2009 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2009 Factory Service Manual DEF-1
DRIVER CONTROLS
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SECTION DEF
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CONTENTS
DEFOGGER
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Repair Work Fl

DEF-1
DRIVER CONTROLS
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SECTION DEF
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CONTENTS
DEFOGGER
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Repair Work Flow ................................................ ......3
FUNCTION DIAGNOSIS ...............................4
REAR WINDOW DEFOGGER SYSTEM ........ .....4
System Diagram .................................................. ......4
System Description ...................................................4
Component Parts Location ........................................5
Component Description .............................................5
DIAGNOSIS SYSTEM (BCM) .............................6
COMMON ITEM ..................................................... ......6
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .......................................................
6
REAR WINDOW DEFOGGER ............................... ......6
REAR WINDOW DEFOGGER : CONSULT-III
Function (BCM - REAR DEFOGGER) ......................
7
CAN COMMUNICATION .....................................8
System Description ............................................. ......8
COMPONENT DIAGNOSIS ..........................9
REAR WINDOW DEFOGGER SWITCH ........ .....9
Description .......................................................... ......9
Component Function Check ......................................9
Diagnosis Procedure .................................................9
REAR WINDOW DEFOGGER RELAY ..............10
Description .......................................................... ....10
Component Function Check ....................................10
Diagnosis Procedure ...............................................10
REAR WINDOW DEFOGGER POWER SUP-
PLY AND GROUND CIRCUIT ............................
11
Description .......................................................... ....11
Component Function Check ....................................11
Diagnosis Procedure ........................................... ....11
Component Inspection .............................................12
DOOR MIRROR DEFOGGER LH .....................13
Description ...............................................................13
Component Function Check ....................................13
Diagnosis Procedure ...............................................13
Component Inspection .............................................14
DOOR MIRROR DEFOGGER RH .....................15
Description ...............................................................15
Component Function Check ....................................15
Diagnosis Procedure ...............................................15
Component Inspection .............................................16
ECU DIAGNOSIS .........................................17
BCM (BODY CONTROL MODULE) .................17
Reference Value .................................................. ....17
Terminal Layout .......................................................19
Physical Values ................................................... ....19
Wiring Diagram ........................................................25
Fail Safe ..................................................................32
DTC Inspection Priority Chart ...............................33
DTC Index ...............................................................33
SYMPTOM DIAGNOSIS ..............................35
REAR WINDOW DEFOGGER AND DOOR
MIRROR DEFOGGER DO NOT OPERATE. ....
35
Diagnosis Procedure ........................................... ....35
REAR WINDOW DEFOGGER DOES NOT
OPERATE BUT BOTH OF DOOR MIRROR
DEFOGGER OPERATE. ...................................
36
Diagnosis Procedure ...............................................36
BOTH DOORS MIRROR DEFOGGER DON’T
OPERATE BUT REAR WINDOW DEFOG-
GER OPERATES ..............................................
37
Diagnosis Procedure ...............................................37
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual DEF-2
DRIVER SIDE DOOR MIRROR DEFOGGER
DOES NOT OPERATE. .....................................
38
Diagnosis Procedure ........................................... ...38
PASSENGER SIDE DOOR MIRROR DE

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INFINITI QX56 2009 Factory Service Manual DIAGNOSIS AND REPAIR WORKFLOWDEF-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Repair Work FlowINFOID:0000000003776328
DETAILED FLOW
1. OBTAIN

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INFINITI QX56 2009 Factory Service Manual DEF-4
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
FUNCTION DIAGNOSIS
REAR WINDOW DEFOGGER SYSTEM
System DiagramINFOID:0000000003776329
System DescriptionINFOID:0000000003776330
Operation Descri

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INFINITI QX56 2009 Factory Service Manual REAR WINDOW DEFOGGER SYSTEMDEF-5
< FUNCTION DIAGNOSIS >
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Component Parts LocationINFOID:0000000003776331
Component DescriptionINFOID:0000000003776332
ALLIA0314ZZ
1. A.

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INFINITI QX56 2009 Factory Service Manual DEF-6
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000004223690
APPLICATION ITEM
CONSULT-III perfor

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INFINITI QX56 2009 Factory Service Manual DIAGNOSIS SYSTEM (BCM)DEF-7
< FUNCTION DIAGNOSIS >
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REAR WINDOW DEFOGGER : CONSULT-III Function (BCM - REAR DEFOGGER)
INFOID:0000000004223691
DATA MONITOR
Monitor Item

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INFINITI QX56 2009 Factory Service Manual DEF-8
< FUNCTION DIAGNOSIS >
CAN COMMUNICATION
CAN COMMUNICATION
System DescriptionINFOID:0000000003776335
Refer to LAN-4, "System Description".
Revision: December 20092009 QX56

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