Infiniti QX56 (JA60). Manual - part 259

BACK DOOR CONTROL UNIT

DLK-207

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

ABKIA1639GB

DLK-208

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BACK DOOR CONTROL UNIT

AAKIA0090GB

BACK DOOR CONTROL UNIT

DLK-209

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Fail Safe

INFOID:0000000005147031

Fail-safe operation

The automatic back door system operation will be interrupted if the back door control unit loses power, switch

input signals or communication with the BCM.

ABKIA0079GB

DLK-210

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

INTELLIGENT KEY SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000005147032

ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DO NOT OPERATE

NOTE:

• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to 

DLK-6, "Work Flow"

.

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column

in this order.

Conditions of Vehicle (Operating Conditions)

• “ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when setting on CONSULT-III.

• All doors are closed.

Symptom

Diagnosis/service procedure

Reference page

All doors and ignition switch do not respond to 
Intelligent Key command.

1.

Check Intelligent Key function and battery inspection.

DLK-106

2.

Check Intelligent Key unit power supply and ground circuit.

DLK-68

3.

Check remote keyless entry receiver.

DLK-103

4.

Check BCM power supply and ground circuit.

DLK-68

5.

Replace Intelligent Key unit.

DLK-106