2011 INFINITI QX56 door

B2108 STEERING LOCK RELAYSEC-127
< DTC/CIRCUIT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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B2108 STEERING LOCK RELAY
DTC LogicINFOID:0000000006226286
DTC DETECTION LOGIC
NOTE:
 If DTC B2108 is displayed with DTC U1000, first per form the trouble diagnosis for DTC U1000. Refer to
PCS-22, "
DTCIndex".
 If DTC B2108 is displayed with other DTC, fi rst perform the trouble diagnosis for the other DTC.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press push-button ignition switch under the fo llowing conditions and wait 1 second or more.
- Selector lever: In the P position
- Brake pedal: Not depressed
2. Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.
Is DTC detected?
YES >> Go to SEC-127, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006226287
1.CHECK STEERING LOCK RELAY
Check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace IPDM E/R. Refer to PCS-32, "
Removal and Installation".
2.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B2108 STRG LCK RELAY ON IPDM E/R detects that steering lock relay is
stuck in the ON position for approximately 1
second even if IPDM E/R receives steering lock
relay OFF signal from BCM.  Harness or connectors
(CAN communication line is open
or shorted.)
IPDM E/R
(+)
(–) Condition Voltage (V)
(Approx.)
IPDM E/R
Connector Terminal
E14 46 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
Revision: 2010 May2011 QX56

B210A STEERING LOCK UNITSEC-129
< DTC/CIRCUIT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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B210A STEERING LOCK UNIT
DTC LogicINFOID:0000000006226290
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE 1
1. Press push-button ignition switch under the fo llowing conditions and wait 1 second or more.
- Selector lever: In the P position
- Brake pedal: Not depressed
2. Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.
Is DTC detected?
YES >> Go to SEC-129, "Diagnosis Procedure".
NO >> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE 2
1. Turn ignition switch ON.
2. Turn ignition switch OFF.
3. Press driver side door switch and wait 1 second or more.
4. CCheck DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.
Is DTC detected?
YES >> Go to SEC-129, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006226291
1.CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> GO TO 2.
2.CHECK IPDM E/R INPUT SIGNAL CIRCUIT
1. Disconnect IPDM E/R connector and steering lock unit connector.
2. Check continuity between IPDM E/R harness connector and steering lock unit harness connector.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B210A STRG LCK STATE SW IPDM E/R detects the difference between
steering condition switches 1 and 2 signals
for 1 second.  Harness or connectors
(Steering lock unit circuit is open or
shorted.)
 Steering lock unit
 IPDM E/R
BCM
(+)
(–) Condition Voltage (V)
(Approx.)
IPDM E/R
Connector Terminal
E17 63
Ground Steering lock unit Lock 12
Unlock 0
65 Lock 0
Unlock 12
Revision: 2010 May2011 QX56

SEC-148
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
ENGINE DOES NOT START WHEN INTELLI
GENT KEY IS INSIDE OF VEHICLE
SYMPTOM DIAGNOSIS
ENGINE DOES NOT START WHEN INTELLIGENT KEY IS INSIDE OF VE-
HICLE
DescriptionINFOID:0000000006226323
Engine does not start when push-button ignition swit ch is pressed while carrying Intelligent Key.
NOTE:
 Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
 The engine start function, door lock function, power di stribution system, and NATS-IVIS/NVIS in the Intelli-
gent Key system are closely related to each other regar ding control. The vehicle security function can oper-
ate only when the door lock and power dist ribution system are operating normally.
Conditions of Vehicle (Operating Conditions)
 “ENGINE START BY I-KEY” in “WORK SUPPOR T” is ON when setting on CONSULT-III.
 Intelligent Key is not inserted in key slot.
 One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
Diagnosis ProcedureINFOID:0000000006226324
1.PERFORM WORK SUPPORT
Perform “INSIDE ANT DIAGNOSIS” on Work Support in “INTELLIGENT KEY”.
Refer to SEC-22, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
>> GO TO 2.
2.PERFORM SELF-DIAGNOSIS RESULT
Perform Self-Diagnosis Result in “BCM”, and check whether or not DTC of inside key antenna is detected.
Is DTC detected?
YES >> Refer to BCS-57, "DTCIndex".
NO >> GO TO 3.
3.CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.
Refer to PCS-71, "
ComponentFunctionCheck".
Is the operation normal?
YES >> GO TO 4.
NO >> Repair or replace malfunctioning parts.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

STEERING DOES NOT LOCKSEC-149
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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STEERING DOES NOT LOCK
DescriptionINFOID:0000000006226325
Steering does not lock when door is open while ignition switch is OFF.
NOTE:
Before performing the diagnosis, check “Work Flow”. Refer to SEC-48, "
Work Flow".
Diagnosis ProcedureINFOID:0000000006226326
1.CHECK DOOR SWITCH
Check door switch.
Refer to DLK-117, "
ComponentFunctionCheck".
Is the inspection normal?
YES >> GO TO 2.
NO >> Repair or replace malfunctioning parts.
2.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

