2007 INFINITI M35 component

WATER OUTLET AND WATER PIPING
CO-31
[VQ35DE]
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Revision: 2007 April2007 M35/M45
WATER OUTLET AND WATER PIPINGPFP:11060
ComponentsNBS004R5
Removal and InstallationNBS004R6
REMOVAL
1. Remove engine room cover (RH and LH). Refer to EM-15, "ENGINE ROOM COVER" .
2. Remove engine cover with power tool. Refer to EM-21, "
INTAKE MANIFOLD COLLECTOR" .
3. Remove air duct (inlet) and air cleaner case assembly. Refer to EM-19, "
AIR CLEANER AND AIR DUCT"
.
4. Remove front engine undercover with power tool.
5. Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to CO-11, "
Changing Engine Coolant" and CO-24, "WATER PUMP" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine coolant on drive belts.
6. Remove radiator hose (upper) and heater hose.
7. Remove the following parts, when remove water outlet.

A/T fluid charging pipe: Refer to AT- 2 7 4 , "TRANSMISSION ASSEMBLY" .

Intake manifold collectors (upper and lower): Refer to EM-21, "INTAKE MANIFOLD COLLECTOR" .

Rocker cover (right bank): Refer to EM-53, "ROCKER COVER" .
8. Remove engine coolant temperature sensor as necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
1. Harness bracket 2. Water hose 3. Water bypass hose
4. Engine coolant temperature sensor 5. Gasket 6. Water outlet
7. Heater hose 8. Water pipe 9. Radiator hose (upper)
10. Heater pipe 11. Washer 12. O-ring
SBIA0484E

RADIATOR
CO-43
[VK45DE]
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Revision: 2007 April2007 M35/M45
RADIATORPFP:21400
ComponentsNBS004RG

Refer to GI-11, "Components" for symbols in the figure.
Removal and InstallationNBS004RH
WARNING:
Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from thermostat housing. Wrap a thick cloth around radiator cap. Slowly turn it a
quarter of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1. Remove the following parts:

Front engine undercover (power tool).

Engine room cover (RH and LH). Refer to EM-173, "ENGINE ROOM COVER" .

Air duct (inlet) and air cleaner case assembly. Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. Remove front grille and front grille support. Refer to EI-16, "
FRONT GRILLE" .
3. Drain engine coolant from radiator. Refer to CO-40, "
ENGINE COOLANT" .
1. Reservoir tank cap 2. Reservoir tank 3. Reservoir tank bracket
4. Reservoir tank hose 5. Radiator hose (upper) 6. Air guide
7. Mount bracket (RH) 8. Mounting rubber (upper) 9. A/C condenser
10. Mount bracket (LH) 11. Radiator 12. Mounting rubber (lower)
13. A/T fluid cooler hose 14. A/T fluid cooler hose 15. O-ring
16. Drain plug 17. Radiator hose (lower) 18. Cooling fan assembly
A. To thermostat housing B. To water suction pipe C. To transmission
PBIC4718E

RADIATOR (ALUMINUM TYPE)
CO-47
[VK45DE]
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Revision: 2007 April2007 M35/M45
RADIATOR (ALUMINUM TYPE)PFP:21460
ComponentsNBS004RK
Disassembly and AssemblyNBS004RL
PREPARATION
1. Attach spacer to tip of radiator plate pliers A (SST).
Spacer specification: 18 mm (0.71 in) wide × 8.5 mm (0.335 in)
long × 1.5 mm (0.059 in) thick.
2. Make sure that when radiator plate pliers A [SST: KV99103510 ( — )] are closed dimension H′′ is
approx. 7.6 mm (0.299 in).
3. Adjust dimension H′′ with spacer, if necessary.
DISASSEMBLY
1. Remove upper and lower tanks with radiator plate pliers B
(SST).
CAUTION:
Do not disassemble lower tank and A/T fluid cooler.
NOTE:
Regard lower tank and A/T fluid cooler as an assembly.
1. Upper tank 2. Sealing rubber 3. Core
4. Lower tank (with A/T fluid cooler)
PBIC3397E
SLC655CB
SLC903-A

