 56 Actuator Position Switch ........................................ 57 CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 57 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 57 DIAGNOSTIC PROCEDURE ............................. 58 Transfer Control Device ......................................... 60 CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 60 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 60 DIAGNOSTIC PROCEDURE ............................. 61 Engine Speed Signal ............................................. 63 DIAGNOSTIC PROCEDURE ............................. 63 CAN Communication Line ..................................... 64 DIAGNOSTIC PROCEDURE ............................. 64 ATP Switch ............................................................ 64 CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE ............................................... 64 TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE ......................................... 64 DIAGNOSTIC PROCEDURE ............................. 65 COMPONENT INSPECTION ............................. 66 TROUBLE DIAGNOSIS FOR SYMPTOMS ............. 68 4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON ..................................................... 68 SYMPTOM: ......................................................... 68 DIAGNOSTIC PROCEDURE ............................. 68 4WD Warning Lamp Does Not Turn ON ................ 70 SYMPTOM: ......................................................... 70
DIAGNOSTIC PROCEDURE ..............................71 4WD Shift Indicator Lamp or 4LO Indicator Lamp Do Not Change ......................................................73
SYMPTOM: .........................................................73 DIAGNOSTIC PROCEDURE ..............................73 ATP Warning Lamp Does Not Turn ON .................74 SYMPTOM: .........................................................74 DIAGNOSTIC PROCEDURE ..............................74 4WD Shift Indicator Lamp Repeats Flashing .........76 SYMPTOM: .........................................................76 DIAGNOSTIC PROCEDURE ..............................77 4WD Warning Lamp Flashes Slowly ......................77 SYMPTOM: .........................................................77 DIAGNOSTIC PROCEDURE ..............................78 TRANSFER CONTROL UNIT ..................................79 Removal and Installation ........................................79 REMOVAL ...........................................................79 INSTALLATION ...................................................79 FRONT OIL SEAL ....................................................80 Removal and Installation ........................................80 REMOVAL ...........................................................80 INSTALLATION ...................................................81 REAR OIL SEAL ......................................................82 Removal and Installation ........................................82 REMOVAL ...........................................................82 INSTALLATION ...................................................82 TRANSFER CONTROL DEVICE .............................84 Removal and Installation ........................................84 REMOVAL ...........................................................84 INSTALLATION ...................................................84 AIR BREATHER HOSE ............................................86 Removal and Installation ........................................86 TRANSFER ASSEMBLY ..........................................87 Removal and Installation ........................................87 REMOVAL ...........................................................87 INSTALLATION ...................................................87 Disassembly and Assembly ...................................88 COMPONENTS ..................................................88 DISASSEMBLY ...................................................90 INSPECTION AFTER DISASSEMBLY ...............95 ASSEMBLY .........................................................96 PLANETARY CARRIER .........................................104 Disassembly and Assembly .................................104 DISASSEMBLY .................................................104 INSPECTION AFTER DISASSEMBLY .............105 ASSEMBLY .......................................................106 FRONT DRIVE SHAFT ...........................................108 Disassembly and Assembly .................................108 DISASSEMBLY .................................................108 INSPECTION AFTER DISASSEMBLY .............108 ASSEMBLY .......................................................109 SHIFT CONTROL ................................................... 110 Disassembly and Assembly ................................. 110 DISASSEMBLY ................................................. 110 INSPECTION AFTER DISASSEMBLY ............. 110 ASSEMBLY ....................................................... 111 SERVICE DATA AND SPECIFICATIONS (SDS) ... 112 General Specifications ......................................... 112
Revision: April 2004
TF-2
2004 Titan
Pinion Gear End Play ...........................................112
Clearance Between Shift Fork and Sleeve ..........112
A
B
C
TF
E
F
G
H
I
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K
L
M
Revision: April 2004
TF-3
2004 Titan
PRECAUTIONS
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"
UDS0008W
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
WARNING: q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
Precautions for Transfer Assembly and Transfer Control Unit Replacement UDS000DE
q When replacing transfer assembly or transfer control unit, check the 4WD shift indicator pattern and adjustment of the position between transfer assembly and transfer control unit if necessary.
CHECK 4WD SHIFT INDICATOR PATTERN 1. Set 4WD shift switch to "2WD", "4H", "4LO", "4H" and "2WD" in order. (Stay at each switch position for at
least 2 seconds.)
2. Confirm 4WD shift indicator lamp and 4LO indicator lamp are changed properly as follows.
SDIA2481E
q If OK, the position between transfer assembly and transfer control unit is correct. q If NG, the position is different between transfer assembly and transfer control unit.
Adjust the position between transfer assembly and transfer control unit. Refer to pattern table below.
Revision: April 2004
TF-4
2004 Titan
PRECAUTIONS
Transfer position adjustment pattern
4WD shift switch condition
Refer procedure
A
4WD shift switch is under "2WD" condition when engine is being stopped.
TF-5, "METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT "2WD""
B
4WD shift switch is under "4H" or "4LO" condition when engine is being stopped.
TF-5, "METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT "4H" OR "4LO""
NOTE:
Method of adjustment can be chosen voluntarily, according to location of 4WD shift switch.
C
METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT "2WD"
Select adjustment pattern
TF
1. Start engine. (Stay for at least 10 seconds.)
2. Check 4WD shift indicator lamp and 4LO indicator lamp.
Indicator lamp condition
Refer procedure
E
When 4WD shift indicator lamp or 4LO indicator lamp is flashing.
TF-5, "Pattern A"
Except for above.
TF-5, "Pattern B"
F
Pattern A
1. Stop vehicle and move A/T selector lever to "N" position with brake pedal depressed. (Stay for at least 2
seconds.)
G
2. Turn 4WD shift switch to "4LO" position. (Stay for at least 2 seconds.)
3. Turn ignition switch "OFF".
4. Start engine.
H
5. Erase self-diagnosis. Refer to TF-34, "How to erase self-diagnostic results" (with CONSULT-II) or TF-37,
"ERASE SELF-DIAGNOSIS" (without CONSULT-II).
6. Check 4WD shift indicator lamp and 4LO indicator lamp again. Refer to TF-4, "CHECK 4WD SHIFT INDI- I
CATOR PATTERN" .
If 4WD shift indicator lamp and 4LO indicator lamp do not indicate proper pattern, install new transfer con-
trol unit and retry the above check.
J
Pattern B
1. Stop vehicle and move A/T selector lever to "N" position with brake pedal depressed. (Stay for at least 2
seconds.)
K
2. Turn ignition switch "OFF".
3. Start engine.
L
4. Erase self-diagnosis. Refer to TF-34, "How to erase self-diagnostic results" (with CONSULT-II) or TF-37,
"ERASE SELF-DIAGNOSIS" (without CONSULT-II).
5.
Check 4WD shift indicator lamp and 4LO indicator lamp again. Refer to TF-4, "CHECK 4WD SHIFT INDICATOR PATTERN" .
M
If 4WD shift indicator lamp and 4LO indicator lamp do not indicate proper pattern, install new transfer con-
trol unit and retry the above check.
METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT "4H" OR "4LO" 1. Start engine. (Stay for at least 10 second.)
2. Stop vehicle and move A/T selector lever to "N" position with brake pedal depressed. (Stay for at least 2 seconds.)
3. Turn 4WD shift switch to "2WD" position. (Stay for at least 2 seconds.)
4. Turn ignition switch "OFF".
5. Start engine.
6. Erase self-diagnosis. Refer to TF-34, "How to erase self-diagnostic results" (with CONSULT-II) or TF-37, "ERASE SELF-DIAGNOSIS" (without CONSULT-II).
7. Check 4WD shift indicator lamp and 4LO indicator lamp again. Refer to TF-4, "CHECK 4WD SHIFT INDICATOR PATTERN" . If 4WD shift indicator lamp and 4LO indicator lamp do not indicate proper pattern, install new transfer control unit and retry the above check.
Revision: April 2004
TF-5
2004 Titan
PRECAUTIONS
Precautions
q Before connecting or disconnecting the transfer control unit harness connector, turn ignition switch "OFF" and disconnect battery ground cable. Because battery voltage is applied to transfer control unit even if ignition switch is turned "OFF".
UDS0008X
q When connecting or disconnecting pin connectors into or from transfer control unit, take care not to damage pin terminals (bend or break). When connecting pin connectors make sure that there are not any bends or breaks on transfer control unit pin terminal.
q Before replacing transfer control unit, perform transfer control unit input/output signal inspection and make sure whether transfer control unit functions properly or not. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
SEF289H SEF291H
MEF040DB
Service Notice
UDS0008Y
q After overhaul refill the transfer with new transfer fluid. q Check the fluid level or replace the fluid only with the vehicle parked on level ground. q During removal or installation, keep inside of transfer clear of dust or dirt.
q Disassembly should be done in a clean work area.
q Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal parts from becoming contaminated by dirt or other foreign matter.
q Check for the correct installation status prior to removal or disassembly. If matchmarks are required, be certain they do not interfere with the function of the parts when applied.
q All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or reassembly.
q Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them with a new ones if necessary.
q Gaskets, seals and O-rings should replaced any time the transfer is disassembled.
q In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If tightening sequence is specified, use it.
q Observe the specified torque when assembling. q Clean and flush the parts sufficiently and blow-dry them. q Be careful not to damage sliding surfaces and mating surfaces.
Revision: April 2004
TF-6
2004 Titan
PRECAUTIONS
q Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transfer.
A
Wiring Diagrams and Trouble Diagnosis
UDS0008Z
When reading wiring diagrams, refer to the following:
B
q GI-15, "How to Read Wiring Diagrams".
q PG-4, "POWER SUPPLY ROUTING CIRCUIT".
When performing trouble diagnosis, refer to the following:
C
q GI-9, "How to Follow Trouble Diagnoses".
q GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident". TF
E
F
G
H
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K
L
M
Revision: April 2004
TF-7
2004 Titan
PREPARATION
PREPARATION
Special Service Tools
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number (Kent-Moore No.) Tool name
Description
KV40104000 (--) Flange wrench a: 85 mm (3.35 in) b: 65 mm (2.56 in)
q Removing self-lock nut q Installing self-lock nut
ST33290001 (J-34286) Puller
NT659
q Removing front oil seal q Removing rear oil seal q Removing metal bushing
PFP:00002
UDS00090
KV38100500 (--) Drift a: 80 mm (3.15 in) dia. b: 60 mm (2.36 in) dia.
KV40105310 (--) Drift a: 89 mm (3.50 in) dia. b: 80.7 mm (3.17 in) dia.
KV38100200 (--) Drift a: 65 mm (2.56 in) dia. b: 49 mm (1.93 in) dia.
ST30720000 (J-25405) Drift a: 77 mm (3.03 in) dia. b: 55 mm (2.17 in) dia.
KV32102700 (--) Drift a: 48 mm (1.89 in) dia. b: 41 mm (1.61 in) dia.
Revision: April 2004
ZZA0601D ZZA0811D
q Installing front oil seal q Installing rear oil seal q Installing rear bearing q Installing front bearing
q Installing dust cover
ZZA1003D
q Removing sun gear assembly q Removing input bearing q Installing sun gear assembly
ZZA1143D
q Installing input bearing q Installing input oil seal q Installing carrier bearing
ZZA0811D
q Installing mainshaft rear bearing
ZZA0534D
TF-8
2004 Titan
Tool number (Kent-Moore No.) Tool name KV40104830 (--) Drift a: 70 mm (2.76 in) dia. b: 63.5 mm (2.50 in) dia.
ST35300000 (--) Drift a: 59 mm (2.32 in) dia. b: 45 mm (1.77 in) dia.
ST30021000 (J-22912-01) Puller
ST33710000 (--) Drift a: 89 mm (3.5 in) b: 30 mm (1.18 in) dia. c: 24 mm (0.94 in) dia.
ST35325000 (--) Drift bar a: 215 mm (8.46 in) b: 25 mm (0.98 in) dia. c: M12 × 1.5P
ST33220000 (--) Drift a: 37 mm (1.46 in) dia. b: 31 mm (1.22 in) dia. c: 22 mm (0.87 in) dia.
PREPARATION
Description
A
q Installing input oil seal
B
C
ZZA1003D
q Removing carrier bearing
TF
q Installing metal bushing
q Removing front bearing
E
NT073
q Removing carrier bearing
F
q Removing front bearing
q Removing rear bearing
G
ZZA0537D
H
q Removing needle bearing
q Removing metal bushing
q Removing rear bearing
I
J
ZZA1057D
q Removing metal bushing
K
L
NT663
q Installing needle bearing
M
ZZA1046D
Revision: April 2004
TF-9
2004 Titan
Tool number (Kent-Moore No.) Tool name ST27863000 (--) Drift a: 75 mm (2.95 in) dia. b: 62 mm (2.44 in) dia.
ST30901000 (J-26010-01) Drift a: 79 mm (3.11 in) dia. b: 45 mm (1.77 in) dia. c: 35.2 mm (1.38 in) dia.
Commercial Service Tools
Tool name Puller
PREPARATION
Description q Installing carrier bearing
ZZA1003D
q Installing rear bearing q Installing front bearing
ZZA0978D
Description q Removing companion flange q Removing mainshaft rear bearing
UDS00091
Puller
NT077
q Removing mainshaft rear bearing
Pin punch a: 6mm (0.24in) dia.
Power tool
ZZB0823D
q Removing retaining pin
NT410
q Loosening bolts and nuts
PBIC0190E
Revision: April 2004
TF-10
2004 Titan
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING NVH Troubleshooting Chart
PFP:00003
A
UDS00092
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
B
TF-105
TF-95
TF-88
TF-12
Reference page
C
BEARING (Worn or damaged)
GEAR (Worn or damaged)
SHIFT FORK (Worn or damaged) TF-110
OIL SEAL (Worn or damaged)
O-RING (Worn or damaged)
LIQUID GASKET (Damaged)
TRANSFER FLUID (Level too high)
TRANSFER FLUID (Wrong)
TRANSFER FLUID (Level low)
TF
SUSPECTED PARTS
(Possible cause)
E
F
Symptom
Noise Transfer fluid leakage
1
2
3
1
2
2
2
3
3
G
Hard to shift or will not shift
1
1
2
H
I
J
K
L
M
Revision: April 2004
TF-11
2004 Titan
TRANSFER FLUID
TRANSFER FLUID Replacement
Refer to MA-24, "Changing Transfer Fluid" .
Inspection
Refer to MA-24, "Checking Transfer Fluid" .
PFP:31001
UDS00093
UDS00094
Revision: April 2004
TF-12
2004 Titan
4WD SYSTEM Cross-section View
1. Mainshaft 4. Clutch gear 7. Drive chain 10. L-H sleeve 13. Planetary carrier assembly 16. Control shift rod 19. Transfer control device
4WD SYSTEM
2. Rear case 5. 2-4 shift fork 8. Sprocket 11. Internal gear 14. Sun gear assembly 17. Companion flange
PFP:33084
A
UDS000A1
B
C
TF
E
F
G
H
I
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K
L
SDIA2361E
M
3. Oil pump assembly
6. 2-4 sleeve
9. L-H shift fork
12. Front case
15. L-H shift rod
18. Front drive shaft
Revision: April 2004
TF-13
2004 Titan
Power Transfer
POWER TRANSFER DIAGRAM
4WD SYSTEM
UDS000C0
1. Mainshaft 4. Drive chain 7. Planetary carrier assembly
2. Clutch gear 5. Sprocket 8. Sun gear assembly
3. 2-4 sleeve 6. L-H sleeve 9. Front drive shaft
SDIA2362E
Revision: April 2004
TF-14
2004 Titan
4WD SYSTEM
POWER TRANSFER FLOW
A
B
C
TF
E
SDIA2213E
F
System Description
TRANSFER CONTROL DEVICE
UDS00096
Actuator motor and actuator position switch are integrated. Transfer control device switch 4H-4LO under 4WD G
condition and 2WD-4WD.
Actuator motor It is operated by signal from transfer control unit, and it operates control shift rod so as to switch 4H-4LO under H 4WD condition and 2WD-4WD.
Actuator position switch
I
It detects actuator motor position, and sends it to transfer control unit.
WAIT DETECTION SWITCH
It detects that transfer gear is in 4WD by 2-4 shift fork position.
J
NOTE:
If 4WD shift switch is switched to 4H or 4LO, transfer is not in 4WD completely when gear does not engage.
(Wait detection system is operating.)
K
4LO SWITCH
It detects that transfer gear is under 4LO condition by L-H shift fork position.
L
ATP SWITCH
It detects that transfer gear is under neutral condition by L-H shift fork position.
NOTE:
M
Transfer gear may be under neutral condition in 4H-4LO.
TRANSFER CONTROL UNIT q Transfer control unit controls transfer control device by input signals of each sensor and each switch. And
it switches 4H-4LO under 4WD condition and 2WD-4WD.
q Self-diagnosis can be done.
TRANSFER RELAY Applies power supply to transfer control unit.
Revision: April 2004
TF-15
2004 Titan
4WD SYSTEM
4WD SHIFT SWITCH AND INDICATOR LAMP
SDIA2363E
4WD shift switch Able to select from 2WD, 4H or 4LO. 4WD shift indicator lamp q Displays driving conditions selected by 4WD shift switch with rear indicator, front and center indicator
while engine is running. (When 4H or 4LO, 4LO indicator lamp also works on. And when 4WD warning lamp is turned on, all 4WD shift indicator lamps are turned off.) q Turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF approximately for 1 seconds after the engine starts if system is normal. 4LO indicator lamp q Displays 4LO condition while engine is running. 4LO indicator lamp flashes if transfer gear does not shift completely under 4H4LO. In this condition, transfer may be under neutral condition and A/T parking mechanism may not be operated. q Turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF approximately for 1 seconds after the engine starts if system is normal.
Revision: April 2004
TF-16
2004 Titan
4WD SYSTEM
4WD WARNING LAMP
Turns ON or FLASH when there is a malfunction in 4WD system.
A
Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF approximately for 1
seconds after the engine starts if system is normal.
4WD warning lamp indication
B
Condition
4WD warning lamp
Lamp check
Turns ON when ignition switch is turned ON.
C
Turns OFF after engine start.
4WD system malfunction During self-diagnosis
ON
(For indicated malfunction items, see the "NOTE")
TF
Flickers at malfunction mode.
Large difference in diameter of front/
Slow flashing: 1 time/2 seconds
rear tires
(Continuing to flash until turning ignition switch OFF)
E
Other than above (system normal)
OFF
NOTE:
4WD warning lamp is turned on when the following one or more parts are malfunctioning.
F
q Vehicle speed signal (from ABS)
q CAN communication line
q AD converter
G
q Engine speed signal
q 4WD shift switch
q Wait detection switch
H
q Actuator motor
q Transfer control device
q PNP switch signal
I
ATP WARNING LAMP
Even if A/T selector lever is in "P" position, vehicle may move because A/T parking mechanism does not oper- J ate when transfer is under neutral condition. ATP warning lamp is turned on so as to indicate this condition to the driver.
K
L
M
Revision: April 2004
TF-17
2004 Titan
System Diagram
4WD SYSTEM
UDS00097
PDIA0152E
COMPONENTS FUNCTION DESCRIPTION
Component parts
Function
Transfer control unit
Controls transfer control device and switches 4H-4LO under 4WD condition and 2WD-4WD.
Transfer control device
Actuator motor and actuator position switch are integrated so as to switch driving types.
Actuator motor
Controls shift rods by signals from transfer control unit.
Actuator position switch
Detects actuator motor position.
Wait detection switch
Detects that transfer is under 4WD condition.
4LO switch
Detects that transfer is under 4LO condition.
ATP switch
Detects that transfer is under neutral condition.
4WD shift switch
Able to select from 2WD, 4H or 4LO.
4WD warning lamp
q Illuminates if malfunction is detected in electrical system of 4WD system. q There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large.
ATP warning lamp
Indicates that A/T parking mechanism does not operate when A/T selector lever is in "P" position and transfer is under neutral condition.
4WD shift indicator lamp
Displays driving condition selected by 4WD shift switch.
4LO indicator lamp
Displays 4LO condition.
ABS actuator and electric unit (control unit)
Transmits the following signals via CAN communication to Transfer control unit. q Vehicle speed signal q Stop lamp switch signal (brake signal)
TCM
Transmits the following signal via CAN communication to Transfer control unit. q Output shaft revolution signal q A/T position indicator signal (PNP switch signal)
ECM
Transmits the following signal via CAN communication to Transfer control unit. q Engine speed signal
Revision: April 2004
TF-18
2004 Titan
4WD SYSTEM CAN Communication
Refer to LAN-8, "CAN COMMUNICATION" .
UDS00098
A B C TF E F G H I J K L M
Revision: April 2004
TF-19
2004 Titan
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
PFP:00004
How to Perform Trouble Diagnosis
BASIC CONCEPT
UDS0009A
q To perform trouble diagnosis, it is the most important to have understanding about vehicle systems (control and mechanism) thoroughly.
q It is also important to clarify customer complaints before inspection. First of all, reproduce symptoms, and understand them fully. Ask customer about his/her complaints carefully. In some cases, it will be necessary to check symptoms by driving vehicle with customer.
CAUTION: Customers are not professional. It is dangerous to make an easy guess like "maybe the customer means that...," or "maybe the customer mentions this symptom".
SEF233G
q It is essential to check symptoms right from the beginning in order to repair malfunctions completely. For intermittent malfunctions, reproduce symptoms based on interview with customer and past examples. Do not perform inspection on ad hoc basis. Most intermittent malfunctions are caused by poor contacts. In this case, it will be effective to shake suspected harness or connector by hand. When repairing without any symptom diagnosis, you cannot judge if malfunctions have actually been eliminated.
q After completing diagnosis, always erase diagnostic memory. Refer to TF-37, "ERASE SELF-DIAGNOSIS" .
q For intermittent malfunctions, move harness or harness connector by hand. Then check for poor contact or reproduced open circuit.
SEF234G
Revision: April 2004
TF-20
2004 Titan
TROUBLE DIAGNOSIS Location of Electrical Parts
UDS0009B
A B C TF E F G H I J K L M
Revision: April 2004
TF-21
BDIA0011E
2004 Titan
Circuit Diagram
TROUBLE DIAGNOSIS
UDS0009C
Revision: April 2004
TF-22
BDWA0005E
2004 Titan
TROUBLE DIAGNOSIS Wiring Diagram -- 4WD --
UDS0009D
A B C TF E F G H I J K L M
Revision: April 2004
TF-23
WDWA0013E
2004 Titan
TROUBLE DIAGNOSIS
Revision: April 2004
TF-24
BDWA0002E
2004 Titan
TROUBLE DIAGNOSIS
A B C TF E F G H I J K L M
Revision: April 2004
TF-25
BDWA0003E
2004 Titan
TROUBLE DIAGNOSIS
Revision: April 2004
TF-26
BDWA0004E
2004 Titan
TROUBLE DIAGNOSIS
Trouble Diagnosis Chart for Symptoms
If 4WD warning lamp turns ON, perform self-diagnosis. Refer to TF-36, "Self-Diagnostic Procedure" .
Symptom
Condition
Check item
UDS0009E
A
Reference page
4WD shift indicator lamp and 4LO indicator
Power supply and ground for transfer
lamp do not turn ON (4WD shift indicator lamp and 4LO indicator
Ignition switch: ON
control unit
B
TF-68
lamp check)
Combination meter
4WD warning lamp does not turn ON (4WD warning lamp check)
Ignition switch: ON
Power supply and ground for transfer control unit
TF-70
C
Combination meter
4WD shift switch
TF
4WD shift indicator lamp or 4LO indicator lamp do not change
Engine running
Wait detection switch 4LO switch ATP switch
TF-73
E
Transfer inner parts
CAN communication line
F
4WD shift switch
ATP warning lamp does not turn ON
Engine running
PNP switch signal ATP switch
TF-74
G
Combination meter
Transfer inner parts
H
Wait detection switch
4WD shift indicator lamp repeats flashing Engine running
4LO switch Transfer inner parts
TF-76
I
4WD warning lamp flashes slowly Slow flashing: 1 time/2 seconds
While driving
Tire size is different between front and rear of vehicle.
Transfer Control Unit Input/Output Signal Reference Values
TRANSFER CONTROL UNIT INSPECTION TABLE
TF-77
J
UDS0009F
Specifications with CONSULT-II
K
Monitored item [Unit]
Content
Condition
Display value
Vehicle stopped
0 km/h (0 mph)
VHCL/S SEN·FR [km/h] or [mph]
Vehicle running Wheel speed (Front wheel) CAUTION:
L
Approximately equal to the indica-
Check air pressure of tire under standard condi- tion on speedome-
tion.
ter (Inside of ±10%) M
Vehicle stopped
0 km/h (0 mph)
VHCL/S SEN·RR [km/h] or [mph]
Wheel speed (Rear wheel)
Vehicle running
CAUTION: Check air pressure of tire under standard condition.
Approximately equal to the indication on speedometer (Inside of ±10%)
ENGINE SPEED [rpm] Engine speed
Engine stopped (Engine speed: Less than 400 rpm)
Engine running (Engine speed: 400 rpm or more)
0 rpm
Approximately equal to the indication on tachometer
BATTERY VOLT [V]
Power supply voltage for transfer control unit
Ignition switch: ON
Battery voltage
2WD SWITCH [ON/ OFF]
Input condition from 4WD 4WD shift switch: 2WD
shift switch
4WD shift switch: 4H and 4LO
ON OFF
Revision: April 2004
TF-27
2004 Titan
TROUBLE DIAGNOSIS
Monitored item [Unit] 4H SWITCH [ON/OFF] 4L SWITCH [ON/OFF] 4L POSI SW [ON/OFF]
ATP SWITCH [ON/OFF]
WAIT DETCT SW [ON/ OFF]
4WD MODE [2H/4H/4L]
VHCL/S COMP [km/h] or [mph]
SHIFT ACT 1 [ON/OFF]
SHIFT AC MON1 [ON/ OFF]
SHIFT ACT 2 [ON/OFF]
SHIFT AC MON2 [ON/ OFF]
Content Input condition from 4WD shift switch Input condition from 4WD shift switch
Condition of 4LO switch
Condition of ATP switch
Condition of wait detection switch
Control status of 4WD (Output condition of 4WD shift indicator lamp and 4LO indicator lamp)
Vehicle speed
Output condition to actuator motor (clockwise)
Check signal (reinput signal) for transfer control unit signal output
Output condition to actuator motor (counterclockwise)
Check signal (reinput signal) for transfer control unit signal output
Condition
4WD shift switch: 4H
4WD shift switch: 2WD and 4LO
4WD shift switch: 4LO
4WD shift switch: 2WD and 4H
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch: 4LO Except the above
q Vehicle stopped q Engine running q A/T selector lever "P"
position q Brake pedal depressed
4WD shift switch : 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Except the above
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4H and 4LO
4WD shift switch: 2WD
4WD shift switch (Engine running)
2WD 4H 4LO
Vehicle stopped
Vehicle running
CAUTION: Check air pressure of tire under standard condition.
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4H to 4LO
Except the above
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4H to 4LO
Except the above
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4LO to 4H
Except the above
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4LO to 4H
Except the above
Display value ON OFF ON OFF ON
OFF
ON
OFF ON
OFF 2H 4H 4L 0 km/h (0 mph) Approximately equal to the indication on speedometer (Inside of ±10%) ON
OFF
ON
OFF
ON
OFF
ON
OFF
Revision: April 2004
TF-28
2004 Titan
TROUBLE DIAGNOSIS
Monitored item [Unit]
Content
Condition
Display value
A
Operating condition of
q Vehicle stopped q Engine running
When 4WD shift switch is operated
ON
SHIFT ACT/R MON
actuator motor relay (inte-
[ON/OFF]
grated in transfer control unit)
q A/T selector lever "N" position
When 4WD shift switch is not operated
OFF
B
q Brake pedal depressed
SHIFT POS SW1 [ON/ OFF]
Condition of actuator posi- 4WD shift switch: 2WD and 4LO
tion switch 1
4WD shift switch: 4H
ON
C
OFF
SHIFT POS SW2 [ON/ OFF]
Condition of actuator posi- 4WD shift switch: 4LO
tion switch 2
4WD shift switch: 2WD and 4H
ON
OFF
TF
SHIFT POS SW3 [ON/ OFF]
SHIFT POS SW4 [ON/ OFF]
Condition of actuator posi- 4WD shift switch: 2WD and 4H
tion switch 3
4WD shift switch: 4LO
Condition of actuator posi- 4WD shift switch: 4H and 4LO
tion switch 4
4WD shift switch: 2WD
ON
OFF
E
ON
OFF
4WD FAIL LAMP [ON/ OFF]
4WD warning lamp condi- 4WD warning lamp: ON
tion
4WD warning lamp: OFF
ON
F
OFF
2WD IND [ON/OFF]
Rear indicator of 4WD shift Rear indicator of 4WD shift indicator lamp: ON
indicator lamp condition
Rear indicator of 4WD shift indicator lamp: OFF
ON
OFF
G
Front and center indicator of 4WD shift indicator lamp Front and center indicator : ON
ON
4H IND [ON/OFF]
of 4WD shift indicator lamp
H
condition
Front and center indicator of 4WD shift indicator lamp : OFF
OFF
4L IND [ON/OFF]
4LO indicator lamp condi- 4LO indicator lamp: ON
tion
4LO indicator lamp: OFF
ON
I
OFF
Specifications between transfer control unit terminals
TRANSFER CONTROL UNIT TERMINAL CONNECTOR LAYOUT
J
K
L
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
1
W CAN H
2
R CAN L
3
L K-LINE (CONSULT-II signal)
6
B Ground
Always
4WD shift switch: 2WD and 4LO
10
LG/B Actuator position switch 1
4WD shift switch: 4H
4WD shift switch: 4LO
11
W/L Actuator position switch 2
4WD shift switch: 2WD and 4H
4WD shift switch: 2WD and 4H
12
BR Actuator position switch 3
4WD shift switch: 4LO
Revision: April 2004
TF-29
M
PDIA0189E
Data (Approx.)
