File Info : application/pdf, 103 Pages, 1.57MB

WT ?embedded

SUSPENSION

WT A

SECTION

ROAD WHEELS & TIRES C

CONTENTS

BASIC INSPECTION ................................... 4
DIAGNOSIS AND REPAIR WORK FLOW ........ 4

DTC Logic ...............................................................17 F Diagnosis Procedure ..............................................17 Special Repair Requirement ...................................18

Repair Work Flow .....................................................4
C1708, C1709, C1710, C1711 TRANSMITTER

INSPECTION AND ADJUSTMENT .................... 6

... 19

TRANSMITTER WAKE UP OPERATION ..................6 TRANSMITTER WAKE UP OPERATION : Description ....................................................................6 TRANSMITTER WAKE UP OPERATION : Special Repair Requirement ...........................................6

Description ..............................................................19 DTC Logic ...............................................................19 Diagnosis Procedure ..............................................19 Special Repair Requirement ...................................20
C1712, C1713, C1714, C1715 TRANSMITTER

H I

ID REGISTRATION PROCEDURE .............................6

... 21

ID REGISTRATION PROCEDURE : Description......6 ID REGISTRATION PROCEDURE : Special Re-

Description ..............................................................21 DTC Logic ...............................................................21

pair Requirement ......................................................6

Diagnosis Procedure ..............................................21

Special Repair Requirement ...................................23

SYSTEM DESCRIPTION ............................. 9 C1716, C1717, C1718, C1719 TRANSMITTER

TPMS .................................................................. 9

... 24

System Diagram .......................................................9 System Description ..................................................9

Description ..............................................................24 L DTC Logic ...............................................................24

Component Parts Location ..................................... 10

Diagnosis Procedure ..............................................24

Component Description .......................................... 10

Component Inspection ............................................25 Special Repair Requirement ...................................25

DIAGNOSIS SYSTEM (BCM) ...........................12

C1720, C1721, C1722, C1723 TRANSMITTER

COMMON ITEM ........................................................ 12 COMMON ITEM : CONSULT-III Function (BCM COMMON ITEM) .................................................... 12

...26 N
Description ..............................................................26 DTC Logic ...............................................................26

AIR PRESSURE MONITOR ..................................... 13 AIR PRESSURE MONITOR : Diagnosis Descrip-

Diagnosis Procedure ..............................................26 O Special Repair Requirement ...................................28

tion ......................................................................... 13 C1724, C1725, C1726, C1727 TRANSMITTER

AIR PRESSURE MONITOR : CONSULT-III Function (BCM - AIR PRESSURE MONITOR) .............. 15

...29 P
Description ..............................................................29

DTC/CIRCUIT DIAGNOSIS ........................17

DTC Logic ...............................................................29 Diagnosis Procedure ..............................................29

C1704, C1705, C1706, C1707 LOW TIRE

Special Repair Requirement ...................................30

PRESSURE .......................................................17
Description ............................................................. 17

C1729 VEHICLE SPEED SIGNAL ....................32

Revision: 2009 October

WT-1

2009 G37 Sedan

Description ............................................................. 32 DTC Logic .............................................................. 32 Diagnosis Procedure ............................................. 32 Special Repair Requirement .................................. 32
C1734 BCM ....................................................... 33
Description ............................................................. 33 DTC Logic .............................................................. 33 Diagnosis Procedure ............................................. 33 Special Repair Requirement .................................. 34
TIRE PRESSURE RECEIVER .......................... 35
Description ............................................................. 35 Component Function Check .................................. 35 Diagnosis Procedure ............................................. 35
TIRE PRESSURE WARNING CHECK SWITCH ............................................................ 37
Description ............................................................. 37 Component Function Check .................................. 37 Diagnosis Procedure ............................................. 37
LOW TIRE PRESSURE WARNING LAMP ...... 39
Description ............................................................. 39 Component Function Check .................................. 39 Diagnosis Procedure ............................................. 39
POWER SUPPLY AND GROUND CIRCUIT .... 40
BCM (BODY CONTROL MODULE) ........................ 40 BCM (BODY CONTROL MODULE) : Diagnosis Procedure .............................................................. 40
UNIFIED METER AND A/C AMP. ............................ 40 UNIFIED METER AND A/C AMP. : Diagnosis Procedure .................................................................... 40
TPMS ................................................................ 42
Wiring Diagram - TIRE PRESSURE MONITORING SYSTEM - ...................................................... 42
ECU DIAGNOSIS INFORMATION ............. 46

Description ............................................................. 86 Diagnosis Procedure .............................................. 86
LOW TIRE PRESSURE WARNING LAMP BLINKS ............................................................. 88
Description ............................................................. 88 Diagnosis Procedure .............................................. 88
TURN SIGNAL LAMP BLINKS ........................ 90
Description ............................................................. 90 Diagnosis Procedure .............................................. 90
ID REGISTRATION CANNOT BE COMPLETED ..................................................................... 91
Description ............................................................. 91 Diagnosis Procedure ............................................. 91
NORMAL OPERATING CONDITION ............... 92
Description ............................................................. 92
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING ........................... 93
NVH Troubleshooting Chart ................................... 93
PRECAUTION ............................................ 94
PRECAUTIONS ................................................ 94
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ................................................................ 94 Service Notice or Precautions ................................ 94
PREPARATION .......................................... 95
PREPARATION ................................................ 95
Special Service Tool .............................................. 95 Commercial Service Tool ....................................... 95
PERIODIC MAINTENANCE ....................... 96
ROAD WHEEL .................................................. 96
Inspection ............................................................... 96

BCM (BODY CONTROL MODULE) ................. 46
Reference Value .................................................... 46 Wiring Diagram - BCM - ........................................ 70 Fail-safe ................................................................. 75 DTC Inspection Priority Chart ............................. 77 DTC Index ............................................................. 79
SYMPTOM DIAGNOSIS ............................ 82
TPMS ................................................................ 82
Symptom Table ..................................................... 82
LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON ...................................... 85
Description ............................................................. 85 Diagnosis Procedure ............................................. 85
LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF .................................... 86

REMOVAL AND INSTALLATION .............. 97
ROAD WHEEL TIRE ASSEMBLY ................... 97
Adjustment ............................................................. 97
TRANSMITTER ...............................................100
Exploded View ..................................................... 100 Removal and Installation ...................................... 100
TIRE PRESSURE RECEIVER .........................102
Exploded View ..................................................... 102 Removal and Installation ...................................... 102
SERVICE DATA AND SPECIFICATIONS (SDS) .........................................................103
SERVICE DATA AND SPECIFICATIONS (SDS) ...............................................................103
Road Wheel ......................................................... 103

Revision: 2009 October

WT-2

2009 G37 Sedan

Wheel Nut ............................................................ 103

Tire .......................................................................103 A

Revision: 2009 October

WT-3

2009 G37 Sedan

DIAGNOSIS AND REPAIR WORK FLOW
< BASIC INSPECTION >
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Repair Work Flow
DETAILED FLOW
1.VERIFY CUSTOMER COMPLAINTS
Interview the customer to obtain detailed information about the symptom.

INFOID:0000000004503708

>> GO TO 2.
2.DETERMINE REFERENCE ITEM RELATED TO SYMPTOM
Check the symptom on the vehicle from the information obtained. (cruise test, warning lamp illumination or blinking, etc.)
Is the symptom confirmed?
YES >> GO TO 3. NO >> GO TO 4.
3.PRELIMINARY INSPECTION
1. Check all tire pressures. Refer to WT-103, "Tire". 2. Check the low tire pressure warning lamp for illumination or blinking. Refer to WT-82, "Symptom Table".
Is the malfunction finished?
YES >> INSPECTION END NO >> GO TO 4.
4.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis. Record any DTCs and data displayed on CONSULT-III.
Is there any DTC displayed?
YES >> GO TO 6. NO >> GO TO 5.
5.CHECK SYMPTOM
Perform troubleshooting by symptom. Refer to WT-82, "Symptom Table".
Is the causal factor identified?
YES >> GO TO 7. NO >> GO TO 9.
6.PERFORM THE SYSTEM DIAGNOSIS
Perform the diagnosis applicable to the displayed DTC. Refer to WT-79, "DTC Index".

>> GO TO 7.
7.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace the applicable part.

>> GO TO 8.
8.CHECK SELF-DIAGNOSIS RESULT
1. Erase DTCs. Refer to WT-13, "AIR PRESSURE MONITOR : Diagnosis Description". 2. Perform self-diagnosis again.
Is any DTC displayed?
YES >> GO TO 6. NO >> GO TO 9.

Revision: 2009 October

WT-4

2009 G37 Sedan

DIAGNOSIS AND REPAIR WORK FLOW

< BASIC INSPECTION >

9.FINAL CHECK A 1. Perform a cruise test.
2. Check the warning lamp for illumination or blinking.

Is the malfunction corrected?

YES >> INSPECTION END

NO >> GO TO 4.

Revision: 2009 October

WT-5

2009 G37 Sedan

INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
TRANSMITTER WAKE UP OPERATION
TRANSMITTER WAKE UP OPERATION : Description
This procedure must be done after replacement of a transmitter, BCM, or rotation of wheels.
TRANSMITTER WAKE UP OPERATION : Special Repair Requirement
1.TRANSMITTER WAKE-UP PROCEDURE
1. Turn the ignition switch ON. 2. Contact the transmitter activation tool (J-45295) (1) to the side of
the tire at the location to the transmitter. 3. Press and hold the activation tool button while pushing the tool
to the tire surface. (approximately for 5 seconds) CAUTION: Perform the wake-up procedure starting from the vehicle front left wheel, then repeat the procedure in the order of the front right wheel, rear right wheel, and rear left wheel.

INFOID:0000000004503709 INFOID:0000000004503710

NNEIC0020ZZ
4. Check that the low tire pressure warning lamp blinks in the pattern shown as per the following. The pattern indicates that the transmitter wake-up procedure for the wheel is completed.

SEIA0762E
5. Check that the turn signal lamps blink twice when the transmitter wake-up procedure for all wheels is completed.
6. Check that the low tire pressure warning lamp turns OFF, after the transmitter wake-up procedure is completed for all wheels and turns OFF.
Is the transmitter wake-up procedure completed?
YES >> Perform the transmitter ID registration procedure. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".
NO >> Perform trouble diagnosis for the transmitter. Refer to WT-19, "Diagnosis Procedure".
ID REGISTRATION PROCEDURE

ID REGISTRATION PROCEDURE : Description

INFOID:0000000004503711

This procedure must be done after replacing or rotating wheels, replacing transmitter or BCM.

ID REGISTRATION PROCEDURE : Special Repair Requirement

INFOID:0000000004503712

1.TRANSMITTER ID REGISTRATION PROCEDURE

With CONSULT-III.

Revision: 2009 October

WT-6

2009 G37 Sedan

INSPECTION AND ADJUSTMENT

< BASIC INSPECTION >

1. Display the "WORK SUPPORT" screen and select "ID REGIST".

Is the transmitter activation tool (J-45295) used for the transmitter ID registration procedure?

YES >> GO TO 2.

NO >> GO TO 3.

2.TRANSMITTER ID REGISTRATION PROCEDURE (WITH TRANSMITTER ACTIVATION TOOL)

1. Turn the ignition switch ON.

2. Select the start button on the "ID REGIST" screen. 3. Contact the transmitter activation tool (J-45295) (1) to the side of

the tire at the location to the transmitter.

4. Press and hold the activation tool button while pushing the tool

to the tire surface. (approximately for 5 seconds)

CAUTION:

Perform the ID registration procedure starting from the

vehicle front left wheel, then repeat the procedure in the order of the front right wheel, rear right wheel, and rear left

wheel.

F
NNEIC0020ZZ

5. When ID registration is completed, check the following pattern at each wheel.

Sequence
1 2 3 4

ID registration position
Front left wheel Front right wheel Rear right wheel Rear left wheel

Turn signal lamp 2 blinks

CONSULT-III
H

"Red"

"Green"

6. After the ID registration procedure for all wheels is completed, press "END" to end ID registration, and

check that ID registration for all wheels is completed.

Is the check result normal?

YES >> ID registration END. NO >> Performs trouble-diagnosis of the Tire Pressure Monitoring System (TPMS). Refer to WT-19, K
"Diagnosis Procedure".
3.TRANSMITTER ID REGISTRATION PROCEDURE (WITHOUT TRANSMITTER ACTIVATION TOOL) L 1. Adjust the tire pressure for all wheels to match the list below.

Tire position Front LH

Tire pressure kPa (kg/cm2, psi)

240 (2.4, 35)

Front RH Rear RH

220 (2.2, 31)

200 (2.0, 29)

Rear LH

180 (1.8, 26)

2. Drive the vehicle at a speed at more than 40 km/h (25 MPH) for 3 minutes or more, then perform the O transmitter ID registration procedure.
3. After ID registration for all wheels is completed, press "END" to end ID registration.

ID registration position

CONSULT-III

Front LH Front RH Rear RH Rear LH

"Red"
"Green"

4. Adjust the tire pressures for all wheels to the specified value. Refer to WT-103, "Tire".

Revision: 2009 October

WT-7

2009 G37 Sedan

INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >
Is ID registrations for all wheels completed?
YES >> ID registration END. NO >> Performs trouble-diagnosis of the Tire Pressure Monitoring System (TPMS). Refer to WT-19,
"Diagnosis Procedure".

Revision: 2009 October

WT-8

2009 G37 Sedan

< SYSTEM DESCRIPTION >
SYSTEM DESCRIPTION
TPMS
System Diagram

TPMS

INFOID:0000000004503713

System Description

JPEIC0054GB

INFOID:0000000004503714

DESCRIPTION

During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from transmitter G installed in each wheel. The BCM (Body Control Module) of this system has pressure judgment and trouble

diagnosis functions. When the tire pressure monitoring system detects low inflation pressure or another

unusual symptom, the low tire pressure warning lamps in the combination meter comes on.

Revision: 2009 October

WT-9

2009 G37 Sedan

< SYSTEM DESCRIPTION >
Component Parts Location

TPMS

INFOID:0000000004503970

1. Transmitter 4. Tire pressure warning check switch A. Wheel D. Behind instrument lower panel LH
Component Description

2. BCM 5. Low tire pressure warning lamp B. Dash side lower (passenger side) E. Inside combination meter

JSEIA0071ZZ
3. Tire pressure receiver C. Instrument lower panel RH
INFOID:0000000004503716

Component parts BCM (Body Control Module) Transmitter Tire pressure receiver Tire pressure warning check switch Turn signal lamp

Function WT-33, "Description". WT-19, "Description". WT-35, "Description". WT-37, "Description". ID registration of each wheel has been completed, turn signal lamp flashes.

Revision: 2009 October

WT-10

2009 G37 Sedan

< SYSTEM DESCRIPTION >

TPMS

Component parts

Function

A
Transmits the vehicle speed signal via CAN communication to BCM.

Receives the following signals via CAN communication for BCM.

Unified meter and A/C amp.

· Low tire pressure warning lamp signal

· Hazard lamp signal

· Buzzer signal

Low tire pressure warning lamp

Illuminates if malfunction is detected in electrical system of TPMS.

Revision: 2009 October

WT-11

2009 G37 Sedan

DIAGNOSIS SYSTEM (BCM)
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

INFOID:0000000004503904

APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.

Diagnosis mode Work Support Self Diagnostic Result
CAN Diag Support Monitor
Data Monitor Active Test Ecu Identification
Configuration

Function Description Changes the setting for each system function. Displays the diagnosis results judged by BCM. Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III operation manual. The BCM input/output signals are displayed. The signals used to activate each device are forcibly supplied from BCM. The BCM part number is displayed. · Read and save the vehicle specification. · Write the vehicle specification when replacing BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system. NOTE: It can perform the diagnosis modes except the following for all sub system selection items.

×: Applicable item

System

Sub system selection item

Diagnosis mode Work Support Data Monitor

Active Test

Door lock

DOOR LOCK

Rear window defogger

REAR DEFOGGER

Warning chime

BUZZER

Interior room lamp timer

INT LAMP

Exterior lamp

HEAD LAMP

Wiper and washer

WIPER

Turn signal and hazard warning lamps FLASHER

AIR CONDITONER*

· Intelligent Key system · Engine start system

INTELLIGENT KEY

Combination switch

COMB SW

Body control system

BCM

IVIS - NATS

IMMU

Interior room lamp battery saver

BATTERY SAVER

Trunk lid open

TRUNK

Vehicle security system

THEFT ALM

RAP system

RETAINED PWR

Signal buffer system

SIGNAL BUFFER

TPMS

TPMS (AIR PRESSURE MONITOR)

NOTE: *: This item is displayed, but is not used.

FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on CONSULT-III.

Revision: 2009 October

WT-12

2009 G37 Sedan

DIAGNOSIS SYSTEM (BCM)
< SYSTEM DESCRIPTION >

CONSULT screen item Indication/Unit

Description

Vehicle Speed

km/h

Vehicle speed of the moment a particular DTC is detected

Odo/Trip Meter

Total mileage (Odometer value) of the moment a particular DTC is detected

SLEEP>LOCK

While turning BCM status from low power consumption mode to

normal mode (Power supply position is "LOCK")

SLEEP>OFF

While turning BCM status from low power consumption mode to

normal mode (Power supply position is "OFF".)

