Page 2185 of 3383

GW-40
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 terminal 69 and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
Front Power Window Motor LH Circuit CheckEIS005Y1
1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/ unlock switch connector D7 terminals 8, 11 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace main power window and door lock/unlock switch. Refer to EI-32, "
REMOVAL" .
2. CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front power window motor LH.
3. Check continuity between main power window and door lock/ unlock switch connector D7 terminals 8, 11 and front power win-
dow motor LH connector D9 terminals 1, 2.
OK or NG
OK >> Replace front power window motor LH.
NG >> Repair or replace harness. Refer to GW-66, "
FRONT DOOR GLASS REGULATOR" .
69 - Ground
: Battery voltage
WIIA0508E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
D7 8
Ground UP Battery voltage
DOWN 0
11 UP
0
DOWN Battery voltage
LIIA0317E
8 - 2 : Continuity should exist.
11 - 1 : Continuity should exist.
LIIA1260E
Page 2186 of 3383

POWER WINDOW SYSTEMGW-41
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Revision: November 2009 2006 QX56
Front Power Window Motor RH Circuit CheckEIS005Y2
1. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH OUTPUT SIGNAL
1. Connect power window and door lock/unlock switch RH.
2. Turn ignition switch ON.
3. Check voltage between power window and door lock/unlock switch RH connector D105 terminals 8, 9 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace power window and door lock/unlock switch RH. Refer to EI-32, "
REMOVAL" .
2. CHECK FRONT POWER WINDOW MOTOR RH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH and power window and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock switch RH connector D105 terminals 8, 9 and front power win-
dow motor RH connector D104 terminals 1, 2.
OK or NG
OK >> Replace front power window motor RH. Refer to GW-66,
"FRONT DOOR GLASS REGULATOR" .
NG >> Repair or replace harness.
Limit Switch Circuit Check Front LHEIS005Y3
1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH LIMIT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/ unlock switch connector D7 termimal 9 and ground.
OK or NG
OK >> Limit switch circuit is OK.
NG >> GO TO 2.
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
D105 9
Ground UP
0
DOWN Battery voltage
8 UP Battery voltage
DOWN 0
LIIA1261E
8 - 2 : Continuity should exist.
9 - 1 : Continuity should exist.
LIIA1262E
ConnectorTerminal
Condition Voltage (V)
(Approx.)
(+) (-)
D7 9 Ground Front power window LH is
between fully-open and just
before fully-closed position
(ON)
0
Front power window LH is
between just before fully-
closed position and fully-
closed position (OFF) 5
LIIA0339E
Page 2187 of 3383

GW-42
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
2. CHECK FRONT POWER WINDOW MOTOR LH LIMIT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor LH connector D9 terminal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. CHECK LIMIT SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front power window motor LH connec- tor D9 terminal 6 and ground.
OK or NG
OK >> Replace front power window motor LH. Refer to GW-66,
"FRONT DOOR GLASS REGULATOR" .
NG >> GO TO 4.
4. CHECK HARNESS CONTINUITY
1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between front power window motor LH connec- tor D9 terminal 6 and main power window and door lock/unlock
switch connector D7 terminal 2.
OK or NG
OK >> Replace main power window and door lock/unlock switch. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch.
3. Check continuity between front power window motor LH connec- tor D9 terminal 5 and main power window and door lock/unlock
switch connector D7 terminal 9.
OK or NG
OK >> Replace main power window and door lock/unlock switch. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness. 5 - Ground : Approx. 5V
LIIA0922E
6 - Ground
: Continuity should exist.
LIIA0923E
6 - 2: Continuity should exist.
LIIA0924E
5 - 9: Continuity should exist.
LIIA0925E
Page 2188 of 3383

POWER WINDOW SYSTEMGW-43
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Limit Switch Circuit Check Front RHEIS005Y4
1. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH LIMIT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between power window motor RH connector D105 terminal 15 and ground.
OK or NG
OK >> Limit switch circuit is OK.
NG >> GO TO 2.
2. CHECK FRONT POWER WINDOW MOTOR RH LIMIT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor RH connector D104 terminal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. CHECK LIMIT SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front power window motor RH con- nector D104 terminal 6 and ground.
OK or NG
OK >> Replace front power window motor RH. Refer to GW-66,
"FRONT DOOR GLASS REGULATOR" .
NG >> GO TO 4.
Connector Te r m i n a l s
Condition Voltage (V)
(Approx.)
(+) (-)
D105 15 Ground Front power window RH is
between fully-open and just
before fully-closed position
(ON)
0
Front power window RH is
between just before fully-
closed position and fully-
closed position (OFF) 5
LIIA1263E
5 - Ground
: Approx. 5V
LIIA0922E
6 - Ground: Continuity should exist.
LIIA0923E
Page 2189 of 3383

