PG
pg K ELECTRICAL
A
SECTION
B
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
D
CONTENTS
E
PRECAUTIONS ......................................................... 3 Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ................................................................. 3 Wiring Diagrams and Trouble Diagnosis ................. 3
POWER SUPPLY ROUTING CIRCUIT ..................... 4 Schematic ............................................................... 4 Wiring Diagram -- POWER -- ................................ 6 BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION ............................................... 6 ACCESSORY POWER SUPPLY -- IGNITION SW. IN ACC OR ON ............................................11 IGNITION POWER SUPPLY -- IGNITION SW. IN ON ................................................................. 12 IGNITION POWER SUPPLY -- IGNITION SW. IN ON AND/OR START ...................................... 13
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) ..................................... 16
System Description ............................................... 16 SYSTEMS CONTROLLED BY IPDM E/R .......... 16 CAN COMMUNICATION LINE CONTROL ........ 16 IPDM E/R STATUS CONTROL .......................... 17
CAN Communication System Description ............. 17 Function of Detecting Ignition Relay Malfunction ... 17 CONSULT-II Function ........................................... 18
CONSULT-II BASIC OPERATION ..................... 18 SELF-DIAGNOSTIC RESULTS ......................... 19 DATA MONITOR ................................................ 19 ACTIVE TEST .................................................... 21 Auto Active Test .................................................... 22 DESCRIPTION ................................................... 22 OPERATION PROCEDURE .............................. 22 INSPECTION IN AUTO ACTIVE TEST MODE... 22 Schematic ............................................................. 24 IPDM E/R Terminal Arrangement .......................... 25 IPDM E/R Power/Ground Circuit Inspection ......... 26 Inspection with CONSULT-II (Self-Diagnosis) ....... 27 Removal and Installation of IPDM E/R .................. 28 REMOVAL .......................................................... 28 INSTALLATION .................................................. 28
GROUND CIRCUIT .................................................. 29 F
Ground Distribution ................................................ 29
MAIN HARNESS ................................................ 29
ENGINE ROOM HARNESS ............................... 32 G ENGINE CONTROL HARNESS ......................... 35
BODY HARNESS ............................................... 36
BODY NO. 2 HARNESS .................................... 37 HARNESS ................................................................ 38
H
Harness Layout ..................................................... 38
HOW TO READ HARNESS LAYOUT ................ 38 OUTLINE (KING CAB MODELS) ....................... 39 I
OUTLINE (CREW CAB MODELS) ..................... 40
MAIN HARNESS ................................................ 41
ENGINE ROOM HARNESS (LH VIEW) ............. 43 J
ENGINE ROOM HARNESS (RH VIEW) ............ 46
ENGINE CONTROL HARNESS ......................... 48
CHASSIS HARNESS ......................................... 50 PG BODY HARNESS (KING CAB MODELS) .......... 52
BODY HARNESS (CREW CAB MODELS) ........ 54
BODY NO. 2 HARNESS (KING CAB MODELS)... 56 BODY NO. 2 HARNESS (CREW CAB MODELS)... 58 L
ROOM LAMP HARNESS ................................... 60
FRONT DOOR HARNESS LH ........................... 61
FRONT DOOR HARNESS RH ........................... 61 M
REAR DOOR HARNESS LH (CREW CAB MOD-
ELS) ................................................................... 62
REAR DOOR HARNESS RH (CREW CAB MOD-
ELS) ................................................................... 62
Wiring Diagram Codes (Cell Codes) ..................... 63
ELECTRICAL UNITS LOCATION ........................... 65
Electrical Units Location ........................................ 65
ENGINE COMPARTMENT ................................. 65
PASSENGER COMPARTMENT ........................ 66
Fuse ....................................................................... 68
Fusible Link ........................................................... 68
Circuit Breaker (Built Into BCM) ............................ 68
HARNESS CONNECTOR ........................................ 69
Description ............................................................. 69
HARNESS CONNECTOR (TAB-LOCKING
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TYPE) ................................................................. 69 HARNESS CONNECTOR (SLIDE-LOCKING TYPE) ................................................................. 70 HARNESS CONNECTOR (DIRECT-CONNECT SRS COMPONENT TYPE) ................................ 71 ELECTRICAL UNITS ............................................... 72 Terminal Arrangement ........................................... 72 STANDARDIZED RELAY ......................................... 73 Description ............................................................. 73 NORMAL OPEN, NORMAL CLOSED AND
MIXED TYPE RELAYS .......................................73 TYPE OF STANDARDIZED RELAYS .................73 SUPER MULTIPLE JUNCTION (SMJ) .....................75 Terminal Arrangement ............................................75 FUSE BLOCK-JUNCTION BOX(J/B) ......................77 Terminal Arrangement ............................................77 FUSE AND FUSIBLE LINK BOX .............................78 Terminal Arrangement ............................................78 FUSE AND RELAY BOX ..........................................79 Terminal Arrangement ............................................79
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2004 Titan
PRECAUTIONS
PRECAUTIONS
PFP:00011
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT A
BELT PRE-TENSIONER"
EKS007QA
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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.