LOCK>ACC

While turning power supply position from "LOCK" to "ACC"

ACC>ON RUN>ACC

While turning power supply position from "ACC" to "IGN"
D
While turning power supply position from "RUN" to "ACC" (Vehicle
is stopping and selector lever is except P position.)

CRANK>RUN

While turning power supply position from "CRANKING" to "RUN" (From cranking up the engine to run it)

RUN>URGENT ACC>OFF

While turning power supply position from "RUN" to "ACC" (Emer-
gency stop operation)
F
While turning power supply position from "ACC" to "OFF"

Vehicle Condition

OFF>LOCK

While turning power supply position from "OFF" to "LOCK"

OFF>ACC

Power position status of the moment a particular

While turning power supply position from "OFF" to "ACC"

ON>CRANK DTC is detected

While turning power supply position from "IGN" to "CRANKING"

OFF>SLEEP

While turning BCM status from normal mode (Power supply posi-

tion is "OFF".) to low power consumption mode

LOCK>SLEEP LOCK

While turning BCM status from normal mode (Power supply position is "LOCK".) to low power consumption mode
Power supply position is "LOCK" (Ignition switch OFF with steer- I
ing is locked.)

OFF

Power supply position is "OFF" (Ignition switch OFF with steering

is unlocked.)

ACC

Power supply position is "ACC" (Ignition switch ACC)

Power supply position is "IGN" (Ignition switch ON with engine

stopped)

ENGINE RUN CRANKING

Power supply position is "RUN" (Ignition switch ON with engine running)

Power supply position is "CRANKING" (At engine cranking)

IGN Counter

0 - 39

The number of times that ignition switch is turned ON after DTC is detected

· The number is 0 when a malfunction is detected now.

· The number increases like 1 2 3...38 39 after returning to the normal condition

whenever ignition switch OFF ON.

· The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

AIR PRESSURE MONITOR

AIR PRESSURE MONITOR : Diagnosis Description

INFOID:0000000004503905

O
DESCRIPTION

During driving, the TPMS receives the signal transmitted from the transmitter installed in each wheel, when

the tire pressure becomes low. The control unit (BCM) of this system has pressure judgment and trouble diag-

nosis functions.

When the TPMS detects low inflation pressure or another unusual symptom, the low tire pressure warning

lamps in the combination meter comes on.

SELF DIAGNOSTIC PROCEDURE (WITH CONSULT-III)
With CONSULT-III Touch "SELF-DIAG RESULT" display shows malfunction experienced since the last erasing operation. Refer to WT-79, "DTC Index".

Revision: 2009 October

WT-13

2009 G37 Sedan

DIAGNOSIS SYSTEM (BCM)
< SYSTEM DESCRIPTION >
SELF DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)
Without CONSULT-III To start the self-diagnostic results mode, ground terminal of the tire pressure warning check connector. The malfunction location is indicated by the low tire pressure warning lamp blinking.

JPEIC0030GB
NOTE: When the low tire pressure warning lamp blinks 5 Hz and continues repeating it, the system is normal.

Blinking pattern
15
16
17 18 21 22 23 24 31
32
33
34
35
36
37
38

Items

Diagnostic items detected when···

Check item

Tire pressure value (Front LH)
Tire pressure value (Front RH)
Tire pressure value (Rear RH)
Tire pressure value (Rear LH) Transmitter no data (Front LH) Transmitter no data (Front RH) Transmitter no data (Rear RH) Transmitter no data (Rear LH) Transmitter checksum error (Front LH) Transmitter checksum error (Front RH) Transmitter checksum error (Rear RH) Transmitter checksum error (Rear LH) Transmitter pressure data error (Front LH) Transmitter pressure data error (Front RH) Transmitter pressure data error (Rear RH) Transmitter pressure data error (Rear LH)

Front LH tire pressure drops to * kPa (* bar, * kg/cm2, * psi) or less. [NOTE] Front RH tire pressure drops to * kPa (* bar, * kg/cm2, * psi) or less. [NOTE] Rear RH tire pressure drops to * kPa (* bar, * kg/cm2, * psi) or less. [NOTE] Rear LH tire pressure drops to * kPa (* bar, * kg/cm2, * psi) or less. [NOTE] Data from front LH transmitter can not be receive. Data from front RH transmitter can not be receive. Data from rear RH transmitter can not be receive. Data from rear LH transmitter can not be receive. Checksum data from front LH transmitter is malfunctioning.
Checksum data from front RH transmitter is malfunctioning.
Checksum data from rear RH transmitter is malfunctioning.
Checksum data from rear LH transmitter is malfunctioning.
Air pressure data from front LH transmitter is malfunction.
Air pressure data from front RH transmitter is malfunction.
Air pressure data from rear RH transmitter is malfunction.
Air pressure data from rear LH transmitter is malfunction.

WT-17 WT-19 WT-21 WT-24

Revision: 2009 October

WT-14

2009 G37 Sedan

DIAGNOSIS SYSTEM (BCM)
< SYSTEM DESCRIPTION >

Blinking pattern

Items

Diagnostic items detected when···

Check item A

Transmitter function code error (Front LH)

Function code data from front LH transmitter is malfunction.

Transmitter function code error (Front RH)

Function code data from front RH transmitter is malfunction.

Transmitter function code error (Rear RH)

Function code data from rear RH transmitter is malfunction.

B
WT-26
C

Transmitter function code error (Rear LH)

Function code data from rear LH transmitter is malfunction.

Transmitter battery voltage low (Front LH)

Battery voltage of front LH transmitter drops.

Transmitter battery voltage low (Front RH)

Battery voltage of front RH transmitter drops.

Transmitter battery voltage low (Rear RH)

Battery voltage of rear RH transmitter drops.

WT-29 WT

Transmitter battery voltage low (Rear LH)

Battery voltage of rear LH transmitter drops.

Vehicle speed signal error

Control unit

Vehicle speed signal error. Tire pressure monitoring system malfunction in BCM.

WT-32

WT-33

No blinking

Tire pressure warning check switch

Tire pressure warning switch circuit is open.

NOTE: 182.7 kPa (1.827 bar, 1.9 kg/cm2, 26 psi): Standard air pressure is for 230 kPa (2.3 bar, 2.3 kg/cm2, 33 psi) vehicles.

ERASE SELF-DIAGNOSIS

With CONSULT-III

1. Perform applicable inspection of malfunctioning item and then repair or replace.

2. Turn ignition switch ON and select "SELF-DIAG RESULTS" mode for "AIR PRESSURE MONITOR" with

CONSULT-III.

3. Touch "ERASE" on CONSULT-III screen to erase memory.

Without CONSULT-III · In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is K
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. · However, this information is erased by turning ignition switch OFF after performing self-diagnostic or by L erasing the memory using the CONSULT-III.

AIR PRESSURE MONITOR : CONSULT-III Function (BCM - AIR PRESSURE MONI-

TOR)

M
INFOID:0000000004503906

WORK SUPPORT MODE

ID Read The registered ID number is displayed.

ID Regist Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

SELF-DIAG RESULTS MODE

Operation Procedure Refer to WT-79, "DTC Index".

DATA MONITOR MODE
Screen of data monitor mode is displayed. NOTE: When malfunction is detected, CONSULT-III perform REAL-TIME DIAGNOSIS. Also, any malfunction detected while in this mode will be displayed at real time.

Revision: 2009 October

WT-15

N O P
2009 G37 Sedan

DIAGNOSIS SYSTEM (BCM)
< SYSTEM DESCRIPTION >

Monitor item (Unit)

Remark

AIR PRESS FL (kPa//kg/cm2/Psi)

AIR PRESS FR (kPa//kg/cm2/Psi) AIR PRESS RR (kPa//kg/cm2/Psi)

Tire pressure

AIR PRESS RL (kPa//kg/cm2/Psi)

ID REGST FL1 (Green/Red)

ID REGST FR1 (Green/Red) ID REGST RR1 (Green/Red)

Registration ID

ID REGST RL1 (Green/Red)

WARNING LAMP (On/Off)

Low tire pressure warning lamp

BUZZER (On/Off)

Buzzer in combination meter

NOTE: Before performing the self-diagnosis, be sure to register the ID, or erase the actual malfunction location may be different from that displayed on CONSULT-III.

ACTIVE TEST MODE
NOTE: Before performing the self-diagnosis, be sure to register the ID, or erase the actual malfunction may be different from that displayed on CONSULT-III.

TEST ITEM LIST

Test item WARNING LAMP
ID REGIST WARNING
FLASHER HORN

Content This test is able to check to check that the low tire pressure warning lamp turns on. This test is able to check to check that the buzzer sounds or the low tire pressure warning lamp turns on. This test is able to check to check that each turn signal lamp turns on. This test is able to check to check that the horn sounds.

Revision: 2009 October

WT-16

2009 G37 Sedan

C1704, C1705, C1706, C1707 LOW TIRE PRESSURE
< DTC/CIRCUIT DIAGNOSIS >
DTC/CIRCUIT DIAGNOSIS A
C1704, C1705, C1706, C1707 LOW TIRE PRESSURE

Description

INFOID:0000000004503720

When the tire pressure monitoring system detects low inflation pressure, the low tire pressure warning lamps

in the combination meter comes on.
DTC Logic

C
INFOID:0000000004503721

DTC DETECTION LOGIC

DTC

Display item

Malfunction detected condition

Possible cause

C1704 LOW PRESSURE FL Front LH tire pressure drops to * kPa (* kg/cm2, * psi) or less. [NOTE]

C1705 LOW PRESSURE FR Front RH tire pressure drops to * kPa (* kg/cm2, * psi) or less. [NOTE]

Low tire pressure

C1706 LOW PRESSURE RR Rear RH tire pressure drops to * kPa (* kg/cm2, * psi) or less. [NOTE]

C1707 LOW PRESSURE RL Rear LH tire pressure drops to * kPa (* kg/cm2, * psi) or less. [NOTE]

*: 182.7 kPa (1.9 kg/cm2, 26 psi): Standard air pressure is for 230 kPa (2.3 kg/cm2, 33 psi) vehicles.
G

DTC CONFIRMATION PROCEDURE

1.DTC REPRODUCTION PROCEDURE

With CONSULT-III

1. Drive at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.

2. Perform BCM self-diagnosis.

Is DTC "C1704", "C1705", "C1706", "C1707" detected?

YES >> Perform trouble diagnosis. Refer to WT-17, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

INFOID:0000000004503722

1.CHECK TIRE AIR PRESSURE

1. Check the all tire air pressures.

2. Adjust all tire air pressures. Refer to WT-103, "Tire".

Does all tire pressure data meet the specification?

YES >> GO TO 2.

NO >> Inspect or replace malfunctioning parts.

2.CHECK AIR PRESSURE SIGNAL

1. Start the engine.

2. Select "DATA MONITOR" mode for "AIR PRESSURE MONITOR" with CONSULT-III.

3. Read out the value of "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR", "AIR PRESS RL".

Monitored item

Condition

Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or more for Approximately equal to the indication on

several minutes.

vehicle information display.

AIR PRESS RL

Is inspection result normal?
YES >> INSPECTION END NO >> Repair or replace damaged parts (tire or wheel). Refer to WT-94, "Service Notice or Precautions".

Revision: 2009 October

WT-17

2009 G37 Sedan

C1704, C1705, C1706, C1707 LOW TIRE PRESSURE
< DTC/CIRCUIT DIAGNOSIS >
Special Repair Requirement

INFOID:0000000004503723

1.CHECK TIRE AIR PRESSURE

Check all tire air pressures. Refer to WT-103, "Tire".
Does all tire pressure data meet the specification?
YES >> GO TO 2. NO >> Inspect or repair the tires or wheels and adjust the tire pressure to the specification.
2.PERFORM ID REGISTRATION

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END

Revision: 2009 October

WT-18

2009 G37 Sedan

C1708, C1709, C1710, C1711 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
C1708, C1709, C1710, C1711 TRANSMITTER
Description

A
INFOID:0000000004503724

The transmitter integrated with a valve is installed on a wheel, and transmits a detected tire pressure signal by B radio wave.

DTC Logic
DTC DETECTION LOGIC

INFOID:0000000004503725
C

DTC

Display item

Malfunction detected condition

Possible cause

C1708

[NO DATA] FL

Data from front LH transmitter cannot received.

· Harness or connector

C1709

[NO DATA] FR

Data from front RH transmitter cannot received.

(Tire pressure receiver, BCM)

· ID registration is not finished

C1710

[NO DATA] RR

Data from rear RH transmitter cannot received.

· Transmitter malfunction

C1711

[NO DATA] RL

Data from rear LH transmitter cannot received.

· BCM malfunction

DTC CONFIRMATION PROCEDURE

1.DTC REPRODUCTION PROCEDURE

With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes. 2. Perform BCM self-diagnosis.
Is DTC "C1708", "C1709", "C1710", "C1711" detected?
YES >> Perform trouble diagnosis. Refer to WT-19, "Diagnosis Procedure". NO >> INSPECTION END
Diagnosis Procedure

G H

INFOID:0000000004503726

1.CHECK AIR PRESSURE SIGNAL

J With CONSULT-III

1. Start the engine.

2. Select "DATA MONITOR" mode for "AIR PRESSURE MONITOR" with CONSULT-III.

3. Read out the value of "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR", "AIR PRESS RL".

Monitored item AIR PRESS FL

Condition

Display value
L

AIR PRESS FR AIR PRESS RR AIR PRESS RL

Start the engine and drive at a 40 km/h (25 MPH) or more for Approximately equal to the indication on

several minutes.

vehicle information display.

Are all tire pressures displayed 0 kPa?

YES >> GO TO 2.

NO >> GO TO 4.

2.CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER

1. Turn the ignition switch OFF.

2. Disconnect BCM harness connector and tire pressure receiver harness connector.

3. Check the continuity between BCM harness connector and tire pressure receiver harness connector.

Connector

BCM

Terminal 137

Tire pressure receiver

Connector

Terminal

Continuity

M123

138

M101

Existed

139

Revision: 2009 October

WT-19

2009 G37 Sedan

C1708, C1709, C1710, C1711 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS > 4. Check the continuity between BCM harness connector and ground.

BCM

Connector

Terminal

137

M123

138

139

Is the inspection result normal?
YES >> GO TO 3. NO >> Repair or replace damaged parts.
3.CHECK TIRE PRESSURE RECEIVER

-- Ground

Continuity Not existed

Check tire pressure receiver. Refer to WT-35, "Diagnosis Procedure".
Is the inspection result normal?
YES >> Check the BCM pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
NO >> Replace the tire pressure receiver.
4.CHECK ID REGISTRATION

Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".
Can ID registration of all transmitters be completed?
YES >> GO TO 5. NO >> Replace malfunctioning transmitter.
5.CHECK TIRE PRESSURE MONITORING SYSTEM

With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 2. Check the all tire pressures with CONSULT-III "DATA MONITOR" within 15 minutes after stopped vehicle.

Monitored item

Condition

Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at 40 km/h (25MPH) or more Approximately equal to the indication on vehicle

for several minutes.

information display.

AIR PRESS RL
Is the inspection result normal? YES >> INSPECTION END NO >> Replace BCM.

Special Repair Requirement

INFOID:0000000004503727

1.CHECK TIRE AIR PRESSURE

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END

Revision: 2009 October

WT-20

2009 G37 Sedan

C1712, C1713, C1714, C1715 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
C1712, C1713, C1714, C1715 TRANSMITTER
Description

A
INFOID:0000000004503728

The transmitter integrated with a valve is installed on a wheel, and transmits a detected tire pressure signal by B radio wave.

DTC Logic
DTC DETECTION LOGIC

INFOID:0000000004503729
C

DTC

Display item

Malfunction detected condition

Possible case

C1712 C1713 C1714 C1715

[CHECKSUM ERR] FL

Checksum data from front LH transmitter is malfunctioning.

[CHECKSUM ERR] FR

Checksum data from front RH transmitter is malfunctioning.

· Tire pressure receiver malfunc- WT
tion

· Transmitter malfunction

[CHECKSUM ERR] RR

Checksum data from rear RH transmitter is malfunctioning.

· BCM malfunction · Harness or connector

[CHECKSUM ERR] RL

Checksum data from rear LH transmitter is malfunctioning.

DTC CONFIRMATION PROCEDURE

1.DTC REPRODUCTION PROCEDURE

With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 2. Perform BCM self-diagnosis.
Is DTC "C1712", "C1713", "C1714", "C1715" detected?
YES >> Perform trouble diagnosis. Refer to WT-21, "Diagnosis Procedure". NO >> INSPECTION END
Diagnosis Procedure

H
I
J
INFOID:0000000004503730

1.CHECK ID REGISTRATION K

With CONSULT-III

1. Perform the ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special

Repair Requirement". 2. Drive at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.

3. Check all tire pressure with CONSULT-III "DATA MONITOR" within 5 minutes.

Monitored item

Condition

M
Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or Approximately equal to the indication on vehicle N

more for 10 minutes.

information display.

AIR PRESS RL

Is the inspection result normal?

YES >> GO TO 6.

NO >> GO TO 2.

2.CHECK AIR PRESSURE SIGNAL

With CONSULT-III 1. Start the engine. 2. Select "DATA MONITOR" mode for "AIR PRESSURE MONITOR" with CONSULT-III. 3. Read out the value of "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR" and "AIR PRESS RL".

