2007 INFINITI QX56 Factory Service Manual

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Page 2089 of 3061

INFINITI QX56 2007 Factory Service Manual GW-70
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
Schematic
INFOID:0000000003533069
WIWA2041E

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INFINITI QX56 2007 Factory Service Manual REAR WINDOW DEFOGGER
GW-71
< SERVICE INFORMATION >
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Wiring Diagram - DEF -INFOID:0000000003533070
WIWA0732E

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INFINITI QX56 2007 Factory Service Manual GW-72
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
WIWA1329E

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INFINITI QX56 2007 Factory Service Manual REAR WINDOW DEFOGGER
GW-73
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000003533071
Refer to BCS-11, "Terminal and Reference Value for BCM".

Page 2093 of 3061

INFINITI QX56 2007 Factory Service Manual GW-74
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
Work Flow
INFOID:0000000003533073
1. Check the symptom and customers requests.
2. Understand the outline of system. Refer to GW-68, "
System Descrip

GW-74
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
Work Flow
INFOID:0000000003533073
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-68, "
System Description".
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-74,
"Trouble Diagnosis Symptom Chart".
4. Does rear window defogger and door mirror defogger operate normally? YES: GO TO 5, NO: GO TO 3.
5. Inspection end.
CONSULT-II Function (BCM)INFOID:0000000003533074
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
Trouble Diagnosis Symptom ChartINFOID:0000000003533075
Make sure other systems using the signal of the following systems operate normally.
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Monitor item “Operation” Content
REAR DEF SW “ON/OFF”Displays “Press (ON)/others (OFF)” status determined with the rear window defogger
switch.
IGN ON SW “ON/OFF” Displays “IGN (ON)/OFF” status determined with the ignition switch signal.
Test item Content
REAR WINDOW DEFOGGER Gives a drive signal to the rear window defogger to activate it.
Symptom Diagnoses / Service procedure Refer to page
Rear window defogger and door mirror defoggers do not
operate.1. BCM power supply and ground circuit checkBCS-15
2. IPDM E/R auto active test checkPG-20
3. Rear window defogger switch circuit checkGW-75
4. Rear window defogger circuit checkGW-76
5. Replace IPDM E/ RPG-28

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INFINITI QX56 2007 Factory Service Manual REAR WINDOW DEFOGGER
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BCM Power Supply and Ground Circuit InspectionINFOID:0000000003533076
Refer to BCS-15, "BCM Power Supply and Ground C

Page 2095 of 3061

INFINITI QX56 2007 Factory Service Manual GW-76
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
1. Turn ignition switch OFF.
2. Disconnect BCM and front air control.
3. Check continuity between BCM connector M18 terminal 9 and
front air control

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INFINITI QX56 2007 Factory Service Manual REAR WINDOW DEFOGGER
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3.CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defo

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