Infiniti G35 (V35) Sedan. Manual — part 1172
B2013 ID DISCORD, IMMU-STRG
SEC-43
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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B2013 ID DISCORD, IMMU-STRG
Description
INFOID:0000000000961350
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:0000000000961351
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:0000000000961352
1.
PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IV/S/
NVIS”.
Can the system be initialized and can steering lock be released with re-registered Intelligent Key?
YES
>> Steering lock unit was unregistered.
NO
>>
BCM is malfunctioning.
• Replace BCM
• Perform initialization again
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2013
ID DISCORD, IMMU-
STRG
The ID verification results between BCM and steer-
ing control unit are NG. The registration is neces-
sary.
• Steering wheel lock unit
SEC-44
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
B2014 CHAIN OF STRG-IMMU
B2014 CHAIN OF STRG-IMMU
Description
INFOID:0000000000961353
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:0000000000961354
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:0000000000961355
1.
CHECK STEERING LOCK UNIT POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect steering lock unit harness 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 harness connector M122.
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 STRG-
IMMU
Inactive communication between steering
control unit and BCM
• Harness or connectors
(steering lock unit circuit is open or short-
ed)
• Steering lock unit
• BCM
Steering lock unit
Ground
Ignition switch position
Voltage [V]
Connector
Terminal
M40
7
Ground
OFF or ACC
Battery voltage
ON
0
Steering lock unit
BCM
Continuity
Connector
Terminal
connector
Terminal
M40
7
M122
106
Existed
B2014 CHAIN OF STRG-IMMU
SEC-45
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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Is the inspection normal?
YES
>> GO TO 6.
NO
>> Repair 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 harness or connector.
4.
CHECK STEERING LOCK UNIT COMMUNICATION SIGNAL
1.
Connect steering lock unit harness 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 BCM harness connector M122.
3.
Check continuity between steering lock unit harness connector and BCM harness connector.
Steering lock unit
Ground
Continuity
Connector
Terminal
M40
7
Ground
Not existed
Steering lock unit
Ground
Continuity
Connector
Terminal
M40
5
Ground
Existed
6
Steering lock unit
Ground
Steering lock unit condi-
tion
Value
Connector
Terminal
M40
2
Ground
Lock
Battery voltage
Lock or unlock
For 15 seconds after un-
lock
Battery voltage
15 seconds or later after
unlock.
0 V
Steering is locked
: Opening the door when ignition switch is ON to OFF.
Steering is unlocked
: Ignition switch is OFF to ACC.
JMKIA0066GB
Steering lock unit
BCM
Continuity
Connector
Terminal
connector
Terminal
M40
2
M122
111
Existed
SEC-46
< COMPONENT DIAGNOSIS >
[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 harness or connector.
6.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
>> INSPECTION END.
Steering lock unit
Ground
Continuity
Connector
Terminal
M40
2
Ground
Not existed
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