Revision: 2009 October

WT-21

2009 G37 Sedan

C1712, C1713, C1714, C1715 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >

Monitored item

Condition

Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or more for several minutes.

Approximately equal to the indication on vehicle information display.

AIR PRESS RL

Are all tire pressures displayed 0 kPa?
YES >> GO TO 3. NO >> GO TO 5.
3.CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER

1. Turn the ignition switch OFF. 2. Disconnect BCM harness connector and tire pressure receiver harness connector. 3. Check the continuity between BCM harness connector and tire pressure receiver harness connector.

BCM

Tire pressure receiver

Connector

Terminal

Connector

Terminal

137

M123

138

M101

139

4. Check the continuity between BCM harness connector and ground.

Continuity Existed

BCM

Connector

Terminal

137

M123

138

139

Is the inspection result normal?
YES >> GO TO 4. NO >> Repair or replace damaged parts.
4.CHECK TIRE PRESSURE RECEIVER

-- Ground

Continuity Not existed

Check the tire pressure receiver. Refer to WT-35, "Diagnosis Procedure".
Is the inspection result normal?
YES >> Check BCM pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
NO >> Replace the tire pressure receiver.
5.CHECK ID REGISTRATION

Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".
Can ID registration of all transmitters be completed?
YES >> GO TO 6. NO >> Replace malfunctioning transmitter.
6.CHECK TIRE PRESSURE MONITORING SYSTEM

With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 2. Check the all tire pressure with CONSULT-III "DATA MONITOR" within 15 minutes after stopped vehicle.

Revision: 2009 October

WT-22

2009 G37 Sedan

C1712, C1713, C1714, C1715 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >

Monitored item

Condition

Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or more for several minutes.

AIR PRESS RL

Is the inspection result normal?
YES >> INSPECTION END NO >> Replace BCM. Refer to BCS-82, "Exploded View".

Special Repair Requirement

Approximately equal to the indication on vehicle B
information display.
C
D
INFOID:0000000004503731

1.CHECK TIRE AIR PRESSURE WT Check all tire air pressures. Refer to WT-103, "Tire".

Does all tire pressure data meet the specification?

YES >> GO TO 2.

NO >> Inspect or repair the tires or wheels and adjust the tire pressure to the specification.

2.PERFORM ID REGISTRATION

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END

Revision: 2009 October

WT-23

2009 G37 Sedan

C1716, C1717, C1718, C1719 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
C1716, C1717, C1718, C1719 TRANSMITTER

Description

INFOID:0000000004503732

The transmitter integrated with a valve is installed on a wheel, and transmits a detected tire pressure signal by radio wave.

DTC Logic

INFOID:0000000004503733

DTC DETECTION LOGIC

DTC C1716 C1717 C1718 C1719

Display item [PRESSDATA ERR] FL [PRESSDATA ERR] FR [PRESSDATA ERR] RR [PRESSDATA ERR] RL

Malfunction detected condition Air pressure data from front LH transmitter is malfunction. Air pressure data from front RH transmitter is malfunction. Air pressure data from rear RH transmitter is malfunction. Air pressure data from rear LH transmitter is malfunction.

Possible case
· ID registration is not finished
· Transmitter malfunction

DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE

With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes. 2. Perform BCM self- diagnosis.
Is DTC "C1716", "C1717", "C1718", "C1719" detected?
YES >> Perform trouble diagnosis. Refer to WT-24, "Diagnosis Procedure". NO >> INSPECTION END
Diagnosis Procedure

INFOID:0000000004503734

1.CHECK TIRE PRESSURE

With CONSULT-III 1. Adjust tire pressure to specified value. Refer to WT-103, "Tire". 2. Perform the ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special
Repair Requirement". 3. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 4. Check the all tire pressure with CONSULT-III "DATA MONITOR" within 15 minutes after stopped vehicle.

Monitored item

Condition

Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or Approximately equal to the indication on vehicle

more for several minutes.

information display.

AIR PRESS RL

Is tire pressure indicated as 438.60 kPa (4.47kg/cm2, 63.60 psi) on the "DATA MONITOR" screen?
YES >> Replace malfunctioning transmitter. NO >> GO TO 2.
2.CHECK TIRE PRESSURE MONITORING SYSTEM

With CONSULT-III 1. Perform the ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special
Repair Requirement". 2. Drive at a speed of 40 km/h (25 MPH) or more for 10 minutes. 3. Check the all tire pressures with CONSULT-III "DATA MONITOR" within 5 minutes.

Revision: 2009 October

WT-24

2009 G37 Sedan

C1716, C1717, C1718, C1719 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >

Monitored item

Condition

Display value

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or Approximately equal to the indication on vehicle

more for 10 minutes.

information display.

AIR PRESS RL

Is the inspection result normal?

YES >> INSPECTION END

NO >> Perform the self-diagnosis, inspect detected malfunction. Refer to WT-13, "AIR PRESSURE

MONITOR : Diagnosis Description".

Component Inspection

INFOID:0000000004503735

1.CHECK TRANSMITTER

With CONSULT-III 1. Adjust tire pressure to specified value. Refer to WT-103, "Tire". 2. Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special F
Repair Requirement". 3. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 4. Check the all tire pressure with CONSULT-III "DATA MONITOR" within 15 minutes after stopped vehicle. G

Monitored item

Condition

Display value

AIR PRESSURE FL AIR PRESSURE FR AIR PRESSURE RR AIR PRESSURE RL

Start the engine and drive at a 40 km/h (25 MPH) Approximately equal to the indication on vehicle in-

or more for several minutes.

formation display.

Is tire pressure indicated as 438.60 kPa (4.47 kg/cm2, 63.60 psi) on the "DATA MONITOR" screen?

YES >> Replace malfunctioning transmitter.

NO >> INSPECTION END

Special Repair Requirement
1.CHECK TIRE AIR PRESSURE

INFOID:0000000004503736
K

Check all tire air pressures. Refer to WT-103, "Tire". L
Does all tire pressure data meet the specification?

YES >> GO TO 2.

NO >> Inspect or repair the tires or wheels and adjust the tire pressure to the specification.

2.PERFORM ID REGISTRATION

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement". N

>> END

Revision: 2009 October

WT-25

2009 G37 Sedan

C1720, C1721, C1722, C1723 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
C1720, C1721, C1722, C1723 TRANSMITTER

Description

INFOID:0000000004503737

The transmitter integrated with a valve is installed on a wheel, and transmits a detected tire pressure signal by radio wave.

DTC Logic

INFOID:0000000004503738

DTC DETECTION LOGIC

DTC C1720 C1721 C1722 C1723

Display item [CODE ERR] FL [CODE ERR] FR [CODE ERR] RR [CODE ERR] RL

Malfunction detected condition

Possible case

Function code data from front LH transmitter is malfunctioning. Function code data from front RH transmitter is malfunctioning. Function code data from rear RH transmitter is malfunctioning. Function code data from rear LH transmitter is malfunctioning.

· Tire pressure receiver malfunction
· Transmitter malfunction · BCM malfunction · Harness or connector

DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE

With CONSULT-III 1. Driving at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes. 2. Perform BCM self-diagnosis.
Is DTC "C1720", "C1721", "C1722", "C1723" detected?
YES >> Perform trouble diagnosis. Refer to WT-26, "Diagnosis Procedure". NO >> INSPECTION END
Diagnosis Procedure

INFOID:0000000004503739

1.CHECK ID REGISTRATION

With CONSULT-III 1. Perform the ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special
Repair Requirement". 2. Drive at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes. 3. Check all tire pressure with CONSULT-III "DATA MONITOR" within 5 minutes.

Monitored item

Condition

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or more for 10 minutes.

AIR PRESS RL

Is the inspection result normal?
YES >> GO TO 6. NO >> GO TO 2.
2.CHECK ALL TIRE PRESSURE SIGNAL

Display value
Approximately equal to the indication on vehicle information display.

Revision: 2009 October

WT-26

2009 G37 Sedan

C1720, C1721, C1722, C1723 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >

Monitored item AIR PRESS FL

Condition

Display value

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or Approximately equal to the indication on vehicle

more for several minutes.

information display.

AIR PRESS RL

Are all tire pressure displayed 0 kPa?

YES >> GO TO 3.

NO >> GO TO 5.

3.CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER

1. Turn the ignition switch "OFF".

2. Disconnect BCM harness connector and tire pressure receiver harness connector.

3. Check continuity between BCM harness connector and tire pressure receiver harness connector.

Connector

BCM

Terminal

Tire pressure receiver

Connector

Terminal

Continuity

137

M123

138

M101

139

Existed

4. Check continuity between BCM harness connector and ground.

BCM

Connector

Terminal

137

H
Continuity
I

M123

138

Ground

Not existed

139

Is the inspection result normal?

YES >> GO TO 4.

NO >> Repair or replace damage parts.

4.CHECK TIRE PRESSURE RECEIVER

Check tire pressure receiver. Refer to WT-35, "Diagnosis Procedure".

Is the inspection result normal?

YES >> Check BCM pin terminals for damage or loose connection with harness connector. If any items

are damaged, repair or replace damaged parts. NO >> Replace the tire pressure receiver.

5.CHECK TIRE PRESSURE MONITORING SYSTEM

With CONSULT-III

1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.

2. Check all tire pressures with CONSULT-III "DATA MONITOR" within 15 minutes after stopped vehicle.

Monitored item

Condition

O
Display value

AIR PRESS FL AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or Approximately equal to the indication on vehicle

more for several minutes.

information display.

AIR PRESS RL

Is the inspection result normal?
YES >> GO TO 6. NO >> Replace BCM. Refer to BCS-82, "Exploded View".

Revision: 2009 October

WT-27

2009 G37 Sedan

C1720, C1721, C1722, C1723 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
6.CHECK TRANSMITTER
With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 2. Check all tire pressures with CONSULT-III "DATA MONITOR" within 5 minutes after stopped vehicle.

Monitored item

Condition

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or more for several minutes.

AIR PRESS RL

Is the inspection result normal?
YES >> INSPECTION END NO >> Replace malfunction transmitter.

Display value
Approximately equal to the indication on vehicle information display.

Special Repair Requirement

INFOID:0000000004503740

1.CHECK TIRE AIR PRESSURE

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END

Revision: 2009 October

WT-28

2009 G37 Sedan

C1724, C1725, C1726, C1727 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
C1724, C1725, C1726, C1727 TRANSMITTER
Description

A
INFOID:0000000004503741

The transmitter integrated with a valve is installed on a wheel, and transmits a detected tire pressure signal by B radio wave.

DTC Logic
DTC DETECTION LOGIC

INFOID:0000000004503742
C

DTC C1724 C1725 C1726 C1727

Display item [BATT VOLT LOW] FL [BATT VOLT LOW] FR [BATT VOLT LOW] RR [BATT VOLT LOW] RL

Malfunction detected condition Battery voltage of front LH transmitter drops. Battery voltage of front RH transmitter drops. Battery voltage of rear RH transmitter drops. Battery voltage of rear LH transmitter drops.

Possible case

· Transmitter malfunction

· Tire pressure receiver mal-

function

· BCM malfunction

· Harness or connector

DTC CONFIRMATION PROCEDURE

1.DTC REPRODUCTION PROCEDURE

With CONSULT-III 1. Driving at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes. 2. Perform BCM self-diagnosis.
Is DTC "C1724", "C1725", "C1726", "C1727" detected?
YES >> Perform trouble diagnosis. Refer to WT-29, "Diagnosis Procedure". NO >> INSPECTION END
Diagnosis Procedure

G H

INFOID:0000000004503743

1.CHECK ID REGISTRATION

J With CONSULT-III

1. Perform the ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special

Repair Requirement".

2. Drive at a 40 km/h (25 MPH) or more, then drive normally for 10 minutes.

3. Check all tire pressure with CONSULT-III "DATA MONITOR" within 5 minutes.

Can ID registration of all transmitters be completed?

YES >> GO TO 2.

NO >> GO TO 4.

2.CHECK AIR PRESSURE SIGNAL M

With CONSULT-III

1. Start the engine.

2. Select "DATA MONITOR" mode for "AIR PRESSURE MONITOR" with CONSULT-III. 3. Read out the value of "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR" and "AIR PRESS RL".

Monitored item AIR PRESS FL

Condition

Display value
O

AIR PRESS FR AIR PRESS RR AIR PRESS RL

Start the engine and drive at a 40 km/h (25 MPH) or Approximately equal to the indication on vehicle

more for several minutes.

information display.

Are all tire pressures displayed 0 kPa?
YES >> GO TO 3. NO >> GO TO 5.
3.CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER

1. Turn the ignition switch OFF.

Revision: 2009 October

WT-29

2009 G37 Sedan

C1724, C1725, C1726, C1727 TRANSMITTER
< DTC/CIRCUIT DIAGNOSIS >
2. Disconnect BCM harness connector and tire pressure receiver harness connector. 3. Check the continuity between BCM harness connector and tire pressure receiver harness connector.

BCM

Tire pressure receiver

Connector

Terminal

Connector

Terminal

137

M123

138

M101

139

4. Check continuity between BCM harness connector and ground.

Continuity Existed

BCM

Connector

Terminal

137

M123

138

139

Is the inspection result normal?
YES >> GO TO 4. NO >> Repair or replace damaged parts.
4.CHECK TIRE PRESSURE RECEIVER

-- Ground

Continuity Not existed

Check the tire pressure receiver. Refer to WT-35, "Diagnosis Procedure".
Is the inspection result normal?
YES >> Check the BCM pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
NO >> Replace the tire pressure receiver.
5.CHECK ID REGISTRATION

Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".
Can ID registration of all transmitters be completed?
YES >> GO TO 6. NO >> Replace malfunctioning transmitter.
6.CHECK TIRE PRESSURE MONITORING SYSTEM

Monitored item

Condition

AIR PRESS FL

AIR PRESS FR AIR PRESS RR

Start the engine and drive at a 40 km/h (25 MPH) or more for several minutes.

AIR PRESS RL

Is the inspection result normal?
YES >> INSPECTION END NO >> Replace BCM. Refer to BCS-82, "Exploded View".

Special Repair Requirement

1.CHECK TIRE AIR PRESSURE
Check all tire air pressures. Refer to WT-103, "Tire". Does all tire pressure data meet the specification?

Display value Approximately equal to the indication on vehicle information display.
INFOID:0000000004503744

Revision: 2009 October

WT-30

2009 G37 Sedan

C1724, C1725, C1726, C1727 TRANSMITTER

< DTC/CIRCUIT DIAGNOSIS >

YES >> GO TO 2.

NO >> Inspect or repair the tires or wheels and adjust the tire pressure to the specification.

2.PERFORM ID REGISTRATION

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END C

Revision: 2009 October

WT-31

2009 G37 Sedan

C1729 VEHICLE SPEED SIGNAL
< DTC/CIRCUIT DIAGNOSIS >
C1729 VEHICLE SPEED SIGNAL
Description
BCM detects no vehicle speed signal.
DTC Logic
DTC DETECTION LOGIC

INFOID:0000000004503745 INFOID:0000000004503746

DTC number

Trouble diagnosis name

DTC detecting condition

C1729 VHCL SPEED SIG ERR Vehicle speed signal error.

Possible case
· CAN communication error · Unified meter and A/C amp. mal-
function

DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE

With CONSULT-III 1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping. 2. Perform BCM self-diagnosis.
Is DTC "C1729" detected?
YES >> Perform trouble diagnosis. Refer to WT-32, "Diagnosis Procedure". NO >> INSPECTION END
Diagnosis Procedure

INFOID:0000000004503747

1.CHECK UNIFIED METER AND A/C AMP. SELF-DIAGNOSIS

With CONSULT-III Perform unified meter and A/C amp. self-diagnosis. Is any DTC detected?
YES >> Check the DTC. NO >> Check unified meter and A/C amp. MWI-83, "Reference Value".
Special Repair Requirement

INFOID:0000000004503748

1.CHECK TIRE AIR PRESSURE

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END

Revision: 2009 October

WT-32

2009 G37 Sedan

< DTC/CIRCUIT DIAGNOSIS >
C1734 BCM
Description

C1734 BCM

A
INFOID:0000000004503749

The BCM reads the tire pressure signal received by the tire pressure receiver, and controls the low tire pres- B sure warning lamp and the buzzer operations. It also has a judgment function to detect a system malfunction.

DTC Logic
DTC DETECTION LOGIC

INFOID:0000000004503750
C

DTC

Display item

Malfunction detected condition

Possible case

C1734

CONTROL UNIT

Tire pressure monitoring system malfunction in BCM

BCM malfunction

DTC CONFIRMATION PROCEDURE

1.DTC REPRODUCTION PROCEDURE

With CONSULT-III

1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.

2. Perform BCM self-diagnosis with CONSULT-III "DATA MONITOR" within 15 minutes after stopped vehicle.

Is DTC "C1734" detected?

YES >> Perform trouble diagnosis. Refer to WT-33, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure
1.CHECK SELF-DIAGNOSTIC RESULTS

INFOID:0000000004503751

With CONSULT-III

1. On "SELECT DIAG" mode, select the "SELF-DIAG RESULT" screen.

2. Check display contents in self-diagnostic results.

Does self-diagnostic results indicate any malfunction?

YES >> Perform trouble diagnosis. Refer to WT-79, "DTC Index".

NO >> GO TO 2.