COOLING FAN
CO-51
[VK45DE]
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Revision: 2007 April2007 M35/M45
COOLING FANPFP:21140
ComponentsNBS004RM
Removal and InstallationNBS004RN
REMOVAL
1. Remove engine room cover (RH and LH). Refer to EM-173, "ENGINE ROOM COVER" .
2. Remove air duct (inlet) and air cleaner case assembly. Refer to EM-177, "
AIR CLEANER AND AIR
DUCT" .
3. Drain engine coolant from radiator. Refer to CO-40, "
ENGINE COOLANT" .
4. Disconnect harness connector from cooling fan control module, and move harness to aside.
5. Remove radiator hose (upper). Refer to CO-43, "
RADIATOR" .
6. Remove cooling fan assembly.
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Note the following, and Install in the reverse order of removal.
CAUTION:
Only use genuine parts for radiator shroud and cooling fan mounting bolt and observe the specified
torque (to prevent radiator from being damaged).
INSPECTION AFTER INSTALLATION
Make sure that fan motors operate normally.
1. Sub-harness 2. Cooling fan control module 3. Sub-harness
4. Fan motor (LH) 5. Fan motor (RH) 6. Fan shroud
7. Cooling fan (RH) 8. Cooling fan (LH)
A. Apply on fan motor shaft.
: Apply Genuine High Strength Lock-
ing Sealant or equivalent.
KBIA3567J

WATER PUMP
CO-53
[VK45DE]
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Revision: 2007 April2007 M35/M45
WAT E R P U MPPFP:21020
ComponentsNBS004RP

Refer to GI-11, "Components" for symbols in the figure.
Removal and InstallationNBS004RQ
CAUTION:

When removing water pump, be careful not to get engine coolant on drive belts.

Water pump can not be disassembled and should be replaced as a unit.

After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester (commercial service tool) and radiator cap tester adapter (commercial service tool).
REMOVAL
1. Remove following parts:

Front engine undercover (power tool)

Engine cover: Refer to EM-179, "INTAKE MANIFOLD" .

Engine room cover (RH and LH): Refer to EM-173, "ENGINE ROOM COVER" .

Air duct (inlet): Refer to EM-177, "AIR CLEANER AND AIR DUCT" .

Alternator, water pump and A/C compressor belt: Refer to EM-174, "DRIVE BELTS" .
2. Drain engine coolant from drain plugs on radiator and both side of cylinder block. Refer to CO-40, "
Chang-
ing Engine Coolant" and EM-253, "DISASSEMBLY" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove water pump pulley.
4. Remove water pump.

Engine coolant will leak from cylinder block, so have a receptacle ready under vehicle.
CAUTION:

Handle the water pump vane so that it does not contact any other parts.

Do not disassemble water pump.
1. Water pump 2. Water pump pulley 3. Gasket
PBIC3396E

THERMOSTAT AND WATER CONTROL VALVE
CO-55
[VK45DE]
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Revision: 2007 April2007 M35/M45
THERMOSTAT AND WATER CONTROL VALVEPFP:21200
ComponentsNBS004RR

Refer to GI-11, "Components" for symbols in the figure.
Removal and InstallationNBS004RS
REMOVAL
1. Remove engine room cover (RH and LH). Refer to EM-173, "ENGINE ROOM COVER" .
2. Remove engine cover with power tool. Refer to EM-179, "
INTAKE MANIFOLD" .
3. Remove air duct (inlet). Refer to EM-177, "
AIR CLEANER AND AIR DUCT" .
4. Drain engine coolant from drain plugs on radiator and both side of cylinder block. Refer to CO-40, "
Chang-
ing Engine Coolant" and EM-253, "DISASSEMBLY" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
1. Water connector 2. O-ring 3. Rubber ring
4. Heater hose 5. Water control valve 6. Water outlet
7. Gasket 8. O-ring 9. Water outlet pipe
10. Thermostat housing 11. Radiator cap 12. Radiator hose (upper)
13. Thermostat 14. Rubber ring 15. Water inlet
16. Water suction hose 17. Water suction pipe 18. Radiator hose (lower)
19. Gasket 20. O-ring 21. Heater pipe
22. Heater hose
A. To radiator B. To intake manifold adapter C. To cylinder block
D. To cylinder head (right bank) E. To cylinder head (left bank) F. To heater core
PBIC3306E

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