C
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
D
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 per-
formed by an authorized NISSAN/INFINITI dealer.
E
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
F
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.
G
Wiring Diagrams and Trouble Diagnosis
EKS007QB
When you read wiring diagrams, refer to the following:
q Refer to GI-15, "How to Read Wiring Diagrams" in GI section.
H
q Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution.
When you perform trouble diagnosis, refer to the following:
I
q Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.
q Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.
J
PG
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2004 Titan
POWER SUPPLY ROUTING CIRCUIT
POWER SUPPLY ROUTING CIRCUIT Schematic
For detailed ground distribution, refer to PG-29, "Ground Distribution" .
PFP:24110
EKS007QC
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PG-4
WKWA1598E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
A B C D E F G H I J PG L M
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PG-5
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POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram -- POWER --
BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION
EKS007QD
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WKWA1600E
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POWER SUPPLY ROUTING CIRCUIT
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WKWA1601E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
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WKWA1602E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
A B C D E F G H I J PG L M
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PG-9
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POWER SUPPLY ROUTING CIRCUIT
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2004 Titan
POWER SUPPLY ROUTING CIRCUIT
ACCESSORY POWER SUPPLY -- IGNITION SW. IN ACC OR ON
A B C D E F G H I J PG L M
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WKWA1605E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON
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WKWA1606E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON AND/OR START
A B C D E F G H I J PG L M
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WKWA1607E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
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WKWA1608E
2004 Titan
POWER SUPPLY ROUTING CIRCUIT
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WKWA1609E
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System Description
EKS007QE
q IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block which were originally placed in engine compartment. It controls integrated relays via IPDM E/R control circuits.
q IPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control, etc.
q It controls operation of each electrical component via ECM, BCM and CAN communication lines.
CAUTION: None of the IPDM E/R integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R 1. Lamp control
Using CAN communication lines, it receives signals from the BCM and controls the following lamps:
q Headlamps (Hi, Lo)
q Parking lamps
q Tail lamps and license lamps
q Front fog lamps
2. Wiper control Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Heated mirror relay control Using CAN communication lines, it receives signals from the BCM and controls the heated mirror relay.
4. A/C compressor control Using CAN communication lines, it receives signals from the ECM and controls the A/C compressor (magnetic clutch).
5. Starter control Using CAN communication lines, it receives signals from the ECM and controls the starter relay.
6. Cooling fan control Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
7. Horn control Using CAN communication lines, it receives signals from the BCM and controls the horn relay.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L-line, CAN H-line), it is possible to transmit a maximum amount of information with minimum wiring. Each control unit can transmit and receive data, and reads necessary information only.
1. Fail-safe control
q When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control. After CAN communication returns to normal operation, it also returns to normal control.
q Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Controlled system Headlamp Tail and parking lamps
Cooling fan
Front wiper Heated mirrors A/C compressor Front fog lamps
Fail-safe mode q With the ignition switch ON, the headlamp (low) is ON. q With the ignition switch OFF, the headlamp (low) is OFF. q With the ignition switch ON, the tail and parking lamps are ON. q With the ignition switch OFF, the tail and parking lamps are OFF. q With the ignition switch ON, the cooling fan HI operates. q With the ignition switch OFF, the cooling fan stops. Until the ignition switch is turned off, the front wiper LO and HI remains in the same status it was in just before fail-safe control was initiated. Heated mirror relay OFF A/C compressor OFF Front fog lamp relay OFF
Revision: April 2004
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2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
A
1. CAN communication status
q CAN communication is normally performed with other control units.
q Individual unit control by IPDM E/R is normally performed.
B
q When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status
C
q Process to stop CAN communication is activated.
q All systems controlled by IPDM E/R are stopped. When 1 second has elapsed after CAN communica-
tion with other control units is stopped, mode switches to sleep status.
D
3. Sleep status
q IPDM E/R operates in low current-consumption mode.
q CAN communication is stopped.
E
q When a change in CAN communication signal is detected, mode switches to CAN communication status.
q When a change in ignition switch signal is detected, mode switches to CAN communication status.
F
CAN Communication System Description
EKS007QF
Refer to LAN-8, "CAN COMMUNICATION" .
