2009 INFINITI QX56 Factory Service Manual

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Page 2441 of 4171

INFINITI QX56 2009 Factory Service Manual HRN-4
< COMPONENT DIAGNOSIS >
HORN
COMPONENT DIAGNOSIS
HORN
Wiring DiagramINFOID:0000000003776367
ABLWA0062GB
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual HORN
HRN-5
< COMPONENT DIAGNOSIS >
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AALIA0045GB
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual HRN-6
< COMPONENT DIAGNOSIS >
HORN
ABLIA0209GB
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual HORN
HRN-7
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
HORN
Removal and InstallationINFOID:0000000003776368
REMOVAL
1. Disconnect horn connector.
2. Remove

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INFINITI QX56 2009 Factory Service Manual INL-1
DRIVER CONTROLS
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SECTION INL
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CONTENTS
INTERIOR LIGHTING SYSTEM
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....

INL-1
DRIVER CONTROLS
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SECTION INL
A
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INL
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CONTENTS
INTERIOR LIGHTING SYSTEM
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
FUNCTION DIAGNOSIS ...............................6
INTERIOR ROOM LAMP CONTROL SYSTEM
.....
6
System Diagram .................................................. ......6
System Description ...................................................6
Component Parts Location ........................................7
Component Description .............................................8
ILLUMINATION CONTROL SYSTEM .................9
System Diagram .................................................. ......9
System Description ...................................................9
Component Parts Location ........................................9
Component Description ...........................................10
DIAGNOSIS SYSTEM (BCM) ............................11
COMMON ITEM ..................................................... ....11
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
11
INT LAMP .............................................................. ....11
INT LAMP : CONSULT-III Function (BCM - INT
LAMP) .....................................................................
12
BATTERY SAVER ................................................. ....13
BATTERY SAVER : CONSULT-III Function (BCM
- BATTERY SAVER) ...............................................
13
COMPONENT DIAGNOSIS .........................14
POWER SUPPLY AND GROUND CIRCUIT .. ....14
BCM ....................................................................... ....14
BCM : Diagnosis Procedure ....................................14
BATTERY SAVER OUTPUT/POWER SUP-
PLY CIRCUIT ................................................. ....
15
Description ........................................................... ....15
Component Function Check ....................................15
Diagnosis Procedure ...............................................15
INTERIOR ROOM LAMP CONTROL CIRCUIT
...
17
Description ........................................................... ....17
Component Function Check ....................................17
Diagnosis Procedure ...............................................17
STEP LAMP CIRCUIT .......................................19
Description ........................................................... ....19
Component Function Check ....................................19
Diagnosis Procedure ...............................................19
CARGO LAMP CONTROL CIRCUIT ................21
Description ...............................................................21
Component Function Check ....................................21
Diagnosis Procedure ...............................................21
IGNITION KEYHOLE ILLUMINATION CON-
TROL CIRCUIT .................................................
23
Description ...............................................................23
Component Function Check ....................................23
Diagnosis Procedure ...............................................23
INTERIOR ROOM LAMP CONTROL SYSTEM
...
25
Wiring Diagram .................................................... ....25
ILLUMINATION .................................................41
Wiring Diagram ........................................................41
ECU DIAGNOSIS .........................................55
BCM (BODY CONTROL MODULE) .................55
Reference Value .................................................. ....55
Terminal Layout .......................................................57
Physical Values ................................................... ....57
Wiring Diagram ........................................................63
Fail Safe ..................................................................67
DTC Inspection Priority Chart ...............................68
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual INL-2
DTC Index ..............................................................68
SYMPTOM DIAGNOSIS .............................70
INTERIOR LIGHTING SYSTEM SYMPTOMS ...70
Symptom Table .............

Page 2447 of 4171

INFINITI QX56 2009 Factory Service Manual DIAGNOSIS AND REPAIR WORKFLOWINL-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000003776238
OVERALL SEQUENCE
JPLIA0089GB
Re

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INFINITI QX56 2009 Factory Service Manual INL-4
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Find out what the customers concerns are.
>> GO TO 2
2.SYMPTOM CHECK
Verify the symptom from the cus

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