Nissan March K13. Manual - part 588

B26E9 STEERING STATUS

SEC-91

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

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B26E9 STEERING STATUS

DTC Logic

INFOID:0000000006038566

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF.

3.

Press driver side door switch.

4.

Turn ignition switch ON.

5.

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

Is DTC detected?

YES

>> Refer to 

SEC-91, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006038567

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC CONFIRMATION PROCEDURE for DTC B26E9. Refer to 

SEC-91, "DTC Logic"

.

Is DTC detected?

YES

>> Replace steering lock unit.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B26E9

LOCK MALFUNCTION

BCM activates steering lock but steering state that 
BCM recognizes is unlock.

Steering lock unit 

SEC-92

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B26EF STEERING LOCK RELAY

B26EF STEERING LOCK RELAY

DTC Logic

INFOID:0000000006038568

DTC DETECTION LOGIC

NOTE:
• If DTC B26EF is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-47, "DTC Logic"

.

• If DTC B26EF 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-92, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006038569

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 UNIT POWER SUPPLY

Check voltage between steering lock unit harness connector and ground.

NOTE:

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B26EF

STRG LCK RELAY OFF

BCM requests IPDM E/R to turn steering lock 
relay ON, but BCM cannot receive steering 
lock relay ON 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

(+)

(–)

Condition

Voltage (V)

(Approx.)

Steering lock unit

Connector

Terminal

M12

1

Ground

Ignition switch 
OFF

A few seconds after 
opening the driver door

Battery voltage

Ignition switch 
LOCK

Press the push-button 
ignition switch

Battery voltage

Ignition switch ACC or ON

0

B26EF STEERING LOCK RELAY

SEC-93

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

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Is the inspection normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

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

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK STEERING LOCK UNIT CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect steering lock relay.

3.

Disconnect steering lock unit connector.

4.

Check continuity between steering lock relay harness connector and steering lock unit harness connector.

5.

Check continuity between steering lock relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK STEERING LOCK RELAY POWER SUPPLY SIRCUIT

Check voltage between steering lock relay harness connector and ground.

To lock the steering

1.

Set the selector lever in the P position.

2.

Turn the power supply position to the OFF position.

3.

Press any door switch.

To unlock the steering

1.

Set the selector lever in the P position.

2.

Press the push-button ignition switch with brake pedal not depressed.

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

Steering lock unit

Continuity

Connector

Terminal

Connector

Terminal

E56

3

M12

1

Existed

Steering lock relay

Ground

Continuity

Connector

Terminal

E56

3

Not existed

SEC-94

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B26EF STEERING LOCK RELAY

Is the inspection result normal?

YES

>> GO TO 6.

NO-1

>> Check 10 A fuse [No. 34, located in the fuse block (J/B)].

NO-2

>> Check harness for open or short between steering lock relay and fuse.

6.

CHECK STEERING LOCK RELAY CIRCUIT 2

1.

Disconnect IPDM E/R connector.

2.

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

3.

Check continuity between steering lock relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK STEERING LOCK RELAY

Refer to 

SEC-94, "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:0000000006044485

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.

(+)

(–)

Voltage (V)

(Approx.)

Steering lock relay

Connector

Terminal

E56

2

Ground

Battery voltage

5

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

Steering lock relay

Condition

Continuity

Terminal

3

5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed