2011 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2011 Factory Service Manual
PCS-48
< WIRING DIAGRAM >[POWER DISTRIBUTION SYSTEM]
POWER DISTRIBUTION SYSTEM
JCMWM8331GB
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
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Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
PCS-50
< WIRING DIAGRAM >[POWER DISTRIBUTION SYSTEM]
POWER DISTRIBUTION SYSTEM
JCMWM8333GB
Revision: 2010 May2011 QX56

Page 3892 of 5598

INFINITI QX56 2011 Factory Service Manual
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Revision: 2010 May2011 QX56

Page 3893 of 5598

INFINITI QX56 2011 Factory Service Manual
PCS-52
< WIRING DIAGRAM >[POWER DISTRIBUTION SYSTEM]
POWER DISTRIBUTION SYSTEM
JCMWM8335GB
Revision: 2010 May2011 QX56

Page 3894 of 5598

INFINITI QX56 2011 Factory Service Manual
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DIAGNOSIS AND REPAIR WORK FLOWPCS-53
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:000000000622020

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INFINITI QX56 2011 Factory Service Manual
PCS-54
< BASIC INSPECTION >[POWER DISTRIBUTION SYSTEM]
DIAGNOSIS AND REPAIR WORK FLOW
1.GET INFORMATION ABOUT SYMPTOM
Get detailed information from the customer about the symptom (the condition and

PCS-54
< BASIC INSPECTION >[POWER DISTRIBUTION SYSTEM]
DIAGNOSIS AND REPAIR WORK FLOW
1.GET INFORMATION ABOUT SYMPTOM
Get detailed information from the customer about the symptom (the condition and the environment when the
incident/malfunction occurs).
>> GO TO 2.
2.CHECK DTC
1. Check DTC for BCM and IPDM E/R.
2. Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data (Pri nt them out with CONSULT-III.)
- Erase DTC.
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
3. Check related service bulletins for information.
Are any symptoms described and any DTC detected?
Symptom is described, DTC is displayed>>GO TO 3.
Symptom is described, DTC is not displayed>>GO TO 4.
Symptom is not described, DTC is displayed>>GO TO 5.
3.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in the “DATA MO NITOR” mode and check real time diagnosis results.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
4.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in the “DATA MO NITOR ” mode and check real time diagnosis results.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 6.
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the display ed DTC, and then check that DTC is detected again.
At this time, always connect CONSULT-III to the vehicle, and check diagnostic results in real time.
If two or more DTCs are detected, refer to BCS-56, "
DTCInspectionPriorityChart", and determine trouble
diagnosis order.
NOTE:
Perform Component Function Check if DTC Confirmati on Procedure is not included in Service Manual. This
simplified check procedure is an effective alternativ e, although DTC cannot be detected during this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC Confirmation
Procedure.
Is DTC detected?
YES >> GO TO 7.
NO >> Refer to GI-40, "
Intermittent Incident".
6.DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
>> GO TO 7.
7.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required for the circuit check in the Diagnostic Procedure.
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
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Is malfunctioning part detected?
YES >> GO TO 8.
NO >> Check voltage of related

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