0V 0V Battery voltage 0V Battery voltage 0V Battery voltage
2004 Titan
TROUBLE DIAGNOSIS
Terminal 13 14 15 16
17 18 19
23
24
25 27 28 31 32
Wire color
Item
BR/W Actuator position switch 4
G/W 4WD shift switch (2WD)
O 4WD shift switch (4H)
R 4WD shift switch (4LO)
G/Y Wait detection switch
B Ground
W
Power supply (Memory back-up)
R/B ATP switch
V 4LO switch
L/W Ignition switch monitor Y/R Actuator motor power supply Y/L Actuator motor (+) G/B Actuator motor (-) B Actuator motor ground
Condition
4WD shift switch: 4H and 4LO
4WD shift switch: 2WD
4WD shift switch: 2WD
4WD shift switch: 4H and 4LO
4WD shift switch: 4H Ignition switch: ON
4WD shift switch: 2WD and 4LO
4WD shift switch: 4LO
4WD shift switch: 2WD and 4H
q Vehicle stopped 4WD shift switch: 4H and 4LO
q Engine running
q A/T selector lever "N" position 4WD shift switch: 2WD
q Brake pedal depressed
Always
Ignition switch: ON
Ignition switch: OFF
q Vehicle stopped
q Engine running
q A/T selector lever "P" position
q Brake pedal depressed
4WD shift switch: 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Except the above
q Vehicle stopped
q Engine running
q A/T selector lever "N" position
q Brake pedal depressed
4WD shift switch: 4LO Except the above
Ignition switch: ON
Ignition switch: OFF
Ignition switch: ON
Ignition switch: OFF
4WD shift switch: 2WD to 4H or 4H to 4LO or 2WD to 4LO
Except the above
4WD shift switch: 4LO to 4H or 4H to 2WD or 4LO to 2WD
Except the above
Always
Data (Approx.) 0V Battery voltage Battery voltage 0V Battery voltage 0V Battery voltage 0V 0V
Battery voltage
0V Battery voltage Battery voltage 0V
Battery voltage
0V
Battery voltage
Battery voltage 0V Battery voltage 0V Battery voltage 0V Battery voltage 0V 0V
Revision: April 2004
TF-30
2004 Titan
TROUBLE DIAGNOSIS
Terminal
Wire color
Item
35
B/W
4WD shift indicator lamp (Rear indicator)
36
L
4WD shift indicator lamp (Front and center indicator)
37
W/G 4LO indicator lamp
38
W/B 4WD warning lamp
39
L/B ATP warning lamp
40
Y Transfer relay 2
44
Y/R Power supply
45
Y/R Power supply
Condition
Data (Approx.) A
Rear indicator of 4WD shift indicator lamp : ON
0V
Rear indicator of 4WD shift indicator lamp : OFF
Battery voltage
B
Engine running
Front and center indicator of 4WD shift indicator lamp: ON
Front and center indicator of 4WD shift indicator lamp: OFF
4LO indicator lamp: ON
0V
C
Battery voltage
0V
TF
4LO indicator lamp: OFF
Battery voltage
4WD warning lamp: ON 4WD warning lamp: OFF
0V
E
Battery voltage
q Vehicle stopped q Engine running
4WD shift switch: 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Battery voltage
F
q A/T selector
lever "P" position Except the above
q Brake pedal depressed
0V
G
ignition switch ON
0V
ignition switch OFF Ignition switch: ON
Battery voltage H
Battery voltage
Ignition switch: OFF Ignition switch: ON
0V
Battery voltage I
Ignition switch: OFF
0V
CAUTION:
J
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
CONSULT-II Function
FUNCTION
Diagnostic test mode
Function
Self-diagnostic results
q Self-diagnostic results can be read and erased quickly.
UDS0009G
K
Reference page
TF-33
L
Data monitor
q Input/Output data in the transfer control unit can be read.
CAN diagnostic support monitor
q The results of transmit/receive diagnosis of CAN communication can be read.
TF-34
LAN-6
M
CONSULT-II SETTING PROCEDURE
CAUTION: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carry out CAN communication.
q For details, refer to the separate "CONSULT-II Operations Manual".
1. Turn ignition switch "OFF".
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector on vehicle.
3. Turn ignition switch "ON".
Revision: April 2004
TF-31
BDIA0013E
2004 Titan
TROUBLE DIAGNOSIS
4. Touch "START (NISSAN BASED VHCL)".
5. Touch "ALL MODE AWD/4WD". If "ALL MODE AWD/4WD" is not indicated, go to GI-38, "CONSULT-II Data Link Connector (DLC) Circuit" .
6. Perform each diagnostic test mode according to each service procedure.
BCIA0029E BCIA0030E
Revision: April 2004
TF-32
2004 Titan
TROUBLE DIAGNOSIS
SELF-DIAG RESULT MODE
Operation procedure
A
1. Perform "CONSULT-II SETTING PROCEDURE". Refer to TF-31, "CONSULT-II SETTING PROCEDURE"
.
2. With engine at idle, touch "SELF-DIAG RESULTS".
B
Display shows malfunction experienced since the last erasing
operation.
C
TF
Display item list
E
PDIA0226E
Items (CONSULT-II screen terms)
Diagnostic item is detected when...
Check item
F
*INITIAL START* [P1801]
CONTROL UNIT 1 [P1802]
q Due to removal of battery which cuts off power supply to transfer TF-38, "Power Supply Circuit For
control unit, self-diagnosis memory function is suspended.
Transfer Control Unit"
G
q Malfunction is detected in the memory (RAM) system of transfer control unit.
TF-40, "Transfer Control Unit"
CONTROL UNIT 2 [P1803]
q Malfunction is detected in the memory (ROM) system of transfer control unit.
TF-40, "Transfer Control Unit"
H
CONTROL UNIT 3 [P1804]
q Malfunction is detected in the memory (EEPROM) system of transfer control unit.
TF-40, "Transfer Control Unit"
I
VHCL SPEED SEN·AT [P1807]
q Malfunction is detected in output shaft revolution signal that is
output from TCM through CAN communication.
TF-41, "Output Shaft Revolution
Signal (TCM)"
q Improper signal is input while driving.
J
q Malfunction is detected in vehicle speed signal that is output from
VHCL SPEED SEN·ABS
ABS actuator and electric unit (control unit) through CAN commu- TF-42, "Vehicle Speed Sensor
[P1808]
nication.
(ABS)"
q Improper signal is input while driving.
K
CONTROL UNIT 4 [P1809]
4L POSI SW TF [P1810]
q AD converter system of transfer control unit is malfunctioning.
TF-40, "Transfer Control Unit"
L
q Improper signal from 4LO switch is input due to open or short circuit.
TF-42, "4LO Switch"
BATTERY VOLTAGE [P1811]
q Power supply voltage for transfer control unit is abnormally low TF-38, "Power Supply Circuit For
while driving.
Transfer Control Unit"
M
4WD MODE SW [P1813]
q More than two switch inputs are simultaneously detected due to short circuit of 4WD shift switch.
TF-45, "4WD Shift Switch"
4WD DETECT SWITCH [P1814]
q Improper signal from wait detection switch is input due to open or short circuit.
TF-49, "Wait Detection Switch"
PNP SW/CIRC [P1816]
q When A/T PNP switch signal is malfunction or communication error between the vehicles.
TF-52, "PNP Switch Signal"
SHIFT ACTUATOR [P1817]
q Motor does not operate properly due to open or short circuit in actuator motor.
q Malfunction is detected in the actuator motor. (When 4WD shift switch is operated and actuator motor is not operated)
TF-53, "Actuator Motor"
SHIFT ACT POSI SW [P1818]
q Improper signal from actuator position switch is input due to open or short circuit.
q Malfunction is detected in the actuator position switch.
TF-57, "Actuator Position Switch"
SHIFT ACT CIR [P1819]
q Malfunction is detected in the transfer relay 2. q Malfunction occurs in transfer control device drive circuit.
TF-38, "Power Supply Circuit For Transfer Control Unit", TF-60, "Transfer Control Device"
Revision: April 2004
TF-33
2004 Titan
TROUBLE DIAGNOSIS
Items (CONSULT-II screen terms)
Diagnostic item is detected when...
Check item
ENGINE SPEED SIG [P1820]
q Malfunction is detected in engine speed signal that is output from ECM through CAN communication.
q Improper signal is input while driving.
TF-63, "Engine Speed Signal"
CAN COMM CIRCUIT [U1000]
q Malfunction has been detected from CAN communication line.
TF-64, "CAN Communication Line"
NO DTC IS DETECTED.
FURTHER TESTING MAY q No NG item has been detected.
--
BE REQUIRED.
CAUTION: If "CAN COMM CIRCUIT [U1000]" is displayed with other DTCs, first perform the trouble diagnosis for CAN communication line.
NOTE: If "SHIFT ACT POSI SW [P1818]" or "SHIFT ACT CIR [P1819]" is displayed, first erase self-diagnostic results. ("SHIFT ACT POSI SW [P1818]" or "SHIFT ACT CIR [P1819]" may be displayed after installing transfer control unit or transfer assembly.)
How to erase self-diagnostic results 1. Perform applicably inspection of malfunctioning item and then repair or replace. 2. Start engine and select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Touch "ERASE" on CONSULT-II screen to erase DTC memory.
CAUTION: If memory cannot be erased, perform applicably diagnosis.
DATA MONITOR MODE Operation procedure 1. Perform "CONSULT-II SETTING PROCEDURE". Refer to TF-31, "CONSULT-II SETTING PROCEDURE"
.
2. Touch "DATA MONITOR".
3. Select from "SELECT MONITOR ITEM", screen of data monitor mode is displayed.
NOTE: When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS. Also, any malfunction detected while in this mode will be displayed at real time.
Display item list
Monitor item selection
×: Standard : Not applicable
Monitored item (Unit)
ECU INPUT SIGNALS
MAIN SIGNALS
SELECTION FROM MENU
Remarks
Wheel speed calculated by ABS
actuator and electric unit (control
VHCL/S SEN·FR [km/h] or [mph]
×
×
unit).
Signal input with CAN communi-
cation line.
Wheel speed calculated by TCM.
VHCL/S SEN·RR [km/h] or [mph]
×
×
Signal input with CAN communi-
cation line.
ENGINE SPEED [rpm]
Engine speed is displayed.
×
×
Signal input with CAN communi-
cation line.
BATTERY VOLT [V]
×
×
Power supply voltage for transfer control unit.
2WD SWITCH [ON/OFF] 4H SWITCH [ON/OFF] 4L SWITCH [ON/OFF]
×
×
4WD shift switch signal status is
×
×
displayed. (4L means 4LO of 4WD shift
×
×
switch.)
Revision: April 2004
TF-34
2004 Titan
TROUBLE DIAGNOSIS
Monitor item selection
A
Monitored item (Unit)
ECU INPUT SIGNALS
MAIN SIGNALS
SELECTION FROM MENU
Remarks
This means 4LO switch.
B
4L POSI SW [ON/OFF]
×
×
4LO switch signal status is dis-
played.
ATP SWITCH [ON/OFF]
×
×
ATP switch signal status is displayed.
C
WAIT DETCT SW [ON/OFF]
×
×
Wait detection switch signal status is displayed.
TF
Control status of 4WD recognized
4WD MODE [2H/4H/4L]
×
×
by transfer control unit. (2WD, 4H
or 4LO)
E
VHCL/S COMP [km/h] or [mph]
×
×
Vehicle speed recognized by transfer control unit.
SHIFT ACT 1 [ON/OFF]
×
×
Output condition to actuator motor (clockwise)
F
SHIFT ACT MON 1 [ON/OFF]
×
Check signal (reinput signal) for transfer control unit signal output
G
SHIFT ACT 2 [ON/OFF]
×
×
Output condition to actuator motor (counterclockwise)
SHIFT ACT MON 2 [ON/OFF]
×
Check signal (reinput signal) for transfer control unit signal output
H
Operating condition of actuator
SFT ACT/R MON [ON/OFF]
×
motor relay (integrated in transfer
control unit)
I
SHIFT POS SW 1 [ON/OFF]
×
×
Condition of actuator position switch 1
SHIFT POS SW 2 [ON/OFF]
×
×
Condition of actuator position switch 2
J
SHIFT POS SW 3 [ON/OFF]
×
×
Condition of actuator position switch 3
K
SHIFT POS SW 4 [ON/OFF]
×
×
Condition of actuator position switch 4
4WD FAIL LAMP [ON/OFF]
×
×
Control status of 4WD warning lamp is displayed.
L
2WD IND [ON/OFF] 4H IND [ON/OFF]
×
Control status of 4WD shift indicator lamp (rear) is displayed.
M
Control status of 4WD shift indi-
×
cator lamp (front and center) is
displayed.
4L IND [ON/OFF]
×
Control status of 4LO indicator lamp is displayed.
Voltage [V]
×
The value measured by the voltage probe is displayed.
Frequency [Hz]
×
DUTY-HI (high) [%] DUTY-LOW (low) [%] PLS WIDTH-HI [msec]
×
×
The value measured by the pulse probe is displayed.
×
PLS WIDTH-LOW [msec]
×
Revision: April 2004
TF-35
2004 Titan
TROUBLE DIAGNOSIS
Self-Diagnostic Procedure
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
Refer to TF-33, "SELF-DIAG RESULT MODE" .
UDS000A2
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)
Description
If the engine starts when there is something wrong with the 4WD system, the 4WD warning lamp turns ON or flickers in the combination meter. When the system functions properly, the warning lamp turns ON when the ignition switch is turned to "ON", and it turns OFF after engine starts. To locate the cause of a problem, start the self-diagnosis function. The 4WD warning lamp in the combination meter will indicate the problem area by flickering according to the self-diagnostic results. As for the details of the 4WD warning lamp flickering patterns, refer to TF-36, "Diagnostic procedure" .
Diagnostic procedure 1. Warn up engine. 2. Turn ignition switch "ON" and "OFF" at least twice, and then turn ignition switch "OFF". 3. Move A/T selector lever to "P" position. 4. Turn 4WD shift switch to "2WD" position. 5. Turn ignition switch "ON". (Do not start engine.) 6. 4WD warning lamp ON.
If 4WD warning lamp does not turn ON, refer to TF-70, "4WD Warning Lamp Does Not Turn ON" . 7. Move A/T selector lever to "R" position. 8. Turn 4WD shift switch to "2WD", "4H" and "2WD" in order. 9. Move A/T selector lever to "P" position. 10. Turn 4WD shift switch to "4H", "2WD" and "4H" in order. 11. Move A/T selector lever to "N" position. 12. Turn 4WD shift switch to "2WD" position. 13. Move A/T selector lever to "P" position. 14. Read the flickering of 4WD warning lamp.
Refer to TF-36, "Judgement self-diagnosis" .
Judgement self-diagnosis When a malfunction is detected, the malfunction route is indicated by flickering of the 4WD warning lamp.
Flickering pattern or flickering condition
Items
2
Output shaft revolution signal (from TCM)
3
Vehicle speed signal (from ABS)
4
CAN communication
PDIA0227E
Diagnostic item is detected when...
Check item
q Malfunction is detected in output shaft revolution signal that is output from TCM through CAN communication.
q Improper signal is input while driving.
q Malfunction is detected in vehicle speed signal that is output from ABS actuator and electric unit (control unit) through CAN communication.
q Improper signal is input while driving.
q Malfunction has been detected from CAN communication.
TF-41, "Output Shaft Revolution Signal (TCM)"
TF-42, "Vehicle Speed Sensor (ABS)"
TF-64, "CAN Communication Line"
Revision: April 2004
TF-36
2004 Titan
TROUBLE DIAGNOSIS
Flickering pattern or flickering condition
Items
Diagnostic item is detected when...
Check item
A
5
AD converter
6
4LO switch
q AD converter system of transfer control unit is malfunc- TF-40, "Transfer Con-
tioning.
trol Unit"
q Improper signal from 4LO switch is input due to open or short circuit.
TF-42, "4LO Switch"
B
q Malfunction is detected in engine speed signal that is
7
Engine speed signal
output from ECM through CAN communication.
TF-63, "Engine Speed Signal"
C
q Improper signal is input while driving.
8
Power supply
q Power supply voltage for transfer control unit is abnormally low while driving.
TF-38, "Power Supply Circuit For Transfer Control Unit"
TF
9
4WD shift switch
q More than two switch inputs are simultaneously detected due to short circuit of 4WD shift switch.
TF-45, "4WD Shift Switch"
E
10
Wait detection switch
q Improper signal from wait detection switch is input due TF-49, "Wait Detection
to open or short circuit.
Switch"
11
Actuator motor
q Motor does not operate properly due to open or short
F
circuit in actuator motor.
q Malfunction is detected in the actuator motor. (When
TF-53, "Actuator Motor"
4WD shift switch is operated and actuator motor is not
operated.)
G
q Improper signal from actuator position switch is input
12
Actuator position switch due to open or short circuit. q Malfunction is detected in the actuator position switch.
TF-57, "Actuator Position Switch"
H
TF-38, "Power Supply
q Malfunction is detected in the transfer relay 2.
Circuit For Transfer
13
Transfer control device q Malfunction occurs in transfer control device drive cir- Control Unit", TF-60,
I
cuit.
"Transfer Control
Device"
14
PNP switch signal
q When A/T PNP switch signal is malfunction or commu- TF-52, "PNP Switch
nication error between the vehicles.
Signal"
J
Repeats flickering every 0.25 sec.
Data erase display
q Power supply failure of memory back-up. q Battery is disconnected for a long time. q Battery performance is poor.
TF-38, "Power Supply
Circuit For Transfer
K
Control Unit"
Repeats flickering every 2 to 5 sec.
