Nissan Sentra. Manual - part 686

PCS

B26F6 BCM

PCS-97

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

PCS-98

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

PUSH-BUTTON IGNITION SWITCH

Component Function Check

INFOID:0000000009755887

1.

CHECK FUNCTION

1. Select “PUSH SW” in “Data Monitor” of BCM with CONSULT. 

2. Check the push-button ignition switch signal under the following conditions.

Is the indication normal?

YES

>> Inspection End.

NO

>> Go to  

PCS-98, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009755888

Regarding Wiring Diagram information, refer to 

PCS-70, "Wiring Diagram"

.

1.

 CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)

1. Turn ignition switch OFF.

2. Disconnect push-button ignition switch connector and IPDM E/R connector E39.

3. Check voltage between push-button ignition switch connector M25 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

 CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1. Disconnect BCM connector M83.

2. Check continuity between BCM connector M83 and push-button ignition switch connector M25.

3. Check continuity between BCM connector M83 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

3.

 CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

Check voltage between IPDM E/R connector E39 and ground.

Test item

Condition

Status

PUSH SW

Push-button ignition switch is pressed

On

Push-button ignition switch is not pressed

Off

Push-button ignition switch

Ground

Voltage

(Approx.)

Connector

Terminal

M25

8

—

Battery voltage

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M83

55

M25

8

Yes

BCM

Ground

Continuity

Connector

Terminal

M83

55

—

No

PCS

PUSH-BUTTON IGNITION SWITCH

PCS-99

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

 CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

1. Disconnect BCM connector M83.

2. Check continuity between IPDM E/R connector E39 and push-button ignition switch connector M25.

3. Check continuity between IPDM E/R connector E39 and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

5.

CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT 

Check continuity between push-button ignition switch connector M25 and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness or connectors.

6.

CHECK PUSH-BUTTON IGNITION SWITCH

Refer to 

PCS-99, "Component Inspection"

.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace push-button ignition switch. Refer to 

PCS-102, "Removal and Installation"

.

Component Inspection

INFOID:0000000009755889

1.

CHECK PUSH-BUTTON IGNITION SWITCH

1. Turn ignition switch OFF.

2. Disconnect push-button ignition switch connector.

3. Check continuity between push-button ignition switch terminals.

Is the inspection result normal?

YES

>> Inspection End.

IPDM E/R

Ground

Voltage

(Approx.)

Connector

Terminal

E39

66

—

Battery voltage

IPDM E/R

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

E39

66

M25

8

Yes

IPDM E/R

Ground

Continuity

Connector

Terminal

E39

66

—

No

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M25

4

—

Yes

Push-button ignition switch terminals

Condition

Continuity

4 – 8

Pressed

Yes

Not pressed

No

PCS-100

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

NO

>> Replace push-button ignition switch.