2007 INFINITI M35 diagram

TROUBLE DIAGNOSIS
BRC-15
[VDC/TCS/ABS]
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Revision: 2007 April2007 M35/M45
Wiring Diagram — VDC — NFS000QE
TFWT0349E

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION DI
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Revision: 2007 April2007 M35/M45
DRIVER INFORMATION SYSTEM
PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
COMBINATION METERS ........................................... 5
System Description .................................................. 5
UNIFIED METER CONTROL UNIT ...................... 5
UNIFIED METER AND A/C AMP. ......................... 5
POWER SUPPLY AND GROUND CIRCUIT ........ 5
SPEEDOMETER ................................................... 6
TACHOMETER ..................................................... 6
WATER TEMPERATURE GAUGE ........................ 6
FUEL GAUGE ....................................................... 7
ODO/TRIP METER ............................................... 7
METER ILLUMINATION CONTROL ..................... 8
FAIL-SAFE ............................................................ 9
Arrangement of Combination Meter ....................... 10
Component Parts Location ...................................... 11
Internal Circuit ........................................................ 12
Wiring Diagram — METER — ................................ 13
Terminals and Reference Value for Combination
Meter ...................................................................... 15
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 16
Self-Diagnosis Mode of Combination Meter ........... 17
SELF-DIAGNOSIS FUNCTION .......................... 17
OPERATION PROCEDURE ............................... 17
CONSULT-II Function (METER A/C AMP) ............. 18
Trouble Diagnosis .................................................. 18
HOW TO PERFORM TROUBLE DIAGNOSIS ... 18
PRELIMINARY CHECK ...................................... 18
Symptom Chart ...................................................... 18
Power Supply and Ground Circuit Inspection ........ 19
Vehicle Speed Signal Inspection ............................ 20
Engine Speed Signal Inspection ............................ 21
Engine Coolant Temperature Signal Inspection ..... 22
Fuel Level Sensor Signal Inspection ...................... 22
Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or Varies ....................................................... 25
Fuel Gauge Does Not Move to FULL Position ....... 25
Electrical Components Inspection .......................... 26
CHECK FUEL LEVEL SENSOR UNIT ................ 26
Removal and Installation of Combination Meter ..... 27
REMOVAL ........................................................... 27
INSTALLATION ................................................... 27
Disassembly and Assembly of Combination Meter ... 27
DISASSEMBLY ................................................... 27
ASSEMBLY ......................................................... 27
UNIFIED METER AND A/C AMP .............................. 28
System Description ................................................. 28
COMBINATION METER CONTROL FUNCTION ... 28
A/C AUTO AMP. FUNCTION ............................... 29
OTHER FUNCTIONS .......................................... 29
Schematic ............................................................... 30
CONSULT-II Function (METER A/C AMP) ............. 31
CONSULT-II BASIC OPERATION ....................... 31
SELF-DIAG RESULTS ........................................ 31
DATA MONITOR ................................................. 32
Power Supply and Ground Circuit Inspection ......... 34
DTC [U1000] CAN Communication Circuit ............. 35
DTC [B2202] Meter Communication Circuit ........... 35
DTC [B2205] Vehicle Speed Circuit ........................ 38
Removal and Installation of Unified Meter and A/C
Amp. ....................................................................... 38
REMOVAL ........................................................... 38
INSTALLATION ................................................... 38
WARNING LAMPS .................................................... 39
System Description ................................................. 39
OIL PRESSURE WARNING LAMP ..................... 39
Component Parts and Harness Connector Location ... 40
Schematic ............................................................... 41
Wiring Diagram — WARN — .................................. 42
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................. 52
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ................................................ 53
Electrical Component Inspection ............................ 54
OIL PRESSURE SWITCH ................................... 54