--
Circuits that the self-diagnosis covers have no malfunction.
--
L
No flickering NOTE:
PNP switch or 4WD shift switch
TF-52, "PNP Switch PNP switch or 4WD shift switch circuit is shorted or open. Signal" or TF-45, "4WD
Shift Switch"
M
If "actuator position switch" or "transfer control device" is displayed, first erase self-diagnostic results. (They may be displayed after
installing transfer control unit or transfer assembly.)
ERASE SELF-DIAGNOSIS
q In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is stored into the control unit as necessary during use by the user. This memory is not erased no matter how many times the ignition switch is turned ON and OFF.
q However, this information is erased by turning ignition switch "OFF" after performing self-diagnostics or by erasing the memory using the CONSULT-II.
Revision: April 2004
TF-37
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
TROUBLE DIAGNOSIS FOR SYSTEM
Power Supply Circuit For Transfer Control Unit
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item [Unit]
Content
Condition
BATTERY VOLT [V]
Power supply voltage for transfer control unit
Ignition switch: ON
PFP:00000
UDS0009H
Display value Battery voltage
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
Data (Approx.)
6
B Ground
Always
0V
18
B Ground
Always
0V
19
W
Power supply (Memory back-up)
Ignition switch: ON Ignition switch: OFF
Battery voltage Battery voltage
25
L/W Ignition switch monitor
Ignition switch: ON Ignition switch: OFF
Battery voltage 0V
32
B Actuator motor ground
Always
0V
40
Y Transfer relay 2
Ignition switch: ON Ignition switch: OFF
0V Battery voltage
44
Y/R Power supply
Ignition switch: ON Ignition switch: OFF
Battery voltage 0V
45
Y/R Power supply
Ignition switch: ON Ignition switch: OFF
Battery voltage 0V
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Revision: April 2004
TF-38
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY
A
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector terminals and ground.
Connector E142
E143
Terminal (Wire color) 19 (W) - Ground 25 (L/W) - Ground 40 (Y) - Ground 44 (Y/R) - Ground 45 (Y/R) - Ground
Voltage (Approx.) Battery voltage 0V Battery voltage 0V 0V
B C TF E
SDIA2420E
4. Turn ignition switch "ON". (Do not start engine.)
F
5. Check voltage between transfer control unit harness connector
terminals and ground.
G
Connector
Terminal (Wire color)
Voltage (Approx.)
19 (W) - Ground
E142
25 (L/W) - Ground
H
40 (Y) - Ground
Battery voltage
E143
44 (Y/R) - Ground 45 (Y/R) - Ground
I
SDIA2421E
OK or NG
OK >> GO TO 2.
J
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
q 10A fuse [No. 26 or 59, located in the IPDM E/R]
q 20A fuse [No. 53, located in the IPDM E/R]
K
q Harness for short or open between battery and transfer control unit harness connector terminals 19, 40, 44 and 45
q Harness for short or open between ignition switch and transfer control unit harness connector L terminal 25
q Harness for short or open between ignition switch and transfer relay 1 harness connector E46
terminal 2 (L/W)
M
q Harness for short or open between transfer relay 1 harness connector E46 terminal 1 (B) and ground
q Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" . q Transfer relay 1, 2. Refer to TF-40, "COMPONENT INSPECTION" .
Revision: April 2004
TF-39
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
2. CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector. 3. Check continuity between transfer control unit harness connec-
tor E142 terminals 6 (B), 18 (B), E143 terminal 32 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK TRANSFER CONTROL UNIT
PDIA0199E
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 4. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
4. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while. OK or NG
OK >> INSPECTION END NG >> Replace transfer control unit.
COMPONENT INSPECTION 1. Apply 12V direct current between transfer relay 1, 2 terminals 1
and 2. 2. Check continuity between relay terminals 3 and 5.
Condition 12V direct current supply between terminals 1 and 2 OFF
3. If NG, replace the transfer relay 1 or 2.
Continuity Yes No
Transfer Control Unit
DIAGNOSTIC PROCEDURE
1. INSPECTION START
Do you have CONSULT-II? YES or NO
YES >> GO TO 2. NO >> GO TO 3.
SCIA1245E UDS0009I
Revision: April 2004
TF-40
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
2. PERFORM SELF-DIAGNOSIS (WITH CONSULT-II) A
With CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II.
B
3. Touch "ERASE".
4. Turn ignition switch "OFF" and wait at least 10 seconds.
C
5. Perform the self-diagnosis again.
Is the "CONTROL UNIT 1 [P1802]", "CONTROL UNIT 2 [P1803]", "CONTROL UNIT 3 [P1804]" or "CONTROL
UNIT 4 [P1809]" displayed?
TF
YES >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" .
NO >> INSPECTION END
3. PERFORM SELF-DIAGNOSIS (WITHOUT CONSULT-II)
E
Without CONSULT-II
1. Perform the self-diagnosis and then erase self-diagnostic results. Refer to TF-36, "SELF-DIAGNOSTIC F PROCEDURE (WITHOUT CONSULT-II)" and TF-37, "ERASE SELF-DIAGNOSIS" .
2. Perform the self-diagnosis again.
Do the self-diagnostic results indicate AD converter?
G
YES >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" . NO >> INSPECTION END
Output Shaft Revolution Signal (TCM)
DIAGNOSTIC PROCEDURE
H
UDS000A5
1. CHECK DTC WITH TCM
I
Perform self-diagnosis with TCM. Refer to AT-97, "CONSULT-II SETTING PROCEDURE" .
Is any malfunction detected by self-diagnosis?
J
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2. CHECK TRANSFER CONTROL UNIT
K
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Ref-
erence Values" .
L
OK or NG
OK >> GO TO 3. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector. M
If any items are damaged, repair or replace damaged parts.
3. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG OK >> INSPECTION END NG >> Perform self-diagnosis with TCM again. Refer to AT-97, "SELF-DIAGNOSTIC RESULT MODE" .
Revision: April 2004
TF-41
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
Vehicle Speed Sensor (ABS)
DIAGNOSTIC PROCEDURE
1. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
UDS000A4
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-24, "SELF-DIAGNOSIS" (without VDC) or BRC-24, "SELF-DIAGNOSIS" (with VDC). Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. NO >> GO TO 2.
2. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 3. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
3. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to BRC-24,
"SELF-DIAGNOSIS" (without VDC) or BRC-24, "SELF-DIAGNOSIS" (with VDC).
4LO Switch
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item
Content
Condition
q Vehicle stopped
4WD shift switch: 4LO
4L POSI SW [ON/OFF] Condition of 4LO switch
q Engine running
q A/T selector lever "N" position
Except the above
q Brake pedal depressed
UDS000A8
Display value ON
OFF
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
Data (Approx.)
24
V 4LO switch
q Vehicle stopped
q Engine running
q A/T selector lever "N" position
q Brake pedal depressed
4WD shift switch: 4LO Except the above
0V Battery voltage
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Revision: April 2004
TF-42
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK 4LO POSITION SWITCH SIGNAL
With CONSULT-II 1. Start engine. 2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Read out the value of "4L POSI SW".
Condition
q Vehicle stopped q Engine running q A/T selector lever "N" position q Brake pedal depressed
4WD shift switch: 4LO Except the above
Display value ON
OFF
Without CONSULT-II
1. Start engine.
2. Check voltage between transfer control unit harness connector terminal and ground.
Terminal Connector (Wire
color)
Condition
Voltage (Approx.)
E142
24 (V) Ground
q Vehicle stopped
q Engine running
q A/T selector lever "N" position
q Brake pedal depressed
4WD shift switch: 4LO Except the above
0V
Battery voltage
OK or NG
OK >> GO TO 5. NG >> GO TO 2.
2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND 4LO SWITCH
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector and the 4LO switch harness connector. 3. Check continuity between transfer control unit harness connec-
tor E142 terminal 24 (V) and 4LO switch harness connector F60 terminal 13 (V).
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair or replace damaged parts.
A
B
C
TF
E
PDIA0220E
F
G
H
I
J
PDIA0201E
K
L
M
PDIA0202E
Revision: April 2004
TF-43
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
3. CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF". 2. Disconnect 4LO switch harness connector. 3. Check continuity between 4LO switch harness connector F60
terminal 12 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 4. NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK 4LO SWITCH
PDIA0203E
1. Turn ignition switch "OFF". 2. Disconnect 4LO switch harness connector. 3. Remove 4LO switch. 4. Push and release 4LO switch and check continuity between
4LO switch harness connector F60 terminals 12 and 13.
Connector
Terminal
Condition
Push 4LO switch
F60
12 - 13
Release 4LO switch
OK or NG
OK >> GO TO 5. NG >> Replace 4LO switch.
5. CHECK TRANSFER CONTROL UNIT
Continuity Yes No
PDIA0204E
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 6. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while. OK or NG
OK >> INSPECTION END NG >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" .
COMPONENT INSPECTION 1. Turn ignition switch "OFF". 2. Disconnect 4LO switch harness connector. 3. Remove 4LO switch.
Revision: April 2004
TF-44
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
4. Push and release 4LO switch and check continuity between
4LO switch harness connector F60 terminals 12 and 13.
A
Connector
Terminal
Condition
Continuity
Push 4LO switch
Yes
F60
12 - 13
B
Release 4LO switch
No
5. If NG, replace the 4LO switch. C
4WD Shift Switch
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item [Unit]
Content
Condition
PDIA0204E UDS000AA
TF
Display value
E
2WD SWITCH [ON/ OFF]
4H SWITCH [ON/OFF]
Input condition from 4WD shift switch
Input condition from 4WD shift switch
4WD shift switch: 2WD 4WD shift switch: 4H and 4LO 4WD shift switch: 4H 4WD shift switch: 2WD and 4LO
ON
OFF
F
ON
OFF
4L SWITCH [ON/OFF]
Input condition from 4WD 4WD shift switch: 4LO
shift switch
4WD shift switch: 2WD and 4H
ON
G
OFF
4WD MODE [2H/4H/4L]
Control status of 4WD (Output condition of 4WD shift indicator lamp and 4LO indicator lamp)
4WD shift switch (Engine running)
2WD 4H 4LO
2H
H
4H 4L
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
14
G/W 4WD shift switch (2WD)
4WD shift switch: 2WD 4WD shift switch: 4H and 4LO
15
O 4WD shift switch (4H)
4WD shift switch: 4H Ignition switch: ON
4WD shift switch: 2WD and 4LO
I
Data (Approx.)
J
Battery voltage 0V
Battery voltage K
0V
16
R 4WD shift switch (4LO)
4WD shift switch: 4LO 4WD shift switch: 2WD and 4H
Battery voltage L
0V
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
M
Revision: April 2004
TF-45
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK 4WD SHIFT SWITCH SIGNAL
With CONSULT-II 1. Turn ignition switch "ON". 2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Read out ON/OFF switching action of the "2WD SWITCH", "4H
SWITCH", "4L SWITCH" with operating 4WD shift switch.
Without CONSULT-II
1. Turn ignition switch "ON".
2. Check voltage between transfer control unit harness connector terminals and ground.
Connector E142
Terminal (Wire color)
14 (G/w) Ground
15 (O) Ground
16 (R) Ground
Condition
4WD shift switch: 2WD 4WD shift switch: 4H and 4LO 4WD shift switch: 4H 4WD shift switch: 2WD and 4LO 4WD shift switch: 4LO 4WD shift switch: 2WD and 4H
Voltage (Approx.) Battery voltage
0V Battery voltage
0V Battery voltage
0V
OK or NG
OK >> GO TO 5. NG >> GO TO 2.
SDIA2382E PDIA0209E
Revision: April 2004
TF-46
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
2. CHECK 4WD SHIFT SWITCH POWER SUPPLY CIRCUIT A
1. Turn ignition switch "ON".
2. Disconnect 4WD shift switch harness connector.
3. Check voltage between 4WD shift switch harness connector ter-
B
minal 1 and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
C
M141
1 (Y/R) - Ground
Battery voltage
TF
E
PDIA0210E
4. Turn ignition switch "OFF".
5. Check voltage between 4WD shift switch harness connector ter-
F
minal 1 and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
G
M141
1 (Y/R) - Ground
0V
OK or NG
OK >> GO TO 3. NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
q 10A fuse [No. 26 or 59 located in the IPDM E/R]
H
SDIA2383E
I
q Harness for short or open between battery and 4WD shift switch harness connector terminal 1
q Harness for short or open between ignition switch and transfer relay 1 harness connector E46
terminal 2 (L/W)
J
q Harness for short or open between transfer relay 1 harness connector E46 terminal 1 (B) and ground.
q Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
K
q Transfer relay 1. Refer to TF-40, "COMPONENT INSPECTION" .
3. CHECK HARNESS BETWEEN 4WD SHIFT SWITCH AND TRANSFER CONTROL UNIT
L
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector and the 4WD shift switch harness connector.
M
3. Check continuity between the following terminals.
Transfer control unit harness connector E142 terminal 14 (G/W) and 4WD shift switch harness connector M141 terminal 3 (G/W).
Transfer control unit harness connector E142 terminal 15 (O) and 4WD shift switch harness connector M141 terminal 5 (O).
Transfer control unit harness connector E142 terminal 16 (R) and 4WD shift switch harness connector M141 terminal 6 (R).
Continuity should exist.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4. NG >> Repair or replace damaged parts.
PDIA0211E
Revision: April 2004
TF-47
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
4. CHECK 4WD SHIFT SWITCH
1. Turn ignition switch "OFF".
2. Disconnect 4WD shift switch harness connector.
3. Operate 4WD shift switch and check continuity between 4WD shift switch harness connector terminals.
Connector
Terminal
Condition
1 - 3
4WD shift switch: 2WD 4WD shift switch: 4H and 4LO
M141
1 - 5
4WD shift switch: 4H 4WD shift switch: 2WD and 4LO
1 - 6
4WD shift switch: 4LO 4WD shift switch: 2WD and 4H
OK or NG
OK >> GO TO 5. NG >> Replace 4WD shift switch.
5. CHECK TRANSFER CONTROL UNIT
Continuity Yes No Yes No Yes No
PDIA0212E
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 6. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while. OK or NG
OK >> INSPECTION END NG >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" .
COMPONENT INSPECTION 1. Turn ignition switch "OFF". 2. Disconnect 4WD shift switch harness connector. 3. Operate 4WD shift switch and check continuity between 4WD
shift switch harness connector terminals.
Connector
Terminal
Condition
1 - 3
4WD shift switch: 2WD 4WD shift switch: 4H and 4LO
M141
1 - 5
4WD shift switch: 4H 4WD shift switch: 2WD and 4LO
1 - 6
4WD shift switch: 4LO 4WD shift switch: 2WD and 4H
4. If NG, replace the 4WD shift switch.
Continuity Yes No Yes No Yes No
PDIA0212E
Revision: April 2004
TF-48
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
Wait Detection Switch
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item
Content
Condition
WAIT DETCT SW [ON/ OFF]
Condition of wait detection switch
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4H and 4LO
4WD shift switch: 2WD
UDS000A9
A
Display value
ON
B
OFF
C
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
q Vehicle stopped 4WD shift switch: 4H and 4LO
17
G/Y Wait detection switch
q Engine running
q A/T selector lever "N" position
q Brake pedal depressed
4WD shift switch: 2WD
TF
Data (Approx.)
0V
E
Battery voltage F
CAUTION:
G
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
H
I
J
K
L
M
Revision: April 2004
TF-49
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK WAIT DETECTION SWITCH SIGNAL
With CONSULT-II 1. Start engine. 2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Read out the value of "WAIT DETCT SWITCH".
Condition
q Vehicle stopped q Engine running q A/T selector lever "N" position q Brake pedal depressed
4WD shift switch: 4H and 4LO 4WD shift switch: 2WD
Display value ON
OFF
PDIA0221E
Without CONSULT-II
1. Start engine.
2. Check voltage between transfer control unit harness connector terminal and ground.
Terminal Connector (Wire
color)
Condition
Voltage (Approx.)
