Nissan Murano Z51. Instruction — part 1251
B2013 STEERING LOCK UNIT
SEC-51
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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B2013 STEERING LOCK UNIT
Description
INFOID:0000000005515510
BCM performs the ID verification with the steering lock unit and releases the steering lock if both BCM and
steering lock unit ID are same. BCM starts the communication with the steering lock unit when Intelligent Key
is carried into the passenger compartment and the push-button ignition switch is pressed.
DTC Logic
INFOID:0000000005515511
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Lock steering.
2.
Press the push-button ignition switch.
3.
Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005515512
1.
PERFORM INITIALIZATION
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Instruction NATS-IVIS/NVIS”.
Does steering lock operate?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE STEERING LOCK UNIT
1.
Replace steering lock unit.
2.
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Instruction NATS-IVIS/NVIS”.
Does steering lock operate?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
.
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2013
ID DISCORD, BCM-S/L
The ID verification result between BCM and steering lock
unit is NG. The registration is necessary.
Steering lock unit
SEC-52
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2014 CHAIN OF STRG-IMMU
B2014 CHAIN OF STRG-IMMU
Description
INFOID:0000000005515513
BCM performs the ID verification with the steering lock unit to release the steering. BCM starts the communi-
cation with the steering lock unit when Intelligent Key is carried into the passenger compartment and the push-
button ignition switch is pressed.
DTC Logic
INFOID:0000000005515514
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Lock steering.
2.
Press the push-button ignition switch.
3.
Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005515515
1.
CHECK STEERING LOCK UNIT POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect steering lock unit connector.
3.
Check voltage between steering lock unit harness connector and ground.
Is the inspection normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check continuity between steering lock unit harness connector and BCM harness connector.
4.
Check continuity between steering lock unit harness connector and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2014
CHAIN OF S/L-BCM
Inactive communication between steering
lock unit and BCM
• Harness or connectors
(steering lock unit circuit is open or short-
ed)
• Steering lock unit
• BCM
(+)
(–)
Condition
Voltage (V)
(Approx.)
Steering lock unit
Connector
Terminal
M12
7
Ground
Ignition switch
OFF or ACC
Battery voltage
ON
0
Steering lock unit
BCM
Continuity
Connector
Terminal
Connector
Terminal
M12
7
M122
106
Existed
B2014 CHAIN OF STRG-IMMU
SEC-53
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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Is the inspection normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness or connector.
3.
CHECK STEERING LOCK UNIT GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between steering lock unit and ground.
Is the inspection normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness or connector.
4.
CHECK STEERING LOCK UNIT COMMUNICATION SIGNAL
1.
Connect steering lock unit connector.
2.
Read voltage signal between steering lock unit harness connector and ground.
Is the inspection normal?
YES
>> Replace steering lock unit.
NO
>> GO TO 5.
5.
CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect steering lock unit and BCM connector.
3.
Check continuity between steering lock unit harness connector and BCM harness connector.
Steering lock unit
Ground
Continuity
Connector
Terminal
M12
7
Not existed
Steering lock unit
Ground
Continuity
Connector
Terminal
M12
5
Existed
6
(+)
(–)
Condition
Voltage (V)
(Approx.)
Steering lock unit
Connector
Terminal
M12
2
Ground
Steering lock unit
Lock status
Battery voltage
Lock or unlock
For 15 seconds after
unlock
Battery voltage
15 seconds or later
after unlock.
0
Steering is locked
: Opening the door when ignition switch is ON to OFF.
Steering is unlocked
: Ignition switch is OFF to ACC.
JMKIA0066GB
SEC-54
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2014 CHAIN OF STRG-IMMU
4.
Check continuity between steering lock unit harness connector and ground.
Is the inspection normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness or connector.
6.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
>> INSPECTION END
Steering lock unit
BCM
Continuity
Connector
Terminal
Connector
Terminal
M12
2
M122
111
Existed
Steering lock unit
Ground
Continuity
Connector
Terminal
M12
2
Not existed
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