2008 INFINITI QX56 lock

NONE OF THE POWER WINDOWS CAN BE OPERATED USING ANY SWITCH
PWC-95
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SYMPTOM DIAGNOSIS
NONE OF THE POWER WINDOWS CAN BE OPERATED USING ANY
SWITCH
Diagnosis ProcedureINFOID:0000000001735743
1. CHECK BCM POWER SUPPLY AND GROUND CIRCUIT
Check BCM power supply and ground circuit.
Refer to BCS-32, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning parts.
2. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY AND
GROUND CIRCUIT
Check power window switch main power supply and ground circuit.
Refer to PWC-12, "
POWER WINDOW MAIN SWITCH : Component Function Check".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace the malfunctioning parts.
3. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH SERIAL CIRCUIT
Check main power window and door lock/unlock switch serial circuit.
Refer to PWC-12, "
POWER WINDOW MAIN SWITCH : Component Function Check".
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace the malfunctioning parts.
4. CHECK MAIN POWER WINDOW A ND DOOR LOCK/UNLOCK SWITCH
Check main power window and door lock/unlock switch.
Refer to PWC-12, "
POWER WINDOW MAIN SWITCH : Component Function Check".
Is the inspection result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
Revision: March 2010 2008 QX56

FRONT PASSENGER SIDE POWER WINDOW ALONE DOES NOT OPERATE
PWC-97
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FRONT PASSENGER SIDE POWER WINDOW ALONE DOES NOT OPER-
AT E
Diagnosis ProcedureINFOID:0000000001735745
1. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH
Check power window and door lock/unlock switch RH.
Refer to PWC-13, "
FRONT POWER WINDOW SWITCH : Component Function Check".
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning parts.
2. CHECK POWER WINDOW AND DOOR LOCK/ UNLOCK SWITCH RH SERIAL LINK CIRCUIT
Check power window and door lock/unlock switch RH serial link circuit.
Refer to PWC-40, "
FRONT POWER WINDOW SWITCH : Component Function Check".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace the malfunctioning parts.
3. CHECK FRONT POWER WINDOW MOTOR RH CIRCUIT
Check front power window motor RH circuit.
Refer to PWC-18, "
PASSENGER SIDE : Component Function Check".
Is the inspection result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
Revision: March 2010 2008 QX56

DOES NOT OPERATE BY KEY CYLINDER SWITCHPWC-109
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DOES NOT OPERATE BY KEY CYLINDER SWITCH
Diagnosis ProcedureINFOID:0000000001735753
1. CHECK FRONT DOOR LOCK ASSE MBLY LH (KEY CYLINDER SWITCH)
Check front door lock assembly LH (key cylinder switch).
Refer to PWC-36, "
Component Function Check".
Is the inspection result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
Revision: March 2010 2008 QX56

POWER WINDOW LOCK SWITCH DOES NOT FUNCTIONPWC-111
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POWER WINDOW LOCK SWITCH DOES NOT FUNCTION
Diagnosis ProcedureINFOID:0000000001735755
1. REPLACE MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
Replace main power window and door lock/unlock switch.
Refer to PWC-115, "
Removal and Installation".
Is the inspection result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
Revision: March 2010 2008 QX56

PRECAUTIONSPWC-113
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004857563
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004857565
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

PWC-114
< PRECAUTION >
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Revision: March 2010 2008 QX56

PWO-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004857547
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004857548
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

PWO
PRECAUTIONSPWO-3
< PRECAUTION >
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Revision: March 2010 2008 QX56