E142
17 (G/Y) - Ground
q Vehicle stopped
q Engine running
q A/T selector lever "N" position
q Brake pedal depressed
4WD shift switch : 4H and 4LO
4WD shift switch: 2WD
0V
Battery voltage
PDIA0205E
OK or NG
OK >> GO TO 5. NG >> GO TO 2.
2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND WAIT DETECTION SWITCH
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector and the wait detection switch harness connector. 3. Check continuity between transfer control unit harness connec-
tor E142 terminal 17 (G/Y) and wait detection switch harness connector F59 terminal 10 (G/Y).
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair or replace damaged parts.
PDIA0206E
Revision: April 2004
TF-50
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
3. CHECK GROUND CIRCUIT A
1. Turn ignition switch "OFF".
2. Disconnect wait detection switch harness connector.
3. Check continuity between wait detection switch harness con-
B
nector F59 terminal 11 (B) and ground.
Continuity should exist. C
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
TF
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK WAIT DETECTION SWITCH
1. Turn ignition switch "OFF". 2. Disconnect wait detection switch harness connector. 3. Remove wait detection switch. 4. Push and release wait detection switch and check continuity
between wait detection switch harness connector F59 terminals 10 and 11.
E
PDIA0207E
F G H
Connector
Terminal
Condition
Continuity
Push wait detection switch
Yes
F59
10 - 11
I
Release wait detection switch
No
OK or NG OK >> GO TO 5. NG >> Replace wait detection switch.
5. CHECK TRANSFER CONTROL UNIT
J
PDIA0208E
K
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Ref-
erence Values" .
OK or NG
L
OK >> GO TO 6.
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
M
6. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while. OK or NG
OK >> INSPECTION END NG >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" .
COMPONENT INSPECTION 1. Turn ignition switch "OFF". 2. Disconnect wait detection switch harness connector. 3. Remove wait detection switch.
Revision: April 2004
TF-51
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
4. Push and release wait detection switch and check continuity between wait detection switch harness connector F59 terminals 10 and 11.
Connector
Terminal
Condition
Push wait detection switch
F59
10 - 11
Release wait detection switch
5. If NG, replace the wait detection switch.
Continuity Yes No
PNP Switch Signal
DIAGNOSTIC PROCEDURE
1. CHECK DTC WITH TCM
PDIA0208E UDS000A7
Perform self-diagnosis with TCM. Refer to AT-97, "CONSULT-II SETTING PROCEDURE" . Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. NO >> GO TO 2.
2. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 3. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
3. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG OK >> INSPECTION END NG >> Perform self-diagnosis with TCM again. Refer to AT-97, "CONSULT-II SETTING PROCEDURE" .
Revision: April 2004
TF-52
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
Actuator Motor
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item
Content
Condition
SHIFT ACT 1 [ON/OFF]
Output condition to actuator motor (clockwise)
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4H to 4LO
Except the above
SHIFT AC MON1 [ON/ OFF]
Check signal (reinput signal) for transfer control unit signal output
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4H to 4LO
Except the above
SHIFT ACT 2 [ON/OFF]
Output condition to actuator motor (counterclockwise)
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4LO to 4H
Except the above
SHIFT AC MON2 [ON/ OFF]
Check signal (reinput signal) for transfer control unit signal output
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
4WD shift switch : 4LO to 4H
Except the above
UDS000AB
A
Display value
ON
B
OFF
C
ON
TF
OFF
E
ON
F
OFF
G
ON
OFF
H
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
Ignition switch: ON
27
Y/R Actuator motor power supply
Ignition switch: OFF
I
Data (Approx.)
Battery voltage J
0V
28
Y/L Actuator motor (+)
4WD shift switch: 2WD to 4H or 4H to 4LO or 2WD to 4LO Except the above
Battery voltage
K
0V
31
G/B Actuator motor (-)
4WD shift switch: 4LO to 4H or 4H to 2WD or 4LO to 2WD Except the above
Battery voltage
0V
L
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
M
Revision: April 2004
TF-53
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK ACTUATOR MOTOR SIGNAL
With CONSULT-II 1. Start engine. 2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Read out the value of "SHIFT ACT 1", "SHIFT ACT MON 1",
"SHIFT ACT 2", "SHIFT ACT MON 2".
Monitored item
SHIFT ACT 1
SHIFT AC MON1 SHIFT ACT 2
q Vehicle stopped
q Engine running
q A/T selector lever "N" position
q Brake pedal depressed
SHIFT AC MON2
Condition
4WD shift switch : 4H to 4LO
Except the above
4WD shift switch : 4H to 4LO
Except the above
4WD shift switch : 4LO to 4H
Except the above
4WD shift switch : 4LO to 4H
Except the above
Display value ON OFF ON OFF ON OFF ON OFF
Without CONSULT-II
1. Start engine.
2. Check voltage between transfer control unit harness connector terminal and ground.
Terminal Connector (Wire
color)
Condition
E143
28 (Y/L) - Ground
4WD shift switch: 2WD to 4H or 4H to 4LO or 2WD to 4LO
Except the above
31 (G/B) - Ground
4WD shift switch: 4LO to 4H or 4H to 2WD or 4LO to 2WD
Except the above
OK or NG
OK >> GO TO 5. NG >> GO TO 2.
Voltage (Approx.)
Battery voltage
0V Battery voltage
0V
PDIA0223E PDIA0213E
Revision: April 2004
TF-54
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
2. CHECK ACTUATOR MOTOR POWER SUPPLY CIRCUIT A
1. Turn ignition switch "ON". (Do not start engine.)
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector
B
terminal 27 and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
C
E143
27 (Y/R) - Ground
Battery voltage
TF
E
SDIA2388E
4. Turn ignition switch "OFF".
5. Check voltage between transfer control unit harness connector
F
terminal 27 and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
G
E143
27 (Y/R) - Ground
0V
OK or NG
OK >> GO TO 3. NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
q 10A fuse [No. 26 or 59, located in the IPDM E/R]
H
SDIA2387E
I
q Harness for short or open between battery and transfer control unit harness connector terminal 27
q Harness for short or open between ignition switch and transfer relay 1 harness connector E46 J terminal 2 (L/W)
q Harness for short or open between transfer relay 1 harness connector E46 terminal 1 (B) and
ground.
K
q Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
q Transfer relay 1. Refer to TF-40, "COMPONENT INSPECTION" .
3. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ACTUATOR MOTOR
L
1. Turn ignition switch "OFF". M
2. Disconnect transfer control unit harness connector and the transfer control device (actuator motor) harness connector.
3. Check continuity between the following terminals.
Transfer control unit harness connector E143 terminal 28 (Y/L) and transfer control device (actuator motor) harness connector F58 terminal 24 (Y/L).
Transfer control unit harness connector E143 terminal 31 (G/B) and transfer control device (actuator motor) harness connector F58 terminal 23 (G/B).
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 4. NG >> Repair or replace damaged parts.
PDIA0214E
Revision: April 2004
TF-55
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
4. CHECK ACTUATOR MOTOR
1. Remove transfer control device. Refer to TF-79, "TRANSFER CONTROL UNIT" .
2. Check operation by applying battery voltage to transfer control device (actuator motor) harness connector F58 terminals 23 and 24.
CAUTION: Be careful not to cause burnout of the harness.
Connector
Terminal
Actuator motor
24 (Battery voltage) - 23 (Ground)
Clockwise rotate
F58
23 (Battery voltage) - 24 (Ground)
Counterclockwise rotate
Does actuator motor rotate?
SDIA2386E
YES >> GO TO 5.
NO >> Replace transfer control device (actuator motor). Refer to TF-84, "Removal and Installation" .
5. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 6. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END NG >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" .
COMPONENT INSPECTION 1. Remove transfer control device. Refer to TF-84, "Removal and Installation" .
2. Check operation by applying battery voltage to transfer control device (actuator motor) harness connector F58 terminals 23 and 24.
CAUTION: Be careful not to cause burnout of the harness.
Connector
Terminal
Actuator motor
24 (Battery voltage) - 23 (Ground)
Clockwise rotate
F58
23 (Battery voltage) - 24 (Ground)
Counterclockwise rotate
3. If NG, replace transfer control device (actuator motor). Refer to TF-84, "Removal and Installation" .
SDIA2386E
Revision: April 2004
TF-56
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
Actuator Position Switch
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item [Unit]
Content
Condition
UDS000AC
A
Display value
SHIFT POS SW1 [ON/ OFF]
Condition of actuator posi- 4WD shift switch: 2WD and 4LO
tion switch 1
4WD shift switch: 4H
ON
B
OFF
SHIFT POS SW2 [ON/ OFF]
Condition of actuator posi- 4WD shift switch: 4LO
tion switch 2
4WD shift switch: 2WD and 4H
ON
C
OFF
SHIFT POS SW3 [ON/ OFF]
SHIFT POS SW4 [ON/ OFF]
Condition of actuator posi- 4WD shift switch: 2WD and 4H
tion switch 3
4WD shift switch: 4LO
Condition of actuator posi- 4WD shift switch: 4H and 4LO
tion switch 4
4WD shift switch: 2WD
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
ON
OFF
TF
ON
OFF
E
Data (Approx.) F
4WD shift switch: 2WD and 4LO
10
LG/B Actuator position switch 1
4WD shift switch: 4H
4WD shift switch: 4LO
11
W/L Actuator position switch 2
4WD shift switch: 2WD and 4H
4WD shift switch: 2WD and 4H
12
BR Actuator position switch 3
4WD shift switch: 4LO
0V
Battery voltage G
0V
Battery voltage
0V
H
Battery voltage
13
BR/W Actuator position switch 4
4WD shift switch: 4H and 4LO 4WD shift switch: 2WD
0V
I
Battery voltage
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
J
K
L
M
Revision: April 2004
TF-57
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK ACTUATOR POSITION SWITCH SIGNAL
With CONSULT-II 1. Start engine. 2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Read out the value of "SHIFT POS SW1", "SHIFT POS SW2",
"SHIFT POS SW3", "SHIFT POS SW4".
Monitored item
Condition
Display value
4WD shift switch: 2WD and 4LO SHIFT POS SW1
4WD shift switch: 4H
ON OFF
4WD shift switch: 4LO SHIFT POS SW2
4WD shift switch: 2WD and 4H
ON OFF
4WD shift switch: 2WD and 4H SHIFT POS SW3
4WD shift switch: 4LO
ON OFF
4WD shift switch: 4H and 4LO SHIFT POS SW4
4WD shift switch: 2WD
ON OFF
Without CONSULT-II
1. Start engine. 2. Check voltage between transfer control unit harness connector
terminal and ground.
Connector
Terminal (Wire color)
Condition
4WD shift switch: 2WD and 4LO 10 (LG/B)
- Ground 4WD shift switch: 4H
E142
4WD shift switch: 4LO 11 (W/L) - Ground 4WD shift switch: 2WD and 4H
4WD shift switch: 2WD and 4H 12 (BR) Ground 4WD shift switch: 4LO
13 (BR/ W) -
Ground
4WD shift switch: 4H and 4LO 4WD shift switch: 2WD
OK or NG
OK >> GO TO 4. NG >> GO TO 2.
Voltage (Approx.)
0V Battery voltage
0V Battery voltage
0V Battery voltage
0V Battery voltage
PDIA0224E PDIA0216E
Revision: April 2004
TF-58
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ACTUATOR POSITION SWITCH A
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector and the transfer control device (actuator position
switch) harness connector.
B
3. Check continuity between the following terminals.
Transfer control unit harness connector E142 terminal 10 (LG/B)
and transfer control device (actuator position switch) harness
C
connector F58 terminal 26 (LG/B).
Transfer control unit harness connector E142 terminal 11 (W/L)
and transfer control device (actuator position switch) harness
TF
connector F58 terminal 20 (W/L).
Transfer control unit harness connector E142 terminal 12 (BR)
and transfer control device (actuator position switch) harness
E
connector F58 terminal 21 (BR).
Transfer control unit harness connector E142 terminal 13 (BR/
PDIA0217E
W) and transfer control device (actuator position switch) harness connector F58 terminal 25 (BR/W).
F
Continuity should exist.
Also check harness for short to ground and short to power.
OK or NG
G
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK GROUND CIRCUIT
H
1. Turn ignition switch "OFF".
I
2. Disconnect transfer control device (actuator position switch) harness connector.
3. Check continuity between transfer control device (actuator posi-
tion switch) harness connector F58 terminal 22 (B) and ground.
J
Continuity should exist.
Also check harness for short to ground and short to power.
OK or NG
K
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
L
4. CHECK TRANSFER CONTROL UNIT
PDIA0219E
M
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 5. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
5. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END NG >> Replace transfer control device. Refer to TF-84, "Removal and Installation" .
Revision: April 2004
TF-59
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
Transfer Control Device
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item [Unit]
Content
Condition
SHIFT ACT/R MON [ON/OFF]
Operating condition of actuator motor relay (integrated in transfer control unit)
q Vehicle stopped q Engine running q A/T selector lever "N"
position q Brake pedal depressed
When 4WD shift switch is operated
When 4WD shift switch is not operated
UDS000AD
Display value ON OFF
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
Data (Approx.)
25
L/W Ignition switch monitor
Ignition switch: ON Ignition switch: OFF
Battery voltage 0V
Ignition switch: ON
27
Y/R Actuator motor power supply
Ignition switch: OFF
Battery voltage 0V
32
B Actuator motor ground
Always
0V
40
Y Transfer relay 2
Ignition switch: ON Ignition switch: OFF
0V Battery voltage
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Revision: April 2004
TF-60
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY
A
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector.
B
3. Check voltage between transfer control unit harness connector
terminal and ground.
C
Connector
Terminal (Wire color)
Voltage (Approx.)
E142
25 (L/W) - Ground
0V
E143
27 (Y/R) - Ground
TF
E
SDIA2417E
4. Turn ignition switch "ON". (Do not start engine.)
F
5. Check voltage between transfer control unit harness connector
terminals and ground.
G
Connector
Terminal (Wire color)
Voltage (Approx.)
E142
25 (L/W) - Ground
E143
27 (Y/R) - Ground
Battery voltage
H
OK or NG
OK >> GO TO 2. NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
I
SDIA2418E
q 10A fuse [No. 26 or 59, located in the IPDM E/R] q Harness for short or open between battery and transfer control unit harness connector terminal J
27
q Harness for short or open between ignition switch and transfer relay 1 harness connector E46
terminal 2 (L/W)
K
q Harness for short or open between ignition switch and transfer control unit harness connector
terminal 25 q Harness for short or open between transfer relay 1 harness connector E46 terminal 1 (B) and L
ground
q Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
q Transfer relay 1. Refer to TF-40, "COMPONENT INSPECTION" .
M
2. CHECK GROUND CIRCUIT
1. Disconnect transfer control unit harness connector. 2. Check continuity between transfer control unit harness connec-
tor E143 terminal 32 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
SDIA2389E
Revision: April 2004
TF-61
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
3. CHECK POWER SUPPLY SIGNAL
1. Turn ignition switch "OFF".
2. Connect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector terminal and ground.
Connector E143
Terminal (Wire color) 40 (Y) - Ground
Voltage (Approx.) Battery voltage
SDIA2415E
4. Turn ignition switch "ON". (Do not start engine.)
5. Check voltage between transfer control unit harness connector terminal and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
E143
40 (Y) - Ground
0V
OK or NG
OK >> GO TO 4. NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
q Harness for short or open between battery and transfer control unit harness connector terminal 40
q Transfer relay 2. Refer to TF-40, "COMPONENT INSPECTION" .
4. CHECK TRANSFER CONTROL UNIT
SDIA2416E
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK-1 OK-2 NG
>> With CONSULT-II: GO TO 5. >> Without CONSULT-II: GO TO 6. >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
5. PERFORM SELF-DIAGNOSIS (WITH CONSULT-II)
With CONSULT-II 1. Turn ignition switch "ON". (Do not start engine.) 2. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Touch "ERASE". 4. Turn ignition switch "OFF" and wait at least 10 seconds. 5. Perform the self-diagnosis again. Is the "SHIFT ACT CIR [P1819]" displayed?
