2011 INFINITI QX56 door lock

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

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

PRECAUTIONSSR-3
< PRECAUTION >
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5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Battery ServiceINFOID:0000000006113045
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prev ent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Occupant Classification SystemINFOID:0000000006113047
 Replace occupant classification system control uni t and passenger front seat cushion as an assembly.
Refer to SE-105, "
Exploded View".
ServiceINFOID:0000000006113046
 Never use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
 Before servicing the SRS, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes.
For approximately 3 minutes after the battery negative termi nal is removed, it is still possible for the air bag
and seat belt pre-tensioner to deploy. Therefore, never work on any SRS connectors or wires until at least 3
minutes have elapsed.
 Diagnosis sensor unit must always be installed with their arrow marks “ ⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities, or rust before installa-
tion and replace as required.
 The spiral cable must be aligned in the neutral position since its rotations are limited. Never turn steering
wheel and column after removal of steering gear.
 Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side facing upward and seat mounted front side air bag m odule standing with the stud bolt side facing downward.
 Perform self-diagnosis to check entire SRS fo r proper function after replacing any components.
 After air bag deploys, the front instrument panel assembly should be replaced if damaged.
 Always replace instrument panel pad following front passenger air bag deployment.
Revision: 2010 May2011 QX56

WCS-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System DiagramINFOID:0000000006222683
WARNING CHIME SYSTEM : System DescriptionINFOID:0000000006222684
COMBINATION METER
The combination meter sounds the alarm buzzer install ed in the combination meter when receiving the buzzer
output signal transmitted from each unit.
BCM
BCM receives signals from various units and transmits a buzzer output signal to the combination meter via
CAN communication if it judges that the warning buzzer should be activated.
WARNING CHIME FUNCTION LIST
JSNIA3116GB
Warning functions Out line Warning judgment unit Refer to
Light reminder warning chime The warning chime sounds when the ignition
s w i t c h i s i n O F F o r A C C p o s i t i o n w i t h t h e c o m -
bination switch (lighting switch) in the 1st or
2nd position and the driver side door open. BCMWCS-8,
"LIGHT RE-
MINDER
WARNING
CHIME : Sys-
tem Descrip-
tion"
Front fog light reminder warning chime
The warning chime sounds when the ignition
switch is turned to LOCK, OFF or ACC posi-
tion from ON position, with combination switch
(lighting switch) is in AUTO position and the
front fog lamp switch in ON position. BCMWCS-10,
"FRONT FOG
LIGHT RE-
MINDER
WARNING
CHIME : Sys-
tem Descrip-
tion"
Revision: 2010 May2011 QX56

WCS
DIAGNOSIS SYSTEM (BCM)WCS-19
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu nction (BCM - COMMON ITEM)INFOID:0000000006419721
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defo gger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
IVIS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56

WCS
DIAGNOSIS SYSTEM (BCM)WCS-21
< SYSTEM DESCRIPTION >
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ACTIVE TEST
Display item [Unit] Description
PUSH SW
[On/Off] Status of push-button ignition switch judged by BCM.
UNLK SEN-DR
[On/Off] Status of unlock sensor judged by BCM.
VEH SPEED 1
[km/h] Value of vehicle speed signal received from combination meter with CAN communication line.
TAIL LAMP SW
[On/Off] Status of lighting switch judged by BCM using the combination switch readout function.
FR FOG SW
[On/Off] Status of front fog lamp switch judged by BCM using the combination switch readout function.
DOOR SW-DR
[On/Off] Status of driver side door switch judged by BCM.
CDL LOCK SW
[On/Off] Status of door lock unlock switch judged by BCM.
Display item
[Unit] Description
SEAT BELT WARN TEST The seat belt warning chime operation can be checked by operating the relevant function (On/Off).
LIGHT WARN ALM The light warning chime operation can be checked by operating the relevant function (On/Off).
Revision: 2010 May2011 QX56

WW-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000006349813
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate ea ch device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
IVIS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56