Infiniti QX56 (Z62). Manual - part 426

DLK-170

< SYMPTOM DIAGNOSIS >

DOOR DOES NOT LOCK/UNLOCK WITH DOOR LOCK AND UNLOCK SWITCH

• Confirm the operation after replacement.

Is the result normal?

YES

>> INSPECTION END

NO

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

DOOR DOES NOT LOCK/UNLOCK WITH DOOR KEY CYLINDER OPERATION

DLK-171

< SYMPTOM DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

DOOR DOES NOT LOCK/UNLOCK WITH DOOR KEY CYLINDER OPERA-
TION

Diagnosis Procedure

INFOID:0000000006226004

1.

CHECK POWER DOOR LOCK OPERATION

Check power door lock operation.
Does door lock/unlock with door lock and unlock switch?

YES

>> GO TO 2.

NO

>> Refer to 

DLK-168, "ALL DOOR : Diagnosis Procedure"

.

2.

CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch.
Refer to 

DLK-132, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

REPLACE BCM

• Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

• Confirm the operation after replacement.

Is the result normal?

YES

>> INSPECTION END

NO

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

DLK-172

< SYMPTOM DIAGNOSIS >

DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH

DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH

ALL DOOR REQUEST SWITCHES

ALL DOOR REQUEST SWITCHES : Description

INFOID:0000000006226005

All doors do not lock/unlock using all door request switches.

ALL DOOR REQUEST SWITCHES : Diagnosis Procedure

INFOID:0000000006226006

1.

CHECK REMOTE KEYLESS ENTRY FUNCTION

Check remote keyless entry function.

Does door lock/unlock with Intelligent Key button?

YES

>> GO TO 2.

NO

>> Refer to 

DLK-134, "Component Function Check"

.

2.

CHECK “LOCK/UNLOCK BY I-KEY” SETTING IN “WORK SUPPORT”

1.

Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.

2.

Select “LOCK/UNLOCK BY I-KEY” in “WORK SUPPORT” mode.

3.

Check “LOCK/UNLOCK BY I-KEY” setting in “WORK SUPPORT”.
Refer to 

DLK-41, "INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Set “ON” in “LOCK/UNLOCK BY I-KEY”.

3.

CHECK DOOR SWITCH

Check door switch.
Refer to 

DLK-117, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the malfunctioning parts.

4.

CHECK INSIDE KEY ANTENNA

Check inside key antenna.
• Instrument center: Refer to 

DLK-104, "DTC Logic"

.

• Console: Refer to 

DLK-106, "DTC Logic"

.

• Luggage room: Refer to 

DLK-108, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace the malfunctioning parts.

5.

CHECK OUTSIDE KEY ANTENNA

Check outside key antenna.
• Driver side: Refer to 

DLK-110, "DTC Logic"

.

• Passenger side: Refer to 

DLK-112, "DTC Logic"

.

• Back door: Refer to 

DLK-114, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace the malfunctioning parts.

6.

CHECK BACK DOOR SWITCH

Check back door switch.
Refer to 

DLK-120, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace the malfunctioning parts.

7.

REPLACE BCM

DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH

DLK-173

< SYMPTOM DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

• Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

• Confirm the operation after replacement.
Is the result normal?

YES

>> INSPECTION END

NO

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

DRIVER SIDE DOOR REQUEST SWITCH

DRIVER SIDE DOOR REQUEST SWITCH : Description

INFOID:0000000006226007

All doors do not lock/unlock using driver side door request switch.

DRIVER SIDE DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000006226008

1.

CHECK DOOR REQUEST SWITCH

Check front door request switch (driver side).
Refer to 

DLK-137, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

REPLACE BCM

• Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

• Confirm the operation after replacement.

Is the result normal?

YES

>> INSPECTION END

NO

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

PASSENGER SIDE DOOR REQUEST SWITCH

PASSENGER SIDE DOOR REQUEST SWITCH : Description

INFOID:0000000006226009

All doors do not lock/unlock using passenger side door request switch.

PASSENGER SIDE DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000006226010

1.

CHECK DOOR REQUEST SWITCH

Check front door request switch (passenger side).
Refer to 

DLK-137, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

REPLACE BCM

• Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

• Confirm the operation after replacement.

Is the result normal?

YES

>> INSPECTION END

NO

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

BACK DOOR REQUEST SWITCH

BACK DOOR REQUEST SWITCH : Description

INFOID:0000000006226011

All doors do not lock/unlock using back door request switch.

BACK DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000006226012

1.

CHECK BACK DOOR REQUEST SWITCH

Check back door request switch.