2006 INFINITI QX56 ECU

POWER WINDOW SYSTEMGW-33
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Revision: November 2009 2006 QX56
Work FlowEIS005XV
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-16, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-35, "
Trouble Diagnoses Symptom Chart" .
4. Does power window system operate normally? Yes, GO TO 5, If No, GO TO 3.
5. Inspection End.
CONSULT-II Function (BCM)EIS005XW
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL) ”.
BCM diagnostic
test item Diagnostic mode
Content
Inspection by part WORK SUPPORT
Supports 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.
BBIA0369E
BCIA0029E

POWER WINDOW SYSTEMGW-51
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Revision: November 2009 2006 QX56
Power Window Serial Link Check Front LH and RHEIS005Y9
1. CHECK BUS OUTPUT SIGNAL
With CONSULT-II
Check door lock and unlock switch ( “LOCK SW DR/AS”, “UNLK SW
DR/AS ”) in DATA MONITOR mode for “MULTI REMOTE ENT” with
CONSULT-II. Refer to BL-27, "
DATA MONITOR" .

When door lock and unlock switch is turned to LOCK

When door lock and unlock switch is turned to UNLOCK
Without CONSULT-II
1. Remove key from ignition switch, and the door of driver side and passenger side is closed.
2. Check the signal between BCM connector and ground with oscilloscope when door lock and unlock switch (front LH and
front RH) is turned “LOCK ” or “UNLOCK ”.
3. Make sure signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch
(front LH and front RH) is turned “LOCK ” or “UNLOCK ”.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK BCM BUS OUTPUT SIGNAL
Check power window serial link ( “POWER WINDOW DOWN”) in
“ACTIVE TEST ” mode with CONSULT-II. Refer to GW-34, "
ACTIVE
TEST" .
When “ACTIVE TEST ” is executed, is the window of driver side and
passenger side lowered.
OK or NG
OK >> Further inspection is necessary. Refer to GW-35, "Trou-
ble Diagnoses Symptom Chart" .
NG >> Replace BCM. Refer to .BCS-20, "
BCM"
LOCK SW DR/AS : ON
UNLK SW DR/AS : ON
LIIA0172E
ConnectorTerminals (Wire color)
Signal
(+) (-)
M18 22 GroundLIIA0391E
PIIA2344E
PIIA3080E

GW-66
FRONT DOOR GLASS AND REGULATOR
Revision: November 20092006 QX56
Fitting Inspection

Check that the glass is securely fit into the glass run groove.

Lower the glass slightly [approximately 10 to 20 mm (0.39 to 0.79 in)] and check that the clearance to the
sash is parallel. If the clearance between the glass and sash is not parallel, loosen the regulator bolts,
guide rail bolts, and glass and guide rail bolts to correct the glass position.
FRONT DOOR GLASS REGULATOR
Removal
1. Remove the front door finisher. Refer to EI-32, "DOOR FINISHER" .
2. Remove the hole cover over rear glass bolt.
3. Temporarily reconnect the power window switch.
4. Operate the power window main switch to raise/lower the door window until the glass bolts can be seen.
5. Remove the inside seal.
6. Remove the glass bolts.
7. Raise the front door glass and hold it in place with suitable tool.
8. Disconnect the harness connector from the regulator assembly.
9. Remove the bolts and the regulator assembly.
Disassembly And Assembly
Remove the regulator motor from the regulator assembly.
Inspection After Removal
Check the regulator assembly for the following items. If a malfunc-
tion is detected, replace or grease it.

Wire wear

Regulator deformation

Grease condition for each sliding part
The arrows in the figure show the application points of the body
grease.
Installation
1. Install the regulator assembly. Refer to GW-66, "FRONT DOOR GLASS REGULATOR" .
2. Connect the harness connector to the regulator assembly.
3. Align the glass and install the glass bolts.
4. Reset the limit switch. Refer to GW-66, "
Setting of Limit Switch" .
5. Install front door finisher. Refer to EI-32, "
DOOR FINISHER" .
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.
LIIA0670E
Glass bolts: 6.1 N·m (0.62 kg-m, 54 in-lb)

GW-68
REAR DOOR GLASS AND REGULATOR
Revision: November 20092006 QX56
REAR DOOR GLASS AND REGULATORPFP:82300
Removal and InstallationEIS0062O
REAR DOOR GLASS
Removal
1. Remove the rear door finisher. Refer to EI-33, "REMOVAL" .
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. Remove the inside seal.
5. Remove the glass run from the partition glass.
6. Remove the partition sash bolt (lower) and screw (upper) to remove the sash.
7. Remove the glass bolts and glass.
Installation
Installation is in the reverse order of removal.