2.CHECK BCM POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect BCM harness connector.

3. Check voltage between BCM harness connector terminals and ground.

BCM

Connector

Terminal

Voltage

M118

M119

Is the power supply normal?

Ground

Battery voltage
N

YES >> GO TO 3.

NO >> Check the following. If any items are damaged, repair or replace damage parts.

· 40A fusible link [No. K located in the fuse block]. Refer to PG-96, "Fuse and Fusible Link

Arrangement".

· 10A fuse [No. 10 located in the fuse block (J/B)]. Refer to PG-95, "Fuse, Connector and Termi-

nal Arrangement".

· Harness for short or open between battery and BCM harness connector M118 terminal 1.

· Harness for short or open between battery and BCM harness connector M119 terminal 11.

· Check the Battery voltage.

3.CHECK BCM GROUND CIRCUIT

Check the continuity between BCM harness connector and ground.

Revision: 2009 October

WT-33

2009 G37 Sedan

< DTC/CIRCUIT DIAGNOSIS >

C1734 BCM

Connector

BCM

Terminal

Continuity

M119

Ground

Existed

Is the inspection result normal?
YES >> GO TO 4. NO >> Repair open circuit or short to power in harness or connectors.
4.CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER

1. Disconnect tire pressure receiver harness connector. 2. Check the continuity between BCM harness connector and tire pressure receiver harness connector.

BCM

Tire pressure receiver

Connector

Terminal

Connector

Terminal

137

M123

138

M101

139

3. Check the continuity between BCM harness connector and ground.

Continuity Existed

Connector

BCM

Terminal

Continuity

137

M123

138

Ground

Not existed

139

Is the inspection result normal?
YES >> GO TO 5. NO >> Repair or replace damaged parts.
5.CHECK BCM

Check the BCM input/output signal. Refer to WT-46, "Reference Value".
Is the inspection result normal?
YES >> INSPECTION END NO >> GO TO 6.
6.CHECK BCM HARNESS CONNECTOR

Check the BCM pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-82, "Exploded View". NO >> Repair or replace damaged parts.

Special Repair Requirement

INFOID:0000000004503752

1.CHECK TIRE AIR PRESSURE

Perform ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

>> END

Revision: 2009 October

WT-34

2009 G37 Sedan

TIRE PRESSURE RECEIVER
< DTC/CIRCUIT DIAGNOSIS >
TIRE PRESSURE RECEIVER
Description

A
INFOID:0000000004503753

The tire pressure receiver receives the tire pressure signal transmitted by the transmitter in each wheel.

Component Function Check

INFOID:0000000004503754

1.TIRE PRESSURE MONITORING SYSTEM OPERATION

With CONSULT-III

1. Drive at a speed 40 km/h (25 MPH) or more, then drive normally for 10 minutes.

2. Check tire pressure with CONSULT-III "DATA MONITOR" within 5 minutes.

Monitored item AIR PRESS FL

Condition

Display value
WT

AIR PRESS FR AIR PRESS RR AIR PRESS RL

Start engine and drive at a 40 km/h (25MPH) or Approximately equal to the indication on vehicle

more for 10 minutes.

information display.

Is the inspection result normal? YES >> INSPECTION END NO-1 >> Perform BCM self-diagnosis. Refer to WT-79, "DTC Index". NO-2 >> Perform trouble diagnosis. Refer to WT-35, "Diagnosis Procedure".
Diagnosis Procedure

G H
INFOID:0000000004503755

1.CHECK TIRE PRESSURE RECEIVER SIGNAL

I 1. Turn the ignition switch ON.

CAUTION:

Never start the engine.

2. Check tire pressure receiver connector and ground signal with oscilloscope.

Tire pressure receiver --
Connector Terminal

Condition

Voltage (Approx.)

Standby state

M101

Ground

When receiving the signal from the transmitter

L
M
OCC3881D
N
O

Is the inspection result normal?
YES >> INSPECTION END NO >> GO TO 2.
2.CHECK TIRE PRESSURE RECEIVER INPUT VOLTAGE
1. Disconnect tire pressure receiver connector. 2. Check voltage between tire pressure receiver connector and ground.

Revision: 2009 October

WT-35

OCC3880D
P 2009 G37 Sedan

TIRE PRESSURE RECEIVER
< DTC/CIRCUIT DIAGNOSIS >

Tire pressure receiver

Connector

Terminal

Voltage (Approx.)

M101

Ground

5.0 V

Is the inspection result normal?
YES >> GO TO 3. NO >> Check BCM harness and connector.
3.CHECK TIRE PRESSURE RECEIVER GROUND CIRCUIT

1. Disconnect BCM harness connector. 2. Check continuity between BCM harness connector and tire pressure receiver connector.

BCM

Tire pressure receiver

Connector

Terminal

Connector

Terminal

M123

137

M101

3. Check continuity between BCM harness connector and ground.

Continuity Existed

Connector

BCM

Terminal

Continuity

M123

137

Ground

Not existed

Is the inspection result normal?
YES >> GO TO 4. NO >> Repair or replace damaged parts.
4.CHECK BCM CIRCUIT

Inspect the BCM circuit. Refer to WT-33, "Diagnosis Procedure".
Is the BCM circuit normal?
YES >> Replace tire pressure receiver. NO >> Repair or replace BCM circuit. Replace BCM. Refer to BCS-82, "Exploded View".

Revision: 2009 October

WT-36

2009 G37 Sedan

TIRE PRESSURE WARNING CHECK SWITCH
< DTC/CIRCUIT DIAGNOSIS >
TIRE PRESSURE WARNING CHECK SWITCH
Description

A
INFOID:0000000004503756

Self-diagnosis can be performed by short-circuiting the tire pressure warning check switch to the ground.(Self- B diagnosis indicates the location of the malfunction by the blinking of the low tire pressure warning lamp on the combination meter.)

NOTE:

If low tire pressure warning lamp blinks as shown in the figure, the system is normal.

· This mode shows transmitter status is in OFF-mode.

Perform transmitter wake up operation. Refer to WT-6, "TRANS-

MITTER WAKE UP OPERATION : Special Repair Requirement".

Component Function Check

JPEIC0031GB
G
INFOID:0000000004503757

1.CHECK LOW TIRE PRESSURE WARNING LAMP OPERATION

Check if low tire pressure warning lamp blinks 1 second and then goes off after turning ignition switch ON.

Is inspection result normal?

YES >> GO TO 2.

NO >> Check the low tire pressure warning lamp. Refer to WT-39, "Diagnosis Procedure".

2.CHECK TIRE PRESSURE WARNING CHECK SWITCH OPERATION J 1. Ground the tire pressure warning check switch harness connector terminal.

2. Check the low tire pressure warning lamp blinks.

Is the inspection result normal?

YES >> INSPECTION END

NO >> Perform trouble diagnosis. Refer to WT-37, "Diagnosis Procedure".

Diagnosis Procedure

INFOID:0000000004503758

1.CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY CIRCUIT

1. Turn the ignition switch ON.

CAUTION:

Never start the engine.

2. Check voltage between tire pressure warning check switch connector and ground.

Tire pressure warning check switch

Connector

Terminal

M23

-- Ground

Voltage (Approx.)
O
5 V

Is the inspection result normal?

YES >> Repair or replace BCM circuit. Replace BCM. Refer to BCS-82, "Exploded View".

NO >> GO TO 2.

2.CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

1. Turn the ignition switch OFF. 2. Disconnect BCM harness connector 3. Check the continuity between BCM harness connector and tire pressure warning check switch connector.

Revision: 2009 October

WT-37

2009 G37 Sedan

TIRE PRESSURE WARNING CHECK SWITCH
< DTC/CIRCUIT DIAGNOSIS >

BCM

Tire pressure warning check switch

Connector

Terminal

Connector

Terminal

M123

149

M23

4. Check the continuity between BCM harness connector and ground.

Continuity Existed

Connector

BCM

Terminal

Continuity

M123

149

Ground

Not existed

Is the inspection result normal?
YES >> GO TO 3. NO >> Repair or replace damaged parts.
3.CHECK BCM

Check the BCM input/output signal. Refer to WT-46, "Reference Value".

Is the inspection result normal?

YES NO

>> INSPECTION END >> Check the BCM pin terminals for damage or loose connection with harness connector. If any
items are damaged, repair or replace damaged parts. Replace BCM. Refer to BCS-82, "Exploded View".

Revision: 2009 October

WT-38

2009 G37 Sedan

LOW TIRE PRESSURE WARNING LAMP
< DTC/CIRCUIT DIAGNOSIS >
LOW TIRE PRESSURE WARNING LAMP
Description

A
INFOID:0000000004503759

The combination meter receives tire pressure status from the unified meter and A/C amp. via CAN communi- B cation. When BCM judges from a transmitter signal that tire pressure is insufficient, BCM transmits a signal to unified meter and A/C amp. via CAN communication. unified meter and A/C amp. turns on the low tire pressure warning lamp mounted on the combination meter.
C

Condition Ignition switch OFF Ignition switch ON Less than 182.7 kPa (1.9 kg/cm2, 26 psi) [NOTE] Tire pressure monitoring system malfunction [Other diagnostic item]

Low tire pressure warning lamp

OFF

Warning lamp turns on for 1second, then turns off.

Warning lamp blinks 1 min, then turns on.

NOTE: Standard air pressure is for 230 kPa (2.3 kg/cm2, 33 psi) vehicles.
Component Function Check

F
INFOID:0000000004503760

1.CHECK LOW TIRE PRESSURE WARNING LAMP

Check if low tire pressure warning lamp blinks for 1 second and then goes off after turning the ignition switch

ON.

Is inspection result normal?

YES >> INSPECTION END NO >> Perform trouble diagnosis. Refer to WT-39, "Diagnosis Procedure".
Diagnosis Procedure

I
INFOID:0000000004503761

1.CHECK SELF DIAGNOSTIC RESULTS J Perform self-diagnosis of tire pressure monitoring system.

Is inspection result normal?

YES >> GO TO 2.

NO >> Check the DTC.

2.CHECK LOW TIRE PRESSURE WARNING LAMP

Check if low tire pressure warning lamp blinks 1 second and then goes off after turning the ignition switch ON. L

Is inspection result normal?

YES >> INSPECTION END NO >> Check the combination meter.

Revision: 2009 October

WT-39

2009 G37 Sedan

POWER SUPPLY AND GROUND CIRCUIT
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
1.CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.

INFOID:0000000004503762

Signal name

Fuse and fusible link No.

K Battery power supply
10

Is the fuse fusing?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF. 2. Disconnect BCM connectors. 3. Check voltage between BCM harness connector and ground.

Terminals

(+) BCM

(-)

Voltage

(Approx.)

Connector M118 M119

Terminal 1 11

Ground

Battery voltage

Is the measurement value normal?
YES >> GO TO 3. NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

BCM

Connector

Terminal

Ground

M119

Does continuity exist?
YES >> INSPECTION END NO >> Repair harness or connector.
UNIFIED METER AND A/C AMP.

Continuity Existed

UNIFIED METER AND A/C AMP. : Diagnosis Procedure

1.CHECK FUSE
Check for blown fuses.

Power source Battery
Ignition switch ACC or ON Ignition switch ON or START

Revision: 2009 October

WT-40

Fuse No. 6 19 3

INFOID:0000000004503763
2009 G37 Sedan

POWER SUPPLY AND GROUND CIRCUIT

< DTC/CIRCUIT DIAGNOSIS >

Is the inspection result normal?

YES >> GO TO 2.

NO >> Be sure to eliminate cause of malfunction before installing new fuse.

2.CHECK POWER SUPPLY CIRCUIT B Check voltage between unified meter and A/C amp. harness connector and ground.

Unified meter and A/C amp.

Terminals

(+)

Terminal

Signal name

Battery power supply

Ignition switch position

Value (Approx.)

(-)

OFF

Battery voltage

M67

ACC power supply

Ground

ACC

Battery voltage

Ignition signal

Is the inspection result normal?

YES >> GO TO 3. NO >> Check harness between unified meter and A/C amp. and fuse.
3.CHECK GROUND CIRCUIT

Battery voltage

1. Turn ignition switch OFF.

2. Disconnect unified meter and A/C amp. connector.

3. Check continuity between unified meter and A/C amp. harness connector and ground.

Unified meter and A/C amp.

Continuity

Connector

Terminal

Ground

55 M67

Existed

Is the inspection result normal?

YES >> INSPECTION END

NO >> Repair harness or connector.

Revision: 2009 October

WT-41

2009 G37 Sedan

< DTC/CIRCUIT DIAGNOSIS >
TPMS

TPMS

Wiring Diagram - TIRE PRESSURE MONITORING SYSTEM -

INFOID:0000000004503764

Revision: 2009 October

WT-42

JCEWA0083GB
2009 G37 Sedan

< DTC/CIRCUIT DIAGNOSIS >

TPMS

Revision: 2009 October

WT-43

A B C D WT F G H I J K L M N O
JCEWA0084GB
P
2009 G37 Sedan

< DTC/CIRCUIT DIAGNOSIS >

TPMS

Revision: 2009 October

WT-44

JCEWA0085GB
2009 G37 Sedan

< DTC/CIRCUIT DIAGNOSIS >

TPMS

Revision: 2009 October

WT-45

A B C D WT F G H I J K L M N O
JCEWA0086GB
P
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >
ECU DIAGNOSIS INFORMATION
BCM (BODY CONTROL MODULE)
Reference Value

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM Monitor Item

Condition

FR WIPER HI

Other than front wiper switch HI Front wiper switch HI

FR WIPER LOW

Other than front wiper switch LO Front wiper switch LO

FR WASHER SW

Front washer switch OFF Front washer switch ON

FR WIPER INT

Other than front wiper switch INT Front wiper switch INT

FR WIPER STOP

Front wiper is not in STOP position Front wiper is in STOP position

INT VOLUME

Wiper intermittent dial is in a dial position 1 - 7

TURN SIGNAL R TURN SIGNAL L TAIL LAMP SW HI BEAM SW HEAD LAMP SW 1 HEAD LAMP SW 2 PASSING SW AUTO LIGHT SW FR FOG SW RR FOG SW DOOR SW-DR DOOR SW-AS DOOR SW-RR

Other than turn signal switch RH Turn signal switch RH Other than turn signal switch LH Turn signal switch LH Other than lighting switch 1ST and 2ND Lighting switch 1ST or 2ND Other than lighting switch HI Lighting switch HI Other than lighting switch 2ND Lighting switch 2ND Other than lighting switch 2ND Lighting switch 2ND Other than lighting switch PASS Lighting switch PASS Other than lighting switch AUTO Lighting switch AUTO Front fog lamp switch OFF Front fog lamp switch ON NOTE: The item is indicated, but not monitored. Driver door closed Driver door opened Passenger door closed Passenger door opened Rear RH door closed Rear LH door opened

Revision: 2009 October

WT-46

INFOID:0000000004503907
Value/Status Off On Off On Off On Off On Off On
Wiper intermittent dial position Off On Off On Off On Off On Off On Off On Off On Off On Off On
Off
Off On Off On Off On
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Monitor Item DOOR SW-RL

Rear LH door closed Rear LH door opened

Condition

Value/Status
A
Off
On

DOOR SW-BK

NOTE: The item is indicated, but not monitored.

Off

CDL LOCK SW

Other than power door lock switch LOCK Power door lock switch LOCK

Off

CDL UNLOCK SW KEY CYL LK-SW

Other than power door lock switch UNLOCK Power door lock switch UNLOCK Other than driver door key cylinder LOCK Driver door key cylinder LOCK

Off

KEY CYL UN-SW

Other than driver door key cylinder UNLOCK Driver door key cylinder LOCK

Off

KEY CYL SW-TR HAZARD SW REAR DEF SW

NOTE: The item is indicated, but not monitored.
Hazard switch is OFF
Hazard switch is ON
NOTE: The item is indicated, but not monitored.

Off
F
Off
On
G
Off

H/L WASH SW

NOTE: The item is indicated, but not monitored.

