Infiniti G37 Coupe. Manual - part 362

 

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Infiniti G37 Coupe. Manual - part 362

 

 

DIAGNOSIS AND REPAIR WORKFLOW

DLK-9

< BASIC INSPECTION >

[INTELLIGENT KEY SYSTEM]

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1.

GET INFORMATION FOR SYMPTOM

Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).

>> GO TO 2.

2.

CHECK DTC

1.

Check DTC.

2.

Perform the following procedure if DTC is displayed.

-

Record DTC and freeze frame data (Print 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.

Is any symptom 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 “DATA MONITOR” 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 “DATA MONITOR ” 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 displayed 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 

DLK-154, "DTC Inspection Priority Chart"

 and determine trouble

diagnosis order.
NOTE:
Perform Component Function Check if DTC Confirmation Procedure is not included in Service Manual. This
simplified check procedure is an effective alternative though 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-38, "Intermittent Incident"

.

6.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE

Detect malfunctioning system according to 

DLK-158, "Symptom Table"

 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.

DLK-10

< BASIC INSPECTION >

[INTELLIGENT KEY SYSTEM]

DIAGNOSIS AND REPAIR WORKFLOW

Is malfunctioning part detected?

YES

>> GO TO 8.

NO

>> Check voltage of related BCM terminals using CONSULT-III.

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.

2.

Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-
ment.

3.

Check DTC. If DTC is displayed, erase it.

>> GO TO 9.

9.

FINAL CHECK

When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunction has been repaired securely.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that
the symptom is not detected.

Does the symptom reappear?

YES (DTC is detected)>>GO TO 7.
YES (Symptom remains)>>GO TO 6.
NO

>> INSPECTION END

INSPECTION AND ADJUSTMENT

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< BASIC INSPECTION >

[INTELLIGENT KEY SYSTEM]

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000001683008

Perform the system initialization when replacing BCM, replacing Intelligent Key or registering an additional
Intelligent Key.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

INFOID:0000000001683009

Refer to the CONSULT-III operation manual for the initialization procedure.

ECM RE-COMMUNICATING FUNCTION

ECM RE-COMMUNICATING FUNCTION : Description

INFOID:0000000001907894

Performing following procedure can automatically perform re-communication of ECM and BCM, but only when
the ECM has been replaced with a new one (*1).
*1: New one means a virgin ECM which has never been energized on-board.
(In this step, initialization procedure by CONSULT-III is not necessary)
NOTE:
• When registering new Key IDs or replacing the ECM that is not brand new, refer to CONSULT-III Oper-

ation Manual NATS-IVIS/NVIS.

• If multiple keys are attached to the key holder, separate them before work.
• Distinguish keys with unregistered key ID from those with registered ID.

ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement

INFOID:0000000001907895

1.

PERFORM ECM RE-COMMUNICATING FUNCTION

1.

Install ECM.

2.

Insert the registered Intelligent Key (*2), turn ignition switch to “ON”.
*2: To perform this step, use the key that has been used before performing ECM replacement.

3.

Maintain ignition switch in “ON” position for at least 5 seconds.

4.

Turn ignition switch to “OFF”.

5.

Start engine.

Can engine be started?

YES

>> Procedure is completed.

NO

>> Initialize control unit. Refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.

DLK-12

< FUNCTION DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

FUNCTION DIAGNOSIS

DOOR LOCK FUNCTION

DOOR LOCK AND UNLOCK SWITCH

DOOR LOCK AND UNLOCK SWITCH : System Diagram

INFOID:0000000001683010

DOOR LOCK AND UNLOCK SWITCH : System Description

INFOID:0000000001683011

DOOR LOCK FUNCTION

Functions Available by Operating the Door Lock and Unlock Switches on Driver Door and Passenger Door

• Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and

fuel lid lock actuator are locked.

• Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors and

fuel lid lock actuator are unlocked.

Functions Available by Operating the Key Cylinder Switch on Driver Door

• Interlocked with the locking operation of door key cylinder, door lock actuators of all doors and fuel lid lock

actuator are locked.

Selective Unlock Operation

• When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.
• When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock

actuators on all doors are unlocked.

Select unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT”. Refer to 

DLK-51, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Key Reminder System

Refer to 

DLK-46, "System Description"

.

JMKIA1393GB

Switch

Input/output signal to BCM

BCM function

Actuator

Door lock and unlock switch 
(Driver side)

Door lock/unlock signal

Door lock /unlock control

Door lock actuator

Door lock and unlock switch 
(Passenger side)

Door key cylinder switch

 

 

 

 

 

 

 

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