Infiniti FX35, FX50 (S51). Manual — part 487

DOOR SWITCH

DLK-71

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-83, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK BACK DOOR SWITCH GROUND CIRCUIT

Check continuity between back door lock assembly (back door switch) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DOOR SWITCH

Refer to

DLK-71, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>>

Replace malfunctioning door switch.

• Door switch: Refer to

DLK-280, "Removal and Installation"

.

• Back door lock assembly (back door switch): Refer to

DLK-277, "Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-36, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005239541

1.

CHECK DOOR SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect door switch connector.

3.

Check door switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>>

Replace malfunction door switch.

• Door switch: Refer to

DLK-280, "Removal and Installation"

.

• Back door lock assembly (back door switch): Refer to

DLK-277, "Removal and Installation"

.

BCM

Ground

Continuity

Connector

Terminal

M123

150 (Driver side)

Not existed

124 (Passenger side)

M121

69 (Rear LH)

68 (Rear RH)

66 (Back door)

Back door lock assembly (back door switch)

Ground

Continuity

Connector

Terminal

D122

8

Existed

Terminal

Door switch condition

Continuity

Door switch

Each door

2

Ground part of door

switch

Pressed

Not existed

Released

Existed

Back door

7

8

Pressed

Not existed

Released

Existed

DLK-72

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK AND UNLOCK SWITCH

DOOR LOCK AND UNLOCK SWITCH

DRIVER SIDE

DRIVER SIDE : Description

INFOID:0000000005239542

Transmits door lock/unlock operation to BCM.

DRIVER SIDE : Component Function Check

INFOID:0000000005239543

1.

CHECK FUNCTION

With CONSULT-III

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in Data Monitor mode using CONSULT-III.

Is the inspection result normal?

YES

>> Door lock and unlock switch is OK.

NO

>> Refer to

DLK-72, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000005239544

1.

CHECK POWER WINDOW SWITCH

1.

Turn ignition switch ON.

2.

Check power window operation.

Does power window (driver side) operate?

YES

>> Replace power window main switch.

NO

>> Refer to

PWC-121, "Diagnosis Procedure"

.

PASSENGER SIDE

PASSENGER SIDE : Description

INFOID:0000000005239545

Transmits door lock/unlock operation to BCM.

PASSENGER SIDE : Component Function Check

INFOID:0000000005239546

1.

CHECK FUNCTION

With CONSULT-III

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in Data Monitor mode using CONSULT-III.

Is the inspection result normal?

YES

>> Door lock and unlock switch is OK.

NO

>> Refer to

DLK-72, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000005239547

1.

CHECK POWER WINDOW SWITCH

Monitor item

Condition

CDL LOCK SW

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW

LOCK

: OFF

UNLOCK

: ON

Monitor item

Condition

CDL LOCK SW

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW

LOCK

: OFF

UNLOCK

: ON

DOOR LOCK AND UNLOCK SWITCH

DLK-73

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

1.

Turn ignition switch ON.

2.

Check passenger side power window operation.

Does power window (passenger side) operate?

YES

>> Replace power window switch (passenger side)

NO

>> Refer to

PWC-121, "Diagnosis Procedure"

.

DLK-74

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK ACTUATOR

DOOR LOCK ACTUATOR

DRIVER SIDE

DRIVER SIDE : Description

INFOID:0000000005239548

Locks/unlocks the door with the signal from BCM.

DRIVER SIDE : Component Function Check

INFOID:0000000005239549

1.

CHECK FUNCTION

1.

Use CONSULT-III to perform Active Test (“DOOR LOCK”).

2.

Touch “ALL LCK” or “ALL UNLK” to check that it works normally.

Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to

DLK-74, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000005239550

1.

CHECK OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check voltage between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> Replace front door lock assembly (driver side). Refer to

DLK-248, "DOOR ASSEMBLY : Removal

and Installation"

.

NO

>> GO TO 2.

2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and front door lock assembly (driver side) harness
connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-83, "Removal and Installation"

.

NO

>> Repair or replace harness.

PASSENGER SIDE

(+)

(–)

Condition of door lock

and unlock switch

Voltage (V)

(Approx.)

Front door lock assembly

Connector

Terminal

D15

1

Ground

Lock

0

→

Battery voltage

→

0

2

Unlock

0

→

Battery voltage

→

0

BCM

Front door lock assembly (driver side)

Continuity

Connector

Terminal

Connector

Terminal

M119

8

D15

1

Existed

9

2

BCM

Ground

Continuity

Connector

Terminal

M119

8

Not existed

9