Off

TR CANCEL SW TR/BD OPEN SW

Trunk lid opener cancel switch OFF Trunk lid opener cancel switch ON Trunk lid opener switch OFF While the trunk lid opener switch is turned ON

Off
On
I
Off
On

TRNK/HAT MNTR

Trunk lid closed Trunk lid opened

Off

RKE-LOCK

LOCK button of the Intelligent Key is not pressed LOCK button of the Intelligent Key is pressed

Off
K
On

RKE-UNLOCK

UNLOCK button of the Intelligent Key is not pressed UNLOCK button of the Intelligent Key is pressed

Off

RKE-TR/BD RKE-PANIC

TRUNK OPEN button of the Intelligent Key is not pressed TRUNK OPEN button of the Intelligent Key is pressed PANIC button of the Intelligent Key is not pressed PANIC button of the Intelligent Key is pressed

Off

RKE-P/W OPEN

UNLOCK button of the Intelligent Key is not pressed UNLOCK button of the Intelligent Key is pressed and held

Off

RKE-MODE CHG

LOCK/UNLOCK button of the Intelligent Key is not pressed and held simultaneously

Off
O

LOCK/UNLOCK button of the Intelligent Key is pressed and held simultaneously

OPTICAL SENSOR

Bright outside of the vehicle Dark outside of the vehicle

Close to 5 V

Close to 0 V

Driver door request switch is not pressed

Off

REQ SW -DR

Driver door request switch is pressed

Passenger door request switch is not pressed

Off

REQ SW -AS

Passenger door request switch is pressed

Revision: 2009 October

WT-47

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Monitor Item REQ SW -RR REQ SW -RL REQ SW -BD/TR PUSH SW IGN RLY2 -F/B ACC RLY -F/B CLUCH SW BRAKE SW 1 BRAKE SW 2
DETE/CANCL SW
SFT PN/N SW S/L -LOCK S/L -UNLOCK S/L RELAY-F/B UNLK SEN -DR PUSH SW -IPDM IGN RLY1 -F/B DETE SW -IPDM
SFT PN -IPDM
SFT P -MET SFT N -MET

Condition NOTE: The item is indicated, but not monitored. NOTE: The item is indicated, but not monitored. Trunk lid opener request switch is not pressed Trunk lid opener request switch is pressed Push-button ignition switch (push switch) is not pressed Push-button ignition switch (push switch) is pressed Ignition switch in OFF or ACC position Ignition switch in ON position NOTE: The item is indicated, but not monitored. The clutch pedal is not depressed The clutch pedal is depressed The brake pedal is depressed when No. 7 fuse is blown The brake pedal is not depressed when No. 7 fuse is blown, or No. 7 fuse is normal The brake pedal is not depressed The brake pedal is depressed · Selector lever in P position (Except M/T models) · The clutch pedal is depressed (M/T models) · Selector lever in any position other than P (Except M/T models) · The clutch pedal is not depressed (M/T models) Selector lever in any position other than P and N Selector lever in P or N position Steering is unlocked Steering is locked Steering is locked Steering is unlocked Ignition switch in OFF or ACC position Ignition switch in ON position Driver door is unlocked Driver door is locked Push-button ignition switch (push-switch) is not pressed Push-button ignition switch (push-switch) is pressed Ignition switch in OFF or ACC position Ignition switch in ON position Selector lever in any position other than P Selector lever in P position · Selector lever in any position other than P and N (Except M/T models) · The clutch pedal is not depressed (M/T models) · Selector lever in P or N position (Except M/T models) · The clutch pedal is depressed (M/T models) Selector lever in any position other than P Selector lever in P position Selector lever in any position other than N Selector lever in N position

Revision: 2009 October

WT-48

Value/Status
Off
Off
Off On Off On Off On
Off
Off On Off
On
Off On
Off
On
Off On Off On Off On Off On Off On Off On Off On Off On
Off
On
Off On Off On
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Monitor Item ENGINE STATE
S/L LOCK-IPDM S/L UNLK-IPDM S/L RELAY-REQ VEH SPEED 1 VEH SPEED 2 DOOR STAT-DR
DOOR STAT-AS ID OK FLAG PRMT ENG STRT PRMT RKE STRT KEY SW -SLOT RKE OPE COUN1 RKE OPE COUN2 CONFRM ID ALL
CONFIRM ID4
CONFIRM ID3

Engine stopped

Condition

Value/Status
A
Stop

While the engine stalls

Stall

At engine cranking Engine running

Crank

Run

Steering is unlocked Steering is locked

Off

Steering is locked

Off

Steering is unlocked

Steering lock system is not the LOCK condition and the changing condition from LOCK to UNLOCK

Off

Steering lock system is the LOCK condition or the changing condition from LOCK to UNLOCK

While driving While driving

Equivalent to speed-
ometer reading
F
Equivalent to speed-
ometer reading

Driver door is locked Wait with selective UNLOCK operation (60 seconds)

LOCK

READY

Driver door is unlocked Passenger door is locked

UNLOCK

LOCK

Wait with selective UNLOCK operation (60 seconds)

READY

Passenger door is unlocked Steering is locked

UNLOCK
I
Reset

Steering is unlocked

Set

The engine start is prohibited

Reset

The engine start is permitted

Set

NOTE: The item is indicated, but not monitored.

Reset

The Intelligent Key is not inserted into key slot

Off

The Intelligent Key is inserted into key slot During the operation of the Intelligent Key

Operation frequency of

the Intelligent Key

NOTE: The item is indicated, but not monitored.

The key ID that the key slot receives is not recognized by any key ID registered to BCM.

Yet

The key ID that the key slot receives is recognized by any key ID registered to BCM.

Done

The key ID that the key slot receives is not recognized by the fourth key ID registered to BCM.

Yet

The key ID that the key slot receives is recognized by the fourth key ID registered to BCM.

Done

The key ID that the key slot receives is not recognized by the third key ID registered to BCM.

Yet

The key ID that the key slot receives is recognized by the third key ID registered to BCM.

Done

Revision: 2009 October

WT-49

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Monitor Item CONFIRM ID2
CONFIRM ID1
TP 4 TP 3 TP 2 TP 1 AIR PRESS FL AIR PRESS FR AIR PRESS RR AIR PRESS RL ID REGST FL1 ID REGST FR1 ID REGST RR1 ID REGST RL1 WARNING LAMP BUZZER

Condition

Value/Status

The key ID that the key slot receives is not recognized by the second key ID registered to BCM.

Yet

The key ID that the key slot receives is recognized by the second key ID registered to BCM.

Done

The key ID that the key slot receives is not recognized by the first key ID registered to BCM.

Yet

The key ID that the key slot receives is recognized by the first key ID registered to BCM.

Done

The ID of fourth Intelligent Key is not registered to BCM

Yet

The ID of fourth Intelligent Key is registered to BCM

Done

The ID of third Intelligent Key is not registered to BCM

Yet

The ID of third Intelligent Key is registered to BCM

Done

The ID of second Intelligent Key is not registered to BCM

Yet

The ID of second Intelligent Key is registered to BCM

Done

The ID of first Intelligent Key is not registered to BCM

Yet

The ID of first Intelligent Key is registered to BCM

Done

Ignition switch ON (Only when the signal from the transmitter is received)

Air pressure of front LH tire

Ignition switch ON (Only when the signal from the transmitter is received)

Air pressure of front RH tire

Ignition switch ON (Only when the signal from the transmitter is received)

Air pressure of rear RH tire

Ignition switch ON (Only when the signal from the transmitter is received)

Air pressure of rear LH tire

ID of front LH tire transmitter is registered

Done

ID of front LH tire transmitter is not registered

Yet

ID of front RH tire transmitter is registered

Done

ID of front RH tire transmitter is not registered

Yet

ID of rear RH tire transmitter is registered

Done

ID of rear RH tire transmitter is not registered

Yet

ID of rear LH tire transmitter is registered

Done

ID of rear LH tire transmitter is not registered

Yet

Tire pressure indicator OFF

Off

Tire pressure indicator ON

Tire pressure warning alarm is not sounding

Off

Tire pressure warning alarm is sounding

Revision: 2009 October

WT-50

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION > TERMINAL LAYOUT
PHYSICAL VALUES

A B C D WT F G H I J K L M N O
JPMIA0062ZZ
P

Revision: 2009 October

WT-51

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description Signal name

Input/ Output

Condition

Value (Approx.)

1 (W)

Ground Battery power supply Input Ignition switch OFF

Battery voltage

2 (Y)

Ground

P/W power supply (BAT)

Output Ignition switch OFF

12 V

3 (O)

Ground

P/W power supply (RAP)

Output Ignition switch ON

12 V

4 (LG)

Ground

Interior room lamp power supply

Interior room lamp battery saver is activated. (Cuts the interior room lamp power supply)

Output

Interior room lamp battery saver is not activated. (Outputs the interior room lamp power supply)

0 V 12 V

5 (P)

Ground

Passenger door UNLOCK

Output

Passenger door

UNLOCK (Actuator is activated)
Other than UNLOCK) Actuator is not activated

12 V 0 V

7 (BR)

Ground Step lamp

Output Step lamp

ON OFF

0 V 12 V

8 (V)

Ground

All doors, fuel lid LOCK

Output

All doors, fuel lid

LOCK (Actuator is activated)
Other than LOCK (Actuator is not activated)

12 V 0 V

9 (G)

Ground

Driver door, fuel lid UNLOCK

Output

Driver door, fuel lid

UNLOCK (Actuator is activated)
Other than UNLOCK (Actuator is not activated)

12 V 0 V

10 (BR)

Ground

Rear RH door and rear LH UNLOCK

Rear RH door Output and rear LH
door

UNLOCK (Actuator is activated)
Other than UNLOCK (Actuator is not activated)

12 V 0 V

11 (R)

Ground Battery power supply Input Ignition switch OFF

Battery voltage

13 (B)

Ground Ground

-- Ignition switch ON

0 V

OFF

0 V

Push-button ignition

(W) Ground switch illumination Output Tail lamp

ground

NOTE: When the illumination brightening/dimming level is in the neutral
position

OFF (LOCK indicator is

15 (O)

Ground ACC indicator lamp

Output Ignition switch not illuminated)

ACC

Revision: 2009 October

WT-52

JSNIA0010GB
Battery voltage 0 V
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition Turn signal switch OFF

17 (W)

Ground

Turn signal RH (Front)

Output

Ignition switch ON

Turn signal switch RH

Turn signal switch OFF

18 (O)

Ground

Turn signal LH (Front)

Output

Ignition switch ON

Turn signal switch LH

19 (V)

Ground

Room lamp timer control

Output

Interior room lamp

OFF ON Turn signal switch OFF

20 (V)

Ground

Turn signal RH (Rear)

Output

Ignition switch ON

Turn signal switch RH

23 (L)

Ground Trunk lid open

Output Trunk lid

OPEN (Trunk lid opener actuator is activated)
Other than OPEN (Trunk lid opener actuator is not activated)
Turn signal switch OFF

25 (Y)

Ground

Turn signal LH (Rear)

Output

Ignition switch ON

Turn signal switch LH

30 (P)

Ground Trunk room lamp

Output

Trunk room lamp

ON OFF

Value

(Approx.)

0 V
B

6.5 V 0 V

PKID0926E

D WT

G
PKID0926E
6.5 V

12 V

0 V

0 V
I

PKID0926E

6.5 V

12 V

0 V

0 V
N

PKID0926E

6.5 V

0 V

12 V

Revision: 2009 October

WT-53

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

When Intelligent Key is in the passenger compartment

34 (SB)

Ground

Trunk room antenna (-)

Output

Ignition switch OFF

When Intelligent Key is not in the passenger compartment

Value (Approx.)
JMKIA0062GB
JMKIA0063GB

When Intelligent Key is in the passenger compartment

35 (V)

Ground

Trunk room antenna (+)

Output

Ignition switch OFF

When Intelligent Key is not in the passenger compartment

JMKIA0062GB JMKIA0063GB

When Intelligent Key is in the antenna detection area

When the trunk

38 (B)

Ground

Rear bumper antenna (-)

lid opener reOutput quest switch is
operated with

ignition switch

OFF

When Intelligent Key is not

in the antenna detection

area

JMKIA0062GB JMKIA0063GB

Revision: 2009 October

WT-54

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

When Intelligent Key is in the antenna detection area

When the trunk

39 (W)

Ground

Rear bumper antenna (+)

lid opener reOutput quest switch is
operated with

ignition switch

OFF

When Intelligent Key is not

in the antenna detection

area

47 (Y)

Ground

Ignition relay (IPDM E/R) control

OFF or ACC Output Ignition switch
ON

50 (O)

Ground

Trunk room lamp switch

Input

Trunk room lamp switch

OFF (Trunk lid is closed)

52 (SB)

Ground Starter relay control

Ignition switch ON (A/T models)
Output
Ignition switch ON (M/T models)

ON (Trunk lid is opened)
When selector lever is in P or N position
When selector lever is not in P or N position
When the clutch pedal is depressed
When the clutch pedal is not depressed
ON (Pressed)

61 (SB)

Ground

Trunk lid opener request switch

Input

Trunk lid open-

er request switch

OFF (Not pressed)

64 (G)

Intelligent Key warnGround ing buzzer (Engine
room)

Intelligent Key Sounding Output warning buzzer
(Engine room) Not sounding

Value

(Approx.)

C
JMKIA0062GB
D

12 V 0 V

F
JMKIA0063GB
G
H

JPMIA0011GB

11.8 V

0 V

12 V

0 V
L
Battery voltage

0 V

0 V
N

JPMIA0016GB

1.0 V

0 V

12 V

Revision: 2009 October

WT-55

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition Pressed

67 (GR)

Ground

Trunk lid opener switch

Input

Trunk lid open-

er switch

Not pressed

68 (BR)

Ground Rear RH door switch

Input

Rear RH door switch

OFF (When rear RH door closes)

ON (When rear RH door opens)

OFF (When rear LH door

69 (R)

Ground Rear LH door switch

Input

Rear LH door switch

closes)

ON (When rear LH door opens)

When Intelligent Key is in the passenger compartment

72 (R)

Ground

Room antenna 2 (-) (Center console)

Output

Ignition switch OFF

When Intelligent Key is not in the passenger compartment

Value (Approx.)
0 V

11.8 V

JPMIA0011GB

11.8 V 0 V

JPMIA0011GB

11.8 V 0 V

JPMIA0011GB

JMKIA0062GB

JMKIA0063GB

Revision: 2009 October

WT-56

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

When Intelligent Key is in the passenger compartment

73 (G)

Ground

Room antenna 2 (+) (Center console)

Output

Ignition switch OFF

When Intelligent Key is not in the passenger compartment

74 (SB)

Ground

Passenger door antenna (-)

When Intelligent Key is in the antenna detection area

Output

When the passenger door request switch is operated with ignition switch OFF

When Intelligent Key is not in the antenna detection area

When Intelligent Key is in the antenna detection area

75 (BR)

Ground

Passenger door antenna (+)

Output

When the passenger door request switch is operated with ignition switch OFF

When Intelligent Key is not in the antenna detection area

Value

(Approx.)

C
JMKIA0062GB
D

F
JMKIA0063GB
G
H

I
JMKIA0062GB
J

K
JMKIA0063GB
L

N
JMKIA0062GB
O

JMKIA0063GB

Revision: 2009 October

WT-57

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

When Intelligent Key is in the antenna detection area

When the driv-

76 (V)

Ground

Driver door antenna (-)

er door request Output switch is oper-
ated with igni-

tion switch

OFF

When Intelligent Key is not

in the antenna detection

area

Value (Approx.)
JMKIA0062GB
JMKIA0063GB

77 (LG)

Ground

Driver door antenna (+)

When Intelligent Key is in the antenna detection area

Output

When the driver door request switch is operated with ignition switch OFF

When Intelligent Key is not in the antenna detection area

JMKIA0062GB JMKIA0063GB

When Intelligent Key is in the passenger compartment

78 (Y)

Ground

Room antenna 1 (-) (Instrument panel)

Output

Ignition switch OFF

When Intelligent Key is not in the passenger compartment

JMKIA0062GB JMKIA0063GB

Revision: 2009 October

WT-58

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

Value

(Approx.)

When Intelligent Key is in

the passenger compart-

ment

79 (BR)

Ground

Room antenna 1 (+) (Instrument panel)

Output

Ignition switch OFF

JMKIA0062GB
D

80 (GR)
81 (W)
82 (R)

Ground

NATS antenna amp (Built in key slot)

Ground

NATS antenna amp (Built in key slot)

Ground

Ignition relay [Fuse block (J/B)] control

When Intelligent Key is not

in the passenger compart-

ment

JMKIA0063GB

Input/ Output

During waiting

Ignition switch is pressed while inserting the Intelligent Key into the key slot.

Just after pressing ignition switch. Pointer of tester should
move.

Input/ Output

During waiting

Ignition switch is pressed while inserting the Intelligent Key into the key slot.

Just after pressing ignition switch. Pointer of tester should
move.

OFF or ACC Output Ignition switch
ON

0 V

12 V

During waiting

83 (Y)

Ground

Remote keyless entry receiver communication

Input/ Output

When operating either button on the Intelligent Key

K
JMKIA0064GB
L
M
N
JMKIA0065GB
O

Revision: 2009 October

WT-59

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

All switches OFF (Wiper intermittent dial 4)

87 (Y)

Ground

Combination switch INPUT 5

Input

Combination switch

Front fog lamp switch ON (Wiper intermittent dial 4)

Any of the conditions below with all switches OFF · Wiper intermittent dial 1 · Wiper intermittent dial 2 · Wiper intermittent dial 6 · Wiper intermittent dial 7

Value (Approx.)

1.4 V

JPMIA0041GB

1.3 V

JPMIA0037GB

1.3 V

JPMIA0040GB

Revision: 2009 October

WT-60

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

All switches OFF (Wiper intermittent dial 4)

Lighting switch HI (Wiper intermittent dial 4)

88 (O)

Ground

Combination switch INPUT 3

Input

Combination switch

Lighting switch 2ND (Wiper intermittent dial 4)

Any of the conditions below with all switches OFF · Wiper intermittent dial 1 · Wiper intermittent dial 2 · Wiper intermittent dial 3

89 (BR)
90 (P)
91 (L)

Ground

Push-button ignition switch (Push switch)

Ground CAN-L

Ground CAN-H

Input

Push-button ig- Pressed nition switch (push switch) Not pressed

Input/ Output

OFF

92 (LG)

Ground Key slot illumination

Output

Key slot illumination

Blinking

Revision: 2009 October

ON
WT-61

Value

(Approx.)

