INFINITI FX35 2007 Service Manual

WATER PUMP CO-51
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Revision: 2006 July 2007 FX35/FX45
WAT E R P U MPPFP:21020
ComponentsNBS005S0
Removal and InstallationNBS003KR
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 [SST: EG17650301 (J33984-
A)].
REMOVAL
1. Drain engine coolant from drain plugs on radiator and both side of cylinder block. Refer to CO-38, "Chang-
ing Engine Coolant" and EM-249, "DISASSEMBLY" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
2. Remove following parts:

Engine front undercover

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" .
3. Remove fan coupling with cooling fan, and then fan and 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. Fan and water pump pulley 2. Water pump 3. Gasket
PBIC1538E

CO-52
[VK45DE]
WATER PUMP
Revision: 2006 July 2007 FX35/FX45
INSPECTION AFTER REMOVAL

Visually check that there is no significant dirt or rusting on water
pump body and vane.

Make sure there is no looseness in vane shaft, and that it turns
smoothly when rotated by hand.

If anything is found, replace water pump.
INSTALLATION
Install in the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J–33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-38, "
LEAK CHECK" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.
PBIC1539E

THERMOSTAT AND WATER CONTROL VALVE CO-53
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Revision: 2006 July 2007 FX35/FX45
THERMOSTAT AND WATER CONTROL VALVEPFP:21200
ComponentsNBS005S1
1. O-ring 2. Water outlet pipe 3. Thermostat housing
4. Radiator cap 5. Radiator hose (upper) 6. Water hose
7. Water hose 8. Water pipe 9. Water hose
10. Water hose 11. Thermostat 12. Rubber ring
13. Water inlet 14. Water suction hose 15. Water suction pipe
16. Radiator hose (lower) 17. Water hose 18. Water hose
19. O-ring 20. Heater pipe 21. Heater hose
22. Gasket 23. Water outlet 24. Water control valve
25. Rubber ring 26. O-ring 27. Water connector
28. Heater hose 29. Gasket
A. To radiator B. To oil cooler C. To cylinder block
PBIC4557E

CO-54
[VK45DE]
THERMOSTAT AND WATER CONTROL VALVE
Revision: 2006 July 2007 FX35/FX45

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003KS
REMOVAL
1. Drain engine coolant from drain plugs on radiator and both side of cylinder block. Refer to CO-38, "Chang-
ing Engine Coolant" and EM-249, "DISASSEMBLY" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
2. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
3. Remove air duct (inlet). Refer to EM-177, "
AIR CLEANER AND AIR DUCT" .
4. Disconnect water suction hose from water inlet.
5. Remove water inlet and thermostat. CAUTION:
Do not disassemble thermostat.
6. Remove intake manifolds (upper and lower). Refer to EM-179, "
INTAKE MANIFOLD" .
7. Disconnect radiator hose (upper) and water hoses from thermostat housing.
8. Disconnect heater hoses from water outlet and heater pipe.
9. Remove thermostat housing, water outlet pipe, water connector, water control valve, water outlet and heater pipe.
CAUTION:
Do not disassemble water control valve.
INSPECTION AFTER REMOVAL

Make sure that valves both in thermostat and water control valve are completely closing at normal temper-
ature.

Place a thread so that it is caught in the valves of the thermostat
and water control valve. Immerse fully in a container filled with
water. Heat while stirring. (The example in the figure shows ther-
mostat.)

The valve opening temperature is the temperature at which the
valve opens and falls from the thread.

Continue heating. Check the maximum valve lift.
NOTE:
The maximum valve lift standard temperature for water control
valve is the reference value.