YES >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" . NO >> INSPECTION END
Revision: April 2004
TF-62
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
6. PERFORM SELF-DIAGNOSIS (WITHOUT CONSULT-II) A
Without CONSULT-II
1. Perform the self-diagnosis and then erase self-diagnostic results. Refer to TF-36, "SELF-DIAGNOSTIC
PROCEDURE (WITHOUT CONSULT-II)" and TF-37, "ERASE SELF-DIAGNOSIS" .
B
2. Perform the self-diagnosis again.
Do the self-diagnostic results indicate transfer control device?
YES >> Replace transfer control unit. Refer to TF-79, "TRANSFER CONTROL UNIT" .
C
NO >> INSPECTION END
Engine Speed Signal
DIAGNOSTIC PROCEDURE
1. CHECK DTC WITH ECM
Perform self-diagnosis with ECM. Refer to EC-106, "SELF-DIAG RESULTS MODE" . Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. NO >> GO TO 2.
TF UDS000A6 E F
2. CHECK TRANSFER CONTROL UNIT
G
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
H
OK >> GO TO 3.
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
I
3. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
J
OK or NG
OK >> INSPECTION END NG >> Perform self-diagnosis with ECM again. Refer to EC-106, "SELF-DIAG RESULTS MODE" .
K
L
M
Revision: April 2004
TF-63
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
CAN Communication Line
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II 1. Turn ignition switch "ON" and start engine. 2. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with in CONSULT-II. 3. Perform the self-diagnosis. Is the "CAN COMM CIRCUIT [U1000]" displayed?
YES >> Print out CONSULT-II screen and go to LAN-6, "Precautions When Using CONSULT-II" .
NO >> INSPECTION END
UDS0009M
ATP Switch
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item [Unit]
Content
Condition
ATP SWITCH [ON/OFF] Condition of ATP switch
q Vehicle stopped q Engine running q A/T selector lever "P"
position q Brake pedal depressed
4WD shift switch : 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Except the above
SDIA2390E UDS000CB
Display value ON OFF
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire color
Item
Condition
Data (Approx.)
23
R/B ATP switch
q Vehicle stopped
q Engine running
q A/T selector lever "P" position
q Brake pedal depressed
4WD shift switch: 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Except the above
0V Battery voltage
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Revision: April 2004
TF-64
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1. CHECK ATP SWITCH SIGNAL
With CONSULT-II 1. Start engine. 2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. 3. Read out the value of "ATP SWITCH".
q Vehicle stopped
q Engine running
q A/T selector lever "P" position
q Brake pedal depressed
Condition 4WD shift switch: 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Except the above
Display value ON
OFF
Without CONSULT-II
1. Start engine.
2. Check voltage between transfer control unit harness connector terminal and ground.
Terminal Connector (Wire
color)
Condition
Voltage (Approx.)
E142
23 (R/B) - Ground
q Vehicle stopped
q Engine running
q A/T selector lever "P" position
q Brake pedal depressed
4WD shift switch: 4H to 4LO or 4LO to 4H (While actuator motor is operating.)
Except the above
0V
Battery voltage
OK or NG
OK >> GO TO 5. NG >> GO TO 2.
2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ATP SWITCH
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector and the ATP switch harness connector. 3. Check continuity between transfer control unit harness connec-
tor E142 terminal 23 (R/B) and ATP switch harness connector F55 terminal 8 (R/B).
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair or replace damaged parts.
A
B
C
TF
E
SDIA2391E
F
G
H
I
J
SDIA2392E
K
L
M
SDIA2393E
Revision: April 2004
TF-65
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
3. CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF". 2. Disconnect ATP switch harness connector. 3. Check continuity between ATP switch harness connector F55
terminal 9 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 4. NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK ATP SWITCH
SDIA2394E
1. Turn ignition switch "OFF". 2. Disconnect ATP switch harness connector. 3. Remove ATP switch. 4. Push and release ATP switch and check continuity between ATP
switch harness connector F55 terminals 8 and 9.
Connector
Terminal
Condition
Push ATP switch
F55
8 - 9
Release ATP switch
OK or NG
OK >> GO TO 5. NG >> Replace ATP switch.
5. CHECK TRANSFER CONTROL UNIT
Continuity Yes No
SDIA2395E
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 6. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6. CHECK ATP WARNING LAMP
1. Turn ignition switch "ON". (Do not start engine.) 2. Set the selector lever to "P" position and engage the parking brake. 3. Switch 4WD shift switch from 4H to 4LO or 4LO to 4H. Does ATP warning lamp "ON", while actuator motor is operating?
YES >> INSPECTION END NO >> Go to TF-74, "ATP Warning Lamp Does Not Turn ON" .
COMPONENT INSPECTION 1. Turn ignition switch "OFF". 2. Disconnect ATP switch harness connector. 3. Remove ATP switch.
Revision: April 2004
TF-66
2004 Titan
TROUBLE DIAGNOSIS FOR SYSTEM
4. Push and release ATP switch and check continuity between ATP switch harness connector F55 terminals 8 and 9.
Connector
Terminal
Condition
Push ATP switch
F55
8 - 9
Release ATP switch
5. If NG, replace the ATP switch.
Continuity Yes No
A
B
C
SDIA2395E
TF
E
F
G
H
I
J
K
L
M
Revision: April 2004
TF-67
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
TROUBLE DIAGNOSIS FOR SYMPTOMS
PFP:00007
4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON
SYMPTOM:
UDS000CC
4WD shift indicator lamp and 4LO indicator lamp do not turn ON for approx. 1 second when turning ignition switch to "ON".
DIAGNOSTIC PROCEDURE
1. CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector terminals and ground.
Connector E142
E143
Terminal (Wire color) 19 (W) - Ground 25 (L/W) - Ground 40 (Y) - Ground 44 (Y/R) - Ground 45 (Y/R) - Ground
Voltage (Approx.) Battery voltage 0V Battery voltage 0V 0V
SDIA2420E
4. Turn ignition switch "ON". (Do not start engine.)
5. Check voltage between transfer control unit harness connector terminals and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
E142
19 (W) - Ground 25 (L/W) - Ground
40 (Y) - Ground
Battery voltage
E143
44 (Y/R) - Ground
45 (Y/R) - Ground
SDIA2421E
OK or NG
OK >> GO TO 2. NG >> Check the following. If any items are damaged, repair or replace damaged parts.
q 10A fuse [No. 26 or 59, located in the IPDM E/R]
q 20A fuse [No. 53, located in the IPDM E/R]
q Harness for short or open between battery and transfer control unit harness connector terminals 19, 40, 44 and 45
q Harness for short or open between ignition switch and transfer control unit harness connector terminal 25
q Harness for short or open between ignition switch and transfer relay 1 harness connector E46 terminal 2 (L/W)
q Harness for short or open between transfer relay 1 harness connector E46 terminal 1 (B) and ground
q Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
q Transfer relay 1, 2. Refer to TF-40, "COMPONENT INSPECTION" .
Revision: April 2004
TF-68
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
2. CHECK TRANSFER CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector. 3. Check continuity between transfer control unit harness connec-
tor E142 terminals 6 (B), 18 (B), E143 terminal 32 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK COMBINATION METER POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector.
3. Check voltage between combination meter harness connector terminals and ground.
Connector M24
Terminal (Wire color) 24 (O/L) - Ground
Voltage (Approx.) 0V
A B C TF E
PDIA0199E
F G H I
PDIA0228E
J
4. Turn ignition switch "ON". (Do not start engine.)
5. Check voltage between combination meter harness connector
K
terminals and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
L
M24
24 (O/L) - Ground
Battery voltage
OK or NG
OK >> GO TO 4. NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
q 10A fuse [No. 26 or 59, located in the IPDM E/R]
M
SDIA2396E
q Harness for short or open between battery and combination meter harness connector terminal 24
q Battery and Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
q Transfer relay 1, 2. Refer to TF-40, "COMPONENT INSPECTION" .
Revision: April 2004
TF-69
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
4. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector and combination meter harness connector. 3. Check continuity between the following terminals. Transfer control unit harness connector E143 terminal 35 (B/W)
and combination meter harness connector M24 terminal 32 (B/ W) Transfer control unit harness connector E143 terminal 36 (L) and combination meter harness connector M24 terminal 31 (L) Transfer control unit harness connector E143 terminal 37 (W/G) and combination meter harness connector M24 terminal 33 (W/ G)
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 5. NG >> Repair or replace damaged parts.
5. CHECK 4WD SHIFT INDICATOR LAMP AND 4LO INDICATOR LAMP CIRCUIT
PDIA0229E
1. Turn ignition switch "OFF". 2. Check the combination meter. Refer to DI-5, "COMBINATION METERS" . OK or NG
OK >> GO TO 6. NG >> Replace the combination meter. Refer to DI-25, "Removal and Installation of Combination Meter" .
6. SYMPTOM CHECK
Check again. OK or NG
OK >> INSPECTION END NG >> GO TO 7.
7. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> INSPECTION END NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
4WD Warning Lamp Does Not Turn ON
SYMPTOM:
4WD warning lamp do not turn ON when turning ignition switch to "ON".
UDS0009O
Revision: April 2004
TF-70
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1. CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT
A
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector terminals and ground.
Connector E142
E143
Terminal (Wire color) 19 (W) - Ground 25 (L/W) - Ground 40 (Y) - Ground 44 (Y/R) - Ground 45 (Y/R) - Ground
Voltage (Approx.) Battery voltage 0V Battery voltage 0V 0V
B C TF E
SDIA2420E
4. Turn ignition switch "ON". (Do not start engine.)
F
5. Check voltage between transfer control unit harness connector
terminals and ground.
G
Connector
Terminal (Wire color)
Voltage (Approx.)
19 (W) - Ground
E142
25 (L/W) - Ground
H
40 (Y) - Ground
Battery voltage
E143
44 (Y/R) - Ground 45 (Y/R) - Ground
I
SDIA2421E
OK or NG
OK >> GO TO 2.
J
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
q 10A fuse [No. 26 or 59, located in the IPDM E/R]
q 20A fuse [No. 53, located in the IPDM E/R]
K
q Harness for short or open between battery and transfer control unit harness connector terminals 19, 40, 44 and 45
q Harness for short or open between ignition switch and transfer control unit harness connector L terminal 25
q Harness for short or open between ignition switch and transfer relay 1 harness connector E46
terminal 2 (L/W)
M
q Harness for short or open between transfer relay 1 harness connector E46 terminal 1 (B) and ground
q Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" . q Transfer relay 1, 2. Refer to TF-40, "COMPONENT INSPECTION" .
Revision: April 2004
TF-71
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
2. CHECK TRANSFER CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch "OFF". 2. Disconnect transfer control unit harness connector. 3. Check continuity between transfer control unit harness connec-
tor E142 terminals 6 (B), 18 (B), E143 terminal 32 (B) and ground.
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK COMBINATION METER POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector.
3. Check voltage between combination meter harness connector terminals and ground.
Connector M24
Terminal (Wire color) 24 (O/L) - Ground
Voltage (Approx.) 0V
PDIA0199E
PDIA0228E
4. Turn ignition switch "ON". (Do not start engine.)
5. Check voltage between combination meter harness connector terminals and ground.
Connector
Terminal (Wire color)
Voltage (Approx.)
M24
24 (O/L) - Ground
Battery voltage
OK or NG
OK >> GO TO 4. NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
q 10A fuse [No. 26 or 59, located in the IPDM E/R]
SDIA2396E
q Harness for short or open between battery and combination meter harness connector terminal 24
q Battery and Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
q Transfer relay 1, 2. Refer to TF-40, "COMPONENT INSPECTION" .
Revision: April 2004
TF-72
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
4. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER A
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector and combination meter harness connector.
3. Check continuity between transfer control unit harness connec-
B
tor E143 terminal 38 (W/B) and combination meter harness con-
nector M24 terminal 34 (W/B).
Continuity should exist.
C
Also check harness for short to ground and short to power.
OK or NG
TF
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
E
PDIA0230E
5. CHECK 4WD WARNING LAMP CIRCUIT
F 1. Turn ignition switch "OFF".
2. Check the combination meter. Refer to DI-5, "COMBINATION METERS" .
OK or NG
G
OK >> GO TO 6.
NG >> Replace the combination meter. Refer to DI-25, "Removal and Installation of Combination Meter" .
6. SYMPTOM CHECK
H
Check again.
OK or NG
I
OK >> INSPECTION END
NG >> GO TO 7. J
7. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
K
OK or NG
OK >> INSPECTION END
L
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
4WD Shift Indicator Lamp or 4LO Indicator Lamp Do Not Change
SYMPTOM:
4WD shift indicator lamp or 4LO indicator lamp do not change when switch 4WD shift switch.
UDS000CD
M
DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
Confirm 4WD shift indicator lamp and 4LO indicator lamp when ignition switch is turned to ON. Do 4WD shift indicator lamp and 4LO indicator lamp turn on?
YES >> GO TO 2. NO >> Go to TF-68, "4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON" .
2. CHECK SYSTEM FOR 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD shift switch system. Refer to TF-45, "4WD Shift Switch" .
OK or NG
OK >> GO TO 3. NG >> Repair or replace damaged parts.
Revision: April 2004
TF-73
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
3. CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer to TF-49, "Wait Detection Switch" . OK or NG
OK >> GO TO 4. NG >> Repair or replace damaged parts.
4. CHECK SYSTEM FOR 4LO SWITCH
Perform trouble diagnosis for 4LO switch system. Refer to TF-42, "4LO Switch" . OK or NG
OK >> GO TO 5. NG >> Repair or replace damaged parts.
5. CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer to TF-64, "ATP Switch" . OK or NG
OK >> GO TO 6. NG >> Repair or replace damaged parts.
6. SYMPTOM CHECK
Check again. OK or NG
OK >> INSPECTION END NG >> GO TO 7.
7. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 8. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
8. CHECK TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer to TF-88, "Disassembly and Assembly" . 2. Check transfer inner parts. OK or NG
OK >> INSPECTION END NG >> Repair or replace damaged parts.
ATP Warning Lamp Does Not Turn ON
SYMPTOM:
UDS0009P
ATP warning lamp does not turn ON when 4WD shift switch from "4H" to "4LO" or "4LO" to "4H" with A/T selector lever "P" position.
DIAGNOSTIC PROCEDURE
1. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-36, "Self-Diagnostic Procedure" .
Do the self-diagnostic results indicate CAN communication?
YES >> Perform trouble diagnosis for CAN communication line. Refer to LAN-8, "CAN COMMUNICATION" .
NO >> GO TO 2.
Revision: April 2004
TF-74
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
2. CHECK SYSTEM FOR 4WD SHIFT SWITCH A
Perform trouble diagnosis for 4WD shift switch system. Refer to TF-45, "4WD Shift Switch" .
OK or NG
OK >> GO TO 3.
B
NG >> Repair or replace damaged parts.
3. CHECK SYSTEM FOR PNP SWITCH SIGNAL
C
Perform trouble diagnosis for PNP switch signal system. Refer to TF-52, "PNP Switch Signal" .
OK or NG
TF
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SYSTEM FOR ATP SWITCH
E
Perform trouble diagnosis for ATP switch system. Refer to TF-64, "ATP Switch" .
OK or NG
F
OK >> GO TO 5. NG >> Repair or replace damaged parts.
5. CHECK ATP WARNING LAMP CIRCUIT
G
1. Turn ignition switch "ON".
2. Disconnect ATP switch harness connector.
H
3. Check voltage between ATP switch harness connector terminal and ground. I
Connector
Terminal (Wire color)
Condition
Voltage (Approx.)
A/T selector lever "P" Battery
J
F55
8 (R/B) Ground
Ignition switch position : ON
voltage
Except the above
0V
OK or NG
K
OK >> GO TO 9. NG >> GO TO 6.
