removal INFINITI FX35 2006 Service Manual

CO-44
[VK45DE]
RADIATOR
Revision: 2006 December 2006 FX35/FX45
CAUTION:
When installing a radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorNBS003KM
Check radiator for mud or clogging. If necessary, clean radiator as follows:
CAUTION:

Be careful not to bend or damage the radiator fins.

When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radi-
ator shroud and horns. Then tape the harness and electrical connectors to prevent water from
entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.

Use compressed air lower than 490 kPa (5 kg/cm2 , 71 psi) and keep distance more than 30 cm (11.8
in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.

COOLING FAN CO-49
[VK45DE]
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Revision: 2006 December 2006 FX35/FX45
COOLING FANPFP:21140
Components (Crankshaft Driven type)NBS005RY
Removal and InstallationNBS003KO
REMOVAL
1. Remove air duct (inlet). Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. Remove engine front undercover with power tool.
3. Remove radiator shroud (lower). Refer to CO-41, "
RADIATOR" .
4. Remove drive belts. Refer to EM-174, "
DRIVE BELTS" .
5. Remove fan coupling and cooling fan assembly. CAUTION:
Do not damage or scratch radiator core when removing.
6. Remove cooling fan from fan coupling.
INSPECTION AFTER REMOVAL
Fan Coupling
Inspect fan coupling for oil leakage and bimetal conditions.

If anything is found, replace fan coupling.
Cooling Fan
Inspect cooling fan for crack or unusual bend.

If anything is found, replace cooling fan.
INSTALLATION
Note the following, install in the reverse order of removal.

Install cooling fan with its front mark “F” facing front of vehicle. Refer to CO-49, "Removal and Installation"
.
1. Cooling fan 2. Fan coupling 3. Fan pulley
4. Water pump
PBIC1537E
SLC072

CO-50
[VK45DE]
COOLING FAN
Revision: 2006 December 2006 FX35/FX45
Components (Motor Driven Type)NBS005RZ
Removal and InstallationNBS003KP
REMOVAL
1. Remove front grille. Refer to EI-22, "FRONT GRILLE" .
2. Disconnect harness connector from fan motor.
3. Remove cooling fan assembly. CAUTION:
Do not damage or scratch A/C condenser when removed.
INSTALLATION
Install in the reverse order of removal.

Cooling fan is controlled by ECM. For details. Refer to EC-1171, "DTC P1217 ENGINE OVER TEMPER-
ATURE" .
Disassembly and Assembly (Motor Driven Type)NBS003KQ
DISASSEMBLY
1. Remove cooling fan from fan motor.
2. Remove fan motor from fan grille.
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.

If anything is found, replace cooling fan.
ASSEMBLY
Assemble in the reverse order of disassembly.
1. Cooling fan 2. Fan grille 3. Fan motor
PBIC1666E

WATER PUMP CO-51
[VK45DE]
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Revision: 2006 December 2006 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 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 pulley 2. Water pump 3. Gasket
PBIC1538E

CO-52
[VK45DE]
WATER PUMP
Revision: 2006 December 2006 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

CO-54
[VK45DE]
THERMOSTAT AND WATER CONTROL VALVE
Revision: 2006 December 2006 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)

