Infiniti QX56 (Z62). Manual - part 1164

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< WIRING DIAGRAM >

[WITH INTELLIGENT KEY SYSTEM]

SECURITY CONTROL SYSTEM

JCKWM4471GB

SECURITY CONTROL SYSTEM

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< WIRING DIAGRAM >

[WITH INTELLIGENT KEY SYSTEM]

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JCKWM4472GB

SEC-48

< BASIC INSPECTION >

[WITH INTELLIGENT KEY SYSTEM]

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

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OVERALL SEQUENCE

DETAILED FLOW

JMKIA3449GB

DIAGNOSIS AND REPAIR WORK FLOW

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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 of “ENGINE”, “BCM” and “IPDM E/R” using CONSULT-III.

2.

Perform the following procedure if DTC is detected.

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Record DTC and freeze frame data (Print them out using CONSULT-III.)

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Erase DTC.

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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 detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.

3.

CONFIRM THE SYMPTOM

Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle, and check self diagnostic results in real time.
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, and check self diagnostic results in real time.
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 detected DTC, and then check that DTC is detected again.
At this time, always connect CONSULT-III to the vehicle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to 

BCS-56, "DTC Inspection Priority Chart"

 (BCM) or 

PCS-22,

"DTC Index"

 (IPDM E/R), and determine trouble diagnosis order.

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 is described based on open and short circuit inspection. 

Is malfunctioning part detected?

YES

>> GO TO 8.

NO

>> Check voltage of related BCM terminals or IPDM E/R terminals using CONSULT-III.

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.