G
Function of Detecting Ignition Relay Malfunction
EKS007QG
q When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM H E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
q When the state of the integrated ignition relay does not agree with the state of the ignition switch signal received via CAN communication, the IPDM E/R activates the tail lamp relay. I
Ignition switch signal
Ignition relay status
Tail lamp relay
ON OFF
ON OFF
--
--
J
ON
OFF
--
OFF
ON
NOTE: When the ignition switch is turned ON, the tail lamps are OFF.
ON (10 minutes)
PG
L
M
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
CONSULT-II Function
q CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
EKS007QH
Inspection Item, Diagnosis Mode SELF-DIAG RESULTS DATA MONITOR ACTIVE TEST CAN DIAG SUPPORT MNTR
Description The IPDM E/R performs diagnosis of CAN communication and self-diagnosis. The input/output data of the IPDM E/R is displayed in real time. The IPDM E/R sends a drive signal to electronic components to check their operation. The result of transmit/receive diagnosis of CAN communication can be read.
CONSULT-II BASIC OPERATION
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.
1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
BBIA0369E
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen.
q If "IPDM E/R" is not displayed, print "SELECT SYSTEM" screen, then refer to LAN-6, "PRECAUTIONS" .
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BCIA0029E BCIA0030E
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
4. Select "SELF-DIAG RESULTS" or "DATA MONITOR". A
B
SELF-DIAGNOSTIC RESULTS Operation Procedure 1. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE"
screen.
2. Self-diagnosis results are displayed.
C
BCIA0031E
D
E
F
G
Display Item List
WKIA1264E
H
Display items
CONSULT-II display code
Malfunction detection
TIME
Possible
causes
I
CRNT PAST
NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED.
CAN COMM CIRC
--
--
--
--
--
J
q If CAN communication reception/transmission
data has a malfunction, or if any of the control
U1000
units fail, data reception/transmission cannot be
confirmed.
X
q When the data in CAN communication is not received before the specified time.
Any of items
listed below have errors:
PG
X q TRANSMIT
DIAG
q ECM
L
q BCM/SEC
NOTE:
M
The details for display of the period are as follows:
q CRNT: Error currently detected with IPDM E/R.
q PAST: Error detected in the past and placed in IPDM E/R memory.
DATA MONITOR Operation Procedure 1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen. 2. Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECT FROM MENU" on the "DATA MONITOR" screen.
ALL SIGNALS
All signals will be monitored.
MAIN SIGNALS
Monitors the predetermined item(s).
SELECT FROM MENU Selects and monitors individual signal(s).
3. Touch "START". 4. Touch the required monitoring item on "SELECT ITEM MENU".
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording, touch "STOP".
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PG-20
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
All Signals, Main Signals, Select From Menu
Monitor item selection
A
Item name
CONSULT-II screen display
Display or unit
ALL
MAIN
SELECT
Description
SIGNALS SIGNALS FROM MENU
B
Motor fan request
MOTOR FAN REQ
1/2/3/4
X
X
X
Signal status input from ECM
Compressor request
AC COMP REQ ON/OFF
X
X
X
Signal status input from ECM
C
Tail & clear request
H/L LO request
TAIL & CLR REQ ON/OFF
HL LO REQ
ON/OFF
X
X
X
X
X
Signal status input from BCM
X
Signal status input from BCM
D
H/L HI request HL HI REQ
ON/OFF
X
X
X
Signal status input from BCM
FR fog request FR FOG REQ FR wiper request FR WIP REQ
ON/OFF
STOP/1LOW/ LOW/HI
X
X
X
X
X
Signal status input from BCM
E
X
Signal status input from BCM
Wiper auto stop
WIP AUTO STOP
ACT P/STOP P
X
X
X
Output status of IPDM E/R
F
Wiper protection WIP PROT
OFF/Block
X
X
X
Control status of IPDM E/R
Starter request ST RLY REQ
ON/OFF
X
X
Status of input signal NOTE
G
Ignition relay status
Rear defogger request (heated mirror)
IGN RLY RR DEF REQ
ON/OFF ON/OFF
X
X
X
X
X
Ignition relay status monitored with IPDM E/R
H
X
Signal status input from BCM
Oil pressure switch
OIL P SW
OPEN/CLOSE
X
X
Signal status input from IPDM
I
E/R
Hood switch
HOOD SW
OFF
X
Theft warning horn request
THFT HRN REQ ON/OFF
X
Signal status input from IPDM
E/R (function is not enabled)
J
X
Signal status input from BCM
Horn chirp
HORN CHIRP ON/OFF
X
X
Output status of IPDM E/R
PG
Daytime running lamp request
DTRL REQ
ON/OFF
X
X
Signal status input from BCM
NOTE:
L
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC position,
display may not be correct.
