window INFINITI QX56 2009 Factory Service Manual

PWC-26
< COMPONENT DIAGNOSIS >
ENCODER
1. Turn ignition switch ON.
2. Check signal between power window and door lock/unlockswitch RH connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> GO TO 2
2. CHECK FRONT POWER WINDOW MOTOR RH POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between front power window motor RH connector and ground.
Is the measurement value within the specification?
YES >> GO TO 4
NO >> GO TO 3
3. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH and front power window motor RH.
3. Check continuity between power window and door lock/unlock
switch RH connector and front power window motor RH connec-
tor.
4. Check continuity between power window and door lock/unlock switch RH connector and ground.
Te r m i n a l s
Signal
(Reference value)
(+)
(–)
Power window and door
lock/unlock switch RH connector Te r m i n a l
D105 12
Ground Refer to following
signal
15
ALKIA0322ZZ
ALKIA0305GB
Te r m i n a l
Voltage (V)(Approx.)
(+)
(–)
Front power window
motor RH connector Te r m i n a l
D105 4 Ground 10
WIIA0513E
Power window and door lock/unlock
switch RH connector Te r m i n a l
Front power window
motor RH connector
Terminal Continuity
D105 (A) 4 D104 (B) 4 Yes
ALKIA1023ZZ
Revision: December 20092009 QX56

ENCODERPWC-27
< COMPONENT DIAGNOSIS >
C
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B
PWC
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Is the inspection result normal?
YES >> Replace power window and door lock/unlock switch RH. Refer to PWC-118, "Removal and Instal-
lation".
NO >> Repair or replace harness.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH.
3. Check continuity between front power window motor RH con- nector and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> GO TO 5
5. CHECK HARNESS CONTINUITY 2
1. Disconnect power window and door lock/unlock switch RH.
2. Check continuity between power window and door lock/unlock switch RH connector and front power window motor RH connec-
tor.
Is the inspection result normal?
YES >> Replace power window and door lock/unlock switch RH. Refer to PWC-118, "Removal and Installation"
.
NO >> Repair or replace harness.
6. CHECK HARNESS CONTINUITY 3
1. Disconnect power window and door lock/unlock switch RH.
2. Check continuity between power window and door lock/unlock switch RH connector and front power window motor RH connec-
tor.
3. Check continuity between power window and door lock/unlock switch RH connector and ground.
Power window and door lock/
unlock switch RH connector Te r m i n a l
GroundContinuity
D105 (A) 4 No
Front power window motor RH connector Terminal
GroundContinuity
D104 6 Yes
LIIA0923E
Power window and door lock/unlock switch RH connector Te r m i n a l
Front power window
motor RH connector Terminal Continuity
D105 3 D104 6 Yes
LIIA1264E
Power window and door lock/unlock
switch RH connector Te r m i n a l
Front power window
motor RH connector Terminal Continuity
D105 (A) 12
D104 (B) 3
Ye s
15 5
ALKIA1024ZZ
Revision: December 20092009 QX56

PWC-28
< COMPONENT DIAGNOSIS >
ENCODER
Is the inspection result normal?
YES >> Replace front power window motor RH. Refer to GW-15, "Removal and Installation".
NO >> Repair or replace harness.
REAR LH
REAR LH : DescriptionINFOID:0000000003775998
Detects condition of the front power window motor LH operation and transmits to main power window and door
lock/unlock switch as pulse signal.
REAR LH : Component Function CheckINFOID:0000000003775999
1. CHECK ENCODER OPERATION
Does front door glass LH perform AUTO open/close operation normally when operating main power window
and door lock/unlock switch?
Is the inspection result normal?
YES >> Encoder operation is OK.
NO >> Refer to PWC-31, "REAR RH : Diagnosis Procedure"
.
REAR LH : Diagnosis ProcedureINFOID:0000000003776000
Encoder Circuit Check
1. CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check the signal between rear power window control unit LH connector D209 terminal 4 and ground with oscilloscope.
Is the inspection result normal?
YES >> GO TO 2
NO >> Replace rear power window control unit LH.
2. CHECK HARNESS CONTINUITY
Power window and door
lock/unlock switch RH con-
nector Te r m i n a l
GroundContinuity
D105 (A) 12
No
15
Connec-
tor Te r m i n a l s
Condition Signal
(+) (-)
D209 4 Ground Opening
LIIA2368E
OCC3383D
Revision: December 20092009 QX56

