2009 INFINITI QX56 200

PWC-112
< SYMPTOM DIAGNOSIS >
KEYLESS POWER WINDOW DOWN DOES NOT OPERATE
KEYLESS POWER WINDOW DOWN DOES NOT OPERATE
Diagnosis ProcedureINFOID:0000000003776053
1. CHECK INTELLIGENT KEY FUNCTION
Check Intelligent Key function.
Refer to DLK-56, "CONSULT-III Func tion (INTELLIGENT KEY)"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace BCM. Refer to BCS-56, "Removal and Installation"
.
Revision: December 20092009 QX56

POWER WINDOW LOCK SWITCH DOES NOT FUNCTIONPWC-113
< SYMPTOM DIAGNOSIS >
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POWER WINDOW LOCK SWITCH DOES NOT FUNCTION
Diagnosis ProcedureINFOID:0000000003776054
1. REPLACE MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
Replace main power window and door lock/unlock switch.
Refer to PWC-117, "Removal and Installation"
.
Is the inspection result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI-38, "Intermittent Incident"
.
Revision: December 20092009 QX56

PWC-114
< SYMPTOM DIAGNOSIS >
REAR POWER VENT WINDOWS DO NOT OPERATE
REAR POWER VENT WINDOWS DO NOT OPERATE
Diagnosis ProcedureINFOID:0000000003776055
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 REAR POWER VENT WINDOW SWITCH
Check rear power vent window switch.
Refer to PWC-44, "Diagnosis Procedure - (Early Production)"
or PWC-44, "Diagnosis Procedure - (Late Pro-
duction)".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace the malfunctioning parts.
3. CHECK REAR POWER VENT WINDOW MOTOR CIRCUIT
Check rear power vent window motor circuit.
Refer to PWC-46, "Diagnosis Procedure"
(LH) and PWC-47, "Diagnosis Procedure" (RH).
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace the malfunctioning parts.
4. CHECK REAR POWER VENT WINDOW RELAY
Check rear power vent window relay.
Refer to PWC-48, "Diagnosis Procedure - (Early Production)"
and PWC-49, "Diagnosis Procedure - (Late Pro-
duction)" or PWC-51, "Diagnosis Procedure - (Early Production)" and PWC-52, "Diagnosis Procedure - (Late
Production)".
Is the inspection result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI-38, "Intermittent Incident"
.
Revision: December 20092009 QX56

PRECAUTIONSPWC-115
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005856661
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 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 whether 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 Wh eel Rotation After Battery Disconnect
INFOID:0000000005885965
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 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: December 20092009 QX56

PWC-116
< 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: December 20092009 QX56

POWER WINDOW MAIN SWITCHPWC-117
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
POWER WINDOW MAIN SWITCH
Removal and InstallationINFOID:0000000003776057
REMOVAL
1. Remove the power window main switch finisher (2) from the door finisher LH. Refer to INT-11, "Removal and Installation"
.
2. Using a suitable tool (A), remove the screws from the power win- dow main switch (1), then release from the finisher (2).
INSTALLATION
Installation is in the reverse order of removal.
ALKIA0856ZZ
Revision: December 20092009 QX56

PWC-118
< ON-VEHICLE REPAIR >
FRONT POWER WINDOW SWITCH
FRONT POWER WINDOW SWITCH
Removal and InstallationINFOID:0000000003776058
REMOVAL
1. Remove the front power window switch finisher (2) from the frontdoor finisher RH. Refer to INT-11, "Removal and Installation"
.
: Pawl
2. Using a suitable tool (A), release the tabs and remove the front power window switch (1).
INSTALLATION
Installation is in the reverse order of removal.
ALKIA0857ZZ
Revision: December 20092009 QX56

REAR POWER WINDOW SWITCHPWC-119
< ON-VEHICLE REPAIR >
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REAR POWER WINDOW SWITCH
Removal and InstallationINFOID:0000000003776059
REMOVAL
1. Remove the rear power window switch finisher (1) from the rear door finisher. Refer to INT-11, "Removal and Installation"
.
2. Using a suitable tool (A), release the tabs and remove the rear power window switch (2).
INSTALLATION
Installation is in the reverse order of removal.
ALKIA0860ZZ
Revision: December 20092009 QX56