2006 INFINITI M35 ignition

BRC-52
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
2. CHECK VDC OFF SWITCH HARNESS
1. Disconnect ABS actuator and electric unit (control unit) connector E30.
2. Check continuity between VDC OFF switch connector M24 and
ABS actuator and electric unit (control unit) connector E30.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace malfunctioning components.
Inspection 18: Parking Brake Switch CircuitNFS000R2
INSPECTION PROCEDURE
1. CHECK PARKING BRAKE SWITCH
1. Turn ignition switch OFF and disconnect parking brake switch connector E110.
2. Check continuity between parking brake switch connector E110
and ground.
OK or NG
OK >> GO TO 2.
NG >> Parking brake switch is malfunctioning. Replace parking brake switch.
SFIA3047E
ABS actuator and electric unit
(control unit)VDC OFF switch Continuity
311Yes
Ground No
Ground 2 Yes
Condition Continuity
When the parking brake pedal is
operatedYes
When the parking brake pedal is
not operatedNo
SFIA2935E

BRC-54
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
2. CHECK FRONT AND REAR AXLE
Make sure that there is no excessive play in the front and rear axles. Refer to front: FAX-5, "
WHEEL BEAR-
ING INSPECTION" , Rear: RAX-5, "WHEEL BEARING INSPECTION" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace malfunctioning components.
3. CHECK WHEEL SENSOR AND SENSOR ROTOR
Check the following.
Wheel sensor installation for damage.
Sensor rotor installation for damage.
Wheel sensor connector connection.
Wheel sensor harness inspection.
OK or NG
OK >> GO TO 4.
NG >>
Replace wheel sensor or sensor rotor.
Repair harness.
4. CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving.
OK or NG
OK >> Normal
NG >> Perform self-diagnosis. Refer to BRC-23, "
Self-Diagnosis" .
Symptom 2 Unexpected Pedal ReactionNFS000R5
1. CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Refer to BR-6, "
Inspection and Adjustment" .
Is the stroke too big?
YES >>Bleed air from brake tube and hose. Refer to BR-11, "Bleeding Brake System" .
Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake sys-
tem fluid leakage, etc. Refer to brake pedal: BR-7, "
COMPONENTS" , brake booster and mas-
ter cylinder: BR-19, "
COMPONENTS" .
NO >> GO TO 2.
2. CHECK FUNCTION
Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. Check if braking force is
normal in this condition.Connect connector after inspection.
OK or NG
OK >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .
NG >> Check brake system.

TROUBLE DIAGNOSIS
BRC-55
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 January2006 M35/M45
Symptom 3 The Braking Distance Is LongNFS000R6
CAUTION:
The stopping distance on slippery road surfaces might be longer with the ABS operating than when
the ABS is not operating.
1. CHECK FUNCTION
Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector to deactivate
ABS. In this condition, check stopping distance. After inspection, connect connector.
OK or NG
OK >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .
NG >> Check brake system.
Symptom 4 ABS Function Does Not OperateNFS000R7
CAUTION:
ABS does not operate when speed is 10 km/h (6 MPH) or lower.
1. CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp turns OFF after ignition switch is turned on or when driving.
OK or NG
OK >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .
NG >> Perform self-diagnosis. Refer to BRC-23, "
Self-Diagnosis" .
Symptom 5 Pedal Vibration or ABS Operation Sound OccursNFS000R8
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it).However, this is normal.
When shifting gears
When driving on slippery road
During cornering at high speed
When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1. SYMPTOM CHECK 1
Check if there is pedal vibration or operation sound when the engine is started.
Do symptoms occur?
YES >> GO TO 2.
NO >> Perform self -diagnosis. Refer to BRC-23, "
Self-Diagnosis" .
2. SYMPTOM CHECK 2
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to
BRC-53, "
Symptom 1 Excessive ABS Function Operation Frequency" .

BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Symptom 6 Vehicle Jerks During VDC/TCS/ABS ControlNFS000R9
1. SYMPTOM CHECK
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK >> Normal.
NG >> GO TO 2.
2. CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnostic of ABS actuator and electric unit (control unit).
Are self-diagnosis results indicated?
YES >> Check corresponding items, make repairs, and perform ABS actuator and electric unit (control
unit) self-diagnosis.
NO >> GO TO 3.
3. CHECK CONNECTOR
Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector and check
terminal for deformation, disconnection, looseness, etc.
Securely connect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis results indicated?
YES >> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.
NO >> GO TO 4.
4. CHECK ECM AND A/T SELF-DIAGNOSIS RESULTS
Perform ECM and A/T self-diagnosis.
Are self-diagnosis results indicated?
YES >> Check the corresponding items.
ECM: Refer to EC-100, "TROUBLE DIAGNOSIS" (VQ35DE), EC-811, "TROUBLE DIAGNO-
SIS" (VK45DE).
A/T: Refer to AT-44, "TROUBLE DIAGNOSIS" .
NO >> Replace ABS actuator and electric unit (control unit).