SDIA2397E
6. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
L
1. Turn ignition switch "OFF".
2. Disconnect transfer control unit harness connector and combination meter harness connector.
M
3. Check continuity between transfer control unit harness connector E143 terminal 39 (L/B) and combination meter harness connector M24 terminal 6 (L/B).
Continuity should exist.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7. NG >> Repair or replace damaged parts.
PDIA0301E
Revision: April 2004
TF-75
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
7. CHECK HARNESS BETWEEN COMBINATION METER AND ATP SWITCH
1. Turn ignition switch "OFF". 2. Disconnect combination meter harness connector and ATP switch harness connector. 3. Check continuity between combination meter harness connector
M24 terminal 7 (R/B) and ATP switch harness connector F55 terminal 8 (R/B).
Continuity should exist.
Also check harness for short to ground and short to power. OK or NG
OK >> GO TO 8. NG >> Repair or replace damaged parts.
8. CHECK ATP WARNING LAMP CIRCUIT
SDIA2398E
1. Turn ignition switch "OFF". 2. Check the combination meter. Refer to DI-5, "COMBINATION METERS" . OK or NG
OK >> GO TO 9. NG >> Replace the combination meter. Refer to DI-25, "Removal and Installation of Combination Meter" .
9. SYMPTOM CHECK
Check again. OK or NG
OK >> INSPECTION END NG >> GO TO 10.
10. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 11. NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
11. CHECK TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer to TF-88, "Disassembly and Assembly" . 2. Check transfer inner parts. OK or NG
OK >> INSPECTION END NG >> Repair or replace damaged parts.
4WD Shift Indicator Lamp Repeats Flashing
SYMPTOM: 4WD shift indicator lamp keeps flashing.
UDS000CE
Revision: April 2004
TF-76
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
A
1. Set 4WD shift switch to "2WD". 2. Move vehicle forward and backward, or drive straight increasing or decreasing under 20 km/h (12 MPH). B
Dose 4WD shift indicator lamp keep flashing?
YES >> GO TO 2.
NO >> INSPECTION END
C
2. CHECK SYSTEM FOR WAIT DETECTION SWITCH
TF Perform trouble diagnosis for wait detection switch system. Refer to TF-49, "Wait Detection Switch" .
OK or NG
OK >> GO TO 3.
E
NG >> Repair or replace damaged parts.
3. CHECK SYSTEM FOR 4LO SWITCH F
Perform trouble diagnosis for 4LO switch system. Refer to TF-42, "4LO Switch" .
OK or NG
OK >> GO TO 4.
G
NG >> Repair or replace damaged parts.
4. SYMPTOM CHECK
H
Check again.
OK or NG
I
OK >> INSPECTION END
NG >> GO TO 5.
5. CHECK TRANSFER CONTROL UNIT
J
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Ref-
erence Values" .
K
OK or NG
OK >> GO TO 6.
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector. L If any items are damaged, repair or replace damaged parts.
6. CHECK TRANSFER INNER PARTS M 1. Disassemble transfer assembly. Refer to TF-88, "Disassembly and Assembly" . 2. Check transfer inner parts. OK or NG
OK >> INSPECTION END NG >> Repair or replace damaged parts.
4WD Warning Lamp Flashes Slowly
SYMPTOM:
UDS000CF
While driving, 4WD warning lamp flashes slowly. (When continuing to flash until turning ignition switch OFF.)
NOTE: Slow flashing: 1 time/2 seconds
Revision: April 2004
TF-77
2004 Titan
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1. CHECK TIRE
Check the following. q Tire pressure q Wear condition q Longitudinal tire size (There is no difference between longitudinal tires.) OK or NG
OK >> GO TO 2. NG >> Repair or replace damaged parts.
2. SYMPTOM CHECK
Check again. OK or NG
OK >> INSPECTION END NG >> GO TO 3.
3. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-27, "Transfer Control Unit Input/Output Signal Reference Values" . OK or NG
OK >> INSPECTION END NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
Revision: April 2004
TF-78
2004 Titan
TRANSFER CONTROL UNIT
TRANSFER CONTROL UNIT Removal and Installation
REMOVAL 1. Switch 4WD shift switch to 2WD and set transfer assembly to 2WD. 2. Remove the glove box assembly. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" . 3. Disconnect transfer control unit connectors. 4. Remove the transfer control unit.
PFP:33084
A
UDS0009T
B
C
TF
E
INSTALLATION Note the following, and install in the reverse order of removal. q When installing the transfer control unit, tighten bolts to the specified torque.
Transfer control unit bolts : 5.1 N·m (0.52 kg-m, 45 in-lb)
BDIA0014E
F
G
H
q After the installation, check 4WD shift indicator pattern. If NG, adjust position between transfer assembly and transfer control unit. Refer to TF-4, "Precautions for Transfer Assembly and Transfer Control Unit I Replacement" .
J
K
L
M
Revision: April 2004
TF-79
2004 Titan
FRONT OIL SEAL FRONT OIL SEAL Removal and Installation
REMOVAL 1. Partially drain transfer fluid. Refer to MA-24, "Changing Transfer Fluid" . 2. Remove front propeller shaft. Refer to PR-4, "Removal and Installation" . 3. Remove companion frange self-lock nut, using flange wrench.
Tool number : KV40104000 ( -- )
4. Put a matchmark on top of front drive shaft thread. The mark should be in line with the mark on the companion flange. CAUTION: Always mark top of front drive shaft screw using paint.
5. Remove companion flange, using suitable tool.
PFP:38189
UDS0009U
LDIA0142E
SDIA2214E
6. Remove front oil seal from front case, using puller. Tool number : ST33290001 (J34286)
CAUTION: Be careful not to damage the front case.
Revision: April 2004
TF-80
LDIA0143E LDIA0144E
2004 Titan
FRONT OIL SEAL
INSTALLATION 1. Install front oil seal until it is flush with end face of front case,
using drift. Tool number : KV38100500 ( -- )
CAUTION: q Do not reuse oil seal. q Apply petroleum jelly to oil seal.
2. Install companion flange while align the matchmark of front drive shaft with the mark of companion flange.
3. Tighten self-lock nut to the specified torque, with flange wrench. Refer to TF-88, "COMPONENTS" . Tool number : KV40104000 ( -- ) CAUTION: Do not reuse self-lock nut.
4. Install front propeller shaft. Refer to PR-4, "Removal and Installation" .
5. Refill transfer fluid, check fluid level and for fluid leakage. Refer to MA-24, "Changing Transfer Fluid" .
A
B
C
LDIA0145E
TF
E
F
G
SDIA2214E
H
I
J
K
LDIA0147E
L
M
Revision: April 2004
TF-81
2004 Titan
REAR OIL SEAL
REAR OIL SEAL Removal and Installation
REMOVAL 1. Partially drain transfer fluid. Refer to MA-24, "Changing Transfer Fluid" . 2. Remove the rear propeller shaft. Refer to PR-8, "Removal and Installation" . 3. Remove dust cover from rear case.
CAUTION: Be careful not to damage the rear case.
PFP:33140
UDS0009V
4. Remove rear oil seal from rear case, using puller. CAUTION: Be careful not to damage the rear case. Tool number : ST33290001 (J34286)
INSTALLATION 1. Install rear oil seal until it is flush with end face of rear case,
using drift. Tool number : KV38100500 ( -- )
CAUTION: q Do not reuse oil seal. q Apply petroleum jelly to oil seal.
2. Install dust cover to rear case, using drift. Tool number : KV40105310 ( -- )
CAUTION: q Do not reuse dust cover. q Apply petroleum jelly to dust cover.
Revision: April 2004
TF-82
LDIA0138E LDIA0139E LDIA0140E PDIA0116E
2004 Titan
REAR OIL SEAL
q Be sure to align indicator at top of transfer as shown. A
B
C
3. Install the rear propeller shaft. Refer to PR-8, "Removal and Installation" .
LDIA0141E
TF
4. Refill transfer fluid, check fluid level and for fluid leakage. Refer to MA-24, "Changing Transfer Fluid" .
E
F
G
H
I
J
K
L
M
Revision: April 2004
TF-83
2004 Titan
TRANSFER CONTROL DEVICE
TRANSFER CONTROL DEVICE Removal and Installation
REMOVAL 1. Switch 4WD shift switch to 2WD and set transfer assembly to 2WD. 2. Disconnect transfer control device harness connector. 3. Remove breather hose from transfer control device. 4. Remove bolts and detach control device.
PFP:33251
UDS000AY
INSTALLATION 1. Install O-ring to transfer control device.
CAUTION: q Do not reuse O-ring. q Apply petroleum jelly.
2. Install transfer control device. a. Turn control shift rod fully counterclockwise using flat-bladed
screwdriver, and then put mark on control shift rod.
b. Align transfer control device shaft cutout with mark on control shift rod, and install. NOTE: Turn transfer control device when transfer control device connection does not match.
Revision: April 2004
TF-84
LDIA0136E LDIA0137E PDIA0119E PDIA0120E
2004 Titan
TRANSFER CONTROL DEVICE
c. Tighten bolts to the specified torque. Refer to TF-88, "COMPONENTS" .
3. Install breather hose to transfer control device. 4. Connect transfer control device harness connector. 5. After the installation, check 4WD shift indicator pattern. If NG,
adjust position between transfer assembly and transfer control unit. Refer to TF-4, "Precautions for Transfer Assembly and Transfer Control Unit Replacement" .
A
B
C
SDIA2212E
TF
E
F
G
H
I
J
K
L
M
Revision: April 2004
TF-85
2004 Titan
AIR BREATHER HOSE
AIR BREATHER HOSE Removal and Installation
Refer to the figure for air breather hose removal and installation information.
PFP:31098
UDS0009W
SDIA2409E
CAUTION: q Make sure there are no pinched or restricted areas on the air breather hose caused by bending or
winding when installing it.
q Install air breather hose into breather tube (metal connector) and transfer control device (case connector) until hose end reaches the tube's base.
Revision: April 2004
TF-86
2004 Titan
TRANSFER ASSEMBLY
TRANSFER ASSEMBLY
Removal and Installation
REMOVAL
PFP:33100
A
UDS0009X
1. Switch 4WD shift switch to 2WD and set transfer assembly to 2WD.
B
2. Remove A/T undercover using power tools.
3. Remove center exhaust tubes and muffler. Refer to EX-4, "REMOVAL" .
4. Remove front and rear propeller shafts. Refer to PR-5, "REMOVAL" (front), PR-9, "REMOVAL" (rear).
C
CAUTION:
Be careful not to damage spline, sleeve yoke and rear oil seal when removing the rear propeller
shaft.
TF
NOTE:
Insert a plug into rear oil seal after removing rear propeller shaft.
5. Remove A/T mount bolts. Refer to AT-273, "COMPONENTS" .
E
6. Position two suitable jacks under A/T and transfer assembly.
7. Remove A/T crossmember. Refer to AT-273, "COMPONENTS" .
WARNING:
F
Support A/T and transfer assembly using two suitable jacks while removing A/T crossmember.
8. Remove breather hoses from the transfer rear case and transfer control device.
9. Disconnect the ATP switch, 4LO switch, wait detection switch, transfer control device electrical connec- G tors.
10. Remove transfer to A/T and A/T to transfer bolts.
WARNING:
H
Support transfer assembly with suitable jack while removing it.
11. Remove transfer assembly.
CAUTION:
I
Be careful not to damage rear oil seal (A/T).
INSTALLATION
J Install in the reverse order of removal.
q When installing the transfer to the transmission, install the
mounting bolts following the standard below.
K
Bolt length : 45 mm (1.77 in)
Tightening torque
: 36 N·m (3.7kg-m, 26 ft-lb)
L
q After the installation, check 4WD shift indicator pattern. If NG, adjust position between transfer assembly and transfer control unit. Refer to TF-4, "Precautions for Transfer Assembly and Transfer Control Unit Replacement" . And check the fluid level and for fluid leakage. Refer to MA-24, "Changing Transfer Fluid" .
M
SMT872C
Revision: April 2004
TF-87
2004 Titan
TRANSFER ASSEMBLY
Disassembly and Assembly
COMPONENTS
UDS0009Z
1. Baffle plate 4. Snap ring 7. Companion flange 10. ATP switch 13. Gasket 16. O-ring 19. Dust cover 22. Gasket
2. Breather tube 5. Input oil seal 8. Front oil seal 11. Rear case 14. Filler plug 17. Transfer control device 20. Rear oil seal
3. Front case 6. Self-lock nut 9. 4LO switch 12. Wait detection switch 15. Drain plug 18. Harness bracket 21. Retainer fixing bolt
SDIA2449E
Revision: April 2004
TF-88
2004 Titan
1. Input bearing 4. Carrier bearing 7. Metal bushing 10. Drive chain 13. Spacer 16. Clutch gear 19. Mainshaft rear bearing 22. Rear bearing 25. Retaining pin 28. Dram cam
TRANSFER ASSEMBLY
2. Snap ring 5. Sun gear 8. Planetary carrier assembly 11. Needle bearing 14. Sprocket 17. Oil pump assembly 20. Front bearing 23. L-H shift fork assembly 26. 2-4 shift fork assembly 29. Control shift rod
A
B
C
TF
E
F
G
H
I
J
K
L
SDIA2450E
3. Internal gear
6. Needle bearing
9. L-H sleeve
M
12. Mainshaft
15. 2-4 sleeve
18. Retainer
21. Front drive shaft
24. L-H shift rod assembly
27. Snap ring
30. Spacer
Revision: April 2004
TF-89
2004 Titan
TRANSFER ASSEMBLY
DISASSEMBLY 1. Remove drain plug and filler plug. 2. Remove transfer control device from rear case. 3. Remove O-ring form transfer control device.
4. Remove self-lock nut. 5. Put a matchmark on top of front drive shaft thread. The mark
should be in line with the mark on the companion flange. CAUTION: Always mark top of front drive shaft screw using paint.
6. Remove companion flange, using a puller.
7. Remove front oil seal from front case, using puller.
Tool number
: ST33290001 (J34286)
CAUTION: Be careful not to damage the front case.
Revision: April 2004
TF-90
SDIA2212E SDIA2214E SDIA2215E SDIA2423E
2004 Titan
TRANSFER ASSEMBLY
8. Remove 4LO switch [gray (with green paint)] and ATP switch (black) from front case.
9. Remove wait detection switch (gray) from rear case.
10. Remove dust cover from rear case, using a brass rod.
CAUTION: Be careful not to damage the rear case.
11. Remove rear oil seal from rear case, using puller.
CAUTION: Be careful not to damage the rear case.
Tool number
: ST33290001 (J34286)
12. Remove input oil seal from front case, using a flat-bladed screwdriver.
CAUTION: Be careful not to damage the front case and sun gear and input bearing.
Revision: April 2004
TF-91
A
B
C
PDIA0090E
TF
E
F
G
PDIA0091E
H
I
J
PDIA0092E
K
L
M
SDIA2424E
PDIA0094E
2004 Titan
TRANSFER ASSEMBLY
13. Remove retainer fixing bolts and gaskets.
14. Remove rear case mounting bolts and harness bracket from rear case.
15. Separate front case and rear case. Then remove rear case by levering it up with tire lever or the like. CAUTION: Be careful not to damage the mating surface.
16. Remove spacer from control shift rod. CAUTION: Be careful not to drop spacer.
17. Remove snap ring from mainshaft.
18. Remove the mainshaft rear bearing from mainshaft, using pullers.
19. Remove retainer from mainshaft.
Revision: April 2004
TF-92
PDIA0097E PDIA0299E PDIA0096E SDIA2430E SDIA2459E
2004 Titan
TRANSFER ASSEMBLY
20. Remove snap ring from mainshaft. 21. Remove oil pump assembly from mainshaft.
22. Remove snap ring from mainshaft. 23. Remove clutch gear from mainshaft.
24. Remove snap ring from L-H shift rod assembly. 25. Remove 2-4 sleeve and 2-4 shift fork assembly from mainshaft.
26. Remove drive chain together with sprocket and front drive shaft from front case.
27. Remove spacer and needle bearing from mainshaft. 28. Remove mainshaft from sun gear assembly. 29. Remove L-H shift rod assembly and control shift rod assembly
from front case. 30. Remove L-H sleeve together with L-H shift fork assembly from
planetary carrier assembly.