Reset the power window limit switch. Refer to GW-70, "SETTING AFTER INSTALLATION" .
Fitting Inspection

Check that the glass is securely fit into the glass run groove.

Lower the glass slightly [approximately 10 to 20 mm (0.39 to 0.79 in)], and check that the clearance to the
sash is parallel. If the clearance between the glass and sash is not parallel, loosen the regulator bolts,
guide rail bolts, and glass and carrier plate bolts to correct the glass position.
WIIA0298E
SIIA0290E
Glass bolts : 6.1 N·m (0.62 Kg-m, 54 in-lb)

REAR WINDOW DEFOGGERGW-81
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Revision: November 2009 2006 QX56
CONSULT-II Function (BCM)EIS005YU
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL) ”.
5. Touch “BCM”.
If “BCM ” is not indicated, go to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnostic
test item Diagnostic mode
Content
Inspection by part WORK SUPPORT
Supports 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.
BBIA0369E
BCIA0029E
BCIA0030E

GW-90
REAR WINDOW DEFOGGER
Revision: November 20092006 QX56
Door Mirror RH (Door Mirror Defogger) Circuit CheckEIS005Z2
1. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror RH.
3. Turn ignition switch ON.
4. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror RH connector D107 termi- nal 11 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR MIRROR DEFOGGER
Check continuity between each door mirror RH terminals 10 and 11.
OK or NG
OK >> Repair or replace harness.
NG >> Replace door mirror RH. Refer to GW-94, "
Door Mirror
Assembly" .
Rear Window Defogger Signal CheckEIS005Z3
1. CHECK AV COMMUNICATION LINE
AV communication line check is executed. Refer to AV- 4 4 , "
Audio Communication Line Check" .
OK or NG
OK >> GO TO 2.
NG >> Replace display control unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
D107 10 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
LIIA1456E
11 - Ground
: Continuity should exist.
LIIA1458E
10 - 11 : Continuity should exist.
LIIA2725E
Is rear window defogger displayed on the display?

REAR WINDOW DEFOGGERGW-91
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Revision: November 2009 2006 QX56
2. CHECK CAN COMMUNICATION LINE
CAN communication line check is executed. Refer to LAN-26, "
CAN COMMUNICATION" .
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> In addition, it is necessary to check CAN communication line. Refer to LAN-26, "
CAN COMMUNI-
CATION" .
Filament CheckEIS005Z4
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.
SEL122R
SEL263
SEL265