GW-44
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
4. CHECK HARNESS CONTINUITY
1. Disconnect power window and door lock/unlock switch RH.
2. Check continuity between front power window motor RH con- nector D104 terminal 6 and power window and door lock/unlock
switch RH connector D105 terminal 3.
OK or NG
OK >> Replace power window and door lock/unlock switch RH. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 15 and front power window
motor RH connector D104 terminal 5.
OK or NG
OK >> Replace power window and door lock/unlock switch RH. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness.
Encoder Circuit Check Front LHEIS005Y5
1. CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor LH connector D9 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch.
3. Check continuity between front power window motor LH connec- tor D9 terminal 4 and main power window and door lock/unlock
switch connector D7 terminal 15.
OK or NG
OK >> Replace main power window and door lock/unlock switch. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness. 6 - 3 : Continuity should exist.
LIIA1264E
15 - 5
: Continuity should exist.
LIIA1265E
4 - Ground: Approx. 10V
WIIA0513E
4 - 15 : Continuity should exist.
LIIA0936E
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POWER WINDOW SYSTEMGW-45
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Revision: November 2009 2006 QX56
3. CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Check continuity between front power window motor LH connec- tor D9 terminal 6 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK ENCODER GROUND CIRCUIT
1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between front power window motor LH connec- tor D9 terminal 6 and main power window and door lock/unlock
switch connector D7 terminal 2.
OK or NG
OK >> Replace main power window and door lock/unlock switch. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness.
5. CHECK ENCODER SIGNAL
1. Connect front power window motor LH.
2. Turn ignition switch ON.
3. Check the signal between main power window and door lock/ unlock switch connector and ground with oscilloscope.
OK or NG
OK >> Replace main power window and door lock/unlock switch. Refer to EI-32, "REMOVAL" .
NG >> GO TO 6. 6 - Ground
: Continuity should exist.
LIIA0923E
6 - 2: Continuity should exist.
LIIA0924E
Connec-
tor Terminals
Condition Signal
(+) (-)
D7 13 Ground Opening
LIIA0364E
OCC3383D
Page 2191 of 3383

GW-46
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
6. CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH and main power win- dow and door lock/unlock switch.
3. Check continuity between front power window motor LH connec- tor D9 (B) terminal 3 and main power window and door lock/
unlock switch connector D7 (A) terminal 13.
OK or NG
OK >> Replace front power window motor LH. Refer to GW-66,
"FRONT DOOR GLASS REGULATOR" .
NG >> Repair or replace harness.
Encoder Circuit Check Front RHEIS005Y6
1. CHECK POWER WINDOW MOTOR RH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor RH connector D104 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH.
3. Check continuity between front power window motor RH con- nector D104 terminal 4 and power window and door lock/unlock
switch RH connector D105 terminal 4.
OK or NG
OK >> Replace power window and door lock/unlock switch RH. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness.
3. CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Check continuity between front power window motor RH con- nector D104 terminal 6 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4. 3 - 13
: Continuity should exist.
LIIA2210E
4 - Ground: Approx. 10V
WIIA0513E
4 - 4: Continuity should exist.
LIIA1266E
6 - Ground : Continuity should exist.
LIIA0923E
Page 2192 of 3383

POWER WINDOW SYSTEMGW-47
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Revision: November 2009 2006 QX56
4. CHECK ENCODER GROUND CIRCUIT
1. Disconnect power window and door lock/unlock switch RH.
2. Check continuity between front power window motor RH con- nector D104 terminal 6 and power window and door lock/unlock
switch RH connector D105 terminal 3.
OK or NG
OK >> Replace power window and door lock/unlock switch RH. Refer to EI-32, "
REMOVAL" .
NG >> Repair or replace harness.
5. CHECK ENCODER SIGNAL
1. Connect front power window motor RH.
2. Turn ignition switch ON.
3. Check the signal between power window and door lock/unlock switch RH connector and ground with oscilloscope.
OK or NG
OK >> Replace power window and door lock/unlock switch RH. Refer to EI-32, "REMOVAL" .
NG >> GO TO 6.
6. CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH and power window and door lock/unlock switch RH.
3. Check continuity between front power window motor RH con- nector D104 terminal 3 and power window and door lock/unlock
switch RH connector D105 terminal 12.
OK or NG
OK >> Replace front power window motor RH. Refer to GW-66,
"FRONT DOOR GLASS REGULATOR" .
NG >> Repair or replace harness. 6 - 3 : Continuity should exist.
LIIA1264E
Connec-
tor Te r m i n a l s
Condition Signal
(+) (-)
D105 12 Ground Opening
LIIA1267E
OCC3383D
3 - 12 : Continuity should exist.
LIIA1268E