Nissan March K13. Manual - part 501

PCS-86

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B26F6 BCM

B26F6 BCM

DTC Logic

INFOID:0000000005998936

DTC DETECTION LOGIC

NOTE:
• If DTC B26F6 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-47, "DTC Logic"

.

• If DTC B26F6 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-48, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for 1 second or more.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-86, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005998937

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self-diagnosis result” mode with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

PCS-86, "DTC Logic"

.

Is DTC detected?

YES

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation"

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B26F6

BCM

Ignition relay ON signal is not transmitted from IPDM E/
R when BCM turns ignition relay ON.

BCM

PCS

PUSH-BUTTON IGNITION SWITCH

PCS-87

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

PUSH-BUTTON IGNITION SWITCH

Component Function Check

INFOID:0000000005998939

1.

CHECK FUNCTION

1.

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

2.

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

Is the indication normal?

YES

>> INSPECTION END.

NO

>> Go to  

PCS-87, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005998940

1.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

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

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 1

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and push-button ignition switch harness connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 2

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

Test item

Condition

Status

PUSH SW

Push-button ignition switch is pressed

ON

Push-button ignition switch is not pressed

OFF

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M101

8

Ground

Battery voltage

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M71

100

M101

8

Existed

BCM

Ground

Continuity

Connector

Terminal

M71

100

Not existed

PCS-88

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 2

1.

Disconnect BCM connector.

2.

Check continuity between IPDM E/R harness connector and push-button ignition switch harness connec-
tor.

3.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation"

.

NO

>> Repair or replace harness.

5.

CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT 

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK PUSH-BUTTON IGNITION SWITCH

Refer to 

PCS-88, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace push-button ignition switch.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005998941

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.

(+)

(–)

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E17

81

Ground

Battery voltage

IPDM E/R

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

E17

81

M101

8

Existed

IPDM E/R

Ground

Continuity

Connector

Terminal

E17

81

Not existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M101

4

Existed

PCS

PUSH-BUTTON IGNITION SWITCH

PCS-89

< 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

>> INSPECTION END

NO

>> Replace push-button ignition switch.

Push-button ignition switch

Condition

Continuity

Terminal

4

8

Pressed

Existed

Not pressed

Not existed