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ALPHABETICAL INDEX
Rear combination lamp removal and installation ... LT-
125
Rear cover packing replacement diff. ..............
RFD-28
Rear door ........................................... BL-128, GW-68
Rear seat belt ...................................................... SB-6
Rear suspension ............................................. RSU-26
Rear view monitor ............................................... DI-73
Rear washer .................................................... WW-32
Rear window defogger ..................................... GW-74
Rear wiper ....................................................... WW-32
Refrigerant connection precaution .................... ATC-7
Refrigerant discharging evacuating charging ATC-171
Refrigerant general precaution .......................... ATC-6
Refrigerant lines ........... ATC-171, ATC-179, ATC-180
Refrigerant pressure sensor ............ EC-630, ATC-182
Relay box .......................................................... PG-78
Remote keyless entry system ............................ BL-44
Removal and installation (A/T) ........... AT-243, AT-246
Removal and installation (Transfer) ................. TF-145
Ring gear diff. inspection ................................. RFD-18
Road wheel size ................................................. GI-50
Rocker cover ..................................................... EM-35
Room lamp ....................................................... LT-134
Room lamp - See Interior lamp ........................ LT-134
ROOM/L - Wiring diagram ................................ LT-140
RP/SEN - Wiring diagram ............................... EC-631
S
SAE J1979 - Service $01 - 09 ........................... EC-48
SEAT - Wiring diagram ..................................... SE-83
Seat belt inspection ............................... SB-11, MA-32
Seat belt pre-tensioner .................................... SRS-57
Seat belt, front ..................................................... SB-3
Seat belt, rear ...................................................... SB-6
Seat, front .......................................................... SE-91
Self-diagnosis (Transfer) .................................... TF-50
SEN/PW - Wiring diagram ............................... EC-461
SHIFT - Wiring diagram ................................... AT-222
Shift control (Transfer) ....................... TF-149, TF-176
Shift lock system .............................................. AT-221
Shock absorber (front) .................................... FSU-11
Shock absorber (rear) ..................................... RSU-35
Side air bag (satellite) sensor .......................... SRS-56
Side curtain air bag ......................................... SRS-53
Side trim .............................................................. EI-35
SMJ (super multiple junction) ............................ PG-74
SONAR - Wiring diagram .................................... DI-63
Spare tire size .................................................... GI-50
Spark plug ......................................................... EM-29
Spark plug replacement .................................... MA-18
Specification value .......................................... EC-134
Speedometer ......................................................... DI-5
Spiral cable ..................................................... SRS-48
SROOF - Wiring diagram .................................. RF-13
SRS - See Supplemental Restraint System ...... SRS-5
SRS - Wiring diagram ..................................... SRS-12
SRS Trouble diagnoses .................................... SRS-8
Stabilizer bar (front) ......................................... FSU-12
Stabilizer bar (rear) ......................................... RSU-42
Stall test (A/T) .................................................... AT-51
Standardized relay ............................................. PG-72
START - Wiring diagram ................................... SC-11
Starting system .................................................. SC-10
Steering gear, linkage and transfer gear inspection .....
MA-29
Steering linkage ................................................. PS-15
Steering wheel and column ................................. PS-7
Step lamp ......................................................... LT-135
Stop lamp ......................................................... LT-106
Stop lamp switch ................. EC-511, EC-523, EC-586
STOP/L - Wiring diagram ................................. LT-107
Strut (front) ...................................................... FSU-10
STSIG - Wiring diagram .................................. AT-101
Sub-oil pump (Transfer) ...................... TF-154, TF-167
Sun gear (Transfer) ............................ TF-149, TF-176
Sun roof, electric ................................................ RF-10
Sunload sensor .............................................. ATC-140
Sunroof .............................................................. RF-24
Supplemental Restraint System ........................ SRS-5
Supplemental restraint system - Wiring diagram . SRS-
12
Symbols and abbreviations ..................... GI-10, GI-23
Symptom matrix chart ........................................ EC-92
System readiness test (SRT) code .................... EC-54
T
Tachometer .......................................................... DI-5
Tail lamp ........................................................... LT-111
TAIL/L - Wiring diagram .................................... LT-113
TCM circuit diagram .......................................... AT-50
TCM inspection table ......................................... AT-83
TCS - Wiring diagram ..................................... BRC-16
TCS (traction control system) ........................... BRC-7
TCS component parts and connector location BRC-14
TCS wheel sensors ........................................ BRC-14
Telephone .......................................................... AV-64
Theft warning system - See Vehicle security (Theft warn-
ing) system ......................................................... BL-75
Thermometer ...................................................... DI-26
Three way catalyst ............................................. EM-21
Three way catalyst function (Bank 1) .............. EC-354
Three way catalyst function (Bank 2) .............. EC-354
Three way catalyst precautions ............................ GI-5
Throttle control motor ...................................... EC-540
Throttle control motor relay .............................. EC-528
Throttle position sensor (TPS) ... EC-198, EC-320, EC-
483, EC-485, EC-560
Throttle valve closed position learning .............. EC-78
Tie-rod ............................................................... PS-15
Timing chain ...................................................... EM-37
Tire rotation ....................................................... MA-28
Tire size .............................................................. GI-50
Torque converter installation AT-244, AT-245, AT-248,
AT-249
Torque convertor clutch solenoid valve .... AT-118, AT-
120