ACTIVE TEST
M
Operation Procedure
1. Touch "ACTIVE TEST" on "SELECT DIAG-MODE" screen.
2. Touch item to be tested, and check operation.
3. Touch "START".
4. Touch "STOP" while testing to stop the operation.
Test name Heated mirror
CONSULT-II screen display REAR DEFOGGER
Front wiper (HI, LO) output FRONT WIPER
Cooling fan output
Lamp (HI, LO, TAIL, FOG) output
MOTOR FAN EXTERNAL LAMPS
Description
With a certain ON-OFF operation, the heated mirror relay can be operated.
With a certain operation (OFF, HI ON, LO ON), the front wiper relay (Lo, Hi) can be operated.
With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the lamp relay (Low, High, Tail, Fog) can be operated.
Revision: April 2004
PG-21
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Test name Cornering lamp output Horn output
CONSULT-II screen display CORNERING LAMP HORN
Description --
With a certain ON-OFF operation, the horn relay can be operated.
Auto Active Test
DESCRIPTION
EKS007QI
q In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the following systems:
Front wipers
Tail, parking, and license lamps
Front fog lamps
Headlamps (Hi, Lo) (Daytime light system if equipped)
A/C compressor (magnetic clutch)
Cooling fan
OPERATION PROCEDURE 1. Close hood and front door RH, and lift wiper arms away from windshield (to prevent glass damage by
wiper operation).
NOTE: When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON and, within 20 seconds, press front door switch LH 10 times. Then turn ignition switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once.
6. After a series of operations is repeated three times, auto active test is completed.
NOTE: When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION: Be sure to perform BL-35, "Door Switch Check (King Cab)" or BL-37, "Door Switch Check (Crew Cab)" when the auto active test cannot be performed.
INSPECTION IN AUTO ACTIVE TEST MODE q When auto active test mode is actuated, the following six steps are repeated three times.
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PG-22
WKIA1694E
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Concept of Auto Active Test q IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu- A
nication line. Therefore, when auto active test mode is activated successfully, CAN communication between IPDM E/R and BCM is normal.
q If any of the systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed B using auto active test.
Diagnosis chart in auto active test mode
Symptom
Inspection contents
Possible cause
C
YES q BCM signal input system
Any of front wipers, tail and parking lamps, front Perform auto active
q Lamp/wiper motor malfunction
D
fog lamps, and head- test. Does system in
q Lamp/wiper motor ground circuit malfunction
lamps (Hi, Lo) do not question operate?
NO q Harness/connector malfunction between IPDM E/R and system in
operate.
question
E
q IPDM E/R (integrated relay) malfunction
q BCM signal input circuit
YES q CAN communication signal between BCM and ECM
F
A/C compressor does not operate.
Perform auto active test. Does magnetic clutch operate?
q CAN communication signal between ECM and IPDM E/R q Magnetic clutch malfunction
NO
q Harness/connector malfunction between IPDM E/R and magnetic clutch
G
q IPDM E/R (integrated relay) malfunction
q ECM signal input circuit YES
H
q CAN communication signal between ECM and IPDM E/R
Cooling fan does not operate.
Perform auto active test. Does cooling fan operate?
q Cooling fan motor malfunction
NO
q Harness/connector malfunction between IPDM E/R and cooling fan motor
I
q IPDM E/R (integrated relay) malfunction
Oil pressure warning lamp does not operate.
Perform auto active test. Does oil pressure warning lamp blink?
q Harness/connector malfunction between IPDM E/R and oil pressure
J
YES
switch q Oil pressure switch malfunction
q IPDM E/R
PG
q CAN communication signal between BCM and combination meter NO
q Combination meter
L
M
Revision: April 2004
PG-23
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Schematic
EKS007QJ
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PG-24
WKWA1610E
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R Terminal Arrangement
EKS007QK
A
B
C
D
E
F
G
H
I
J
PG
L
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PG-25
WKIA1695E
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R Power/Ground Circuit Inspection
1. FUSE AND FUSIBLE LINK INSPECTION
q Check that the following fusible links or IPDM E/R fuses are not blown.
Terminal No.
1, 2, 22
OK or NG OK >> GO TO 2. NG >> Replace fuse or fusible link.
2. POWER CIRCUIT INSPECTION
Signal name Battery power
Fuse, fusible link No. a, c, d, e, l
1. Disconnect IPDM E/R harness connector E118. 2. Check voltage between IPDM E/R harness connector E118 terminals 1 (B/Y), 2 (R) and ground.
Battery voltage should exist.
OK or NG OK >> GO TO 3. NG >> Repair or replace IPDM E/R power circuit harness.
