Infiniti QX56 (JA60). Manual - part 230

DOOR LOCK ACTUATOR

DLK-91

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

1. Disconnect BCM and rear door lock actuator RH.

2. Check continuity between BCM connector (A) M20 terminals 65,

66 and ground. 

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

NO

>> Repair or replace harness or passenger select unlock relay.

BACK DOOR
BACK DOOR : Description

INFOID:0000000005146958

All vehicles equipped with an automatic back door system are not equipped with a back door lock actuator.

Opening and closing the back door is accomplished through the back door control unit assembly. Refer to

DLK-123, "Self-Diagnosis Procedure"

.

Terminals

Continuity

65

Ground

No

66

No

ALKIA0631ZZ

DLK-92

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

GLASS HATCH LOCK ACTUATOR

GLASS HATCH LOCK ACTUATOR

Diagnosis Procedure

INFOID:0000000005146959

Regarding Wiring Diagram information, refer to 

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

TEM —"

.

1.

CHECK GLASS HATCH LOCK ACTUATOR SIGNAL

1. Turn ignition switch OFF.

2. Check voltage between BCM connector M19 terminal 53 and

ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace BCM. Refer to 

BCS-59, "Removal and Installa-

tion"

.

2.

CHECK GLASS HATCH LOCK ACTUATOR HARNESS

1. Disconnect BCM and glass hatch lock actuator.

2. Check continuity between BCM connector (A) M19 terminal 53

and    glass hatch lock actuator connector (B) D711 terminal 3. 

3. Check continuity between BCM connector M19 terminals 53 and

ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK GLASS HATCH LOCK ACTUATOR GROUND CIRCUIT

Check continuity between glass hatch lock actuator connector D711

terminal 1 and ground. 

Is the inspection result normal?

YES

>> Replace glass hatch lock actuator. Refer to 

DLK-248,

"Door Lock Assembly"

.

NO

>> Repair or replace harness.

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M19

53

Ground

Glass hatch switch is 
turned to depressed

0 

→ Battery voltage 

for 300 ms

LIIA1938E

Terminals

Continuity

53

3

Yes

Terminals

Continuity

53

Ground

No

ALKIA1789ZZ

Terminals

Continuity

1

Ground

Yes

ALKIA1790ZZ

PASSENGER SELECT UNLOCK RELAY

DLK-93

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

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L

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A

B

DLK

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PASSENGER SELECT UNLOCK RELAY

Description

INFOID:0000000005146960

Controls the operation of both rear door lock actuators.

Component Function Check

INFOID:0000000005146961

1.

CHECK FUNCTION

1. Ensure "SELECTIVE UNLOCK FUNCTION" in WORK SUPPORT is enabled.

2. Use CONSULT-III to perform Active Test "DOOR LOCK".

3. Touch “ALL LOCK” or “ALL UNLOCK” to check that both rear doors work normally.
Is the inspection result normal?

YES

>> Passenger select unlock relay is OK.

NO

>> Refer to 

DLK-93, "Component Function Check"

.

Diagnosis Procedure

INFOID:0000000005146962

Regarding Wiring Diagram information, refer to 

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

TEM —"

.

1.

CHECK PASSENGER SELECT UNLOCK RELAY CIRCUIT

NOTE:

Passenger select unlock relay must remain connected during this step.

1. Turn ignition switch OFF.

2. Disconnect BCM and inoperative rear door lock actuator.

3. Check continuity between BCM connector (A) M20 terminal 66

and rear door lock actuator LH connector (B) D205 terminal 2 or

rear door lock actuator RH connector (C) D305 Terminal 2. 

4. Check continuity between BCM connector M20 terminal 66 and

body ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> GO TO 2

2.

CHECK PASSENGER SELECT UNLOCK RELAY INPUT

1. Disconnect passenger select unlock relay.

2. Check continuity between BCM connector (A) M20 terminal 66

and passenger select unlock relay connector (B) M7 terminal 3.

3. Check continuity between BCM connector (A) M20 terminal 66

and body ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness between BCM and relay.

3.

CHECK PASSENGER SELECT UNLOCK RELAY OUTPUT

66 - 2

: Continuity should exist.

66 - Ground

: Continuity should not exist.

ALKIA1634ZZ

66 - 3

: Continuity should exist.

66 - Ground

: Continuity should not exist.

ALKIA1635ZZ

DLK-94

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

PASSENGER SELECT UNLOCK RELAY

1. Check continuity between passenger select unlock relay con-

nector (A) M7 terminal 4 and rear door lock actuator LH connec-

tor (B) D205 terminal 2 or rear door lock actuator RH connector

(C) D305 terminal 2.

2. Check continuity between passenger select unlock relay con-

nector (A) M7 terminal 4 and ground.

Is the inspection result normal?

YES

>> Replace passenger select unlock relay.

NO

>> Repair or replace harness between relay and actuator.

4.

CHECK REAR DOOR LOCK ACTUATOR ASSEMBLY

1. Reconnect BCM.

2. Check voltage between rear door lock actuator connector LH (A)

D205 terminals 2 and 3 or rear door lock actuator connector RH

(B) D305 terminals 2 and 3.

3. Check voltage between rear door lock actuator connector LH (A)

D205 or rear door lock actuator connector RH (B) D305 termi-

nals 2 and 3.

Is the inspection result normal?

YES

>> Replace rear door lock actuator.

NO

>> Repair or replace harness between actuator and splice.

4 - 2

: Continuity should exist.

4 - Ground

: Continuity should not exist.

ALKIA1636ZZ

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

A: D205 (LH)

3

2

Main power window and 
door lock/unlock switch is 
turned to LOCK

0 

→ Battery voltage 

for 300 msec.

B: D305 (RH)

3

2

ALKIA1637ZZ

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

A: D205 (LH)

2

3

Main power window and 
door lock/unlock switch is 
turned to UNLOCK

0 

→ Battery voltage 

for 300 msec.

B: D305 (RH)

2

3

ALKIA1638ZZ