Infiniti G37 Coupe. Manual - part 221

 

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Infiniti G37 Coupe. Manual - part 221

 

 

BCS-2

AIR PRESSURE MONITOR ......................................

29

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

30

AIR PRESSURE MONITOR : CONSULT-III Func-
tion (BCM - AIR PRESSURE MONITOR) ..............
.

31

COMPONENT DIAGNOSIS  ........................

33

U1000 CAN COMM CIRCUIT  ............................

33

Description ..............................................................

33

DTC Logic ...............................................................

33

Diagnosis Procedure  ..............................................

33

U1010 CONTROL UNIT (CAN)  .........................

34

DTC Logic ...............................................................

34

Diagnosis Procedure  ..............................................

34

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

34

U0415 VEHICLE SPEED SIG  ............................

35

Description ..............................................................

35

DTC Logic ...............................................................

35

Diagnosis Procedure  ..............................................

35

B2562 LOW VOLTAGE  .....................................

36

DTC Logic ...............................................................

36

Diagnosis Procedure  ..............................................

36

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

36

B2563 HI VOLTAGE  ..........................................

37

DTC Logic ...............................................................

37

Diagnosis Procedure  ..............................................

37

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

37

POWER SUPPLY AND GROUND CIRCUIT  .....

38

Diagnosis Procedure  ..............................................

38

COMBINATION SWITCH INPUT CIRCUIT  .......

39

Diagnosis Procedure  ..............................................

39

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

40

COMBINATION SWITCH OUTPUT CIRCUIT ...

41

Diagnosis Procedure ...............................................

41

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

42

ECU DIAGNOSIS  .......................................

43

BCM (BODY CONTROL MODULE)  ..................

43

Reference Value  .....................................................

43

Wiring Diagram - BCM - ..........................................

66

Fail Safe .................................................................

71

DTC Inspection Priority Chart ...............................

73

DTC Index ..............................................................

75

SYMPTOM DIAGNOSIS  ............................

77

COMBINATION SWITCH SYSTEM SYMP-
TOMS .................................................................

77

Symptom Table .......................................................

77

PRECAUTION ............................................

78

PRECAUTIONS  .................................................

78

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................

78

Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect ...................................

78

Precaution for Battery Service  ................................

78

ON-VEHICLE REPAIR  ...............................

79

BCM (BODY CONTROL MODULE)  ..................

79

Exploded View  ........................................................

79

Removal and Installation .........................................

79

COMBINATION SWITCH  ..................................

80

Exploded View  ........................................................

80

Removal and Installation .........................................

80

BCS

BODY CONTROL SYSTEM

BCS-3

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

BODY CONTROL SYSTEM

System Description

INFOID:0000000001612370

OUTLINE

• BCM (Body Control Module) controls the various electrical components. It inputs the information required to

the control from CAN communication and the signal received from each switch and sensor. 

• BCM has combination switch reading function for reading the operation status of combination switches (light,

turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical com-
ponents. It also has the signal transmission function as the passed point of signal and the power saving con-
trol function that reduces the power consumption with the ignition switch OFF.

• BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT-III and various set-

tings.

BCM control function list

System

Refer to

Combination switch reading system

BCS-5, "System Diagram"

Signal buffer system

BCS-9, "System Diagram"

Power consumption control system

BCS-10, "System Diagram"

Auto light system

EXL-12, "System Diagram"

Turn signal and hazard warning lamp system

EXL-24, "System Diagram"

Headlamp system

EXL-8, "System Diagram"

Parking, license plate and tail lamps system

EXL-26, "System Diagram"

Front fog lamp system

EXL-22, "System Diagram"

Exterior lamp battery saver system

EXL-28, "System Diagram"

Daytime running light system

EXL-15, "System Diagram"

Interior room lamp control system

INL-5, "System Diagram"

Step lamp system

Trunk room lamp system

Interior room lamp battery saver system

INL-9, "System Diagram"

Front wiper and washer system

WW-5, "System Diagram"

Warning chime system

WCS-5, "WARNING CHIME SYSTEM : System Diagram"

Door lock system

DLK-12, "DOOR LOCK AND UNLOCK SWITCH : System Dia-
gram"

Trunk open system

DLK-26, "TRUNK LID OPENER SWITCH : System Diagram"

Infiniti Vehicle Immobilizer System (IVIS) - NATS

SEC-17, "System Diagram"

Vehicle security system

SEC-23, "System Diagram"

Panic alarm

Automatic drive positioner system

ADP-13, "AUTOMATIC DRIVE POSITIONER SYSTEM : System 
Diagram"

Rear window defogger system

DEF-4, "System Diagram"

BCS-4

< FUNCTION DIAGNOSIS >

BODY CONTROL SYSTEM

Component Parts Location

INFOID:0000000001612371

Intelligent Key system/engine start system

Door lock function

DLK-15, "DOOR REQUEST SWITCH : System Diagram"

 (door 

request switch)

DLK-20, "INTELLIGENT KEY : System Diagram"

 (Intelligent 

Key)

Trunk open function

DLK-29, "TRUNK REQUEST SWITCH : System Diagram"

 

(trunk request switch)

DLK-34, "INTELLIGENT KEY : System Diagram"

 (Intelligent 

Key)

Warning function

DLK-39, "System Description"

Key reminder function

DLK-46, "System Description"

Engine start function

SEC-9, "System Diagram"

Power window system

PWC-6, "System Diagram"

 (front and rear window anti-pinch)

Retained accessory power (RAP) system

PWC-6, "System Description"

Tire pressure monitor system (TPMS) - AIR PRESSURE MONI-
TOR

WT-7, "System Diagram"

System

Refer to

1.

BCM

A.

Dash side lower (passenger side)

JPMIA0506ZZ

BCS

COMBINATION SWITCH READING SYSTEM

BCS-5

< FUNCTION DIAGNOSIS >

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COMBINATION SWITCH READING SYSTEM

System Diagram

INFOID:0000000001612372

System Description

INFOID:0000000001612373

OUTLINE

• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the

status of each switch.

• BCM is a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a

maximum of 20 switch status.

COMBINATION SWITCH MATRIX

Combination switch circuit

Combination switch INPUT-OUTPUT system list

JPMIA0083GB

System

OUTPUT 1

OUTPUT 2

OUTPUT 3

OUTPUT 4

OUTPUT 5

INPUT 1

FR WASHER

FR WIPER LOW

TURN LH

TURN RH

INPUT 2

FR WIPER HI

FR WIPER INT

PASSING

HEADLAMP 1

INPUT 3

INT VOLUME 1

HEADLAMP 2

HI BEAM

JPMIA0066GB

 

 

 

 

 

 

 

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