EKS007QL
3. GROUND CIRCUIT INSPECTION
1. Disconnect IPDM E/R harness connectors E122 and E124. 2. Check continuity between IPDM E/R harness connector E122
terminal 38 (B), and E124 terminal 59 (B) and ground. Continuity should exist.
OK or NG OK >> Inspection End. NG >> Repair or replace ground circuit harness of IPDM E/R.
SKIA1987E WKIA1453E
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PG-26
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Inspection with CONSULT-II (Self-Diagnosis)
EKS007QM
CAUTION:
A
If a CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on which control unit(s) carry out CAN communication.
1. SELF-DIAGNOSIS RESULT CHECK
B
1. Connect CONSULT-II and select "IPDM E/R" on the Diagnosis System Selection screen.
2. Select "SELF-DIAG RESULTS" on the diagnosis mode selection screen.
C
3. Check display content in self-diagnosis results.
CONSULT-II Display
CONSULT-II
TIME
display code CRNT PAST
Details of diagnosis result
D
NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED.
--
--
--
No malfunction
E
CAN COMM CIRC
Any of items listed below have errors:
q TRANSMIT DIAG
U1000
X
X
q ECM
F
q BCM/SEC
NOTE: The Details for Display for the Period are as follows:
G
q CRNT: Error currently detected by IPDM E/R.
q PAST: Error detected in the past and stored in IPDM E/R memory.
H
Contents displayed
NO DTC DETECTED. FURTHER TESTING MAY BE REQUIRED.>>INSPECTION END.
CAN COMM CIRC>>Print out the self-diagnosis result and refer to LAN-8, "CAN COMMUNICATION" .
I
J
PG
L
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Revision: April 2004
PG-27
2004 Titan
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Removal and Installation of IPDM E/R
REMOVAL 1. Disconnect negative battery cable.
2. Remove IPDM E/R upper cover.
EKS007QN
3. Release 2 clips and pull IPDM E/R up from case. 4. Disconnect IPDM E/R connectors and remove the IPDM E/R.
INSTALLATION Installation is in the reverse order of removal.
WKIA1454E WKIA1696E
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PG-28
2004 Titan
GROUND CIRCUIT
Ground Distribution
MAIN HARNESS
GROUND CIRCUIT
PFP:24080
A
EKS007QO
B C D E F G H I J PG L M
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PG-29
WKIA2845E
2004 Titan
GROUND CIRCUIT
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PG-30
WKIA2846E
2004 Titan
GROUND CIRCUIT
A B C D E F G H I J PG L M
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PG-31
WKIA2847E
2004 Titan
ENGINE ROOM HARNESS
GROUND CIRCUIT
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PG-32
WKIA2848E
2004 Titan
GROUND CIRCUIT
A B C D E F G H I J PG L M
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PG-33
WKIA2849E
2004 Titan
GROUND CIRCUIT
Revision: April 2004
PG-34
WKIA1459E
2004 Titan
GROUND CIRCUIT
ENGINE CONTROL HARNESS
A B C D E F G H I J PG L M
Revision: April 2004
PG-35
WKIA1460E
2004 Titan
BODY HARNESS
GROUND CIRCUIT
Revision: April 2004
PG-36
WKIA2850E
2004 Titan
GROUND CIRCUIT
BODY NO. 2 HARNESS
A B C D E F G H I J PG L M
Revision: April 2004
PG-37
WKIA2851E
2004 Titan
HARNESS
HARNESS
PFP:24010
Harness Layout
HOW TO READ HARNESS LAYOUT The following Harness Layouts use a map style grid to help locate connectors on the drawings: q Main Harness q Engine Room Harness LH View (Engine Compartment) q Engine Room Harness RH View (Engine Compartment) q Engine Control Harness q Body Harness and Rear Bumper Sub Harness q Body No. 2 Harness and Fuel Pump Sub Harness To use the grid reference 1. Find the desired connector number on the connector list. 2. Find the grid reference. 3. On the drawing, find the crossing of the grid reference letter column and number row. 4. Find the connector number in the crossing zone. 5. Follow the line (if used) to the connector.
EKS007QP SEL252V
CONNECTOR SYMBOL Main symbols of connector (in Harness Layout) are indicated below.
Connector type
Water proof type
Male
Female
Standard type
Male
Female
q Cavity: Less than 4 q Relay connector
q Cavity: From 5 to 8
q Cavity: More than 9
q Ground terminal etc.