CO-8
[VQ35DE]
OVERHEATING CAUSE ANALYSIS
Revision: 2006 January2006 M35/M45
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator —
Blocked condenser
Blocked air flow
Installed large fog lamp Symptom Check items

OVERHEATING CAUSE ANALYSIS
CO-37
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
CO
Revision: 2006 January2006 M35/M45
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator —
Blocked condenser
Blocked air flow
Installed large fog lamp Symptom Check items

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION DI
A
B
DI
Revision: 2006 January2006 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 and Harness Connector 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 ........................................ 32
DATA MONITOR ................................................. 33
Power Supply and Ground Circuit Inspection ......... 35
DTC [U1000] CAN Communication Circuit ............. 36
DTC [B2202] Meter Communication Circuit ........... 36
DTC [B2205] Vehicle Speed Circuit ........................ 39
Removal and Installation of Unified Meter and A/C
Amp. ....................................................................... 39
REMOVAL ........................................................
... 39
INSTALLATION ................................................... 39
WARNING LAMPS .................................................... 40
System Description ................................................. 40
OIL PRESSURE WARNING LAMP ..................... 40
Component Parts and Harness Connector Location ... 41
Schematic ............................................................... 42
Wiring Diagram — WARN — .................................. 43
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................. 53
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ................................................ 54
Electrical Component Inspection ............................ 55
OIL PRESSURE SWITCH ................................... 55

DI-2Revision: 2006 January2006 M35/M45 A/T INDICATOR ........................................................ 56
System Description ................................................. 56
MANUAL MODE .................................................. 56
NOT MANUAL MODE ......................................... 56
Wiring Diagram — AT/IND — ................................. 57
A/T Indicator Is Malfunction .................................... 59
WARNING CHIME .................................................. ... 60
System Description ................................................. 60
POWER SUPPLY AND GROUND CIRCUIT ....... 60
IGNITION KEY WARNING CHIME (WITH INTEL-
LIGENT KEY) ...................................................... 61
LIGHT WARNING CHIME ................................... 61
SEAT BELT WARNING CHIME ........................... 61
Component Parts and Harness Connector Location ... 62
Schematic ............................................................... 63
Wiring Diagram — CHIME — ................................. 64
Terminals and Reference Value for Combination
Meter ...................................................................... 67
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 67
Terminals and Reference Value for BCM ................ 68
CONSULT-II Function (BCM) .................................. 69
CONSULT-II BASIC OPERATION ....................... 69
DATA MONITOR .................................................. 70
ACTIVE TEST ..................................................... 71
SELF-DIAG RESULTS ........................................ 71
CONSULT-II Function (METER A/C AMP) ............. 71
Trouble Diagnosis ................................................... 71
HOW TO PERFORM TROUBLE DIAGNOSIS .... 71
PRELIMINARY INSPECTION ............................. 71
SYMPTOM CHART ............................................. 72
Meter Buzzer Circuit Inspection .............................. 72
Lighting Switch Signal Inspection ........................... 73
Front Door Switch (Driver Side) Signal Inspection ... 73
Seat Belt Buckle Switch Signal Inspection ............. 74
Electrical Component Inspection ............................ 76
FRONT DOOR SWITCH (DRIVER SIDE) ........... 76
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 76
CAN COMMUNICATION ........................................... 77
System Description ................................................. 77
CAN Communication Unit ....................................... 77
LANE DEPARTURE WARNING SYSTEM ................ 78
Precautions for Lane Departure Warning (LDW)
system .................................................................... 78
System Description ................................................. 78
LDW SYSTEM OPERATION ............................... 78
POWER SUPPLY AND GROUND CIRCUIT ....... 80
Action Test ...........................................................
... 80
LDW SYSTEM RUNNING TEST ......................... 80
Camera Aiming Adjustment .................................... 81
OUTLINE ............................................................. 81
PREPARATION ................................................... 81TARGET SETTING .............................................. 81
VEHICLE HEIGHT CHECK ................................. 84
AIMING ADJUSTMENT ....................................... 84
Component Parts and Harness Connector Location ... 88
Wiring Diagram — LDW — ..................................... 89
Terminals and Reference Value for LDW Camera
Unit .......................................................................... 91
CONSULT-II Function (LDW) .................................. 91
DESCRIPTION .................................................... 91
CONSULT-II BASIC OPERATION ....................... 91
WORK SUPPORT ............................................... 92
SELF-DIAG RESULTS ......................................... 92
DATA MONITOR .................................................. 93
ACTIVE TEST ...................................................... 94
Trouble Diagnosis ................................................... 95
HOW TO PERFORM TROUBLE DIAGNOSIS .... 95
PRELIMINARY INSPECTION .............................. 95
SYMPTOM CHART .............................................. 96
Power Supply and Ground Circuit Inspection ......... 96
DTC [C1B00] CAMERA UNIT MALF ...................... 97
DTC [C1B01] CAM AIMING INCMP ....................... 97
DTC [C1B02] VHCL SPD DATA MALF ................... 97
DTC [C1B03] ABNRML TEMP DETECT ................ 97
DTC [U1000] CAN COMM CIRCUIT ...................... 98
DTC [U1010] CONTROL UNIT (CAN) .................... 98
LDW Chime Circuit Inspection ................................ 98
LDW Switch Circuit Inspection ................................ 99
LDW Indicator Lamp Circuit Inspection .................102
Turn Signal Input Inspection .................................103
Electrical Component Inspection ..........................103
LDW SWITCH ....................................................103
Removal and Installation for LDW Camera Unit ...103
REMOVAL ..........................................................103
INSTALLATION ..................................................103
Removal and Installation for LDW Chime .............104
REMOVAL ..........................................................104
INSTALLATION ..................................................104
Removal and Installation for LDW Switch .............104
COMPASS ...............................................................105
System Description ...............................................105
DIRECTION DISPLAY .......................................105
Zone Variation Change Procedure ........................105
Correction Functions of the Compass Display ......105
AUTOMATIC CORRECTION .............................105
MANUAL CORRECTION PROCEDURE ...........105
Wiring Diagram – COMPAS – ...............................106
Removal and Installation of Compass ...................107
CLOCK ....................................................................108
Wiring Diagram — CLOCK — ...............................108
Removal and Installation of Clock .........................109
REMOVAL ..........................................................109
INSTALLATION ..................................................109