Infiniti QX56 (JA60). Manual - part 225

DOOR SWITCH

DLK-71

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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DOOR SWITCH

Description

INFOID:0000000005146926

Detects door open/close condition.

Component Function Check

INFOID:0000000005146927

1.

CHECK FUNCTION

With CONSULT-III

Check door switches in data monitor mode with CONSULT-III.

Is the inspection result normal?

YES

>> Door switch is OK.

NO

>> Refer to 

DLK-71, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146928

Regarding Wiring Diagram information, refer to 

DLK-157, "Wiring Diagram — POWER DOOR LOCK SYS-

TEM —"

.

1.

CHECK DOOR SWITCHES INPUT SIGNAL

With CONSULT-III

Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR

SW") in DATA MONITOR mode with CONSULT–III.

• When doors are open:

• When doors are closed:

Without CONSULT-III

Check voltage between BCM connector M18 or M19 terminals 12, 13, 43, 47, 48 and ground.

Monitor item

Condition

DOOR SW-DR

CLOSE 

→ OPEN: OFF → ON

DOOR SW-AS

DOOR SW-RL

DOOR SW-RR

BACK DOOR SW

DOOR SW-DR

:ON

DOOR SW-AS

:ON

DOOR SW-RL

:ON

DOOR SW-RR

:ON

BACK DOOR SW

:ON

DOOR SW-DR

:OFF

DOOR SW-AS

:OFF

DOOR SW-RL

:OFF

DOOR SW-RR

:OFF

BACK DOOR SW

:OFF

DLK-72

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR SWITCH

Is the inspection result normal?

YES

>> Door switch circuit is OK.

NO

>> GO TO 2

2.

CHECK DOOR SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect door switch and BCM.

3. Check continuity between BCM connector (A) M18, M19 terminals 12, 13, 43, 47, 48 and door switch con-

nector (B) B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or back door latch

connector (C) D503 terminal 7.

4. Check continuity between door switch connector (B) B8 (Front

LH),   B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal

2 or back door latch connector (C) D503 terminal 7 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

CHECK DOOR SWITCHES

• Disconnect door switch harness.

• Check continuity between door switch connector terminals.

Connec-

tor

Item

Terminals

Condition

Voltage (V)

(Approx.)

( + )

( – )

M19

Back door 

switch/latch

43

Ground

Open

↓

Closed

0
↓

Battery voltage

Front door 

switch LH

47

Rear door 

switch LH

48

M18

Front door 

switch RH

12

Rear door 
switch RH

13

LIIA1041E

2 - 47

:Continuity should exist

2 - 12

:Continuity should exist

2 - 48

:Continuity should exist

2 - 13

:Continuity should exist

7 - 43

:Continuity should exist

2 - Ground

:Continuity should not exist

7 - Ground

:Continuity should not exist

ALKIA0689ZZ

DOOR SWITCH

DLK-73

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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Is the inspection result normal?

YES

>> Door switch circuit is OK.

NO

>> (Front and rear doors) Replace door switch.

NO

>> (Back door) GO TO 4

4.

CHECK BACK DOOR SWITCH CIRCUIT

• Check continuity between door switch connector terminal and ground.

Is the inspection result normal?

YES

>> Replace back door switch.

NO

>> Repair or replace harness.

Switch

Terminals

Condition

Continuity

A: Door switch

(front and rear) 

2 – Ground

Open

Yes

Closed

No

B: Back door switch

7 – Ground

Open

Yes

Closed

No

ALKIA0690ZZ

Connector

Terminals

Continuity

Back door switch

8 – Ground

Yes

ALKIA0691ZZ

DLK-74

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK AND UNLOCK SWITCH

DOOR LOCK AND UNLOCK SWITCH

DRIVER SIDE
DRIVER SIDE : Description

INFOID:0000000005146929

Transmits door lock/unlock operation to BCM.

DRIVER SIDE : Component Function Check

INFOID:0000000005146930

1.

CHECK FUNCTION

With CONSULT-III

Check CDL LOCK SW, CDL UNLOCK SW in Data Monitor mode with CONSULT-III.

Is the inspection result normal?

YES

>> Door lock and unlock switch is OK.

NO

>> Refer to 

DLK-74, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000005146931

Regarding Wiring Diagram information, refer to 

DLK-157, "Wiring Diagram — POWER DOOR LOCK SYS-

TEM —"

.

1.

CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL

With CONSULT-III

Check main power window and door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA

MONITOR mode in CONSULT–III.

• When main power window and door lock/unlock switch is turned to LOCK:

• When main power window and door lock/unlock switch is turned to UNLOCK:

Without CONSULT-III

1. Remove key from ignition key cylinder.

2. Using an oscilloscope, check the signal between BCM connector M18 terminal 22 and ground when the

main power window and door lock/unlock switch is turned to LOCK or UNLOCK.

3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after

the door lock/unlock switch is turned to LOCK or UNLOCK.

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

CDL LOCK SW

:ON

CDL UNLOCK SW

:ON