Infiniti G37 Coupe. Manual - part 24

ADP-90

< COMPONENT DIAGNOSIS >

DOOR SWITCH

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK DRIVER SIDE DOOR SWITCH 

Refer to 

ADP-90, "DRIVER SIDE : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace driver side door switch.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace BCM. 

NO

>> Repair or replace the malfunctioning part.

DRIVER SIDE : Component Inspection

INFOID:0000000001693733

1.

CHECK DRIVER SIDE DOOR SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect driver side door switch connector.

3.

Check continuity between driver side door switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace driver side door switch.

Terminal

Condition

Continuity

Driver side door switch

2

Ground part of door 

switch

Driver side door switch

Pressed

Not existed

Released

Existed

DETENTION SWITCH

ADP-91

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

DETENTION SWITCH

Description

INFOID:0000000001693723

Detention switch is installed on A/T device. It is turned OFF when the A/T selector lever is in P position. The
driver seat control unit judges that the A/T selector lever is in P position if continuity does not exist in this cir-
cuit.

Component Function Check

INFOID:0000000001693724

1.

CHECK FUNCTION

1.

Select  “DETENT SW” signal in “Data Monitor” mode with CONSULT-III. 

2.

Check detention switch signal under the following conditions.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-91, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001693725

1.

CHECK DTC WITH “BCM”

Check “Self Diagnostic Result” for BCM with CONSULT-lll.

Is the either DTC B2602, B2603, B2604, B2605 or B2606 detected?

YES

>> Check the DTC. Refer to 

ADP-215, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK DETENTION SWITCH INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between driver seat control unit harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK DETENTION SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and A/T device connector.

3.

Check continuity between driver seat control unit harness connector and A/T device harness connector.

4.

Check continuity between driver seat control unit harness connector and ground.

Monitor item

Condition

Status

DETENT SW

A/T selector lever

P position

OFF

Other than 
above

ON

Driver seat control unit 

connector

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

B503

21

Ground

A/T selector lever

P position

0

Other than above

Battery voltage

Driver seat control unit connec-

tor

Terminal

A/T device connector

Terminal

Continuity

B503

21

M137

11

Existed

Driver seat control unit connec-

tor

Terminal

Ground

Continuity 

B503

21

Not existed

ADP-92

< COMPONENT DIAGNOSIS >

DETENTION SWITCH

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> Repair or replace the malfunctioning part.

PARKING BRAKE SWITCH

ADP-93

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

PARKING BRAKE SWITCH

Description

INFOID:0000000001693726

Parking brake switch is installed on parking brake lever. It is turned ON when the parking brake is applied. The
driver seat control unit judges that the parking brake is engaged if continuity exists in this circuit.

Component Function Check

INFOID:0000000001693727

1.

CHECK PARKING BRAKE SWITCH INPUT SIGNAL

1.

Select “PARK BRAKE SW” in “Data Monitor” mode with CONSULT-III. 

2.

Check parking brake switch signal under the following conditions. 

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-93, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001693728

1.

CHECK PARKING BRAKE SWITCH SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between driver seat control harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK PARKING BRAKE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and parking brake switch connector.

3.

Check continuity between driver seat control unit harness connector and parking brake switch harness
connector.

4.

Check continuity between driver seat control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK PARKING BRAKE SWITCH

Refer to 

ADP-94, "Component Inspection"

.

Is the inspection result normal?

Monitor item

Condition

Status

PARK BRAKE SW

Parking brake

Applied

ON

Release

OFF

Driver seat control unit 

connector

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

B503

8

Ground

Parking brake

Applied

0

Release

Battery voltage

Driver seat control unit connec-

tor

Terminal

Parking brake switch

Terminal

Continuity 

B503

8

B14

1

Existed

Driver seat control unit connec-

tor

Terminal

Ground

Continuity 

B503

8

Not existed