Infiniti EX35. Manual - part 462

DLK-62

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

BCM (BODY CONTROL MODULE)

BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000003728860

1.

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not fusing.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

Terminal No.

Signal name

Fuse and fusible link No.

1

Battery power supply

K

11

10

(+)

(

−

)

Voltage

(Approx.)

BCM

Connector

Terminal

M118

1

Ground

Battery voltage

M119

11

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed

DOOR SWITCH

DLK-63

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

DOOR SWITCH

Description

INFOID:0000000003728862

Detects door open/close condition.

Component Function Check

INFOID:0000000003728863

1.

CHECK FUNCTION

With CONSULT-III

Check door switches (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL”, “DOOR SW-RR” and “DOOR SW-
BK”) in Data Monitor” mode with CONSULT-III.

Is the inspection result normal?

YES

>> Door switch is OK.

NO

>> Refer to 

DLK-63, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003728864

1.

CHECK DOOR SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect malfunctioning door switch connector.

3.

Check signal between malfunctioning door switch harness connector and ground with oscilloscope.

Monitor item

Condition

DOOR SW-DR

CLOSE 

→

 OPEN: OFF 

→

 ON

DOOR SW-AS

DOOR SW-RL

DOOR SW-RR

DOOR SW-BK

DLK-64

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

DOOR SWITCH

Is the inspection result normal?

YES-1 >> Back door: GO TO 3.
YES-2 >> Other doors: GO TO 4.
NO

>> GO TO 2.

2.

CHECK DOOR SWITCH CIRCUIT 

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and door switch harness connector.

(+)

(–)

Signal

(Reference value)

Door switch

Connector

Terminal

Driver side

B16

2

Ground

Passenger side

B216

2

Rear LH

B23

2

Rear RH

B223

2

Back door

D113

3

JPMIA0011GB

JPMIA0011GB

JPMIA0011GB

JPMIA0011GB

JPMIA0011GB

DOOR SWITCH

DLK-65

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-84, "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-65, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>>

Replace malfunctioning door switch.

• Door switch: Refer to 

DLK-257, "Removal and Installation"

.

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

DLK-255, "Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END 

Component Inspection

INFOID:0000000003728865

1.

CHECK DOOR SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect door switch connector.

3.

Check door switch terminals.

BCM

Door switch

Continuity 

Connector

Terminal

Connector

Terminal

M123

150

B16 (Driver side)

2

Existed

124

B216 (Passenger side)

M121

69

B23 (Rear LH)

68

B223 (Rear RH)

66

D113 (Back door)

3

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

D113

4

Existed