JPMIA0041GB

1.4 V

F
JPMIA0036GB
1.3 V
G
H

I
JPMIA0037GB
1.3 V
J

JPMIA0040GB

1.3 V

0 V

Battery voltage

0 V
O

6.5 V 12 V

JPMIA0015GB

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

93 (V)

Ground ON indicator lamp

Output Ignition switch

95 (O)
96 (GR)
97 (L)
98 (P)

Ground ACC relay control

Output Ignition switch

A/T shift selector (DeGround tention switch) power Output
supply

Ground

Steering lock condition No. 1

Input Steering lock

Ground

Steering lock condition No. 2

Input Steering lock

Selector lever P position switch (A/T models)

Selector lever

99 (R)*1 (BR)*2

ASCD clutch switch (M/T models without Ground ICC)

ASCD clutch Input switch

ICC clutch switch (M/ T models with ICC)

ICC clutch switch

Condition
OFF (LOCK indicator is not illuminated) ON OFF ACC or ON
--
LOCK status UNLOCK status LOCK status UNLOCK status P position Any position other than P OFF (Clutch pedal is depressed) ON (Clutch pedal is not depressed) OFF (Clutch pedal is depressed) ON (Clutch pedal is not depressed) ON (Pressed)

100 (Y)

Ground

Passenger door request switch

Input

Passenger door request switch

OFF (Not pressed)

ON (Pressed)

101 (P)

Ground

Driver door request switch

Input

Driver door request switch

OFF (Not pressed)

102 (O)

Ground

Blower fan motor relay control

Output Ignition switch

OFF or ACC ON

103 (L)

Remote keyless entry Ground receiver power sup- Output Ignition switch OFF
ply

106 (W)

Ground

Steering lock unit power supply

OFF or ACC Output Ignition switch
ON

Revision: 2009 October

WT-62

Value (Approx.)
Battery voltage 0 V 0 V 12 V
12 V
0 V 12 V 12 V 0 V 0 V 12 V
0 V
12 V
0 V
12 V 0 V

1.0 V 0 V

JPMIA0016GB

1.0 V 0 V 12 V

JPMIA0016GB

12 V

12 V 0 V

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

All switches OFF

Turn signal switch LH

107 (LG)

Ground

Combination switch INPUT 1

Input

Combination switch (Wiper intermittent dial 4)

Turn signal switch RH

Front wiper switch LO

Front washer switch ON

Value

(Approx.)

JPMIA0041GB

1.4 V

F
JPMIA0037GB
1.3 V
G
H

I
JPMIA0036GB
1.3 V
J

JPMIA0038GB

1.3 V

JPMIA0039GB

Revision: 2009 October

WT-63

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

All switches OFF (Wiper intermittent dial 4)

Lighting switch AUTO (Wiper intermittent dial 4)

108 (R)

Ground

Combination switch INPUT 4

Input

Combination switch

Lighting switch 1ST (Wiper intermittent dial 4)

Any of the conditions below with all switches OFF · Wiper intermittent dial 1 · Wiper intermittent dial 5 · Wiper intermittent dial 6

Value (Approx.)

1.4 V

JPMIA0041GB

1.3 V

JPMIA0038GB

1.3 V

JPMIA0036GB

1.3 V

JPMIA0039GB

Revision: 2009 October

WT-64

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

All switches OFF

Lighting switch PASS

109 (W)

Ground

Combination switch INPUT 2

Input

Combination switch (Wiper intermittent dial 4)

Lighting switch 2ND

Front wiper switch INT

Front wiper switch HI

110 (G)

Ground Hazard switch

Input Hazard switch OFF

Revision: 2009 October

WT-65

Value

(Approx.)

JPMIA0041GB

1.4 V

F
JPMIA0037GB
1.3 V
G
H

I
JPMIA0036GB
1.3 V
J

JPMIA0038GB

1.3 V

JPMIA0040GB

0 V

1.1 V

JPMIA0012GB

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition LOCK status

Value (Approx.)
12 V

111 (Y)

Ground

Steering lock unit communication

Input/ Output

Steering lock

LOCK or UNLOCK

113 (O)

Ground Optical sensor

114 (R)

Ground

Clutch interlock switch

116 (SB)

Ground Stop lamp switch 1

118 (BR)

Stop lamp switch 2 (Without ICC)
Ground
Stop lamp switch 2 (With ICC)

Input Input

For 15 seconds after UNLOCK

15 seconds or later after UNLOCK

Ignition switch ON

When bright outside of the vehicle
When dark outside of the vehicle

Clutch interlock switch

OFF (Clutch pedal is not depressed)
ON (Clutch pedal is depressed)

Input

Stop lamp switch

OFF (Brake pedal is not depressed)
ON (Brake pedal is depressed)

Stop lamp switch OFF (Brake pedal is not depressed) and ICC brake hold relay OFF

Stop lamp switch ON (Brake pedal is depressed) or ICC brake hold relay ON

JMKIA0066GB
12 V 0 V Close to 5 V Close to 0 V 0 V Battery voltage Battery voltage 0 V Battery voltage 0 V Battery voltage

119 (SB)

Front door lock asGround sembly driver side
(Unlock sensor)

Input Driver door

LOCK status (Unlock sensor switch OFF)

121 (SB)

Ground Key slot switch

123 (W)

Ground IGN feedback

Input Input

UNLOCK status (Unlock switch sensor ON)
When the Intelligent Key is inserted into key slot
When the Intelligent Key is not inserted into key slot
OFF or ACC Ignition switch
ON

1.1 V

JPMIA0012GB

0 V

12 V
0 V 0 V Battery voltage

Revision: 2009 October

WT-66

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

124 (LG)

Ground

Passenger door switch

Input

Passenger door switch

OFF (Door close)

ON (Door open)

129 (O)

Ground

Trunk lid opener cancel switch

Input

Trunk lid open- CANCEL er cancel switch

Value

(Approx.)

11.8 V 0 V

JPMIA0011GB
D WT

1.1 V

JPMIA0012GB

0 V

132 (V)

Ground

Power window switch communication

Input/ Output

Ignition switch ON

Ignition switch OFF or ACC ON (Tail lamps OFF)

133 (L)

Ground

Push-button ignition switch illumination

Push-button igOutput nition switch il- ON (Tail lamps ON)
lumination

JPMIA0013GB

10.2 V

12 V

9.5 V

NOTE:

The pulse width of this wave is

varied by the illumination brightening/dimming level.

134 (LG)
137 (O)
138 (V)

Ground LOCK indicator lamp

Ground

Receiver and sensor ground

Ground

Receiver and sensor power supply

OFF

Output

LOCK indicator lamp

OFF ON

Input Ignition switch ON

OFF Output Ignition switch
ACC or ON

N
JPMIA0159GB

0 V

Battery voltage

0 V

0 V
P
0 V
5.0 V

Revision: 2009 October

WT-67

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

Condition

Standby state

139 (L)

Ground

Tire pressure receiver communication

Input/ Ignition switch Output ON

When receiving the signal from the transmitter

140 (GR)

Ground

Selector lever P/N position

Input Selector lever

P or N position Except P and N positions ON

141 (R)

Ground Security indicator

Output

Security indicator

Blinking

142 (BR)

Ground

Combination switch OUTPUT 5

OFF

All switches OFF

Lighting switch 1ST

Output

Combination switch (Wiper intermittent dial 4)

Lighting switch HI Lighting switch 2ND

Turn signal switch RH

All switches OFF (Wiper intermittent dial 4)

Front wiper switch HI (Wiper intermittent dial 4)

143 (P)

Ground

Combination switch OUTPUT 1

Output

Combination switch

Any of the conditions below with all switches OFF

· Wiper intermittent dial 1

· Wiper intermittent dial 2

· Wiper intermittent dial 3

· Wiper intermittent dial 6

· Wiper intermittent dial 7

Value (Approx.)

OCC3881D

12 V 0 V 0 V

OCC3880D

11.3 V 12 V 0 V

JPMIA0014GB

10.7 V 0 V

JPMIA0031GB

10.7 V

JPMIA0032GB

Revision: 2009 October

WT-68

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Terminal No. (Wire color)

Description

Signal name

Input/ Output

144 (G)

Ground

Combination switch OUTPUT 2

Output

Combination switch

Condition
All switches OFF (Wiper intermittent dial 4) Front washer switch ON (Wiper intermittent dial 4)
Any of the conditions below with all switches OFF · Wiper intermittent dial 1 · Wiper intermittent dial 5 · Wiper intermittent dial 6

All switches OFF

Front wiper switch INT

Front wiper switch LO Combination

145 (L)

Ground

Combination switch OUTPUT 3

Output

switch (Wiper intermit-

tent dial 4)

Lighting switch AUTO

146 (SB)

Ground

Combination switch OUTPUT 4

All switches OFF

Front fog lamp switch ON

Output

Combination switch (Wiper intermittent dial 4)

Lighting switch 2ND Lighting switch PASS

Turn signal switch LH

149 (W)

Ground

Tire pressure warning check switch

Input

150 (GR)

Ground Driver door switch

Input

Driver door switch

OFF (Door close)

151 (G)

Ground

Rear window defogger relay control

· *1: A/T models · *2: M/T models

Output

Rear window defogger

ON (Door open) Active Not activated

Value

(Approx.)

0 V

10.7 V 0 V

D
JPMIA0033GB
WT

G
JPMIA0034GB
10.7 V
H
0 V
I

J
JPMIA0035GB
10.7 V
K
12 V
L

11.8 V

JPMIA0011GB

0 V

Battery voltage

Revision: 2009 October

WT-69

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >
Wiring Diagram - BCM -

INFOID:0000000004503908

Revision: 2009 October

WT-70

JCMWA3019GB
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

A B C D WT F G H I J K L M N O
JCMWA3020GB
P

Revision: 2009 October

WT-71

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Revision: 2009 October

WT-72

JCMWA3021GB
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

A B C D WT F G H I J K L M N O
JCMWA3022GB
P

Revision: 2009 October

WT-73

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Revision: 2009 October

WT-74

JCMWA3023GB
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Fail-safe
FAIL-SAFE CONTROL BY DTC
BCM performs fail-safe control when any DTC are detected.

Revision: 2009 October

WT-75

A B C D WT F G H I J K L M N O
JCMWA3024GB
P
INFOID:0000000004503909
2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Display contents of CONSULT B2013: ID DISCORD BCM-S/L B2014: CHAIN OF S/L-BCM B2190: NATS ANTENNA AMP B2191: DIFFERENCE OF KEY B2192: ID DISCORD BCM-ECM B2193: CHAIN OF BCM-ECM B2195: ANTI SCANNING

Fail-safe Inhibit engine cranking Inhibit engine cranking Inhibit engine cranking Inhibit engine cranking Inhibit engine cranking Inhibit engine cranking Inhibit engine cranking

B2557: VEHICLE SPEED

Inhibit steering lock

B2560: STARTER CONT RELAY Inhibit engine cranking

B2601: SHIFT POSITION

Inhibit steering lock

B2602: SHIFT POSITION

Inhibit steering lock

B2603: SHIFT POSI STATUS

Inhibit steering lock

B2604: PNP SW

Inhibit steering lock

B2605: PNP SW

Inhibit steering lock

B2606: S/L RELAY

Inhibit engine cranking

Cancellation
Erase DTC
Erase DTC
Erase DTC
Erase DTC
Erase DTC
Erase DTC
Ignition switch ON OFF
When normal vehicle speed signals are received from ABS actuator and electric unit (control unit) for 500 ms
500 ms after the following CAN signal communication status becomes consistent · Starter control relay signal · Starter relay status signal
500 ms after the following signal reception status becomes consistent · Selector lever P position switch signal · P range signal (CAN)
5 seconds after the following BCM recognition conditions are fulfilled · Ignition switch is in the ON position · Selector lever P position switch signal: Except P position (battery
voltage) · Vehicle speed: 4 km/h (2.5 MPH) or more
500 ms after the following BCM recognition conditions are fulfilled · Ignition switch is in the ON position · Selector lever P position switch signal: Except P position (battery
voltage) · Selector lever P/N position signal: Except P and N positions (0 V)
500 ms after any of the following BCM recognition conditions are fulfilled · Status 1 - Ignition switch is in the ON position - Selector lever P/N position signal: P and N position (battery volt-
age) - P range signal or N range signal (CAN): ON · Status 2 - Ignition switch is in the ON position - Selector lever P/N position signal: Except P and N positions (0 V) - P range signal and N range signal (CAN): OFF
500 ms after any of the following BCM recognition conditions are fulfilled · Status 1 - Ignition switch is in the ON position - Selector lever P/N position signal: Except P and N positions (0 V) - Interlock/PNP switch signal (CAN): OFF · Status 2 - Ignition switch is in the ON position - Selector lever P/N position signal: P or N position (battery volt-
age) - PNP switch signal (CAN): ON
500 ms after the following CAN signal communication status becomes consistent · Steering lock relay signal (Request signal) · Steering lock relay signal (Condition signal)

Revision: 2009 October

WT-76

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Display contents of CONSULT

Fail-safe

B2607: S/L RELAY

Inhibit engine cranking

B2608: STARTER RELAY

Inhibit engine cranking

Cancellation

A
500 ms after the following CAN signal communication status has

becomes consistent

· Steering lock relay signal (Request signal)

· Steering lock relay signal (Condition signal)

500 ms after the following signal communication status becomes

consistent

· Starter motor relay control signal · Starter relay status signal (CAN)

When the following steering lock conditions agree

B2609: S/L STATUS

· Inhibit engine cranking · Inhibit steering lock

· BCM steering lock control status · Steering lock condition No. 1 signal status

· Steering lock condition No. 2 signal status

B260A: IGNITION RELAY

Inhibit engine cranking

500 ms after the following conditions are fulfilled

· IGN relay (IPDM E/R) control signal: OFF (Battery voltage)

· Ignition ON signal (CAN to IPDM E/R): OFF (Request signal)

· Ignition ON signal (CAN from IPDM E/R): OFF (Condition signal)

B260F: ENG STATE SIG LOST

Maintains the power supply When any of the following conditions are fulfilled position attained at the time · Power position changes to ACC

of DTC detection

· Receives engine status signal (CAN)

B2612: S/L STATUS

When any of the following conditions are fulfilled

· Inhibit engine cranking · Inhibit steering lock

· Steering lock unit status signal (CAN) is received normally · The BCM steering lock control status matches the steering lock
status recognized by the steering lock unit status signal (CAN

from IPDM E/R)

B2617: STARTER RELAY CIRC Inhibit engine cranking

1 second after the starter motor relay control inside BCM becomes normal

B2618: BCM

Inhibit engine cranking

1 second after the ignition relay (IPDM E/R) control inside BCM be-

comes normal

B2619: BCM B261E: VEHICLE TYPE

Inhibit engine cranking Inhibit engine cranking

1 second after the steering lock unit power supply output control inside BCM becomes normal
J
BCM initialization

B26E8: CLUTCH SW

Inhibit engine cranking

When any of the following BCM recognition conditions are fulfilled

· Status 1 - Clutch switch signal (CAN from ECM): ON

- Clutch interlock switch signal: OFF (0 V)

· Status 2

- Clutch switch signal (CAN from ECM): OFF

- Clutch interlock switch signal: ON (Battery voltage)

B26E9: S/L STATUS

· Inhibit engine cranking · Inhibit steering lock

When BCM transmits the LOCK request signal to steering lock unit,

and receives LOCK response signal from steering lock unit, the fol-

lowing conditions are fulfilled

· Steering condition No. 1 signal: LOCK (0 V)

· Steering condition No. 2 signal: LOCK (Battery voltage)

HIGH FLASHER OPERATION

BCM detects the turn signal lamp circuit status by the current value.

BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal

lamp operating.

NOTE:

The blinking speed is normal while activating the hazard warning lamp.

DTC Inspection Priority Chart

INFOID:0000000004503910

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.