After checking the maximum valve lift, lower the water tempera-
ture and check the valve closing temperature.
Standard values:

If the malfunctioning condition, when closing valve at normal temperature, or measured values are out of
the standard, replace thermostat and/or water control valve.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful not to spill engine coolant over engine room. Use rag to absorb engine coolant.
D. To heater core E. To cylinder head (left bank) F. To cylinder head (right bank)
G. To intake manifold adapter
SLC252B
Thermostat Water control valve
Valve opening temperature 80 - 84 °C (176 - 183 °F) 93.5 - 96.5 °C (200 - 206 °F)
Maximum valve lift More than 10 mm/ 95
°C
(0.39 in/ 203 °F) More than 8 mm/ 108
°C
(0.315 in/ 226 °F)
Valve closing temperature 77 °C (171 °F) 90 °C (194 °F)

THERMOSTAT AND WATER CONTROL VALVE CO-55
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Revision: 2006 July 2007 FX35/FX45
Thermostat and Water Control Valve

Install thermostat and water control valve with the whole circum-
ference of each flange part fit securely inside rubber ring. (The
example in the figure shows thermostat.)

Install thermostat with jiggle valve facing upwards. (The position
deviation may be within the range of ±10 degrees)

Install water control valve with the up-mark facing up and the
frame center part facing upwards. (The position deviation may
be within the range of ±10 degrees)
Water Outlet Pipe and Heater Pipe
First apply a neutral detergent to O-rings, then quickly insert the insertion parts of the water outlet pipe and
heater pipe into the installation holes.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-38, "
LEAK CHECK" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.
PBIC0157E
PBIC0158E

CO-56
[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 July 2007 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitNBS003KT
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
RADIATOR
Unit: kPa (kg/cm2 , psi)
THERMOSTAT
WATER CONTROL VALVE
Engine coolant capacity [With reservoir tank at (“MAX” level)] 10.0 (10-5/8, 8-3/4)
Reservoir tank engine coolant capacity (at “MAX” level) 0.8 (7/8, 3/4)
Radiator cap relief pressure Standard 78 - 98 (0.8 - 1.0, 11 - 14)
Limit 59 (0.6, 9)
Leakage testing pressure 157 (1.6, 23)
Valve opening temperature 80 - 84 °C (176 - 183 °F)
Maximum valve lift More than 10 mm/ 95 °C (0.39 in/ 203 °F)
Valve closing temperature 77 °C (171 °F)
Valve opening temperature 93.5 - 96.5 °C (200 - 206 °F)
Maximum valve lift More than 8 mm/ 108 °C (0.315 in/ 226 °F)
Valve closing temperature 90 °C (194 °F)

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
A
B
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Revision: 2006 July 2007 FX35/FX45
DRIVER INFORMATION SYSTEM
PRECAUTION ............................................................ 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 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
COMBINATION METER ILLUMINATION CON-
TROL ................................................................ ..... 8
FAIL-SAFE ....................................................... ..... 8
Component Parts and Harness Connector Location ..... 9
Arrangement of Combination Meter .................... ... 10
Circuit Diagram ................................................... .... 11
Wiring Diagram — METER — ............................. ... 12
Terminals and Reference Value for Combination
Meter ................................................................... ... 14
Terminals and Reference Value for Unified Meter
and A/C Amp. ...................................................... ... 15
Self-Diagnosis Mode of Combination Meter ........ ... 15
SELF-DIAGNOSIS FUNCTION ....................... ... 15
OPERATION PROCEDURE ............................ ... 15
CONSULT-II Function (METER A/C AMP) .......... ... 16
Trouble Diagnosis ............................................... ... 16
HOW TO PERFORM TROUBLE DIAGNOSIS ... 16
PRELIMINARY CHECK ................................... ... 17
Symptom Chart ................................................... ... 17
Power Supply and Ground Circuit Inspection ..... ... 18
Vehicle Speed Signal Inspection ......................... ... 19
Engine Speed Signal Inspection ......................... ... 20
Engine Coolant Temperature Signal Inspection .. ... 21
Fuel Level Sensor Signal Inspection ................... ... 21
Fuel Gauge Pointer Fluctuates, Indicator Wrong
Value or Varies .................................................... ... 23 Fuel Gauge Does Not Move to FULL Position ....
... 23
Odo/Trip Meter and Illumination Control Switch
Inspection ............................................................ ... 24
Electrical Components Inspection ....................... ... 24
ODO/TRIP METER AND ILLUMINATION CON-
TROL SWITCH ................................................. ... 24
FUEL LEVEL SENSOR UNIT .......................... ... 24
Removal and Installation of Combination Meter .. ... 25
Disassembly and Assembly of Combination Meter ... 25
DISASSEMBLY ................................................ ... 26
ASSEMBLY ...................................................... ... 27
Removal and Installation of Odo/Trip Meter and Illu-
mination Control Switch ....................................... ... 27
REMOVAL ........................................................ ... 27
INSTALLATION ................................................ ... 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 ...... ... 33
DTC [U1000] CAN Communication Circuit .......... ... 34
DTC [B2202] Meter Communication Circuit ........ ... 34
DTC [B2205] Vehicle Speed Circuit ..................... ... 37
Removal and Installation of Unified Meter and A/C
Amp. .................................................................... ... 37
REMOVAL ........................................................ ... 37
INSTALLATION ................................................ ... 37
WARNING LAMPS ................................................. ... 38
System Description .............................................. ... 38
OIL PRESSURE WARNING LAMP .................. ... 38
Schematic ............................................................ ... 39
Wiring Diagram — WARN — ............................... ... 40
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) .......................................................... ... 48