ENCODERPWC-29
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH and rear power window motor LH.
3. Check continuity between rear power window control unit LH or
RH connector D209 terminal 4 and rear power window motor LH
connector D204 terminal 3.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR LH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor LH connector D204 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 4
4. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH and rear power win- dow control unit LH.
3. Check continuity between rear power window motor LH connec- tor D204 (B) terminal 4 and rear power window control unit LH
connector D209 (A) terminal 5.
Is the inspection result normal?
YES >> Replace rear power window switch LH. Refer to PWC-
119, "Removal and Installation".
NO >> Repair or replace harness.
5. CHECK ENCODER GROUND
1. Disconnect rear power window motor LH.
2. Check continuity between rear power window motor LH connec- tor D204 terminal 6 and ground.
Is the inspection result normal?
YES >> GO TO 7
NO >> GO TO 6
6. CHECK ENCODER GROUND CIRCUIT 4 - 3 : Continuity should exist.
LIIA1389E
4 - Ground : Approx. 10V
LIIA0378E
4 - 5 : Continuity should exist.
LIIA2358E
6 - Ground : Continuity should exist.
LIIA0380E
Revision: December 20092009 QX56

PWC-30
< COMPONENT DIAGNOSIS >
ENCODER
1. Disconnect rear power window control unit LH.
2. Check continuity between rear power window motor LH connec-tor D204 terminal 6 and rear power window control unit LH con-
nector D209 terminal 3.
Is the inspection result normal?
YES >> Replace rear power window control unit LH.
NO >> Repair or replace harness.
7. CHECK REAR POWER WINDOW MO TOR LH LIMIT SWITCH SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window control unit LH con- nector and ground.
Is the inspection result normal?
YES >> Limit switch circuit is OK.
NO >> GO TO 8
8. CHECK REAR POWER WINDOW SWITCH LH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window control unit LH har- ness connector D209 terminal 2 and ground.
Is the inspection result normal?
YES >> GO TO 9
NO >> Replace rear power window control unit LH.
9. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH.
3. Check continuity between rear power window control unit LH connector D209 terminal 2 and rear power window motor LH
connector D204 terminal 5.
Is the inspection result normal?
YES >> Replace rear power window motor LH. Refer to GW-19,
"Removal and Installation".
NO >> Repair or replace harness.
REAR RH
6 - 3 : Continuity should exist.
LIIA1383E
Connector Te r m i n a l s
Condition Voltage (V)
(Approx.)
(+) (-)
D209 3 Ground Rear power window LH is be-
tween fully-open and just be-
fore fully-closed position (ON)
0
Rear power window LH is be-
tween just before fully-closed
position and fully-closed posi-
tion (OFF) 5
LIIA2366E
2 - Ground : Approx. 5V
LIIA2367E
2 - 5 : Continuity should exist.
LIIA1385E
Revision: December 20092009 QX56

ENCODERPWC-31
< COMPONENT DIAGNOSIS >
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PWC
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REAR RH : DescriptionINFOID:0000000003776001
Detects condition of the front power window motor LH operation and transmits to main power window and door
lock/unlock switch as pulse signal.
REAR RH : Componen t Function CheckINFOID:0000000003776002
1. CHECK ENCODER OPERATION
Does front door glass RH perform AUTO open/close operation normally when operating main power window
and door lock/unlock switch?
Is the inspection result normal?
YES >> Encoder operation is OK.
NO >> Refer to PWC-31, "REAR RH : Diagnosis Procedure"
.
REAR RH : Diagnosis ProcedureINFOID:0000000003776003
Encoder Circuit Check
1. CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check the signal between rear power window control unit RH connector D309 terminal 4 and ground with oscilloscope.
Is the inspection result normal?
YES >> GO TO 2
NO >> Replace rear power window control unit RH.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit RH and rear power window motor RH.
3. Check continuity between rear power window control unit RH
connector D309 terminal 4 and rear power window motor RH
connector D304 terminal 3.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR RH POWER SUPPLY
Connec- tor Te r m i n a l s
Condition Signal
(+) (-)
D309 4 Ground Opening
LIIA2368E
OCC3383D
4 - 3 : Continuity should exist.
LIIA1389E
Revision: December 20092009 QX56

