2010 INFINITI QX56 window

DEF-38
< SYMPTOM DIAGNOSIS >
REAR WINDOW DEFOGGER DOES NOT OPERATE BUT BOTH OF DOOR MIR-ROR DEFOGGER OPERATE.
REAR WINDOW DEFOGGER DOES NO T OPERATE BUT BOTH OF DOOR
MIRROR DEFOGGER OPERATE.
Diagnosis ProcedureINFOID:0000000005146850
1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Check rear window defogger power supply and ground circuit.
Refer to DEF-10, "
Component Function Check".
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Revision: April 20092010 QX56

BOTH DOORS MIRROR DEFOGGER DON’T OPERATE BUT REAR WINDOW DEFOGGER OPERATES
DEF-39
< SYMPTOM DIAGNOSIS >
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BOTH DOORS MIRROR DEFOGGER DON’T OPERATE BUT REAR WIN-
DOW DEFOGGER OPERATES
Diagnosis ProcedureINFOID:0000000005146851
1. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• IPDM E/R.
NO >> Repair or replace the malfunctioning parts.
Revision: April 20092010 QX56

DEF-42
< SYMPTOM DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH DOES NOT LIGHT, BUT REAR WINDOW
DEFOGGER OPERATES
REAR WINDOW DEFOGGER SWITCH DOES NOT LIGHT, BUT REAR WIN-
DOW DEFOGGER OPERATES
Diagnosis ProcedureINFOID:0000000005146854
1.CHECK A/C AND AV SWITCH ASSEMB LY (REAR WINDOW DEFOGGER SWITCH)
Check that the A/C and AV switch assembly (rear window defogger switch) is operating normally.
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Refer to DEF-8, "
Diagnosis Procedure".
Revision: April 20092010 QX56

REAR WINDOW DEFOGGERDEF-45
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
REAR WINDOW DEFOGGER
Filament CheckINFOID:0000000005146857
1. When measuring voltage, wrap tin foil around the top of the neg- ative probe.Then press the foil against the wire with your finger.
2. Attach probe circuit tester (in Volt range) to middle portion of each filament.
3. If a filament is burned out, circuit tester registers 0 or battery voltage.
4. To locate burned out point, move probe to left and right along fil- ament. Test needle will swing abruptly when probe passes the
point.
Filament RepairINFOID:0000000005146858
REPAIR EQUIPMENT
• Conductive silver composition (DuPont No. 4817 or equivalent)
• Ruler 30 cm (11.8 in) long
SEL122R
SEL263
SEL265
Revision: April 20092010 QX56

DEF-46
< ON-VEHICLE REPAIR >
REAR WINDOW DEFOGGER
• Drawing pen
• Heat gun
• Alcohol
• Cloth
REPAIRING PROCEDURE
1. Wipe broken heat wire and its surrounding area clean with acloth dampened in alcohol.
2. Apply a small amount of conductive silver composition to tip of drawing pen.
Shake silver composition container before use.
3. Place ruler on glass along broken line. Deposit conductive silver composition on break with drawing pen. Slightly overlap existing
heat wire on both sides [preferably 5 mm (0.20 in)] of the break.
4. After repair has been completed, check repaired wire for conti- nuity. This check should be conducted 10 minutes after silver
composition is deposited.
Do not touch repaired area while test is being conducted.
5. Apply a constant stream of hot air directly to the repaired area for approximately 20 minutes with a heat gun. A minimum dis-
tance of 3 cm (1.2 in) should be kept between repaired area and
hot air outlet.
If a heat gun is not available, let the repaired area dry for 24
hours.
PIIA0215E
SEL012D
SEL013D
Revision: April 20092010 QX56

DLK-10
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
AUTOMATIC DOOR LOCKS
FUNCTION DIAGNOSIS
AUTOMATIC DOOR LOCKS
System DiagramINFOID:0000000005146867
System DescriptionINFOID:0000000005146868
DOOR LOCK FUNCTION
• The door lock and unlock switch (driver side) is built into power window main switch.
• The door lock and unlock switch (passenger side) is on door trim.
• Interlocked with the locking operation of door lock and
unlock switch, door lock actuators of all doors are
locked.
• Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors are
unlocked.
Door Key Cylinder
• With the door key inserted in the door key cylinder on driver side, turning it to “LOCK”, will lock door lock
actuator of all doors.
• With the door key inserted in the door key cylinder on driver side, turning it to “UNLOCK” onc\
e unlocks the driver side door lock actuator; turning it to “UNLOCK” again within 5 seconds after the first unlock operation
unlocks all of the other doors. - (SELECTIVE UNLOCK OPERATION)
Selective unlock operation mode can be changed usi ng “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT”. Refer to DLK-53, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
AUTOMATIC DOOR LOCKS (LOCK OPERATION)
The interlock door lock function is the function that locks all doors linked with the vehicle speed.
Vehicle Speed Sensing Auto Door Lock*1
All doors are locked when the vehicle speed reaches 24 km/h (15 MPH) or more.
BCM outputs the lock signal to all door lock actuators when it detects that the ignition switch is turned ON, all
doors are closed and the vehicle speed received from the combination meter via CAN communication
becomes 15 MPH (24 km/h) or more.
ALKIA1482GB
Input SingleFunction Actuator
Door lock/unlock switch Door lock/unlock signal Door lock function
Each door lock actuator
Door key cylinder switch
Each door switch
Door open/close signal
Key reminder function
Combination meter Warning buzzer signal
Vehicle speed signal
Automatic door lock/unlock
function
TCM Shift position signal
Revision: April 20092010 QX56

DLK-12
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
AUTOMATIC DOOR LOCKS
Component Parts Location
INFOID:0000000005146869
Component DescriptionINFOID:0000000005146870
ALKIA1835ZZ
1. Key switch and ignition knob switch M12 2. BCM M18, M19, M20 3. Combination meter M24
4. TCM F9 5. Front door lock assembly LH (key cyl-
inder switch) D14
Front door lock assembly RH D114 6. Main power window and door lock/
unlock switch D7, D8
7. Front door switch LH B8 RH B108 8. Rear door switch LH B18
RH B116 9. Back door latch (door ajar switch)
D503
10. Rear door lock actuator LH D205 RH D305 11. Glass hatch lock actuator D711 12. Back door and glass hatch switch
assembly (glass hatch switch) D706
Item Function
BCM Controls the door lock function and room lamp function.
Door lock and unlock switch Input lock or unlock signal to BCM.
Revision: April 20092010 QX56

AUTOMATIC DOOR LOCKSDLK-13
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Door lock actuator Output lock/unlock signal from BCM and locks/unlocks each door.
Door switch Input door open/close condition to BCM.
Door key cylinder switch • Input lock or unlock signal to main power window and door lock/unlock switch.
• Main power window and door lock/unlock switch transmits door lock/unlock signal to BCM.
Combination meter • Receive buzzer signal from BCM via CAN communication line, and sounds the buzzer.
• Transmits vehicle speed signal to CAN communication line.
TCM Transmit shift position signal to BCM via CAN communication line.
Item
Function
Revision: April 20092010 QX56