--
Revision: April 2004
PG-38
2004 Titan
OUTLINE (KING CAB MODELS)
HARNESS
A
B
C
D
E
F
G
H
I
LKIA0455E
J PG
L
M
Revision: April 2004
PG-39
2004 Titan
OUTLINE (CREW CAB MODELS)
HARNESS
WKIA2853E
Revision: April 2004
PG-40
2004 Titan
HARNESS
MAIN HARNESS
A B C D E F G H I J PG L M
Revision: April 2004
PG-41
WKIA2854E
2004 Titan
HARNESS
Revision: April 2004
PG-42
WKIA2855E
2004 Titan
HARNESS
ENGINE ROOM HARNESS (LH VIEW)
Engine Compartment
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA2857E
Refer to PG-46, "ENGINE ROOM HARNESS (RH VIEW)" for continuation of engine room harness.
Revision: April 2004
PG-43
2004 Titan
HARNESS
Revision: April 2004
PG-44
WKIA2858E
2004 Titan
HARNESS
Passenger Compartment
A B C D E F G H I J PG L M
Revision: April 2004
PG-45
WKIA2859E
2004 Titan
HARNESS
ENGINE ROOM HARNESS (RH VIEW) Engine Compartment
WKIA2860E
Refer to PG-43, "ENGINE ROOM HARNESS (LH VIEW)" for continuation of engine room harness.
Revision: April 2004
PG-46
2004 Titan
HARNESS
Revision: April 2004
PG-47
A B C D E F G H I J PG L M
WKIA2861E
2004 Titan
ENGINE CONTROL HARNESS
HARNESS
Revision: April 2004
PG-48
WKIA2862E
2004 Titan
HARNESS
Revision: April 2004
PG-49
A B C D E F G H I J PG L M
WKIA2863E
2004 Titan
CHASSIS HARNESS
HARNESS
Revision: April 2004
PG-50
LKIA0458E
2004 Titan
HARNESS
Revision: April 2004
PG-51
A B C D E F G H I J PG L M
WKIA1736E
2004 Titan
HARNESS
BODY HARNESS (KING CAB MODELS)
Revision: April 2004
PG-52
WKIA2864E
2004 Titan
HARNESS
Revision: April 2004
PG-53
A B C D E F G H I J PG L M
WKIA2865E
2004 Titan
HARNESS
BODY HARNESS (CREW CAB MODELS)
Revision: April 2004
PG-54
LKIA0471E
2004 Titan
HARNESS
Revision: April 2004
PG-55
A B C D E F G H I J PG L M
WKIA2866E
2004 Titan
HARNESS
BODY NO. 2 HARNESS (KING CAB MODELS)
Revision: April 2004
PG-56
LKIA0462E
2004 Titan
HARNESS
Revision: April 2004
PG-57
A B C D E F G H I J PG L M
WKIA2867E
2004 Titan
HARNESS
BODY NO. 2 HARNESS (CREW CAB MODELS)
Revision: April 2004
PG-58
LKIA0473E
2004 Titan
HARNESS
Revision: April 2004
PG-59
A B C D E F G H I J PG L M
WKIA1740E
2004 Titan
ROOM LAMP HARNESS
HARNESS
Revision: April 2004
PG-60
LKIA0464E
2004 Titan
FRONT DOOR HARNESS LH
HARNESS
FRONT DOOR HARNESS RH
A
B
C
D
E
F
G
H
WKIA2868E
I
J
PG
L
M
Revision: April 2004
PG-61
WKIA1726E
2004 Titan
HARNESS
REAR DOOR HARNESS LH (CREW CAB MODELS)
REAR DOOR HARNESS RH (CREW CAB MODELS)
WKIA1727E
Revision: April 2004
PG-62
WKIA1728E
2004 Titan
HARNESS
Wiring Diagram Codes (Cell Codes)
EKS007QQ
Use the chart below to find out what each wiring diagram code stands for.
