Infiniti QX56 (JA60). Manual - part 840

SEC-6

< BASIC INSPECTION >

[WITH INTELLIGENT KEY SYSTEM]

DIAGNOSIS AND REPAIR WORKFLOW

9.

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 10

10.

FINAL CHECK

When DTC was detected in step 9, perform DTC Confirmation Procedure or Component Function Check

again, and then check that the malfunctions have been fully repaired.

When symptom was described by the customer, refer to the 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 8

YES (Symptom remains)>>GO TO 6

NO

>> Inspection End.

PRE-INSPECTION FOR DIAGNOSTIC

SEC-7

< BASIC INSPECTION >

[WITH INTELLIGENT KEY SYSTEM]

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PRE-INSPECTION FOR DIAGNOSTIC

Basic Inspection

INFOID:0000000005147151

The engine start function, door lock function, power distribution system and NATS-IVIS/NVIS in the Intelligent

Key system are closely related to each other regarding control. Narrow down the functional area in question

by performing basic inspection to identify which function is malfunctioning. The vehicle security function can

operate only when the door lock and power distribution system are operating normally. Therefore, it is easy to

identify any factor unique to the vehicle security system by performing the vehicle security operation check

after basic inspection.

1.

CHECK DOOR LOCK OPERATION

Check the door lock for normal operation with the Intelligent Key controller and door request switch.

Successful door lock operation with the Intelligent Key and request SW indicates that the remote keyless entry

receiver and inside key antenna required for engine start are functioning normally.

Identify the malfunctioning point by referring to the DLK section if the door cannot be unlocked.
Can the door be locked with the Intelligent Key and door request switch?

YES

>> GO TO 2.

NO

>> Refer to 

DLK-210, "Symptom Table"

.

2.

CHECK ENGINE STARTING

Check that the engine starts when operating the Intelligent Key.
Does the engine start?

YES

>> GO TO 3.

NO

>> Refer to 

SEC-115, "Symptom Table"

.

3.

CHECK STEERING LOCKING

Does the steering lock when operating door switch after switching the power supply from ON position (or ACC

position) to LOCK position?

If door switch is malfunctioning, BCM cannot lock the steering. If BCM does not detect DTC, steering lock unit

is normal.
Does steering lock?

YES

>> GO TO 4.

NO

>> Refer to 

DLK-71, "Component Function Check"

.

4.

CHECK IGNITION KNOB SWITCH OPERATION

Press ignition knob to check switch operation.
Does the combination meter display any message?

YES

>> GO TO 5.

NO

>> Refer to 

SEC-53, "Ignition Knob Switch Check"

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5.

CHECK VEHICLE SECURITY SYSTEM

Check the vehicle security system for normal operation.

The vehicle security function can operate only when the door lock and power distribution functions are operat-

ing normally. 

Therefore, it is easy to identify any factor unique to the vehicle security by performing the vehicle security

operation check after this basic inspection.

>> Go to 

SEC-7, "Vehicle Security Operation Check"

.

Vehicle Security Operation Check

INFOID:0000000005147152

1.

INSPECTION START

Turn ignition switch “OFF”.

NOTE:

Before starting operation check, open front windows.

>> GO TO 2.

SEC-8

< BASIC INSPECTION >

[WITH INTELLIGENT KEY SYSTEM]

PRE-INSPECTION FOR DIAGNOSTIC

2.

CHECK SECURITY INDICATOR LAMP

1. Lock doors using Intelligent Key or mechanical key.

2. Check that security indicator lamp illuminates for 30 seconds.
Does the security indicator lamp illuminate?.

YES

>> GO TO 3.

NO

>> Perform diagnosis and repair. Refer to 

SEC-58, "Component Function Check"

.

3.

CHECK ALARM FUNCTION

1. After 30 seconds, security indicator lamp will start to blink.

2. Open any door or hood before unlocking with Intelligent Key or mechanical key, or open back door or

glass hatch without the presence of Intelligent Key.

Does the alarm function properly?

YES

>> GO TO 4.

NO

>> Check the following.

• The vehicle security system does not phase in alarm mode. Refer to 

SEC-116, "Symptom

Table"

.

• Alarm (horn and headlamps) does not operate. Refer to 

SEC-116, "Symptom Table"

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4.

CHECK ALARM CANCEL OPERATION

Unlock any door using Intelligent Key or mechanical key.
Does the alarm (horn and headlamps) stop?

YES

>> Inspection End.

NO

>> Check door lock function. Refer to 

DLK-21, "INTELLIGENT KEY : System Description"

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INSPECTION AND ADJUSTMENT

SEC-9

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[WITH INTELLIGENT KEY SYSTEM]

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INSPECTION AND ADJUSTMENT

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

INFOID:0000000005147064

Refer to the CONSULT-III Operation Manual.

ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description

INFOID:0000000005147065

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 an 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.

• 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:0000000005147066

1.

PERFORM ECM RE-COMMUNICATING FUNCTION

1. Install ECM.

2. Using a registered 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.