2007 INFINITI QX56 Factory Service Manual

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Page 1009 of 3061

INFINITI QX56 2007 Factory Service Manual CO-20
< SERVICE INFORMATION >
THERMOSTAT AND WATER PIPING
THERMOSTAT AND WATER PIPING
Removal and InstallationINFOID:0000000003531576
REMOVAL
Removal of Thermostat
1. Drain engine coolant from the rad

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INFINITI QX56 2007 Factory Service Manual THERMOSTAT AND WATER PIPING
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< SERVICE INFORMATION >
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3. Remove the engine room cover using power tool.
4. Disconnect the heater hose (heater core side).
5. Remove

Page 1011 of 3061

INFINITI QX56 2007 Factory Service Manual CO-22
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000003531577
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US ga

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INFINITI QX56 2007 Factory Service Manual
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ELECTRICAL
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CONTENTS
DRIVER INFORMATION SYSTEM
SERVICE INFORMATION .. ..........................3
PRECAUTION ..........................................

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ELECTRICAL
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CONTENTS
DRIVER INFORMATION SYSTEM
SERVICE INFORMATION .. ..........................3
PRECAUTION ................................................ .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ...................................................4
Commercial Service Tool .................................... ......4
COMBINATION METERS ...................................5
Component Parts and Harness Connector Loca-
tion ...................................................................... ......
5
System Description ...................................................5
Arrangement of Combination Meter ..........................7
Internal Circuit ...........................................................8
Wiring Diagram - METER - .......................................9
Combination Meter Harness Connector Terminal
Layout .....................................................................
11
Terminal and Reference Value for Combination
Meter .......................................................................
11
Self-Diagnosis Mode of Combination Meter ........ ....12
How to Proceed with Trouble Diagnosis ............. ....15
Preliminary Check ...................................................15
Symptom Chart .......................................................16
Power Supply and Ground Circuit Inspection .........16
Vehicle Speed Signal Inspection .............................17
Engine Oil Pressure Signal Inspection ....................17
Water Temperature Signal Inspection .....................18
Engine Speed Signal Inspection ......................... ....18
Fuel Level Sensor Unit Inspection ...................... ....18
Fuel Gauge Fluctuates, Indicates Wrong Value, or
Varies .................................................................. ....
20
Fuel Gauge Does Not Move to Full-position ...........20
Electrical Component Inspection ......................... ....21
Removal and Installation of Combination Meter .....21
COMPASS AND THERMOMETER ................ ....22
System Description ............................................. ....22
Wiring Diagram - COMPAS - ..................................23
Trouble Diagnosis ............................................... ....23
Calibration Procedure for Compass .................... ....24
WARNING LAMPS ............................................26
Schematic ............................................................ ....26
Wiring Diagram - WARN - .......................................27
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) .......................................................... ....
32
Oil Pressure Warning Lamp Does Not Turn Off
(Oil Pressure Is Normal) ...................................... ....
33
A/T INDICATOR ................................................34
Wiring Diagram - AT/IND - .......................................34
A/T Indicator Does Not Illuminate ............................34
WARNING CHIME .............................................36
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
36
System Description ..................................................36
CAN Communication System Description ...............37
Wiring Diagram - CHIME - .......................................38
Terminal and Reference Value for BCM ..................39
Terminal and Reference Value for Combination
Meter ................................................................... ....
39
How to Proceed with Trouble Diagnosis ..................40
Preliminary Check ............................................... ....40
CONSULT-II Function (BCM) ..................................40
All Warning Chimes Do Not Operate .......................41
Key Warning Chime and Light Warning Chime Do
Not Operate (Seat Belt Warning Chime Does Op-
erate) .......................................................................
41
Key Warning Chime Does Not Operate ...................42
Light Warning Chime Does Not Operate .................44
Seat Belt Warning Chime Does Not Operate ..........44
REAR SONAR SYSTEM ...................................46
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
46
System Description ..................................................46
Wiring Diagram - SONAR - ......................................48
Sonar Control Unit Harness Connector Terminal
Layout ......................................................................
50

Page 1013 of 3061

INFINITI QX56 2007 Factory Service Manual
DI-2
Terminal and Reference Value for Sonar Control
Unit .........................................................................
50
How to Proceed with Trouble Diagnosis .................51
Pre-di

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INFINITI QX56 2007 Factory Service Manual
PRECAUTIONDI-3
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SERVICE INFORMATION
PRECAUTION
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFO

Page 1015 of 3061

INFINITI QX56 2007 Factory Service Manual
DI-4
< SERVICE INFORMATION >
PREPARATION
PREPARATION
Commercial Service ToolINFOID:0000000003533478
Tool nameDescription
Power tool Loosening bolts and nuts.
PBIC0191E

Page 1016 of 3061

INFINITI QX56 2007 Factory Service Manual
COMBINATION METERSDI-5
< SERVICE INFORMATION >
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COMBINATION METERS
Component Parts and Har ness Connector LocationINFOID:0000000003533479
System DescriptionINFOID:00000

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