Air INFINITI QX56 2004 Factory Service Manual

POWER WINDOW SYSTEM
GW-51
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Revision: August 20072004 QX56
2. CHECK FRONT DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front door switch LH or RH and BCM.
3. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and BCM connec-
tor M19 terminal 47 (LH) or connector M18 terminal 12 (LH).
4. Check continuity between front door switch connector B8 (LH)
or B108 (RH) terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR SWITCH
Check continuity between each front door switch terminal 2 and body ground part of front door switch.
OK or NG
OK >> Replace BCM.
NG >> Replace malfunctioning front door switch.Front LH
2 (SB) - 47 (SB) : Continuity should exist.
Front RH
2 (R/L) - 12 (R/L) : Continuity should exist.
2 (SB or R/L) - Ground : Continuity should not exist.
LIIA0947E
Terminal Door switch Continuity
2Body ground part
of front door
switchPushed No
Released Yes
LIIA0948E

GW-52
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
Front Door Lock Assembly LH (Key Cylinder Switch) CheckEIS002V7
1. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) INPUT SIGNAL
With CONSULT-II

Check front door lock assembly LH (key cylinder switch) (“KEY
CYL LK SW”) in “DATA MONITOR” mode for “POWER DOOR
LOCK SYSTEM” with CONSULT-II. Refer to GW-34, "
DATA
MONITOR" .

Check front door lock assembly LH (key cylinder switch) (“KEY
CYL UN-SW”) in “DATA MONITOR” mode for “POWER DOOR
LOCK SYSTEM” with CONSULT-II. Refer to GW-34, "
DATA
MONITOR" .
Without CONSULT-II
Check voltage between main power window and door lock/unlock switch connector and ground.
OK or NG
OK >> Front door lock assembly LH (key cylinder switch) is OK.
NG >> GO TO 2.
2. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front door lock assembly (key cylinder
switch).
3. Check continuity between main power window and door lock/
unlock switch connector D7 terminals 4, 6 and front door lock
assembly LH (key cylinder switch) connector D14 terminals 1, 6.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.“KEY CYL LK-SW” should be “ON” when key inserted
in door key cylinder is turned to lock.
LIIA0047E
“KEY CYL UN-SW” should be “ON” when key inserted
in door key cylinder is turned to unlock.
LIIA0050E
ConnectorTerminals (Wire color)
Key position Voltage (V)
(Approx.)
(+) (–)
D76 (R)
GroundNeutral / Unlock 5
Lock 0
4 (L)Neutral / Lock 5
Unlock 0
LIIA1448E
6 (R) - 6 (R) : Continuity should exist.
4 (L) - 1 (L) : Continuity should exist.
LIIA1571E

POWER WINDOW SYSTEM
GW-53
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Revision: August 20072004 QX56
3. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) GROUND
Check continuity between front door lock assembly LH (key cylinder switch) connector D14 terminal 5 and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH)
Check continuity between front door lock assembly LH (key cylinder switch) terminals 1, 6 and 5.
OK or NG
OK >> Replace main power window and door lock/unlock
switch.
NG >> Replace front door lock assembly LH (key cylinder
switch). 5 (B) - Ground : Continuity should exist.
LIIA1572E
Terminals Key position Continuity
6
5Neutral / Unlock No
Lock Yes
1Neutral / Lock No
Unlock Yes
LIIA1573E

POWER WINDOW SYSTEM
GW-55
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Revision: August 20072004 QX56
3. CHECK POWER WINDOW SWITCH GROUND
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and power window and door lock/unlock
switch RH.
3. Check continuity between main power window and door lock/unlock switch connector D8 terminal 17 and
ground.
4. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 11 and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.17 (B) - Ground : Continuity should exist.
LIIA0392E
11 (B) - Ground : Continuity should exist.
LIIA1270E

GW-56
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
4. CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M18 terminal 22 and main power window and door lock/unlock
switch connector D7 terminal 14.
3. Check continuity between BCM connector M18 terminal 22 and power window and door lock/unlock
switch RH connector D105 terminal 16.
OK or NG
OK >> Replace main power window and door lock/unlock
switch or power window and door lock/unlock switch
RH.
NG >> Repair or replace harness.
Rear Power Window Control Unit LH or RH Power Supply and Ground Circuit
Check
EIS0038W
1. CHECK POWER WINDOW POWER SUPPLY CIRCUIT
1. Disconnect rear power window control unit LH or RH.
2. Turn ignition switch ON.
3. Check voltage between rear power window control unit LH or RH connector D209 (LH), D309 (RH) termi-
nal 13 and ground.
OK or NG
OK >> GO TO 2
NG >> GO TO 322 (W/V) - 14 (LG/W) : Continuity should exist.
LIIA0394E
22 (W/V) - 16 (LG/W) : Continuity should exist.
LIIA1271E
13 (W/R) - Ground : Battery voltage
LIIA1346E

POWER WINDOW SYSTEM
GW-57
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Revision: August 20072004 QX56
2. CHECK POWER WINDOW GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear power window control unit LH or RH connector D209 (LH), D309 (RH) ter-
minal 15 and ground.
OK or NG
OK >> Rear power window control unit LH or RH power supply
and ground circuit is OK. Refer to GW-36, "
Trouble
Diagnoses Symptom Chart" .
NG >> Repair or replace harness.
3. CHECK REAR POWER WINDOW CONTROL UNIT LH OR RH POWER SUPPLY CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M20 terminal 69 and rear power window control unit LH or RH
connector D209 (LH), D309 (RH) terminal 13.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
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.15 (B) - Ground : Continuity should exist.
LIIA2043E
69 (W/R) - 13 (W/R) : Continuity should exist.
LIIA1352E
69 (W/R) - Ground : Battery voltage
WIIA0508E

