Infiniti M35/M45 Y50. Manual - part 242

POWER DOOR LOCK SYSTEM

BL-37

C

D

E

F

G

H

J

K

L

M

A

B

BL

Check Door Lock Actuator/Driver Side

NIS001X1

1. 

CHECK OUTPUT SIGNAL

Check voltage between BCM connector and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Replace BCM.

2. 

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM and front door lock actuator driver side connector.

3.

Check continuity between BCM connector and front door lock
actuator driver side connector. 

4.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Replace front door lock actuator (driver side).

NG

>> Repair or replace harness.

Terminals

Condition of 

door lock and 
unlock switch

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M2

50

Ground

Lock

0 

→

 Battery voltage 

→

 0

44

Unlock

0 

→

 Battery voltage 

→

 0

PIIB6060E

A

B

Continuity 

BCM connector

Terminal

Door lock actu-

ator connector

Terminal

M2

50

D14

2

Yes

44

1

A

Continuity 

BCM connector

Terminal

M2

50

Ground

No

44

PIIB6061E

BL-38

POWER DOOR LOCK SYSTEM

Check Door Lock Actuator/Passenger Side

NIS001X2

1. 

CHECK DOOR LOCK ACTUATOR SIGNAL

Check voltage between BCM connector and ground.

OK or NG

OK

>>  GO TO 2.

NG

>> Replace BCM.

2. 

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM and front door lock actuator passenger side connectors. 

2.

Check continuity between BCM connector and front door lock
actuator passenger side. 

3.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Replace front door lock actuator (passenger side).

NG

>> Repair or replace harness.

Terminals

Condition of 

door lock and 
unlock switch

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M2

50

Ground

Lock

0 

→

 Battery voltage 

→

 0

M3

70

Unlock

0 

→

 Battery voltage 

→

 0

PIIB6062E

A

B

Continuity 

BCM connector

Terminal

Door lock actu-

ator connector

Terminal

M2

50

D44

2

Yes

M3

70

1

A

Continuity 

BCM connector

Terminal

M2

50

Ground

No

M3

70

PIIB6063E

POWER DOOR LOCK SYSTEM

BL-39

C

D

E

F

G

H

J

K

L

M

A

B

BL

Check Door Lock Actuator/Rear LH

NIS001X3

1. 

CHECK DOOR LOCK ACTUATOR SIGNAL

Check voltage between BCM connector and ground.

OK or NG

OK

>>  GO TO 2.

NG

>> Replace BCM.

2. 

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM and rear door lock actuator LH connectors. 

2.

Check continuity between BCM connector and rear door lock
actuator LH connectors. 

3.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Replace door lock actuator/rear LH.

NG

>> Repair or replace harness.

Check Door Lock Actuator/Rear RH

NIS001X4

1. 

CHECK DOOR LOCK ACTUATOR SIGNAL

Check voltage between BCM connector and ground.

OK or NG

OK

>>  GO TO 2.

NG

>> Replace BCM.

Terminals

Condition of 

door lock and 
unlock switch

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M2

50

Ground

Lock

0 

→

 Battery voltage 

→

 0

51

Unlock

0 

→

 Battery voltage 

→

 0

PIIB6064E

A

B

Continuity 

BCM connector

Terminal

Door lock actu-

ator connector

Terminal

M2

50

D59

2

Yes

51

1

A

Continuity 

BCM connector

Terminal

M2

50

Ground

No

51

PIIB6383E

Terminals

Condition of 

door lock and 
unlock switch

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M2

50

Ground

Lock

0 

→

 Battery voltage 

→

 0

51

Unlock

0 

→

 Battery voltage 

→

 0

PIIB6064E

BL-40

POWER DOOR LOCK SYSTEM

2. 

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM and rear door lock actuator RH connectors. 

2.

Check continuity between BCM connector and rear door lock
actuator RH connectors. 

3.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Replace door lock actuator/rear RH.

NG

>> Repair or replace harness.

Check Fuel Lid Opener Actuator 

NIS001X5

1. 

CHECK FUEL LID OPENER ACTUATOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM and fuel lid lock actuator connector. 

3.

Check continuity between BCM connector and fuel lid lock actu-
ator connector.

4.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Replace fuel lid lock actuator.

NG

>> Repair or replace harness.

A

B

Continuity 

BCM connector

Terminal

Door lock actu-

ator connector

Terminal

M2

50

D79

2

Yes

51

1

A

Continuity 

BCM connector

Terminal

M2

50

Ground

No

51

PIIB6383E

A

B

Continuity 

BCM connector

Terminal

Fuel lid lock 

actuator con-

nector

Terminal

M2

44

B477

1

Yes

M3

69

2

A

Continuity 

BCM connector

Terminal

M2

44

Ground

No

M3

69

PIIB8867E