Nissan March K13. Manual - part 589

B26F0 STEERING LOCK RELAY

SEC-95

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B26F0 STEERING LOCK RELAY

DTC Logic

INFOID:0000000006038570

DTC DETECTION LOGIC

NOTE:
• If DTC B26F0 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-47, "DTC Logic"

.

• If DTC B26F0 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.

Shift selector lever to the P position.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF.

4.

Press driver side door switch and wait 2 seconds or more.

5.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-95, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006038571

1.

CHECK DTC WITH IPDM E/R

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.
Is DTC detected?

YES

>> Perform the diagnosis procedure related to the detected DTC. Refer to 

PCS-22, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK STEERING LOCK RELAY CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect steering lock relay.

3.

Disconnect IPDM E/R connector.

4.

Check continuity between steering lock relay harness connector and IPDM E/R harness connector.

5.

Check continuity between steering lock relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B26F0

STRG LCK RELAY ON

BCM requests IPDM E/R to turn steering lock 
relay OFF, but BCM cannot receive steering 
lock relay OFF state signal from IPDM E/R 
(CAN) within 2 seconds.

• Harness or connectors

(The CAN communication line is 
open or shorted.)

• Harness or connector

(Steering lock relay circuit is open 
or shorted.)

• Steering lock relay
• IPDM  E/R

Steering lock relay

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E56

1

E17

82

Existed

Steering lock relay

Ground

Continuity

Connector

Terminal

E56

1

Not existed

SEC-96

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B26F0 STEERING LOCK RELAY

NO

>> Repair or replace harness.

3.

CHECK STEERING LOCK RELAY CIRCUIT 2

1.

Check continuity between steering lock relay harness connector and IPDM E/R harness connector.

2.

Check continuity between steering lock relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK STEERING LOCK RELAY

Refer to 

SEC-96, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation"

.

NO

>> Replace steering lock relay.

Component Inspection

INFOID:0000000006046168

1.

CHECK STEERING LOCK RELAY

1.

Turn ignition switch OFF.

2.

Disconnect steering lock relay.

3.

Check continuity between steering lock relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering lock relay.

Steering lock relay

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E56

3

E17

87

Existed

Steering lock relay

Ground

Continuity

Connector

Terminal

E56

3

Not existed

Steering lock relay

Condition

Continuity

Terminal

3

5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed

B26F3 STARTER CONTROL RELAY

SEC-97

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B26F3 STARTER CONTROL RELAY

DTC Logic

INFOID:0000000006038572

DTC DETECTION LOGIC

NOTE:
• If DTC B26F3 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-47, "DTC Logic"

.

• If DTC B26F3 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.

Press push-button ignition switch under the following conditions to start engine.

-

Selector lever: In the P position

-

Brake pedal: Depressed

2.

Wait 2 seconds after engine started.

3.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-97, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006038573

1.

CHECK DTC WITH IPDM E/R

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

Is DTC detected?

YES

>> Perform the diagnosis procedure related to the detected DTC. Refer to 

SEC-97, "DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B26F3

START CONT RLY ON

BCM requests IPDM E/R to turn starter 
control relay OFF, but BCM cannot receive 
starter control relay OFF state signal from 
IPDM E/R (CAN).

• Harness or connectors

(The CAN communication line is open 
or shorted.)

• IPDM  E/R

SEC-98

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B26F4 STARTER CONTROL RELAY

B26F4 STARTER CONTROL RELAY

DTC Logic

INFOID:0000000006038574

DTC DETECTION LOGIC

NOTE:
• If DTC B26F4 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-47, "DTC Logic"

.

• If DTC B26F4 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.

Press push-button ignition switch under the following conditions to start engine, and wait 1 second or
more.

-

Selector lever: In the P position

-

Brake pedal: Depressed

2.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-98, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006038575

1.

CHECK DTC WITH IPDM E/R

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

Is DTC detected?

YES

>> Perform the diagnosis procedure related to the detected DTC. Refer to 

SEC-97, "DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B26F4

START CONT RELAY OFF

BCM requests IPDM E/R to turn starter 
control relay ON, but BCM cannot receive 
starter control relay ON state signal from 
IPDM E/R (CAN).

• Harness or connectors

(The CAN communication line is open 
or shorted.)

• IPDM  E/R