31. Remove snap ring from sun gear. CAUTION: Be careful not to damage the sun gear and input bearing.
Revision: April 2004
TF-93
A
B
C
SDIA2461E
TF
E
F
G
SDIA2462E
H
I
J
SDIA2463E
K
L
M
SDIA2464E
PDIA0099E
2004 Titan
TRANSFER ASSEMBLY
32. Remove the sun gear assembly from front case with a press, using drift.
Tool number
: KV38100200 ( -- )
33. Remove snap ring from front case.
34. Remove internal gear from front case.
35. Remove snap ring from front case.
36. Remove the input bearing from front case, using a drift.
Tool number
: KV38100200 ( -- )
Revision: April 2004
TF-94
PDIA0100E PDIA0101E PDIA0305E PDIA0103E PDIA0104E
2004 Titan
TRANSFER ASSEMBLY
37. Remove baffle plate from front case. 38. Remove the breather tube from front case.
INSPECTION AFTER DISASSEMBLY Case Check contact surfaces of shift rod and bearing for wear, damage, etc. If any is found, replace with new one.
Sleeve Check items below. If necessary, replace them with new one. q Damage and excessive wear of contact surfaces of sprocket,
mainshaft and sleeve. q Sleeve must move smoothly.
Gear and Shaft Check items below. If necessary, replace them with new one. q Damage, peeling, uneven wear, bending, etc. of shaft. q Excessive wear, damage, peeling, etc. of gear.
Revision: April 2004
TF-95
A
B
C
PDIA0105E
TF
E
F
G
PDIA0145E
H
I
J
K
PDIA0136E
L
M
PDIA0137E
2004 Titan
TRANSFER ASSEMBLY
Bearing Check items below. If necessary, replace them with new one. q Damage and rough rotation of bearing.
ASSEMBLY 1. Install breather tube, with plastic hammer.
CAUTION: Pay attention to the direction of breather tube.
2. Install baffle plate to front case, and tighten bolt to the specified torque. Refer to TF-88, "COMPONENTS" .
CAUTION: When installing baffle plate, tighten bolt pressing it to the direction shown in the figure.
3. Install the input bearing to front case, using a drift.
Tool number
: ST30720000 (J25405)
PDIA0300E PDIA0107E SDIA2479E PDIA0108E
Revision: April 2004
TF-96
2004 Titan
TRANSFER ASSEMBLY
4. Install snap ring to front case. CAUTION: Do not reuse snap ring.
5. Install internal gear with groove facing up into front case.
6. Install snap ring to front case.
CAUTION: Do not reuse snap ring.
7. Install the sun gear assembly to front case with a press, using drift.
Tool number
: KV38100200 ( -- )
8. Install snap ring to sun gear. CAUTION: q Do not reuse snap ring.
q Be careful not to damage the sun gear.
Revision: April 2004
TF-97
A
B
C
PDIA0103E
TF
E
F
G
PDIA0102E
H
I
J
PDIA0101E
K
L
M
PDIA0109E
PDIA0099E
2004 Titan
TRANSFER ASSEMBLY
9. Set L-H sleeve together with L-H shift fork assembly onto planetary carrier assembly.
10. Install control shift rod assembly to front case. CAUTION: Set pin of L-H shift fork assembly into the groove of dram cam.
11. Turn control shift rod assembly to the fully.
12. Install L-H shift rod assembly through L-H shift fork assembly opening to front case. CAUTION: Set pin of L-H shift rod assembly into the groove of dram cam.
13. Install mainshaft to sun gear assembly. 14. Apply ATF to spacer and periphery of needle bearing, install to
mainshaft.
15. Set front drive shaft and sprocket to drive chain. CAUTION: Identification mark of drive chain should be in the side of rear bearing of front drive shaft.
16. Install drive chain together with front drive shaft and sprocket to front case.
Revision: April 2004
TF-98
SDIA2438E SDIA2465E
SDIA2466E PDIA0110E SDIA2464E
2004 Titan
TRANSFER ASSEMBLY
17. Install 2-4 sleeve and 2-4 shift fork assembly to mainshaft. CAUTION: Be careful with orientation of 2-4 sleeve.
18. Install snap ring to L-H shift rod assembly. CAUTION: Do not reuse snap ring.
19. Install clutch gear to mainshaft.
20. Install snap ring to mainshaft. CAUTION: Do not reuse snap ring.
21. Install oil pump assembly to mainshaft.
22. Install snap ring to mainshaft. CAUTION: Do not reuse snap ring.
23. Install retainer to mainshaft.
CAUTION: Set the projection of oil pump assembly to identification hole, and then align locating hole of retainer to L-H shift rod assembly.
Revision: April 2004
TF-99
A
B
C
SDIA2467E
TF
E
F
G
SDIA2463E
H
I
J
SDIA2462E
K
L
M
SDIA2461E
SDIA2468E
2004 Titan
TRANSFER ASSEMBLY
24. Install the mainshaft rear bearing to mainshaft, using drift.
Tool number
: KV32102700 ( -- )
CAUTION: Do not put on it too hard in order to avoid snap ring's becoming dislodged from mainshaft.
25. Install snap ring to mainshaft.
CAUTION: Do not reuse snap ring.
26. Install spacer to control shift rod.
27. Apply liquid gasket to mating surface of front case. q Use Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-45, "Recommended Chemical Products and Sealants" . CAUTION: Remove old sealant adhering to mounting surfaces. Also remove any moisture, oil, or foreign material adhering to application and mounting surfaces.
28. Install rear case to front case.
29. Tighten bolts to specified torque. Refer to TF-88, "COMPONENTS" .
30. Set gaskets to retainer fixing bolts and tighten it to the specified torque. Refer to TF-88, "COMPONENTS" .
CAUTION: q Do not reuse gasket.
q Tighten them to the specified torque again.
Revision: April 2004
TF-100
SDIA2469E SDIA2430E SDIA2429E PDIA0299E PDIA0097E
2004 Titan
TRANSFER ASSEMBLY
31. Install input oil seal to front case, using drift.
Dimension A
: 4.0 - 4.6 mm (0.157 - 0.181 in)
Tool number
A: ST30720000 (J25405)
B: KV40104830 ( -- )
CAUTION: q Do not reuse oil seal.
q Apply petroleum jelly to oil seal.
32. Install rear oil seal until it is flush with end face of rear case, using drift.
Tool number
: KV38100500 ( -- )
CAUTION: q Do not reuse oil seal.
q Apply petroleum jelly to oil seal.
33. Install dust cover to rear case, using drift.
Tool number
: KV40105310 ( -- )
CAUTION: q Do not reuse dust cover.
q Apply petroleum jelly to dust cover.
q Be sure to align identification mark at top of transfer as shown.
34. Apply sealant to threads of wait detection switch (gray). Then install it to rear case and tighten to the specified torque. Refer to TF-88, "COMPONENTS" .
q Use Genuine Silicone RTV or equivalent. Refer to GI-45, "Recommended Chemical Products and Sealants" .
CAUTION: Remove old sealant and oil adhering to threads.
Revision: April 2004
TF-101
A
B
C
PDIA0114E
TF
E
F
G
PDIA0115E
H
I
J
PDIA0116E
K
L
M
PDIA0121E
PDIA0091E
2004 Titan
TRANSFER ASSEMBLY
35. Apply sealant to threads of 4LO switch (green) and ATP switch (black). Then install them to front case and tighten to the specified torque. Refer to TF-88, "COMPONENTS" . q Use Genuine Silicone RTV or equivalent. Refer to GI-45, "Recommended Chemical Products and Sealants" . CAUTION: Remove old sealant and oil adhering to threads.
36. Install front oil seal until it is flush with end face of front case, using drift.
Tool number
: KV38100500 ( -- )
CAUTION: q Do not reuse oil seal.
q Apply petroleum jelly to oil seal.
37. Install companion flange while align the matchmark of front drive shaft with the mark of companion flange.
38. Tighten self-lock nut to the specified torque, with flange wrench. Refer to TF-88, "COMPONENTS" . CAUTION: Do not reuse self-lock nut.
39. Install O-ring to transfer control device. CAUTION: q Do not reuse O-ring. q Apply petroleum jelly.
40. Install transfer control device to rear case. a. Turn control shift rod fully counterclockwise using flat-bladed
screwdriver, and then put mark on control shift rod.
Revision: April 2004
TF-102
PDIA0090E PDIA0117E SDIA2214E PDIA0118E PDIA0119E
2004 Titan
TRANSFER ASSEMBLY
b. Align transfer control device shaft cutout with mark on control
shift rod, and install.
A
NOTE:
Turn transfer control device when transfer control device con-
nection does not match.
B
c. Tighten bolts to the specified torque. Refer to TF-88, "COMPONENTS" .
C
PDIA0120E
TF
E
F
G
SDIA2212E
41. Set gasket to drain plug and filler plug. Install them to rear case and tighten to the specified torque. Refer H to TF-88, "COMPONENTS" .
CAUTION:
Do not reuse gasket.
I
J
K
L
M
Revision: April 2004
TF-103
2004 Titan
PLANETARY CARRIER PLANETARY CARRIER Disassembly and Assembly
DISASSEMBLY 1. Remove snap ring. 2. Remove sun gear assembly from planetary carrier assembly.
3. Remove snap ring from sun gear assembly.
4. Remove the carrier bearing from sun gear with a press, using drift and puller.
Tool number
A: ST35300000 ( -- )
B: ST30021000 (J22912-01)
5. Remove the needle bearing from sun gear with a press, using drift.
Tool number
: ST33710000 ( -- )
Revision: April 2004
TF-104
PFP:33113
UDS000AF PDIA0162E SDIA2353E SDIA2149E SDIA2354E
2004 Titan
PLANETARY CARRIER
6. Remove the metal bushing from sun gear with a press, using drift, drift bar and puller.
Tool number
A: ST33710000 ( -- ) B: ST35325000 ( -- ) C: ST33290001 (J34286)
INSPECTION AFTER DISASSEMBLY Bearing Check items below. If necessary, replace them with new one. q Damage and rough rotation of bearing.
Planetary Carrier q Measure end play of each pinion gear, and make sure the mea-
surement is within specification shown below. If out of specification, replace planetary carrier with new one.
Pinion gear end play : 0.1 - 0.7 mm (0.004 - 0.028 in) q Check working face of each gear, bearing and others for dam-
age, burrs, partial wear, dents and other abnormality. If any is found, replace planetary carrier with new one.
Sun Gear Check items below. If necessary, replace them with new one. q If oil passage of sun gear is clogged. For this, try to pass a 3.6
mm (0.142 in) dia. wire through oil passage as shown in the figure. q Contact surface of each gear, bearing and others for damage, burrs, partial wear, dents, etc.
Revision: April 2004
TF-105
A
B
C
SDIA2168E
TF
E
F
G
MTF0041D
H
I
J
K
PDIA0146E
L
M
PDIA0147E
2004 Titan
PLANETARY CARRIER
Internal Gear Check items below. If necessary, replace them with new one. q Internal gear teeth for damage, partial wear, dents etc.
ASSEMBLY
1. Apply ATF to periphery of metal bushing, then install the metal bushing until it becomes "Dimension A", using drift.
Dimension A
: 7.7 - 8.3mm (0.303 - 0.327in)
Tool number
: ST35300000 ( -- )
CAUTION: Do not reuse metal bushing.
2. Apply ATF to needle bearing, then install the needle bearing until it becomes "Dimension B", using drift.
Dimension B
: 62.5 - 63.1mm (2.461 - 2.484in)
Tool number
: ST33220000 ( -- )
CAUTION: Do not reuse needle bearing.
3. Install the carrier bearing to sun gear, using drifts.
Tool number
A: ST30720000 (J25405)
B: ST27863000 ( -- )
PDIA0157E SDIA2477E SDIA2478E PDIA0149E
Revision: April 2004
TF-106
2004 Titan
PLANETARY CARRIER
4. Install snap ring to sun gear assembly. CAUTION: Do not reuse snap ring.
5. Install sun gear assembly to planetary carrier assembly. 6. Install snap ring to planetary carrier assembly.
CAUTION: Do not reuse snap ring.
A
B
C
SDIA2353E
TF
E
F
G
PDIA0163E
H
I
J
K
L
M
Revision: April 2004
TF-107
2004 Titan
FRONT DRIVE SHAFT
FRONT DRIVE SHAFT
Disassembly and Assembly
DISASSEMBLY
1. Remove the front bearing, using drift and puller.
Tool number
A: ST35300000 ( -- )
B: ST30021000 (J22912-01)
2. Remove the rear bearing, using drift and puller.
Tool number
A: ST33710000 ( -- ) B: ST30021000 (J22912-01)
INSPECTION AFTER DISASSEMBLY Front drive shaft Check items below. If necessary, replace them with new ones. q Damage, peeling, dent, uneven wear, bending, etc. of shaft. q Excessive wear, damage, peeling, etc. of gear.
Bearing Check items below. If necessary, replace them with new ones. q Damage and rough rotation of bearing.
Revision: April 2004
TF-108
PFP:39100
UDS000AH SDIA2106E PDIA0153E
PDIA0154E
MTF0041D
2004 Titan
FRONT DRIVE SHAFT
ASSEMBLY 1. Install the rear bearing, using drifts.
Tool number
A: KV38100500 ( -- )
B: ST30901000 (J26010-01)
2. Install the front bearing, using drifts.
Tool number
A: KV38100500 ( -- ) B: ST30901000 (J26010-01)
A
B
C
PDIA0155E
TF
E
F
G
PDIA0156E
H
I
J
K
L
M
Revision: April 2004
TF-109
2004 Titan
SHIFT CONTROL SHIFT CONTROL Disassembly and Assembly
DISASSEMBLY 1. Remove snap ring and retaining pin using pin punch, and then
dram cam from control shift rod.
2. Remove retaining pin from L-H shift rod assembly, using pin punch.
INSPECTION AFTER DISASSEMBLY Shift fork
q Measure clearance between shift fork and sleeve. If it is out of specification, replace it with new one.
Standard value
2-4
: Less than 0.46 mm (0.018 in)
L-H
: Less than 0.46 mm (0.018 in)
Shift rod and fork components
q Check working face of shift rod and fork for wear, partial wear, abrasion, bending and other abnormality. If any is found, replace with new one.
Revision: April 2004
TF-110
PFP:33167
UDS000BV PDIA0122E PDIA0125E
PDIA0134E
PDIA0135E
2004 Titan
SHIFT CONTROL
ASSEMBLY 1. Install retaining pin evenly to L-H shift rod.
CAUTION: Do not reuse retaining pin.
2. Install dram cam to control shift rod, and then secure it with retaining pin. CAUTION: Do not reuse retaining pin.
3. Install snap ring to control shift rod. CAUTION: Do not reuse snap ring.
A
B
C
PDIA0125E
TF
E
F
G
PDIA0122E
H
I
J
K
L
M
Revision: April 2004
TF-111
2004 Titan
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS) General Specifications
Applied model
Transfer model
Gear ratio
High Low
Number of teeth
Planetary gear
Sun gear Internal gear
Front drive sprocket
Front drive shaft
Fluid capacity (Approx.)
(US qt, lmp qt)
Pinion Gear End Play
Item Pinion gear end play
Clearance Between Shift Fork and Sleeve
Item 2-4 shift fork to 2-4 sleeve L-H shift fork to L-H sleeve
VK56DE TX15A 1.000 2.596
57 91 38 38 2.0 (2-1/8, 1-3/4)
Standard 0.1 - 0.7 (0.004 - 0.028)
Standard Less than 0.46 mm (0.018 in) Less than 0.46 mm (0.018 in)
PFP:00030
UDS000BW
UDS000BX
Unit: mm (in)
UDS000BY
Unit: mm (in)
Revision: April 2004
TF-112
2004 Titan
Acrobat Distiller 4.05 for Windows FrameMaker SGML 5.5.6p145