A
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code
Section
Wiring Diagram Name
B
A/C,M
MTC
Manual Air Conditioner
AF1B1
EC
Air Fuel Ratio Sensor 1 Bank 1
C
AF1B2
EC
Air Fuel Ratio Sensor 1 Bank 2
APPS1
EC
Accelerator Pedal Position Sensor
APPS2
EC
Accelerator Pedal Position Sensor
D
APPS3
EC
Accelerator Pedal Position Sensor
ABS
BRC
Anti-Lock Braske System
ASC/BS
EC
ASCD Brake Switch
E
ASC/SW
EC
ASCD Steering Switch
ASCBOF
EC
ASCD Brake Switch
ASCIND
EC
ASCD Indicator
F
A/T
AT
A/T Assembly
AT/IND
DI
A/T Indicator Lamp
AUDIO
AV
Audio
G
AUTO/DP
SE
Automatic Drive Positioner
AUTO/L
LT
Auto Light Control
BACK/L
LT
Back-up Lamp
H
BRK/SW
EC
Brake Switch
CAN
EC
CAN Communication Line
CAN
LAN
CAN System
I
CHARGE
SC
Charging System
COOL/F
EC
Cooling Fan Control
COMBSW
LT
Combination Switch
J
COMM
AV
Audio Visual Communication System
COMPAS
DI
Compass and Thermometer
D/LOCK
BL
Power Door Lock
PG
DEF
GW
Rear Window Defogger
DTRL
LT
Headlamp - With Daytime Light System
DVD
AV
DVD Entertainment System
L
ECM/PW
EC
ECM Power Supply for Back-Up
ECTS
EC
Engine Coolant Temperature Sensor
ETC1
EC
Electric Throttle Control Function
M
ETC2
EC
Throttle Control Motor Relay
ETC3
EC
Throttle Control Motor
F/FOG
LT
Front Fog Lamp
F/PUMP
EC
Fuel Pump
FTTS
EC
Fuel Tank Temperature Sensor
FUELB1
EC
Fuel Injection System Bank 1
FUELB2
EC
Fuel Injection System Bank 2
H/LAMP
LT
Headlamp
HORN
WW
Horn
HSEAT
SE
Heated Seat
I/MIRR
GW
Inside Mirror (Auto Anti-Dazzling Mirror)
IATS
EC
Intake Air Temperature Sensor
IGNSYS
EC
Ignition System
ILL
LT
Illumination
INJECT
EC
Injectors
Revision: April 2004
PG-63
2004 Titan
INT/L KEYLES KS MAFS MAIN METER MIL/DL MIRROR MMSW NATS NAVI O2H2B1 O2H2B2 O2S2B1 O2S2B2 P/SCKT PEDAL PGC/V PHASE PNP/SW POS POWER PRE/SE PS/SEN RP/SEN SEAT SEN/PW SHIFT SONAR SROOF SRS START STOP/L T/TOW T/WARN TAIL/L T/F TPS1 TPS2 TPS3 TRNSCV TURN VDC VEHSEC VENT/V WARN WINDOW WIPER
LT BL EC EC EC DI EC GW AT BL AV EC EC EC EC WW AP EC EC EC EC PG EC EC EC SE EC AT DI RF SRS SC LT LT WT LT TF EC EC EC BL LT BRC BL EC DI GW WW
HARNESS
Room/Map, Vanity, Cargo, Personal, Foot, Step, and Puddle Lamps Remote Keyless Entry System Knock Sensor Mass Air Flow Sensor Main Power Supply and Ground Circuit Speedometer, Tachometer, Temp. and Fuel Gauges Malfunction Indicator Lamp Door Mirror Manual Mode Switch Nissan Anti-Theft System Navigation System Rear Heated Oxygen Sensor 2 Heater Bank 1 Rear Heated Oxygen Sensor 2 Heater Bank 2 Heated Oxygen Sensor 2 Bank 1 Heated Oxygen Sensor 2 Bank 2 Power Socket Adjustable Pedal System EVAP Canister Purge Volume Control Solenoid Valve Camshaft Position Sensor (PHASE) (Bank 1) Park/Neutral Position Switch Crankshaft Position Sensor (POS) Power Supply Routing EVAP Control System Pressure Sensor Power Steering Pressure Sensor Refrigerant Pressure Sensor Power Seat Sensor Power Supply A/T Shift Lock System Rear Sonar System Sunroof Supplemental Restraint System Starting System Stop Lamp Trailer Tow Low Tire Pressure Warning System Parking, License and Tail Lamps Transfer Case Throttle Position Sensor Throttle Position Sensor Throttle Position Sensor HOMELINK® Universal Transceiver Turn Signal and Hazard Warning Lamps Vehicle Dynamic Control System Vehicle security (theft warning) system EVAP Canister Vent Control Valve Warning Lamps Power Window Front Wiper and Washer
Revision: April 2004
PG-64
2004 Titan
ELECTRICAL UNITS LOCATION
ELECTRICAL UNITS LOCATION Electrical Units Location
ENGINE COMPARTMENT
PFP:25230
A
EKS007QR
B C D E F G H I J PG L M
Revision: April 2004
PG-65
WKIA1703E
2004 Titan
ELECTRICAL UNITS LOCATION
PASSENGER COMPARTMENT
Revision: April 2004
PG-66
WKIA2872E
2004 Titan
ELECTRICAL UNITS LOCATION
A B C D E F G H I J PG L M
Revision: April 2004
PG-67
WKIA1705E
2004 Titan
ELECTRICAL UNITS LOCATION
Fuse
q If fuse is blown, be sure to eliminate cause of incident before installing new fuse.
q Use fuse of specified rating. Never use fuse of more than specified rating.
q Do not partially install fuse; always insert it into fuse holder properly.
q Remove fuse for "ELECTRICAL PARTS (BAT)" if vehicle is not used for a long period of time.