VEHICLE SECURITY SYSTEM CANNOT BE SET
SEC-151
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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VEHICLE SECURITY S YSTEM CANNOT BE SET
INTELLIGENT KEY
INTELLIGENT KEY : DescriptionINFOID:0000000006226329
Armed phase is not activated when door is locked using Intelligent Key.
NOTE:
Check that vehicle is under the condition shown in “C onditions of vehicle” before starting diagnosis, and check
each symptom.
CONDITION OF VEHICLE (OPERATING CONDITION)
Confirm the setting of “SECUTIRY ALARM SET” is ON in “WORK SUPPORT” mode of “THEFT ALM” of
“BCM” using CONSULT-III.
INTELLIGENT KEY : Diagnosis ProcedureINFOID:0000000006226330
1.CHECK INTELLIGENT KEY SYSTEM (REMOTE KEYLESS ENTRY FUNCTION)
Lock/unlock door with Intelligent Key.
Refer to DLK-19, "
DOOR LOCK FUNCTION : System Description".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check Intelligent Key system (remote keyless entry function). Refer to DLK-175, "
Diagnosis Pro-
cedure".
2.CHECK HOOD SWITCH
Check hood swiwtch.
Refer to SEC-141, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace hood switch.
3.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
DOOR REQUEST SWITCH
DOOR REQUEST SWITCH : DescriptionINFOID:0000000006226331
Armed phase is not activated when door is locked using door request switch.
NOTE:
Check that vehicle is under the condition shown in “C onditions of vehicle” before starting diagnosis, and check
each symptom.
CONDITION OF VEHICLE (OPERATING CONDITION)
Confirm the setting of “SECURITY ALARM SET” is ON in “WORK SUPPORT” mode of “THEFT ALM” of
“BCM” using CONSULT-III.
DOOR REQUEST SWITCH : Diagnosis ProcedureINFOID:0000000006226332
1.CHECK INTELLIGENT KEY SYS TEM (DOOR LOCK FUNCTION)
Lock/unlock door with door request switch.
Refer to DLK-19, "
DOOR LOCK FUNCTION : System Description".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check Intelligent Key system (door lock function). Refer to DLK-172, "
ALL DOOR REQUEST
SWITCHES : Diagnosis Procedure".
Revision: 2010 May2011 QX56

SEC-152
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
VEHICLE SECURITY SYSTEM CANNOT BE SET
2.CHECK HOOD SWITCH
Check hood swiwtch.
Refer to SEC-141, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace hood switch.
3.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
DOOR KEY CYLINDER
DOOR KEY CYLINDER : DescriptionINFOID:0000000006375072
Armed phase is not activated when door is locked using mechanical key.
NOTE:
Check that vehicle is under the condition shown in “C onditions of vehicle” before starting diagnosis, and check
each symptom.
CONDITION OF VEHICLE (OPERATING CONDITION)
Confirm the setting of “SECURITY ALARM SET” is ON in “WORK SUPPORT” mode of “THEFT ALM” of
“BCM” using CONSULT-III.
DOOR KEY CYLINDER : Diagnosis ProcedureINFOID:0000000006375073
1.CHECK POWER DOOR LOCK SYSTEM
Lock/unlock door with mechanical key.
Refer to DLK-16, "
System Description".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check power door lock system. Refer to DLK-171, "
Diagnosis Procedure".
2.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

VEHICLE SECURITY ALARM DOES NOT ACTIVATE
SEC-153
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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VEHICLE SECURITY ALAR M DOES NOT ACTIVATE
DescriptionINFOID:0000000006226333
Alarm does not operate when alarm operating condition is satisfied.
NOTE:
Check that vehicle is under the condition shown in “C onditions of vehicle” before starting diagnosis, and check
each symptom.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
Confirm the setting of “SECURITY ALARM SET” is ON in “WORK SUPPORT” mode of “THEFT ALM” of
“BCM” using CONSULT-III.
Diagnosis ProcedureINFOID:0000000006226334
1.CHECK DOOR SWITCH
Check door switch.
Refer to DLK-117, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the malfunctioning door switch
2.CHECK HOOD SWITCH
Check hood swiwtch.
Refer to SEC-141, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace hood switch.
3.CHECK HORN FUNCTION
Check horn function.
Refer to SEC-143, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK HEADLAMP FUNCTION
Check headlamp function.
Refer to SEC-140, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

SEC-154
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
PANIC ALARM FUNCTION DOES NOT OPERATE
PANIC ALARM FUNCTION
DOES NOT OPERATE
DescriptionINFOID:0000000006226336
NOTE:
 Before performing the diagnosis following procedure, check “Work Flow”. Refer to SEC-48, "
Work Flow".
 Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
CONDITIONS OF VEHICLE (OPERATION CONDITIONS)
 Ignition switch is in OFF or LOCK position.
 Intelligent Key is removed from key slot.
Diagnosis ProcedureINFOID:0000000006226337
1.CHECK REMOTE KEYL ESS ENTRY FUNCTION
Check remote keyless entry function.
Does door lock/unlock with Intelligent key button?
YES >> GO TO 2.
NO >> Go to DLK-175, "
Diagnosis Procedure".
2.CHECK VEHICLE SECURITY ALARM OPERATION
Check vehicle security alarm operation.
Does alarm (headlamps and horns) active?
YES >> GO TO 3.
NO >> Go to SEC-18, "
VEHICLE SECURITY SYSTEM : System Description".
3.CHECK “PANIC ALARM SET” SETTING IN “WORK SUPPORT”
Check “PANIC ALARM SET” setting in “WORK SUPPORT”.
Refer to SEC-22, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Set “PANIC ALARM SET” setting in “WORK SUPPORT”.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56