Revision: 2009 October

WT-77

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Priority 1 2 3
4

B2562: LOW VOLTAGE
· U1000: CAN COMM · U1010: CONTROL UNIT(CAN)
· B2190: NATS ANTENNA AMP · B2191: DIFFERENCE OF KEY · B2192: ID DISCORD BCM-ECM · B2193: CHAIN OF BCM-ECM · B2195: ANTI SCANNING
· B2013: ID DISCORD BCM-S/L · B2014: CHAIN OF S/L-BCM · B2553: IGNITION RELAY · B2555: STOP LAMP · B2556: PUSH-BTN IGN SW · B2557: VEHICLE SPEED · B2560: STARTER CONT RELAY · B2601: SHIFT POSITION · B2602: SHIFT POSITION · B2603: SHIFT POSI STATUS · B2604: PNP SW · B2605: PNP SW · B2606: S/L RELAY · B2607: S/L RELAY · B2608: STARTER RELAY · B2609: S/L STATUS · B260A: IGNITION RELAY · B260B: STEERING LOCK UNIT · B260C: STEERING LOCK UNIT · B260D: STEERING LOCK UNIT · B260F: ENG STATE SIG LOST · B2612: S/L STATUS · B2614: ACC RELAY CIRC · B2615: BLOWER RELAY CIRC · B2616: IGN RELAY CIRC · B2617: STARTER RELAY CIRC · B2618: BCM · B2619: BCM · B261A: PUSH-BTN IGN SW · B261E: VEHICLE TYPE · B26E8: CLUTCH SW · B26E9: S/L STATUS · B26EA: KEY REGISTRATION · C1729: VHCL SPEED SIG ERR · U0415: VEHICLE SPEED SIG

DTC

Revision: 2009 October

WT-78

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

Priority

DTC

A
· C1704: LOW PRESSURE FL

· C1705: LOW PRESSURE FR

· C1706: LOW PRESSURE RR

· C1707: LOW PRESSURE RL

· C1708: [NO DATA] FL

· C1709: [NO DATA] FR

· C1710: [NO DATA] RR

· C1711: [NO DATA] RL

· C1712: [CHECKSUM ERR] FL

· C1713: [CHECKSUM ERR] FR

· C1714: [CHECKSUM ERR] RR

· C1715: [CHECKSUM ERR] RL

· C1716: [PRESSDATA ERR] FL

· C1717: [PRESSDATA ERR] FR

· C1718: [PRESSDATA ERR] RR · C1719: [PRESSDATA ERR] RL

· C1720: [CODE ERR] FL

· C1721: [CODE ERR] FR

· C1722: [CODE ERR] RR

· C1723: [CODE ERR] RL

· C1724: [BATT VOLT LOW] FL

· C1725: [BATT VOLT LOW] FR

· C1726: [BATT VOLT LOW] RR

· C1727: [BATT VOLT LOW] RL

· C1734: CONTROL UNIT

· B2621: INSIDE ANTENNA

· B2622: INSIDE ANTENNA

· B2623: INSIDE ANTENNA

DTC Index

INFOID:0000000004503911

NOTE:

The details of time display are as follows. · CRNT: A malfunction is detected now.

· PAST: A malfunction was detected in the past.

IGN counter is displayed on Freeze Frame Data. For details of Freeze Frame Data, refer to WT-12, "COM-

MON ITEM : CONSULT-III Function (BCM - COMMON ITEM)".

CONSULT display
No DTC is detected. further testing may be required. U1000: CAN COMM U1010: CONTROL UNIT(CAN) U0415: VEHICLE SPEED SIG B2013: ID DISCORD BCM-S/L B2014: CHAIN OF S/L-BCM B2190: NATS ANTENNA AMP B2191: DIFFERENCE OF KEY B2192: ID DISCORD BCM-ECM B2193: CHAIN OF BCM-ECM B2195: ANTI SCANNING B2553: IGNITION RELAY B2555: STOP LAMP

Fail-safe
--
-- -- -- × × × × × × × -- --

Freeze Frame Data ·Vehicle Speed ·Odo/Trip Meter
·Vehicle condition

Intelligent Key warning lamp ON

Tire pressure monitor warning
lamp ON

Reference page

BCS-35

BCS-36

BCS-37

SEC-55

SEC-56

SEC-47

SEC-50

SEC-51

SEC-53

SEC-54

PCS-49

SEC-59

Revision: 2009 October

WT-79

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

CONSULT display
B2556: PUSH-BTN IGN SW B2557: VEHICLE SPEED B2560: STARTER CONT RELAY B2562: LOW VOLTAGE B2601: SHIFT POSITION B2602: SHIFT POSITION B2603: SHIFT POSI STATUS B2604: PNP SW B2605: PNP SW B2606: S/L RELAY B2607: S/L RELAY B2608: STARTER RELAY B2609: S/L STATUS B260A: IGNITION RELAY B260B: STEERING LOCK UNIT B260C: STEERING LOCK UNIT B260D: STEERING LOCK UNIT B260F: ENG STATE SIG LOST B2612: S/L STATUS B2614: ACC RELAY CIRC B2615: BLOWER RELAY CIRC B2616: IGN RELAY CIRC B2617: STARTER RELAY CIRC B2618: BCM B2619: BCM B261A: PUSH-BTN IGN SW
B261E: VEHICLE TYPE
B2621: INSIDE ANTENNA B2622: INSIDE ANTENNA B2623: INSIDE ANTENNA B26E8: CLUTCH SW
B26E9: S/L STATUS
B26EA: KEY REGISTRATION
C1704: LOW PRESSURE FL C1705: LOW PRESSURE FR C1706: LOW PRESSURE RR C1707: LOW PRESSURE RL

Fail-safe
-- × × -- × × × × × × × × × × -- -- -- × × -- -- -- × × × --
×
-- -- -- ×
×
--
-- -- -- --

Freeze Frame Data ·Vehicle Speed ·Odo/Trip Meter
·Vehicle condition × × × × × × × × × × × × × × × × × × × × × × × × × ×
×
× × × ×
×
×
-- -- -- --

Intelligent Key warning lamp ON
× × × -- × × × × × × × × × × × × × × × × × × × × × × × (Turn ON for 15 seconds) -- -- -- × × (Turn ON for 15 seconds) × (Turn ON for 15 seconds) -- -- -- --

Tire pressure monitor warning
lamp ON
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
--
-- -- -- --
--
--
× × × ×

Reference page
SEC-61 SEC-63 SEC-64 BCS-38 SEC-65 SEC-68 SEC-70 SEC-73 SEC-75 SEC-77 SEC-78 SEC-80 SEC-82 PCS-51 SEC-86 SEC-87 SEC-88 SEC-89 SEC-94 PCS-53 PCS-55 PCS-57 SEC-98 PCS-59 SEC-100 PCS-60
SEC-101
DLK-59 DLK-61 DLK-63 SEC-90
SEC-92
SEC-93
WT-17

Revision: 2009 October

WT-80

2009 G37 Sedan

BCM (BODY CONTROL MODULE)
< ECU DIAGNOSIS INFORMATION >

CONSULT display
C1708: [NO DATA] FL C1709: [NO DATA] FR C1710: [NO DATA] RR C1711: [NO DATA] RL C1712: [CHECKSUM ERR] FL C1713: [CHECKSUM ERR] FR C1714: [CHECKSUM ERR] RR C1715: [CHECKSUM ERR] RL C1716: [PRESSDATA ERR] FL C1717: [PRESSDATA ERR] FR C1718: [PRESSDATA ERR] RR C1719: [PRESSDATA ERR] RL C1720: [CODE ERR] FL C1721: [CODE ERR] FR C1722: [CODE ERR] RR C1723: [CODE ERR] RL C1724: [BATT VOLT LOW] FL C1725: [BATT VOLT LOW] FR C1726: [BATT VOLT LOW] RR C1727: [BATT VOLT LOW] RL C1729: VHCL SPEED SIG ERR C1734: CONTROL UNIT

Fail-safe
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

Freeze Frame Data ·Vehicle Speed ·Odo/Trip Meter
·Vehicle condition -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

Intelligent Key warning lamp ON
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

Tire pressure monitor warning
lamp ON
× × × × × × × × × × × × × × × × × × × × × ×

Refer-

ence page

B
WT-19
C

WT-21

WT
WT-24
F

G
WT-26

WT-29
I

WT-32

WT-33

Revision: 2009 October

WT-81

2009 G37 Sedan

< SYMPTOM DIAGNOSIS >
SYMPTOM DIAGNOSIS
TPMS
Symptom Table

TPMS

LOW TIRE PRESSURE WARNING LAMP SYMPTOM CHART

INFOID:0000000004503771

Revision: 2009 October

WT-82

2009 G37 Sedan

< SYMPTOM DIAGNOSIS >

TPMS

Diagnosis items

Symptom (Ignition switch
ON)

Low tire pressure warning lamp

Cause

A
Action

The low tire pressure warning lamp illuminates for 1 second, then turns OFF.

Wake-up operation for

all transmitters at wheels is completed.

No system malfunctions

SEIA0592E

The low tire pressure warning lamp repeats blinking ON for 2 seconds and OFF for 0.2 seconds.

SEIA0593E

Perform the wake-up oper-

Wake-up operation for all transmitters at wheels is not completed.

ation for all transmitters at wheels. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION : Special

Repair Requirement".

The low tire pressure warning lamp blinks once.

Low tire pressure warning lamp

The low tire pressure warning lamp repeats blinking twice.

Perform the wake-up operation for the transmitter at

The front left transmitter is not activated.

front left wheel. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION :

Special Repair Require-

ment".

SEIA0594E

Perform the wake-up oper-

ation for the transmitter at

The front right transmitter is not activated.

front right wheel. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION :

Special Repair Require-

SEIA0595E

ment".

The low tire pressure warning lamp repeats blinking for 3 times.
The low tire pressure warning lamp repeats blinking for 4 times.
The low tire pressure warning lamp turns ON and stays illuminated.
Revision: 2009 October

SEIA0596E
SEIA0597E
SEIA0598E
WT-83

Perform the wake-up oper-

ation for the transmitter at

The rear right transmitter is not activated.

rear right wheel. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION :

Special Repair Require-

ment".

Perform the wake-up oper-

ation for the transmitter at

The rear left transmitter is not activated.

rear left wheel. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION :

Special Repair Require-

ment".

Low tire pressure

Check with CONSULT-III the tire pressure values. Refer to WT-15, "AIR PRESSURE MONITOR : CONSULT-III Function (BCM - AIR PRESSURE MONITOR)".

2009 G37 Sedan

< SYMPTOM DIAGNOSIS >

TPMS

Diagnosis items

Symptom (Ignition switch
ON)

Low tire pressure warning lamp

Cause

Action

The combination meter Check and install the com-

fuse is open or removed bination meter fuse. If nec-

(or pulled out).

essary, replace the fuse.

Low tire pressure warning lamp

The low tire pressure warning lamp repeats blinking at 0.5-second intervals for 1 minute, and then stays illuminated.

SEIA0788E

The low tire pressure warning control unit harness connector is removed.

Check the connection conditions of the low tire pressure warning control unit harness connector, and repair if necessary.

Tire Pressure Monitoring System (TPMS) malfunction.

· Perform CONSULT-III self-diagnosis. Refer to WT-15, "AIR PRESSURE MONITOR : CONSULT-III Function (BCM AIR PRESSURE MONITOR)".
· If necessary, perform transmitter ID registration. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".

Turn signal lamp

The turn signal lamps do not blink twice when the transmitter is activated. Or the buzzer does not sound.

1. 2. 3. 4.

The transmitter activation tool (J-

45295) does not

activate. The ignition switch

is OFF when the

transmitter wake-

up operation is per-

formed. The transmitter ac-

tivation tool (J-

45295) is not used

in the correct posi-

tion.

The transmitter is already waked up.

Replace the battery in the transmitter activation tool (J-45295). Turn the ignition switch ON when performing the transmitter wake-up operation. Operate the transmitter activation tool (J45295) in the correct position when performing the wake-up operation. No procedure.

NOTE: If transmitter wake-up operation is not completed for two or more transmitters, the applicable low tire pressure warning lamp blinking patterns are displayed continuously. (Example: Blinks once/OFF/blinks 3 times = Wake-up operation is not completed at the front left wheel and rear right wheel transmitters.)

Revision: 2009 October

WT-84

2009 G37 Sedan

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

< SYMPTOM DIAGNOSIS >

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000004503772

DESCRIPTION

The low tire pressure warning lamp illuminates for approximately 1 second and then turns OFF when the igni-

tion switch is turned ON. This is to check that no abnormal condition is present in the tire pressure monitoring

system.

The lamp bulb may be burnt out or the tire pressure monitoring system may be malfunctioning if the low tire

pressure warning lamp does not illuminate when the ignition switch is turned ON.

Diagnosis Procedure

INFOID:0000000004503773

1.CHECK SELF-DIAGNOSIS RESULTS

With CONSULT-III

1. On the "SELECT DIAG" mode, select the "SELF-DIAG RESULTS" screen.

2. Check the display contents in self-diagnostic results.

Is "CAN COMM CIRCUIT" displayed in the self-diagnosis display items?

YES >> Perform trouble diagnosis for CAN communication system. Refer to LAN-19, "Trouble Diagnosis

Flow Chart".

NO >> GO TO 2.

2.CHECK COMBINATION METER

Check the combination meter function. Refer to MWI-38, "CONSULT-III Function (METER/M&A)".

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace damaged parts.
3.CHECK LOW TIRE PRESSURE WARNING LAMP

1. Turn the ignition switch OFF.

2. Disconnect BCM harness connectors.

3. Turn the ignition switch ON.

CAUTION:

Never start the engine.

Does low tire pressure warning lamp turn ON?

YES >> GO TO 4.

NO >> Check the combination meter and repair or replace. Refer to MWI-36, "Diagnosis Description".

4.CHECK SYMPTOM

Check the symptom again.

Is the inspection result normal?

YES >> INSPECTION END

NO >> GO TO 5.

5.CHECK BCM

Check the BCM input/output signal. Refer to WT-46, "Reference Value".

Is the inspection result normal?

YES >> GO TO 4.

NO >> GO TO 6.

6.CHECK BCM HARNESS CONNECTOR

Check the BCM pin terminals for damage or loose connection with harness connector.
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-82, "Exploded View". NO >> Repair or replace damaged parts.

Revision: 2009 October

WT-85

2009 G37 Sedan

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF
< SYMPTOM DIAGNOSIS >
LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

Description

INFOID:0000000004503774

DESCRIPTION
The tire pressure monitoring system is checked and the warning lamp is illuminated for approximately 1 second when the ignition switch is turned ON. The low tire pressure warning lamp turns OFF after the system check finishes. The system may be malfunctioning if the low tire pressure warning lamp does not turn off approximately 1 second after the ignition switch is turned ON.

Diagnosis Procedure

INFOID:0000000004503775

1.CHECK SYSTEM FOR BCM

With CONSULT-III 1. On "SELF-DIAG" mode, select the "SELF-DIAG RESULTS" screen. 2. Check the display contents in self-diagnostic results.
Does self-diagnostic results indicate any malfunction?
YES >> Perform trouble diagnosis. Refer to WT-15, "AIR PRESSURE MONITOR : CONSULT-III Function (BCM - AIR PRESSURE MONITOR)".
NO >> GO TO 2.
2.CHECK ID REGISTRATION

Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".
Does low tire pressure warning lamp turn OFF?
YES >> INSPECTION END NO >> GO TO 3.
3.CHECK BCM POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF. 2. Disconnect BCM harness connector. 3. Check the voltage between BCM harness connector and ground.

Connector

BCM

Terminal

Voltage (Approx.)

M118 M119

Ground

Battery voltage

Is the inspection result normal?
YES >> GO TO 4. NO >> Check the following. If any items are damaged, repair or replace damaged parts.
· 40 A fusible link [No. K located in the fuse block]. Refer to PG-96, "Fuse and Fusible Link Arrangement".
· 10 A fuse [No. 10 located in the fuse block (J/B)]. Refer to PG-95, "Fuse, Connector and Terminal Arrangement".
· Harness for short or open between battery and BCM harness connector M118 terminal 1. · Harness for short or open between battery and BCM harness connector M119 terminal 11. · Check the battery voltage.
4.CHECK BCM GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

BCM Connector
M119
Is the inspection result normal?
Revision: 2009 October

Terminal 13
WT-86

-- Ground

Continuity Existed
2009 G37 Sedan

LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF

< SYMPTOM DIAGNOSIS >

YES >> GO TO 5.

NO >> Repair or replace damaged parts.

5.CHECK SYMPTOM

Check the symptom again.

Is the inspection result normal?

YES >> INSPECTION END

NO >> GO TO 6.
6.CHECK BCM

Check the BCM input/output signal. Refer to WT-46, "Reference Value".

Is the inspection result normal?

YES >> GO TO 5.

NO >> GO TO 7.

7.CHECK BCM HARNESS CONNECTOR

Check the BCM pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES >> Replace BCM. Refer to BCS-82, "Exploded View".

NO >> Repair or replace damaged parts.

Revision: 2009 October

WT-87

2009 G37 Sedan

LOW TIRE PRESSURE WARNING LAMP BLINKS
< SYMPTOM DIAGNOSIS >
LOW TIRE PRESSURE WARNING LAMP BLINKS
Description

INFOID:0000000004503776

DESCRIPTION
The low tire pressure warning lamp illuminates or blinks. However, a check is necessary because the symptom may not be caused by a system malfunction. For example, the transmitter may not be initialized. NOTE: If low tire pressure warning lamp blinks as shown in the figure, the system is normal.
Blink Mode A · This mode shows transmitter status is in OFF- mode.
Perform transmitter wake up operation. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION : Special Repair Requirement".

Diagnosis Procedure
1.CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY
1. Turn the ignition switch ON. CAUTION: Never start the engine.
2. Check voltage between tire pressure warning check switch connector and ground.

JPEIC0031GB INFOID:0000000004503777

Tire pressure warning check switch

Connector

Terminal

Voltage (Approx.)

M23

Ground

5 V

Is the inspection result normal?
YES >> GO TO 2. NO >> Riper or replace error-detected damaged parts.
2.CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

1. Turn the ignition switch OFF. 2. Disconnect BCM harness connector. 3. Check the continuity between BCM harness connector and tire pressure warning check switch connector.

BCM

Tire pressure warning check switch

Connector

Terminal

Connector

Terminal

M123

149

M23

4. Check the continuity between BCM harness connector and ground.

BCM

Connector

Terminal

M123

149

Is the inspection result normal?
YES >> GO TO 3. NO >> Riper or replace error-detected damaged parts.