DI-2Revision: 2006 July 2007 FX35/FX45
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ............................................. ... 49
Component Inspection ......................................... ... 51
OIL PRESSURE SWITCH ................................ ... 51
A/T INDICATOR ..................................................... ... 52
System Description .............................................. ... 52
MANUAL MODE ............................................... ... 52
NOT MANUAL MODE ...................................... ... 52
Wiring Diagram — AT/IND — .............................. ... 53
A/T Indicator Is Malfunction ................................. ... 55
WARNING CHIME .................................................. ... 56
System Description .............................................. ... 56
POWER SUPPLY AND CIRCUIT ..................... ... 56
IGNITION KEY WARNING CHIME (WITHOUT
INTELLIGENT KEY) ......................................... ... 57
IGNITION KEY WARNING CHIME (WITH INTEL-
LIGENT KEY) ................................................... ... 57
LIGHT WARNING CHIME ................................ ... 58
SEAT BELT WARNING CHIME ........................ ... 58
Component Parts and Harness Connector Location ... 59
Schematic ............................................................ ... 60
Wiring Diagram — CHIME — .............................. ... 61
Terminals and Reference Value for BCM ............. ... 64
Terminals and Reference Value for Unified Meter
and A/C Amp. ...................................................... ... 65
Terminals and Reference Value for Combination
Meter ................................................................... ... 66
CONSULT-II Function (METER A/C AMP) .......... ... 66
CONSULT-II Function (BCM) ............................... ... 66
DIAGNOSIS ITEMS DESCRIPTION ................ ... 66
CONSULT-II BASIC OPERATION .................... ... 66
DATA MONITOR ............................................... ... 66
ACTIVE TEST .................................................. ... 67
SELF-DIAG RESULTS ..................................... ... 67
Trouble Diagnosis ................................................ ... 67
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 67
PRELIMINARY INSPECTION .......................... ... 68
Symptom Chart .................................................... ... 68
Power Supply and Ground Circuit Inspection ...... ... 68
Combination Meter Buzzer Circuit Inspection ...... ... 69
Front Door Switch (Driver Side) Signal Inspection ... 71
Key Switch Signal Inspection (Without Intelligent
Key) ..................................................................... ... 72
Key Switch and Ignition Knob Switch Signal Inspec-
tion (With Intelligent Key, When Mechanical Key Is
Used) ................................................................... ... 73
Lighting Switch Signal Inspection ........................ ... 74
Seat Belt Buckle Switch (Driver Side) Signal Inspec-
tion ....................................................................... ... 75
Component Inspection ......................................... ... 76
FRONT DOOR SWITCH (DRIVER SIDE) ........ ... 76
KEY SWITCH ................................................... ... 76
KEY SWITCH AND IGNITION KNOB SWITCH ... 76
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 76
LANE DEPARTURE WARNING SYSTEM ............. ... 77
Precautions for Lane Departure Warning (LDW)
system ................................................................. ... 77
System Description .............................................. ... 77 LDW SYSTEM OPERATION ............................
... 77
POWER SUPPLY AND GROUND CIRCUIT .... ... 79
Action Test ........................................................... ... 80
LDW SYSTEM RUNNING TEST ...................... ... 80
Camera Aiming Adjustment ................................. ... 80
OUTLINE .......................................................... ... 80
PREPARATION ................................................. ... 80
TARGET SETTING ........................................... ... 80
VEHICLE HEIGHT CHECK .............................. ... 83
AIMING ADJUSTMENT .................................... ... 83
Component Parts and Harness Connector Location ... 87
Schematic ............................................................ ... 88
Wiring Diagram — LDW — .................................. ... 89
Terminals and Reference Value for LDW Camera
Unit ....................................................................... ... 92
CONSULT-II Function (LDW) ............................... ... 92
DESCRIPTION ................................................. ... 92
CONSULT-II BASIC OPERATION .................... ... 92
WORK SUPPORT ............................................ ... 92
SELF-DIAG RESULTS ...................................... ... 92
DATA MONITOR ............................................... ... 93
ACTIVE TEST ................................................... ... 94
Trouble Diagnosis ................................................ ... 95
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 95
SYMPTOM CHART ........................................... ... 95
Preliminary Inspection .......................................... ... 95
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 ............. ... 98
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 .. .104
REMOVAL ......................................................... .104
INSTALLATION ................................................. .104
Removal and Installation for LDW Chime ............ .104
REMOVAL ......................................................... .104
INSTALLATION ................................................. .104
Removal and Installation for LDW Switch ............ .104
CAN COMMUNICATION ........................................ .105
System Description .............................................. .105
CAN Communication Unit .................................... .105
COMPASS .............................................................. .106
Precautions for Compass ..................................... .106
System Description .............................................. .106
Troubleshooting ................................................... .107
Zone Variation Setting Procedure ........................ .108
Calibration Procedure .......................................... .108
Wiring Diagram — COMPAS — ........................... .109
Removal and Installation of Compass .................. .110
CLOCK ................................................................... . 111