EKS007QS
CEL083
Fusible Link
EKS007QT
A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is questionable, use circuit tester or test lamp.
CAUTION: q If fusible link should melt, it is possible that critical circuit (power supply or large current carrying
circuit) is shorted. In such a case, carefully check and eliminate cause of incident.
q Never wrap outside of fusible link with vinyl tape.
q Never let fusible link touch any other wiring harness, vinyl or rubber parts.
Circuit Breaker (Built Into BCM)
EKS007QU
For example, when current is 30A, the circuit is broken within 8 to 20 seconds. A circuit breaker is used for the following systems: q Power seat q Power windows q Power door locks q Remote keyless entry system q Power sunroof q Rear window wiper
SBF284E
Revision: April 2004
PG-68
2004 Titan
HARNESS CONNECTOR
HARNESS CONNECTOR
Description
HARNESS CONNECTOR (TAB-LOCKING TYPE)
PFP:B4341
A
EKS007QV
q The tab-locking type connectors help prevent accidental looseness or disconnection.
B
q The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the
illustration below.
Refer to the next page for description of the slide-locking type connector.
C
CAUTION:
Do not pull the harness or wires when disconnecting the connector.
[Example]
D
E
F
G
H
I
J
PG
L
M
Revision: April 2004
PG-69
SEL769DA
2004 Titan
HARNESS CONNECTOR
HARNESS CONNECTOR (SLIDE-LOCKING TYPE) q A new style slide-locking type connector is used on certain systems and components, especially those
related to OBD. q The slide-locking type connectors help prevent incomplete locking and accidental looseness or discon-
nection. q The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustra-
tion below. CAUTION: q Do not pull the harness or wires when disconnecting the connector. q Be careful not to damage the connector support bracket when disconnecting the connector. [Example]
AEL299C
Revision: April 2004
PG-70
2004 Titan
HARNESS CONNECTOR
HARNESS CONNECTOR (DIRECT-CONNECT SRS COMPONENT TYPE) q SRS direct-connect type harness connectors are used on certain SRS components such as air bag mod- A
ules and seat belt pre-tensioners.
q Always pull up to release black locking tab prior to removing connector from SRS component. q Always push down to lock black locking tab after installing connector to SRS component. When locked, B
the black locking tab is level with the connector housing.
CAUTION:
q Do not pull the harness or wires when removing connectors
C
from SRS components.
D
E
WHIA0103E
F
G
H
I
J
PG
L
M
Revision: April 2004
PG-71
2004 Titan
ELECTRICAL UNITS Terminal Arrangement
ELECTRICAL UNITS
PFP:23710
EKS007QW
Revision: April 2004
PG-72
WKIA1795E
2004 Titan
STANDARDIZED RELAY
STANDARDIZED RELAY
Description
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
PFP:25230
A
EKS007QX
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
B
C
D
E
F
TYPE OF STANDARDIZED RELAYS
G
SEL881H
H
I
J
PG
L
M
SEL882H
1M
1 Make
2M
2 Make
1T
1 Transfer
1M·1B
1 Make 1 Break
Revision: April 2004
PG-73
2004 Titan
STANDARDIZED RELAY
Revision: April 2004
PG-74
WKIA0253E
2004 Titan
SUPER MULTIPLE JUNCTION (SMJ)
SUPER MULTIPLE JUNCTION (SMJ) Terminal Arrangement
PFP:84341
A
EKS007QY
B C D E F G H I J PG L M
Revision: April 2004
PG-75
LKIA0385E
2004 Titan
SUPER MULTIPLE JUNCTION (SMJ)
Revision: April 2004
PG-76
WKIA1845E
2004 Titan
FUSE BLOCK-JUNCTION BOX(J/B)
FUSE BLOCK-JUNCTION BOX(J/B) Terminal Arrangement
PFP:24350
A
EKS007QZ
B C D E F G H I J PG L M
Revision: April 2004
PG-77
WKIA1706E
2004 Titan
FUSE AND FUSIBLE LINK BOX
FUSE AND FUSIBLE LINK BOX Terminal Arrangement
PFP:24381
EKS007R0
Revision: April 2004
PG-78
WKIA2869E
2004 Titan
FUSE AND RELAY BOX Terminal Arrangement
FUSE AND RELAY BOX
PFP:24012
A
EKS007R1
B C D E F G H I J PG L M
Revision: April 2004
PG-79
WKIA2870E
2004 Titan
FUSE AND RELAY BOX
Revision: April 2004
PG-80
2004 Titan
Acrobat Distiller 4.05 for Windows FrameMaker SGML 5.5.6p145