GW-58
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
Rear Power Window Switch LH or RH Power Supply and Ground Circuit CheckEIS0038X
1. CHECK POWER WINDOW POWER SUPPLY CIRCUIT
1. Disconnect rear power window switch LH or RH.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch LH or RH connector D203 (LH), D303 (RH) terminals 2,
3 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK POWER WINDOW GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear power window switch LH or RH connector D203 (LH), D303 (RH) terminals
1, 7 and ground.
OK or NG
OK >> Rear power window switch LH or RH power supply and
ground circuit is OK. Refer to GW-36, "
Trouble Diag-
noses Symptom Chart" .
NG >> Repair or replace harness.
Rear Power Window Motor LH Circuit Check EIS0038Y
1. CHECK REAR POWER WINDOW SWITCH LH OUTPUT SIGNAL
1. Disconnect rear power window switch LH.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch LH connector D203 terminals 4, 5 and ground.
OK or NG
OK >> Replace rear power window switch LH.
NG >> GO TO 2.2, 3 (G/W) - Ground : Battery voltage
LIIA1348E
1, 7 (L) - Ground : Continuity should exist.
LIIA2044E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D2034 (W)
GroundClosing 0
Opening Battery voltage
5 (W/R)Closing Battery voltage
Opening 0
LIIA1364E

POWER WINDOW SYSTEM
GW-59
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Revision: August 20072004 QX56
2. CHECK REAR POWER WINDOW SWITCH LH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH.
3. Check continuity between rear power window switch LH connector D203 terminals 4, 5 and rear power
window control unit LH connector D209 terminals 9, 10.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR LH CIRCUIT
1. Disconnect rear power window motor LH.
2. Check continuity between rear power window control unit LH connector D209 terminals 11, 12 and rear
power window motor LH connector D204 terminals 1, 2.
OK or NG
OK >> Replace rear power window motor LH.
NG >> Repair or replace harness.
Rear Power Window Motor RH Circuit Check EIS0038Z
1. CHECK REAR POWER WINDOW SWITCH RH OUTPUT SIGNAL
1. Disconnect rear power window switch RH.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch RH connector D303 terminals 4, 5 and ground.
OK or NG
OK >> Replace rear power window switch RH.
NG >> GO TO 2.4 (W) - 9 (W) : Continuity should exist.
5 (W/R) - 10 (W/R) : Continuity should exist.
LIIA1379E
11 (O) - 2 (O) : Continuity should exist.
12 (BR) - 1 (BR) : Continuity should exist.
LIIA1380E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D3034 (W)
GroundClosing 0
Opening Battery voltage
5 (W/L)Closing Battery voltage
Opening 0
LIIA1364E

GW-60
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
2. CHECK REAR POWER WINDOW SWITCH RH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit RH.
3. Check continuity between rear power window switch RH connector D303 terminals 4, 5 and rear power
window control unit RH connector D309 terminals 9, 10.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR RH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH.
3. Check continuity between rear power window control unit RH connector D309 terminals 11, 12 and rear
power window motor RH connector D304 terminals 1, 2.
OK or NG
OK >> Replace rear power window motor RH.
NG >> Repair or replace harness.
Limit Switch Circuit Check Rear LH and RHEIS00390
1. CHECK REAR POWER WINDOW MOTOR LH AND RH LIMIT SWITCH SIGNAL
1. Disconnect rear power window control unit LH or RH.
2. Turn ignition switch ON.
3. Check voltage between rear power window control unit LH or RH connector and ground.
OK or NG
OK >> Limit switch circuit is OK.
NG >> GO TO 2.4 (W) - 9 (W) : Continuity should exist.
5 (W/L) - 10 (W/L) : Continuity should exist.
LIIA1379E
11 (O) - 2 (O) : Continuity should exist.
12 (BR) - 1 (BR) : Continuity should exist.
LIIA1380E
ConnectorTerminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (-)
D209 (LH)
D309 (RH)3 (G) GroundRear LH or RH door window
is between fully-open and just
before fully-closed position
(ON)0
Rear LH or RH door window
is between just before fully-
closed position and fully-
closed position (OFF)5
LIIA1381E

POWER WINDOW SYSTEM
GW-61
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Revision: August 20072004 QX56
2. CHECK LIMIT SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH.
3. Check continuity between rear power window motor LH or RH connector D204 (LH), D304 (RH) terminal
6 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS CONTINUITY
Check continuity between rear power window motor LH or RH connector D204 (LH), D304 (RH) terminal 6 and
rear power window control unit LH or RH connector D209 (LH), D309 (RH) terminal 3.
OK or NG
OK >> Replace rear power window switch LH or RH.
NG >> Repair or replace harness.
4. CHECK REAR POWER WINDOW SWITCH LH OR RH OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between rear power window control unit LH or RH harness connector D209 (LH) or D309
(RH) terminal 2 (SB) and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace rear power window control unit LH or RH.6 (G) - Ground : Continuity should exist.
LIIA0923E
6 (G) - 3 (G) : Continuity should exist.
LIIA1383E
2 (SB) - Ground : Approx. 5V
LIIA1384E