2007 INFINITI QX56 rear door

REAR DOOR GLASS AND REGULATOR
GW-63
< SERVICE INFORMATION >
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P Removal
1. Remove the rear door finisher. Refer to EI-31.
2. Temporarily reconnect the power window switch.
3. Operate the power window switch to raise/lower the door win-
dow until the glass bolts can be seen.
4. Partially remove the inside seal.
5. Remove the glass bolts.
6. Raise the glass and hold in place with suitable tool.
7. Remove the bolts, and the regulator and guide channel.
8. Disconnect the connector from the regulator assembly.
Inspection after removal
Check the regulator assembly for the following items. If a malfunction is detected, replace or grease it.
• Gear wear
• Regulator deformation
• Spring damage
• Grease condition for each sliding part
Installation
1. Connect the harness connector to the regulator assembly and
install the regulator and guide channel.
2. Install the glass from outside to ensure that it is in both the front
and rear glass channels. Tighten glass bolts to the specified
torque.
• Reset the power window limit switch.
3. Install the inside seal.
4. Install the rear door finisher. Refer to EI-31
.
SIIA0290E
SIIA0291E
SIIA0291E
Glass bolts : 6.1 N·m (0.62 kg-m, 54 in-lb)
SIIA0290E

GW-64
< SERVICE INFORMATION >
REAR DOOR GLASS AND REGULATOR
SETTING AFTER INSTALLATION
Setting of Limit Switch
If any of the following work has been done, set the limit switch (integrated in the motor).
• Removal and installation of the regulator.
• Removal and installation of the motor from the regulator.
• Removal and installation of the glass.
• Removal and installation of the glass run.
Resetting
After installing each component, perform the following procedure to reset the limit switch.
1. Raise the glass to the top position.
2. While pressing and holding the reset switch, lower the glass to
the bottom position.
3. Release the reset switch. Verify that the reset switch returns to
the original position, if not, pull the switch using suitable tool.
4. Raise the glass to the top position.
CAUTION:
Do not operate the glass automatically to raise the glass to the
top position.
SIIA0347E

GW-68
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER
Component Parts and Harness Connector LocationINFOID:0000000003533066
System DescriptionINFOID:0000000003533067
The rear window defogger system is controlled by BCM (body control module) and IPDM E/R (intelligent
power distribution module engine room).
The rear window defogger operates only for approximately 15 minutes.
Power is supplied at all times
• through 15A fuses (No. 43, 46, and 47 located in the IPDM E/R)
• to rear window defogger relay and heated mirror relay (located in the IPDM E/R)
• through 50A fusible link (letter f, located in the fuse and fusible link box)
• to BCM terminal 70.
With the ignition switch turned to ON or START position, power is supplied
• through ignition switch
• to rear window defogger relay (located in the IPDM E/R)
• through 10A fuse (No. 59, located in the fuse and relay box)
• to BCM terminal 38
• through 10A fuse [No. 8, located in the fuse block (J/B)]
• to front air control terminal 14.
Ground is supplied
• to BCM terminal 67
• to front air control terminal 1
• through body grounds M57, M61 and M79
1. A. Steering column
B. BCM M18, M20 (view with instru-
ment panel removed)2. Front air control M49, M50 3. A. Rear window defogger ground
connector D604
B. Rear window defogger connector
D406
4. IPDM E/R, E120, E122, E124 5. Door mirror LH (door mirror defog-
ger) D4
Door mirror RH (door mirror defog-
ger) D107
LIIA2716E

REAR WINDOW DEFOGGER
GW-69
< SERVICE INFORMATION >
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• to IPDM E/R terminals 38 and 59
• through body grounds E9, E15 and E24.
When front air control (rear window defogger switch) is turned to ON, ground is supplied
• to BCM terminal 9
• through front air control terminal 11
• through front air control terminal 1
• through body grounds M57, M61 and M79.
Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON.
Then it sends rear window defogger switch signals to IPDM E/R and display control unit via CAN communica-
tion (CAN-H, CAN-L).
When display control unit receives rear window defogger switch signals, and displays on the screen.
When IPDM E/R receives rear window defogger switch signals, ground is supplied
• to rear window defogger relay (located in the IPDM E/R)
• through IPDM E/R terminal 38
• through IPDM E/R terminal 59
• through body grounds E9, E15 and E24
and then rear window defogger relay is energized.
With power and ground supplied, rear window defogger filaments heat and defog the rear window.
When rear window defogger relay is turned to ON, power is supplied
• through heated mirror relay (located in the IPDM E/R)
• through IPDM E/R terminal 23
• to door mirror defogger (LH and RH) terminal 10.
Door mirror defogger (LH and RH) is grounded through body grounds M57, M61 and M79.
With power and ground supplied, rear window defogger filaments heat and defog the rear window and door
mirror defogger filaments heat and defog the mirror.
CAN Communication System DescriptionINFOID:0000000003533068
Refer to LAN-4.