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION DI
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Revision: 2006 December 2006 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 December 2006 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. ...................................................... ... 68
Terminals and Reference Value for Combination
Meter ................................................................... ... 69
CONSULT-II Function (METER A/C AMP) .......... ... 69
CONSULT-II Function (BCM) ............................... ... 69
DIAGNOSIS ITEMS DESCRIPTION ................ ... 69
CONSULT-II BASIC OPERATION .................... ... 69
DATA MONITOR ............................................... ... 69
ACTIVE TEST .................................................. ... 70
SELF-DIAG RESULTS ..................................... ... 70
Trouble Diagnosis ................................................ ... 70
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 70
PRELIMINARY INSPECTION .......................... ... 71
Symptom Chart .................................................... ... 71
Power Supply and Ground Circuit Inspection ...... ... 71
Combination Meter Buzzer Circuit Inspection ...... ... 72
Front Door Switch (Driver Side) Signal Inspection ... 74
Key Switch Signal Inspection (Without Intelligent
Key) ..................................................................... ... 75
Key Switch and Ignition Knob Switch Signal Inspec-
tion (With Intelligent Key, When Mechanical Key Is
Used) ................................................................... ... 76
Lighting Switch Signal Inspection ........................ ... 77
Seat Belt Buckle Switch (Driver Side) Signal Inspec-
tion ....................................................................... ... 78
Component Inspection ......................................... ... 79
FRONT DOOR SWITCH (DRIVER SIDE) ........ ... 79
KEY SWITCH ................................................... ... 79
KEY SWITCH AND IGNITION KNOB SWITCH ... 79
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 79
LANE DEPARTURE WARNING SYSTEM ............. ... 80
Precautions for Lane Departure Warning (LDW)
system ................................................................. ... 80
System Description .............................................. ... 80 LDW SYSTEM OPERATION ............................
... 80
POWER SUPPLY AND GROUND CIRCUIT .... ... 82
Action Test ........................................................... ... 83
LDW SYSTEM RUNNING TEST ...................... ... 83
Camera Aiming Adjustment ................................. ... 83
OUTLINE .......................................................... ... 83
PREPARATION ................................................. ... 83
TARGET SETTING ........................................... ... 83
VEHICLE HEIGHT CHECK .............................. ... 86
AIMING ADJUSTMENT .................................... ... 86
Component Parts and Harness Connector Location ... 90
Schematic ............................................................ ... 91
Wiring Diagram — LDW — .................................. ... 92
Terminals and Reference Value for LDW Camera
Unit ....................................................................... ... 95
CONSULT-II Function (LDW) ............................... ... 95
DESCRIPTION ................................................. ... 95
CONSULT-II BASIC OPERATION .................... ... 95
WORK SUPPORT ............................................ ... 95
SELF-DIAG RESULTS ...................................... ... 95
DATA MONITOR ............................................... ... 96
ACTIVE TEST ................................................... ... 97
Trouble Diagnosis ................................................ ... 98
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 98
SYMPTOM CHART ........................................... ... 98
Preliminary Inspection .......................................... ... 98
Power Supply and Ground Circuit Inspection ...... ... 99
DTC [C1B00] CAMERA UNIT MALF ................... .100
DTC [C1B01] CAM AIMING INCMP .................... .100
DTC [C1B02] VHCL SPD DATA MALF ................ .100
DTC [C1B03] ABNRML TEMP DETECT ............. .101
DTC [U1000] CAN COMM CIRCUIT ................... .101
DTC [U1010] CONTROL UNIT (CAN) ................. .101
LDW Chime Circuit Inspection ............................. .101
LDW Switch Circuit Inspection ............................. .102
LDW Indicator Lamp Circuit Inspection ................ .105
Turn Signal Input Inspection ................................ .106
Electrical Component Inspection ......................... .106
LDW SWITCH ................................................... .106
Removal and Installation for LDW Camera Unit .. .107
REMOVAL ......................................................... .107
INSTALLATION ................................................. .107
Removal and Installation for LDW Chime ............ .107
REMOVAL ......................................................... .107
INSTALLATION ................................................. .107
Removal and Installation for LDW Switch ............ .107
CAN COMMUNICATION ........................................ .108
System Description .............................................. .108
CAN Communication Unit .................................... .108
COMPASS .............................................................. .109
Precautions for Compass ..................................... .109
System Description .............................................. .109
Troubleshooting ................................................... .110
Zone Variation Setting Procedure ........................ . 111
Calibration Procedure .......................................... . 111
Wiring Diagram — COMPAS — ........................... .112
Removal and Installation of Compass .................. .113
CLOCK ................................................................... .114

DI-3
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Revision: 2006 December 2006 FX35/FX45 Wiring Diagram — CLOCK — .............................
.. 114
Removal and Installation of Clock ....................... .. 115
REMOVAL ........................................................ .. 115
INSTALLATION ................................................ .. 115
REAR VIEW MONITOR ......................................... ..116
System Description ............................................. .. 116
POWER SUPPLY AND GROUND ................... .. 116
AV COMMUNICATION LINE ............................ .. 116
REAR VIEW CAMERA OPERATION ............... .. 116
Component Parts and Harness Connector Location .. 117
Schematic ........................................................... .. 118
Wiring Diagram — R/VIEW — ............................ .. 119
Terminals and Reference Value for Rear View Cam-
era Control Unit ................................................... . 122
CONSULT-II Function (REARVIEW CAMERA) ... . 123
CONSULT-II BASIC OPERATION .................... . 123 WORK SUPPORT ............................................
.123
DATA MONITOR .............................................. .123
Side Distance Guideline Correction ..................... .124
SIDE DISTANCE GUIDELINE CORRECTION
PROCEDURE .................................................. .124
Power Supply and Ground Circuit Inspection ...... .126
Rear View Is Not Displayed With The A/T Selector
Lever In R-Position .............................................. .127
The Rear View Image Is Distorted ....................... .131
Removal and Installation of Rear View Camera Con-
trol Unit ................................................................ .132
REMOVAL ........................................................ .132
INSTALLATION ................................................ .132
Removal and Installation of Rear View Camera .. .133
REMOVAL ........................................................ .133
INSTALLATION ................................................ .133

DI-4
PRECAUTION
Revision: 2006 December 2006 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.