ignition INFINITI QX56 2008 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2008, Model line: QX56, Model: INFINITI QX56 2008Pages: 4083, PDF Size: 81.73 MB
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PWC-22
< COMPONENT DIAGNOSIS >
POWER WINDOW MOTOR
OK or NG
OK >> Replace rear power window switch RH. Refer to PWC-117, "Removal and Installation".
NG >> GO TO 2
2. CHECK REAR POWER WINDOW SWITCH RH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch RH and rear power win- dow control unit RH.
3. Check continuity between rear power window switch RH con- nector 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
Check rear power window motor RH.
Refer to PWC-22, "
REAR RH : Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace rear power window motor RH. Refer to GW-13, "
Removal and Installation".
REAR RH : Component InspectionINFOID:0000000001735676
COMPONENT INSPECTION
1. CHECK REAR POWER WINDOW MOTOR RH
Does motor operate by connecting the battery voltage directly to rear power window motor RH?
Is the inspection result normal?
YES >> Rear power window motor RH is OK.
NO >> Replace rear power window motor RH. Refer to GW-13, "
Removal and Installation".
4 - 9
: Continuity should exist.
5 - 10 : Continuity should exist.
LIIA1379E
Te r m i n a l
Motor condition
(+) (–)
21 D OW N
12 U P
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ENCODERPWC-23
< COMPONENT DIAGNOSIS >
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ENCODER
DRIVER SIDE
DRIVER SIDE : DescriptionINFOID:0000000001735677
Detects condition of the front power window motor LH operation and transmits to main power window and door
lock/unlock switch as pulse signal.
DRIVER SIDE : Componen t Function CheckINFOID:0000000001735678
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-23, "
DRIVER SIDE : Diagnosis Procedure"
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000001735679
Encoder Circuit Check
1. CHECK ENCODER OPERATION
1. Turn ignition switch ON.
2. Check signal between main power window and door lock/unlock switch 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 LH POWER SUPPLY
Te r m i n a l s
Signal
(Reference value)
(+)
(–)
Main power window
and door lock/unlock switch connector Te r m i n a l
D7 9
Ground Refer to following signal
13
ALKIA0295ZZ
JMKIA0220GB
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PWC-24
< COMPONENT DIAGNOSIS >
ENCODER
1. Turn ignition switch ON.
2. Check voltage between front power window motor LH connectorand 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 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 (A) and front power window motor LH
connector (B).
4. Check continuity between main power window and door lock/unlock switch connector (A) and ground.
Is the inspection result normal?
YES >> Replace main power window and door lock/unlock switch. Refer to PWC-115, "Removal and
Installation".
NO >> Repair or replace harness.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH.
3. Check continuity between front power window motor LH connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> GO TO 5
5. CHECK HARNESS CONTINUITY 2
Te r m i n a l Voltage (V)(Approx.)
(+)
(–)
Front power win-
dow motor LH con- nector Te r m i n a l
D9 4Ground 10
WIIA0513E
Main power window
and door lock/unlock switch connector Te r m i n a l
Front power window
motor LH connector Terminal Continuity
D7 (A) 15 D9 (B) 4 Yes
Main power window and door lock/unlock switch connector Te r m i n a l
Ground Continuity
D7 (A) 15 No
ALKIA1021ZZ
Front power window motor
LH connector Terminal
Ground Continuity
D9 6 Yes
LIIA0923E
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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 (A) and front power window motor RH con-
nector (B).
4. Check continuity between power window and door lock/unlock switch RH connector (A) 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 4Ground 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) 4D104 (B) 4 Yes
ALKIA1023ZZ
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ENCODERPWC-27
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Is the inspection result normal?
YES >> Replace power window and door lock/unlock switch RH. Refer to PWC-116, "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-116, "
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 (A) and front power window motor RH con-
nector (B).
3. Check continuity between power window and door lock/unlock switch RH connector (A) 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 3D104 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
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PWC-28
< COMPONENT DIAGNOSIS >
ENCODER
Is the inspection result normal?
YES >> Replace front power window motor RH. Refer to GW-9, "Removal and Installation".
NO >> Repair or replace harness.
REAR LH
REAR LH : DescriptionINFOID:0000000001806212
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 : Componen t Function CheckINFOID:0000000001806213
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:0000000001806214
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.
OK or NG
OK >> GO TO 2
NG >> 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
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ENCODERPWC-29
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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.
OK or NG
OK >> GO TO 3
NG >> 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.
OK or NG
OK >> GO TO 5
NG >> 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.
OK or NG
OK >> Replace rear power window switch LH. Refer to PWC-
117, "Removal and Installation".
NG >> 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.
OK or NG
OK >> GO TO 7
NG >> 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
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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.
OK or NG
OK >> Replace rear power window control unit LH.
NG >> 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.
OK or NG
OK >> Limit switch circuit is OK.
NG >> 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.
OK or NG
OK >> GO TO 9
NG >> 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.
OK or NG
OK >> Replace rear power window motor LH. Refer to GW-13,
"Removal and Installation".
NG >> Repair or replace harness.
REAR RH
6 - 3 : Continuity should exist.
LIIA1383E
ConnectorTe 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-close
d 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
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ENCODERPWC-31
< COMPONENT DIAGNOSIS >
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REAR RH : DescriptionINFOID:0000000001806215
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 : Component Function CheckINFOID:0000000001806217
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:0000000001806218
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.
OK or NG
OK >> GO TO 2
NG >> 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.
OK or NG
OK >> GO TO 3
NG >> 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
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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.
OK or NG
OK >> GO TO 5
NG >> 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.
OK or NG
OK >> Replace rear power window switch RH. Refer to PWC-
117, "Removal and Installation".
NG >> 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.
OK or NG
OK >> GO TO 7
NG >> 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.
OK or NG
OK >> Replace rear power window control unit RH.
NG >> 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: March 2010 2008 QX56