GW-74
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
Work Flow
INFOID:0000000003533073
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-68, "
System Description".
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-74,
"Trouble Diagnosis Symptom Chart".
4. Does rear window defogger and door mirror defogger operate normally? YES: GO TO 5, NO: GO TO 3.
5. Inspection end.
CONSULT-II Function (BCM)INFOID:0000000003533074
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
Trouble Diagnosis Symptom ChartINFOID:0000000003533075
Make sure other systems using the signal of the following systems operate normally.
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Monitor item “Operation” Content
REAR DEF SW “ON/OFF”Displays “Press (ON)/others (OFF)” status determined with the rear window defogger
switch.
IGN ON SW “ON/OFF” Displays “IGN (ON)/OFF” status determined with the ignition switch signal.
Test item Content
REAR WINDOW DEFOGGER Gives a drive signal to the rear window defogger to activate it.
Symptom Diagnoses / Service procedure Refer to page
Rear window defogger and door mirror defoggers do not
operate.1. BCM power supply and ground circuit checkBCS-15
2. IPDM E/R auto active test checkPG-20
3. Rear window defogger switch circuit checkGW-75
4. Rear window defogger circuit checkGW-76
5. Replace IPDM E/ RPG-28

REAR WINDOW DEFOGGER
GW-75
< SERVICE INFORMATION >
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BCM Power Supply and Ground Circuit InspectionINFOID:0000000003533076
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection".
Rear Window Defogger Switch Circuit InspectionINFOID:0000000003533077
1.CHECK REAR WINDOW DEFOGGER SWITCH OPERATION
With CONSULT-II
Check (“REAR DEF SW”, “IGN ON SW”) in DATA MONITOR mode
with CONSULT-II. Refer to GW-74, "
CONSULT-II Function (BCM)".
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Rear window defogger switch check is OK.
NG >> GO TO 2.
2.CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT HARNESS CONTINUITY
Rear window defogger does not operate but both of door
mirror defoggers operate.1. Rear window defogger circuit checkGW-762. Filament checkGW-80
3. Replace IPDM E/RPG-28
Both door mirror defoggers do not operate but rear window
defogger operates.1. Door mirror defogger power supply circuit checkGW-77
2. Replace IPDM E/RPG-28
Door mirror defogger LH does not operate. 1. Door mirror LH (door mirror defogger) circuit checkGW-78
Door mirror defogger RH does not operate. 1. Door mirror RH (door mirror defogger) circuit checkGW-79
Rear window defogger switch does not light, and rear win-
dow defogger is not shown on the display, but the rear win-
dow defogger operates. 1. Rear window defogger signal checkGW-80
Symptom Diagnoses / Service procedure Refer to page
When rear window defogger switch is turned to ON
REAR DEF SW : ON
When ignition switch is turned to ON
IGN ON SW : ON
PIIA2373E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M18 9 GroundRear window defogger
switch is pressed.0
Rear window defogger
switch is OFF.5
WIIA0523E

REAR WINDOW DEFOGGER
GW-77
< SERVICE INFORMATION >
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3.CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector
D604 terminal - and ground.
OK or NG
OK >> Check filament. Refer to GW-80, "Filament Check".
• If filament is OK.
Check the condition of the harness and the connector.
• If filament is NG.
Repair filament.
NG >> Repair or replace harness.
4.CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector E124 terminal 60
and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R".
NG >> Repair or replace harness.
Door Mirror Defogger Power Supply Circuit InspectionINFOID:0000000003533079
1.CHECK FUSE
Check if any of the following fuses in fuse block (J/B) are blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R".
3.CHECK DOOR MIRROR DEFOGGER CIRCUIT- - Ground : Continuity should exist.
LIIA0409E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
E124 60 GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
LIIA2190E
COMPONENT PARTS AMPERE FUSE NO.
IPDM E/R 15A 43
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
E120 23 GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
LIIA0977E

GW-78
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and door mirror LH or RH.
3. Check continuity between IPDM E/R connector E120 terminal
23 and door mirror connector D4 (LH) or D107 (RH) terminal 10.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between each door mirror connector D4 (LH) or
D107 (RH) terminal 11 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK DOOR MIRROR DEFOGGER
Check continuity between door mirror LH or RH terminals 10 and 11.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace malfunctioning door mirror LH or RH. Refer to
GW-84, "
Door Mirror Assembly".
Door Mirror LH (Door Mirror Defogger) Circuit InspectionINFOID:0000000003533080
1.CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2.CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT23 - 10 : Continuity should exist.
WIIA0529E
11 - Ground : Continuity should exist.
LIIA1454E
10 - 11 : Continuity should exist.
LIIA2725E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D4 10 GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
LIIA1456E