-- Ground

Continuity Existed
Continuity Not existed

Revision: 2009 October

WT-88

2009 G37 Sedan

LOW TIRE PRESSURE WARNING LAMP BLINKS

< SYMPTOM DIAGNOSIS >

3.CHECK BCM A Check the BCM input/output signal. Refer to WT-46, "Reference Value".

Is the inspection result normal?

YES >> Check the tire pressure warning check switch. Refer to WT-37, "Diagnosis Procedure".

NO >> Repair or replace the BCM.

Revision: 2009 October

WT-89

2009 G37 Sedan

TURN SIGNAL LAMP BLINKS
< SYMPTOM DIAGNOSIS >
TURN SIGNAL LAMP BLINKS
Description
DESCRIPTION
The turn signal lamp blinks when the ignition switch is turned ON. The BCM connector or circuit may have a malfunction.
Diagnosis Procedure
1.CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY CIRCUIT
1. Turn the ignition switch ON. CAUTION: Never start the engine.
2. Check voltage between tire pressure warning check switch connector and ground.

INFOID:0000000004503778 INFOID:0000000004503779

Tire pressure warning check switch

Connector

Terminal

Voltage (Approx.)

M23

Ground

5 V

Is the inspection result normal?
YES >> GO TO 2. NO >> Repair or replace damaged parts.
2.CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT

1. Turn the ignition switch OFF. 2. Disconnect BCM harness connector. 3. Check the continuity between BCM harness connector and tire pressure warning check switch connector.

BCM

Tire pressure warning check switch

Connector

Terminal

Connector

Terminal

M123

149

M23

4. Check the continuity between BCM harness connector and ground.

Continuity Existed

Connector

BCM

Terminal

Continuity

M123

149

Ground

Not existed

Is the inspection result normal?
YES >> Check the turn signal lamp operation. Refer to BCS-31, "SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)".
NO >> Repair or replace damaged parts.

Revision: 2009 October

WT-90

2009 G37 Sedan

ID REGISTRATION CANNOT BE COMPLETED
< SYMPTOM DIAGNOSIS >
ID REGISTRATION CANNOT BE COMPLETED
Description

A
INFOID:0000000004503780

DESCRIPTION

The ID of the transmitter installed in each wheel cannot be registered in the tire pressure monitoring system.

Inspect the transmitter or the tire pressure monitoring system circuit.

Diagnosis Procedure

C
INFOID:0000000004503781

1.CHECK ID REGISTRATION

D 1. Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special

Repair Requirement".

2. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for

10 minutes.

3. Check the all tire pressures with CONSULT-III "DATA MONITOR" within 5 minutes.

Monitored item AIR PRESS FL

Condition

Display value

AIR PRESS FR AIR PRESS RR

Start the engine and drive at 40 km/h (25 MPH) or more Approximately equal to the indication on vehicle

for several minutes.

information display.

AIR PRESS RL

Is the inspection result normal?

YES >> INSPECTION END

NO >> GO TO 2.

2.CHECK TRANSMITTER

1. Perform trouble diagnosis for transmitters. Refer to WT-19, "Diagnosis Procedure".

2. Perform ID registration of all transmitters. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special

Repair Requirement".

Can ID registration of all transmitters be completed?

YES >> INSPECTION END

NO >> Replace the transmitter. Refer to WT-100, "Exploded View".

Revision: 2009 October

WT-91

2009 G37 Sedan

NORMAL OPERATING CONDITION
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
Description
LOW TIRE PRESSURE WARNING LAMP BLINKS
The tire pressure monitoring system is not malfunctioning if the low tire pressure warning lamp blinks in the pattern as shown in the figure. The incident occurs because the transmitter of each wheel is not wake up. Perform transmitter wake up operation. Refer to WT-6, "TRANSMITTER WAKE UP OPERATION : Special Repair Requirement".

INFOID:0000000004503782 JPEIC0031GB

Revision: 2009 October

WT-92

2009 G37 Sedan

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

< SYMPTOM DIAGNOSIS >

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000004503783

Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.

NVH in ST section.

NVH in BR section.

NVH in FAX, RAX section.

Refer to ROAD WHEEL in this chart.

Refer to TIRES in this chart.

NVH in RAX and RSU sections.

REAR AXLE AND REAR SUSPENSION

FRONT AXLE AND FRONT SUSPENSION NVH in FAX and FSU sections.

NVH in DLN section.

WT-103, "Tire"

WT-97, "Adjustment"

WT-103, "Tire"

WT-97, "Adjustment"

WT-96, "Inspection"

2WD models: FSU-9, FSU-12 AWD models: FSU-31, FSU-34

D
Reference page
WT

STEERING

BRAKE

DRIVE SHAFT

ROAD WHEELS

DIFFERENTIAL

PROPELLER SHAFT

Incorrect tire size

Non-uniformity

Deformation or damage

Uneven tire wear

Incorrect tire pressure

Improper installation, looseness

H
Possible cause and SUSPECTED PARTS
I

TIRES

unbalance

Out-of-round

TIRES Symptom
ROAD WHEEL ×: Applicable

Noise Shake Vibration Shimmy Judder Poor quality ride or handling Noise Shake Shimmy, Judder Poor quality ride or handling

××××××

××××

×××××

××

×××××××

××

×××××

××

××××

×××× K

××

×× L

×××××

××

×××××

××× M

×××

×× N

×××

Revision: 2009 October

WT-93

2009 G37 Sedan

< PRECAUTION >
PRECAUTION
PRECAUTIONS

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT

PRE-TENSIONER"

INFOID:0000000004503903

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 AIR BAG" and "SEAT BELT" of this Service Manual.
WARNING: · 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. · 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 AIR BAG". · 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 WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING: · When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. · When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.

Service Notice or Precautions

INFOID:0000000004503788

· Low tire pressure warning lamp blinks for 1min, then turns ON when occurring any malfunction except low tire pressure. Delete the memory with CONSULT-III, or register the ID to turn low tire pressure warning lamp OFF. Refer to WT-13, "AIR PRESSURE MONITOR : Diagnosis Description", WT-6, "ID REGISTRATION PROCEDURE : Special Repair Requirement".
· ID registration is required when replacing or rotating wheels, replacing transmitter or BCM. Refer to BCS-82, "Exploded View".
· Replace grommet seal, valve core and cap of transmitter in TPMS every tire replacement by reaching wear limit of tire. Refer to WT-100, "Exploded View".

Revision: 2009 October

WT-94

2009 G37 Sedan

PREPARATION
< PREPARATION >
PREPARATION A
PREPARATION

Special Service Tool

INFOID:0000000004503789

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number (Kent-Moore No.) Tool name
(J-45295) Transmitter activation tool

C
Description

ID registration

Commercial Service Tool
Tool name Power tool

SEIA0462E

F
INFOID:0000000004503790
G
Description Loosening wheel nuts
H

I
PBIC0190E
J

Revision: 2009 October

WT-95

2009 G37 Sedan

ROAD WHEEL
< PERIODIC MAINTENANCE >
PERIODIC MAINTENANCE
ROAD WHEEL
Inspection

INFOID:0000000004503894

ALUMINUM WHEEL
1. Check tires for wear and improper inflation. 2. Check wheels for deformation, cracks and other damage. If deformed, remove wheel and check wheel
runout. a. Remove tire from aluminum wheel and mount on a tire balance machine. b. Set dial indicator as shown in the figure. c. If the lateral deflection (A) or vertical deflection (B) for radial
runout value exceeds the limit, replace aluminum wheel.

Limit A: Refer to WT-103, "Road Wheel". B: Refer to WT-103, "Road Wheel".

SEIA0737E
STEEL WHEEL
1. Check tires for were and improper inflation. 2. Check wheels for deformation, clacks and other damage. If deformed, remove wheel and check wheel
runout. a. Remove tire from steel wheel and mount wheel on a tire balance machine. b. Set two dial indicators as shown in the illustration. c. Set each dial indicator to "0". d. Rotate wheel and check dial indicators at several points around
the circumference of the wheel. e. Calculate runout at each point as shown below.

Lateral runout limit (A): ( + )/2
Radial runout limit (B): ( + )/2
f. Select maximum positive runout value and the maximum negative value. Add the two values to determine total runout. CAUTION: In case a positive or negative value is not available, use the maximum value (negative or positive) for total runout.

Limit A: Refer to WT-103, "Road Wheel". B: Refer to WT-103, "Road Wheel". g. If the total runout value exceeds limit, replace steel wheel.

SEIA0738E

Revision: 2009 October

WT-96

2009 G37 Sedan

ROAD WHEEL TIRE ASSEMBLY
< REMOVAL AND INSTALLATION >
REMOVAL AND INSTALLATION A
ROAD WHEEL TIRE ASSEMBLY

Adjustment

INFOID:0000000004503895

BALANCING WHEELS (BONDING WEIGHT TYPE)

Preparation Before Adjustment

Using releasing agent, remove double-faced adhesive tape from the road wheel.

CAUTION:

· Be careful not scratch the road wheel during removal.

· After removing double-faced adhesive tape, wipe clean traces of releasing agent from the road

wheel.

Wheel Balance Adjustment

· If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting,

select and adjust a drive-in weight mode suitable for road wheels.

1. Set road wheel on tire balance machine using the center hole as a guide. Start the tire balance machine. F

2. When inner and outer unbalance values are shown on the tire balance machine indicator, multiply outer

unbalance value by 5/3 to determine balance weight that should be used. Select the outer balance weight

with a value closest to the calculated value above and install in to the designated outer position of, or at the designated angle in relation to the road wheel.

CAUTION:

· Never install the inner balance weight before installing the outer balance weight.

· Before installing the balance weight, be sure to clean the mating surface of the road wheel.

a. Indicated un balance value × 5/3 = balance weight to be installed Calculation example: 23 g (0.81 oz) × 5/3 = 38.33 g (1.35 oz) 37.5 g (1.32 oz) balance weight (closer to calculated balance weight value) NOTE: Note that balance weight value must be closer to the calculated balance weight value. Example: 36.2 35 g (1.23 oz) 36.3 37.5 g (1.32 oz)

I
J
K
SMA054D

b. Installed balance weight in the position.

Revision: 2009 October

WT-97

2009 G37 Sedan

ROAD WHEEL TIRE ASSEMBLY
< REMOVAL AND INSTALLATION >
· When installing balance weight (1) to road wheels, set it into the grooved area (A) on the inner wall of the road wheel as shown in the figure so that the balance weight center (B) is aligned with the tire balance machine indication position (angle)(C). CAUTION: · Always use genuine NISSAN adhesion balance weights. · Balance weights are non-reusable; always replace with new ones. · Never install more than three sheets of balance weight.

c. If calculated balance weight value exceeds 50 g (1.76 oz), install two balance weight sheets in line with each other as shown in the figure. CAUTION: Never install one balance weight sheet on top another.
3. Start tire balance machine again.
4. Install drive-in balance weight on inner side of road wheel in the tire balance machine indication position (angle). CAUTION: Never install more than two balance weight.
5. Start tire balance machine. Make sure that inner and outer residual unbalance values are 5 g (0.17 oz) each or below.
6. If either residual unbalance value exceeds 5 g (0.17 oz), repeat installation procedures.

JPEIC0040ZZ PEIA0033E

Wheel balance
Maximum allowable unbalance

Dynamic (At flange)

Static (At flange)

Refer to WT-103, "Road Wheel".

TIRE ROTATION (for 17 and 18 inch wheel models)
· Follow the maintenance schedule for tire rotation service intervals. Refer to MA-4, "Explanation of General Maintenance".
· When installing the wheel, tighten wheel nuts to the specified torque. CAUTION: · Never include the T-type spare tire when rotating the tires. · When installing wheels, tighten them diagonally by dividing the work two to three times in order to prevent the wheels from developing any distortion. · Be careful not to tighten wheel nut at torque exceeding the criteria for preventing strain of disc rotor. · Use NISSAN genuine wheel nuts for aluminum wheels.

Wheel nuts tighting torque : Refer to WT-103, "Road Wheel".

SMA829C

Revision: 2009 October

WT-98

2009 G37 Sedan

ROAD WHEEL TIRE ASSEMBLY

< REMOVAL AND INSTALLATION >

· Perform the ID registration, after tire rotation. Refer to WT-6, "ID REGISTRATION PROCEDURE : Special

Repair Requirement".

TIRE ROTATION (for 18 inch front and rear different tire size models)

· Tire cannot be rotated in vehicle, as front tire are different size from rear tire is fixed in each tire.

Wheel nuts tighting torque : Refer to WT-103, "Road

Wheel".

CAUTION:

· Never include the T-type spare tire when rotating the tires.

· Use NISSAN genuine wheel nuts for aluminum wheels.

Safety Device Preventing from Being Incorrectly installed

FRONT BRAKE DISC ROTOR AND FRONT WHEEL

· Front and rear wheel size for this model differs, therefore special pin (1) is adopted to the front brake disc

rotor (2). And a hole (3) that matches to this pin is adopted to the front wheel (4) (the rear wheel does not

have this wheel). This structure prevents the rear wheel from being mistakenly installed on the front.

T-TYPE SPARE TIRE WHEEL
· Regarding spare tire (for emergency) wheel, wrong assembly protection pin through hole (1) has been set in addition to regular bolt holes (2) in order to enable installation to front wheel. NOTE: Protection pin through hole of 18 inch spare wheel is non-through type.

JPEIC0015ZZ

JPEIC0029ZZ

Revision: 2009 October

WT-99

2009 G37 Sedan

< REMOVAL AND INSTALLATION >
TRANSMITTER
Exploded View

TRANSMITTER

INFOID:0000000004503896

1. Transmitter

2. Grommet seal

4. Valve core

5. Cap

Refer to GI-4, "Components" for symbols in figure.

Removal and Installation

3. Valve nut

REMOVAL
1. Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
2. Gently bounce tire so that transmitter falls to bottom of tire. Place on tire changing machine and break both tire beads ensuring that the transmitter remains at the bottom of the tire.

JPEIC0006GB INFOID:0000000004503897

3. Turn tire so that valve hole is at bottom and bounce so that transmitter (1) is near valve hole. Carefully lift tire onto turntable and position valve hole (and transmitter) 270 degree from mounting/dismounting head (2).
4. Lubricate tire well and remove first side of the tire. Reach inside the tire and remove the transmitter.

INSTALLATION
Revision: 2009 October

WT-100

SEIA0047E JPEIC0014GB
2009 G37 Sedan

< REMOVAL AND INSTALLATION > 1. Put first side of tire onto rim.

TRANSMITTER

2. Mount transmitter on rim and tighten nut. CAUTION: Speed for tightening nut should be less than 15 rpm.
3. Place wheel on turntable of tire machine. Ensure that transmitter (1) is 270 degree from mounting head (2) when second side of tire is fitted. NOTE: Do not touch transmitter at mounting head.
4. Lubricate tire well and fit second side of tire as normal. Ensure that tire does not rotate relative to rim.
5. Inflate tire and fit to appropriate wheel position.

Revision: 2009 October

WT-101

A B C
SEIA0049E
D WT
F G H
JPEIC0014GB
I J K L M N O P
2009 G37 Sedan

TIRE PRESSURE RECEIVER
< REMOVAL AND INSTALLATION >
TIRE PRESSURE RECEIVER
Exploded View

INFOID:0000000004503898

1. Tire pressure receiver
: Vehicle front
Removal and Installation
REMOVAL
1. Remove the instrument lower cover. Refer to IP-11, "Exploded View". 2. Remove the glove box assembly. 3. Remove the instrument lower panel RH. 4. Disconnect tire pressure receiver harness connector. 5. Remove Tire pressure receiver mounting screw. 6. Remove tire pressure receiver.
INSTALLATION
Install is the reverse order of removal.

JPEIC0053ZZ INFOID:0000000004503899

Revision: 2009 October

WT-102

2009 G37 Sedan

SERVICE DATA AND SPECIFICATIONS (SDS)
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS) A
SERVICE DATA AND SPECIFICATIONS (SDS)

Road Wheel

INFOID:0000000004504026

ALUMINUM WHEEL (CONVENTIONAL)

Item

Radial runout

Lateral deflection Vertical deflection

Allowable unbalance

Dynamic (At flange) Static (At flange)

STEEL WHEEL (FOR EMERGENCY USE)

C
Limit
Less than 0.3 mm (0.012 in)
D
Less than 5 g (0.17 oz) (one side) Less than 10 g (0.35 oz)
WT

Radial runout Allowable unbalance
Wheel Nut

Item Lateral deflection Vertical deflection Dynamic (At flange) Static (At flange)

Limit

Less than 1.5 mm (0.059 in)

Less than 5 g (0.17 oz) (one side)

Less than 10 g (0.35 oz)

INFOID:0000000004503901

Item Wheel nut tighting torque
Tire

P225/55R17 95V P225/50R18 94V 225/50R18 95W 245/45R18 96W T145/80D17 T145/70R18

Tire size

Standard

108 N·m (11 kg-m, 80 ft-lb)

Front 230 (2.3, 33) 230 (2.3, 33) 230 (2.3, 33)

420 (4.2, 60)

Air pressure

INFOID:0000000004503913
J
Unit: kPa (kg/cm2, psi)

K
Rear

230 (2.3, 33)

230 (2.3, 33)
M

420 (4.2, 60)

Revision: 2009 October

WT-103

2009 G37 Sedan

FrameMaker 7.1 Acrobat Distiller 6.0.1 (Windows)