DI-2Revision: 2007 April2007 M35/M45 A/T INDICATOR ........................................................ 55
System Description ................................................. 55
MANUAL MODE .................................................. 55
NOT MANUAL MODE ......................................... 55
Wiring Diagram — AT/IND — ................................. 56
A/T Indicator Is Malfunction .................................... 58
WARNING CHIME ..................................................... 59
System Description ................................................. 59
POWER SUPPLY AND GROUND CIRCUIT ....... 59
IGNITION KEY WARNING CHIME (WITH INTEL-
LIGENT KEY) ...................................................... 60
LIGHT WARNING CHIME ................................... 60
SEAT BELT WARNING CHIME ........................... 60
Component Parts and Harness Connector Location ... 61
Schematic ............................................................... 62
Wiring Diagram — CHIME — ................................. 63
Terminals and Reference Value for Combination
Meter ...................................................................... 66
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 66
Terminals and Reference Value for BCM ................ 67
CONSULT-II Function (BCM) .................................. 68
CONSULT-II BASIC OPERATION ....................... 68
DATA MONITOR .................................................. 68
ACTIVE TEST ..................................................... 69
SELF-DIAG RESULTS ........................................ 69
CONSULT-II Function (METER A/C AMP) ............. 69
Trouble Diagnosis ................................................... 70
HOW TO PERFORM TROUBLE DIAGNOSIS .... 70
PRELIMINARY INSPECTION ............................. 70
SYMPTOM CHART ............................................. 70
Meter Buzzer Circuit Inspection .............................. 70
Lighting Switch Signal Inspection ........................... 71
Front Door Switch (Driver Side) Signal Inspection ... 72
Seat Belt Buckle Switch Signal Inspection ............. 73
Electrical Component Inspection ............................ 74
FRONT DOOR SWITCH (DRIVER SIDE) ........... 74
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 74
LANE DEPARTURE WARNING SYSTEM ................ 75
Precautions for Lane Departure Warning (LDW)
system .................................................................... 75
System Description ................................................. 75
LDW SYSTEM OPERATION ............................... 75
POWER SUPPLY AND GROUND CIRCUIT ....... 77
Action Test .............................................................. 77
LDW SYSTEM RUNNING TEST ......................... 77
Camera Aiming Adjustment .................................... 78
OUTLINE ............................................................. 78
PREPARATION ................................................... 78
TARGET SETTING .............................................. 78
VEHICLE HEIGHT CHECK ................................. 81
AIMING ADJUSTMENT ....................................... 81Component Parts and Harness Connector Location ... 85
Wiring Diagram — LDW — ..................................... 86
Terminals and Reference Value for LDW Camera
Unit .......................................................................... 88
CONSULT-II Function (LDW) .................................. 88
DESCRIPTION .................................................... 88
CONSULT-II BASIC OPERATION ....................... 88
WORK SUPPORT ............................................... 89
SELF-DIAG RESULTS ......................................... 89
DATA MONITOR .................................................. 90
ACTIVE TEST ...................................................... 91
Trouble Diagnosis ................................................... 92
HOW TO PERFORM TROUBLE DIAGNOSIS .... 92
PRELIMINARY INSPECTION .............................. 92
SYMPTOM CHART .............................................. 93
Power Supply and Ground Circuit Inspection ......... 93
DTC [C1B00] CAMERA UNIT MALF ...................... 94
DTC [C1B01] CAM AIMING INCMP ....................... 94
DTC [C1B02] VHCL SPD DATA MALF ................... 94
DTC [C1B03] ABNRML TEMP DETECT ................ 94
DTC [U1000] CAN COMM CIRCUIT ...................... 95
DTC [U1010] CONTROL UNIT (CAN) .................... 95
LDW Chime Circuit Inspection ................................ 95
LDW Switch Circuit Inspection ................................ 96
LDW Indicator Lamp Circuit Inspection ................... 99
Turn Signal Input Inspection .................................100
Electrical Component Inspection ..........................100
LDW SWITCH ....................................................100
Removal and Installation for LDW Camera Unit ...100
REMOVAL ..........................................................100
INSTALLATION ..................................................100
Removal and Installation for LDW Chime .............101
REMOVAL ..........................................................101
INSTALLATION ..................................................101
Removal and Installation for LDW Switch .............101
COMPASS ...............................................................102
Precautions for Compass ......................................102
System Description ...............................................102
Troubleshooting ....................................................103
Zone Variation Setting Procedure .........................104
Calibration Procedure ...........................................104
Wiring Diagram – COMPAS – ...............................105
Removal and Installation of Compass ...................106
CLOCK ....................................................................107
Wiring Diagram — CLOCK — ...............................107
Removal and Installation of Clock .........................108
REMOVAL ..........................................................108
INSTALLATION ..................................................108
CAN COMMUNICATION .........................................109
System Description ...............................................109
CAN Communication Unit .....................................109

COMBINATION METERS
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Revision: 2007 April2007 M35/M45
Wiring Diagram — METER —NKS003TZ
TKWT5280E

DI-42
WARNING LAMPS
Revision: 2007 April2007 M35/M45
Wiring Diagram — WARN —NKS003UR
TKWT3427E

DI-56
A/T INDICATOR
Revision: 2007 April2007 M35/M45
Wiring Diagram — AT/IND —NKS003UW
TKWT3438E

WARNING CHIME
DI-63
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Revision: 2007 April2007 M35/M45
Wiring Diagram — CHIME —NKS003V1
TKWT5285E

LANE DEPARTURE WARNING SYSTEM
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Revision: 2007 April2007 M35/M45
System Diagram
Components Description
NOTE:
*: This indicates in a few seconds for the system check during ignition switch ON.
POWER SUPPLY AND GROUND CIRCUIT
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 12, located in the fuse block (J/B)]

to LDW camera unit terminal 1.
Ground is supplied

to LDW camera unit terminals 6 and 12

through grounds M16 and M70.
Action TestNKS003VH
LDW SYSTEM RUNNING TEST
WARNING:

Be careful when performing road test.

Understand “Precautions” and “System Description” well before the road test. Refer to DI-75,
"Precautions for Lane Departure Warning (LDW) system" and DI-75, "System Description" .
Function Check
Check the LDW system operation according to the condition that the warning function works. Refer to DI-75,
"LDW SYSTEM OPERATION" .
PKIC0698E
Component Description
LDW camera unitDetects the lane marker by the built-in camera, gives judgement for the warning according to the
result of detection and signals from each unit, and transmits the operation signal to LDW chime and
LDW indicator lamp.
LDW switch

Selects ON/OFF of the system.

Indicates ON/OFF of the signal with LDW system ON indicator.
LDW chime Gives a warning chime according to the direction from LDW camera unit.
LDW indicator lampInstalled in combination meter, and indicates the system condition.

Blinks when LDW system is functioning to alert the driver.

Stays on when LDW system is malfunctioning.*
BCM Transmits turn indicator signal to LDW camera unit with CAN communication signal.
ABS actuator and electric unit
(control unit)Transmits vehicle speed signal to LDW camera unit with CAN communication signal.
TCM Transmits vehicle speed signal to LDW camera unit with CAN communication signal. (For detecting
incorrect speed.)