DI-3
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Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — CLOCK — .............................
. . 111
Removal and Installation of Clock ....................... .. 112
REMOVAL ........................................................ .. 112
INSTALLATION ................................................ .. 112
REAR VIEW MONITOR ......................................... ..113
System Description ............................................. .. 113
POWER SUPPLY AND GROUND ................... .. 113
AV COMMUNICATION LINE ............................ .. 113
REAR VIEW CAMERA OPERATION ............... .. 113
Component Parts and Harness Connector Location .. 114
Schematic ........................................................... .. 115
Wiring Diagram — R/VIEW — ............................ .. 116
Terminals and Reference Value for Rear View Cam-
era Control Unit ................................................... .. 119
CONSULT-II Function (REARVIEW CAMERA) ... . 120
CONSULT-II BASIC OPERATION .................... . 120 WORK SUPPORT ............................................
.120
DATA MONITOR .............................................. .120
Side Distance Guideline Correction ..................... .121
SIDE DISTANCE GUIDELINE CORRECTION
PROCEDURE .................................................. .121
Power Supply and Ground Circuit Inspection ...... .123
Rear View Is Not Displayed With The A/T Selector
Lever In R-Position .............................................. .124
The Rear View Image Is Distorted ....................... .128
Removal and Installation of Rear View Camera Con-
trol Unit ................................................................ .129
REMOVAL ........................................................ .129
INSTALLATION ................................................ .129
Removal and Installation of Rear View Camera .. .130
REMOVAL ........................................................ .130
INSTALLATION ................................................ .130

DI-4
PRECAUTION
Revision: 2006 July 2007 FX35/FX45
PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS002ZB
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 and SB section of this Service Man-
ual.
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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

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.