Infiniti EX35. Manual — part 1288
SEC-48
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
B2013 ID DISCORD, IMMU-STRG
B2013 ID DISCORD, IMMU-STRG
Description
INFOID:0000000003586525
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:0000000003586526
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:0000000003586527
1.
PERFORM INITIALIZATION
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual 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 Manual NATS-IVIS/NVIS”.
Does steering lock operate?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2013
ID DISCORD, IMMU-STRG
The ID verification results between BCM and steering
lock unit are NG. The registration is necessary.
Steering lock unit
B2014 CHAIN OF STRG-IMMU
SEC-49
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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B2014 CHAIN OF STRG-IMMU
Description
INFOID:0000000003586528
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:0000000003586529
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:0000000003586530
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 result 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 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
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
M40
7
Ground
Ignition switch
OFF or ACC
Battery voltage
ON
0
Steering lock unit
BCM
Continuity
Connector
Terminal
Connector
Terminal
M40
7
M122
106
Existed
SEC-50
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
B2014 CHAIN OF STRG-IMMU
Is the inspection result 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 result 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 result 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 M122.
3.
Check continuity between steering lock unit harness connector and BCM harness connector.
Steering lock unit
Ground
Continuity
Connector
Terminal
M40
7
Not existed
Steering lock unit
Ground
Continuity
Connector
Terminal
M40
5
Existed
6
(+)
(–)
Condition
Voltage (V)
(Approx.)
Steering lock unit
Connector
Terminal
M40
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
B2014 CHAIN OF STRG-IMMU
SEC-51
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
C
D
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F
G
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4.
Check continuity between steering lock unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness or connector.
6.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
.
>> INSPECTION END
Steering lock unit
BCM
Continuity
Connector
Terminal
Connector
Terminal
M40
2
M122
111
Existed
Steering lock unit
Ground
Continuity
Connector
Terminal
M40
2
Not existed
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