PWC-32
< COMPONENT DIAGNOSIS >
ENCODER
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor RH connectorD304 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 4
4. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH and rear power win- dow control unit RH.
3. Check continuity between rear power window motor RH connec- tor D304 (B) terminal 4 and rear power window control unit RH
connector D309 (A) terminal 5.
Is the inspection result normal?
YES >> Replace rear power window switch RH. Refer to PWC-
119, "Removal and Installation".
NO >> Repair or replace harness.
5. CHECK ENCODER GROUND
1. Disconnect rear power window motor RH.
2. Check continuity between rear power window motor RH connec- tor D304 terminal 6 and ground.
Is the inspection result normal?
YES >> GO TO 7
NO >> GO TO 6
6. CHECK ENCODER GROUND CIRCUIT
1. Disconnect rear power window control unit RH.
2. Check continuity between rear power window motor RH connec- tor D304 terminal 6 and rear power window control unit RH con-
nector D309 terminal 3.
Is the inspection result normal?
YES >> Replace rear power window control unit RH.
NO >> Repair or replace harness.
7. CHECK REAR POWER WINDOW MOTOR RH LIMIT SWITCH SIGNAL
4 - Ground : Approx. 10V
LIIA0378E
4 - 5 : Continuity should exist.
LIIA2358E
6 - Ground : Continuity should exist.
LIIA0380E
6 - 3 : Continuity should exist.
LIIA1383E
Revision: December 20092009 QX56

ENCODERPWC-33
< COMPONENT DIAGNOSIS >
C
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G H
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M A
B
PWC
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1. Turn ignition switch ON.
2. Check voltage between rear power window control unit RH con- nector and ground.
Is the inspection result normal?
YES >> Limit switch circuit is OK.
NO >> GO TO 8
8. CHECK REAR POWER WINDOW SWITCH RH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window control unit RH har- ness connector D309 terminal 2 and ground.
Is the inspection result normal?
YES >> GO TO 9
NO >> Replace rear power window control unit RH.
9. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit RH.
3. Check continuity between rear power window control unit RH connector D309 terminal 2 and rear power window motor RH
connector D304 terminal 5.
Is the inspection result normal?
YES >> Replace rear power window motor RH. Refer to GW-19,
"Removal and Installation".
NO >> Repair or replace harness.
Connector Te r m i n a l s
Condition Voltage (V)
(Approx.)
(+) (-)
D209 3 Ground Rear power window RH is be-
tween fully-open and just be-
fore fully-closed position (ON)
0
Rear power window RH is be-
tween just before fully-closed
position and fully-closed posi-
tion (OFF) 5
LIIA2366E
2 - Ground : Approx. 5V
LIIA2367E
2 - 5 : Continuity should exist.
LIIA1385E
Revision: December 20092009 QX56

PWC-36
< COMPONENT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
DOOR KEY CYLINDER SWITCH
DescriptionINFOID:0000000003776008
Main power window and door lock/unlock switch detects condition of the door key cylinder and transmits to
BCM as the LOCK or UNLOCK signals.
Component Function CheckINFOID:0000000003776009
1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in “DAT A MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to DLK-56, "CONSULT-III Function (INTELLIGENT KEY)"
.
Is the inspection result normal?
YES >> Key cylinder switch is OK.
NO >> Refer to PWC-36, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003776010
1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/ unlock switch connector and ground.
Is the measurement value within the specification?
YES >> Replace main power window and door lock/unlock switch.
NO >> GO TO 2
2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
Monitor item Condition
KEY CYL LK-SW Lock : ON
Neutral / Unlock : OFF
KEY CYL UN-SW Unlock : ON
Neutral / Lock : OFF
Te r m i n a l s
Key positionVoltage (V)
(Approx.)
(+)
(–)
Main power window
and door lock/unlock switch connector Te r m i n a l
D7 4
Ground Lock 0
Neutral/Unlock 5
6 Unlock 0
Neutral/Lock 5
ALKIA0309ZZ
Revision: December 20092009 QX56

DOOR KEY CYLINDER SWITCHPWC-37
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front door lock assembly LH (key cylinder switch).
3. Check continuity between main power window and door lock/
unlock switch connector and front door lock assembly LH (key
cylinder switch) connector.
4. Check continuity between main power window and door lock/unlock switch connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly LH (key cylinder
switch) connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch.
Refer to PWC-37, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace front door lock assembly LH (door key cylinder switch).
Component InspectionINFOID:0000000003776011
COMPONENT INSPECTION
1. CHECK DOOR KEY CYLINDER SWITCH
Main power window
and door lock/unlock switch connector Te r m i n a lFront door lock as-
sembly LH (key cylin-
der switch) connector Terminal Continuity
D7 (A) 4
D14 (B) 1
Ye s
66
Main power window and door lock/unlock switch connector Te r m i n a l
Ground Continuity
D7 (A) 4
No
6
ALKIA1025ZZ
Front door lock assembly LH (key
cylinder switch) connector Te r m i n a l
GroundContinuity
D14 5 Yes
LIIA1572E
Revision: December 20092009 QX56