Infiniti QX56 (JA60). Manual — part 754
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 : Description
INFOID:0000000005147203
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 Check
INFOID:0000000005147204
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 Procedure
INFOID:0000000005147205
Regarding Wiring Diagram information, refer to
.
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
Terminal
Ground
Continuity
D105 (A)
12
No
15
Connec-
tor
Terminals
Condition
Signal
(+)
(-)
D209
4
Ground
Opening
LIIA2368E
OCC3383D
ENCODER
PWC-29
< COMPONENT DIAGNOSIS >
C
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PWC
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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
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
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 MOTOR 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
.
NO
>> Repair or replace harness.
REAR RH
6 - 3
: Continuity should exist.
LIIA1383E
Connector
Terminals
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
ENCODER
PWC-31
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
REAR RH : Description
INFOID:0000000005147206
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 Check
INFOID:0000000005147207
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 Procedure
INFOID:0000000005147208
Regarding Wiring Diagram information, refer to
.
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
Terminals
Condition
Signal
(+)
(-)
D309
4
Ground
Opening
LIIA2368E
OCC3383D
4 - 3
: Continuity should exist.
LIIA1389E
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