Infiniti QX56 (Z62). Manual - part 378

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< WIRING DIAGRAM >

REAR WINDOW DEFOGGER SYSTEM

JCLWM5506GB

REAR WINDOW DEFOGGER SYSTEM

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< WIRING DIAGRAM >

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JCLWM5507GB

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

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DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

2.

CHECK FOR DTC

Perform self diagnosis with CONSULT-III
Is any DTC detected?

YES-1 >> BCM: Refer to 

BCS-57, "DTC Index"

.

YES-2 >> IPDM E/R: Refer to 

PCS-22, "DTC Index"

.

NO

>> GO TO 3.

3.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 4.

4.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 3. Then identify where to start perform-
ing the diagnosis based on possible causes and symptoms.

>> GO TO 5.

5.

IDENTIFY MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 6.

6.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 7.

7.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 3.

Are all malfunctions corrected?

YES

>> INSPECTION END

NO

>> GO TO 4.

REAR WINDOW DEFOGGER SWITCH

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< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

REAR WINDOW DEFOGGER SWITCH

Component Function Check

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1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch ON. 

Is the inspection result normal?

YES

>> Rear window defogger switch function is OK.

NO

>> Refer to 

DEF-25, "Diagnosis Procedure"

Diagnosis Procedure

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1.

CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH)

Does multifunction switch operate normally?
Refer to 

AV-199, "Symptom Table"

.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace multifunction switch (rear window defogger switch).