2011 INFINITI QX56 Factory Service Manual

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Page 4129 of 5598

INFINITI QX56 2011 Factory Service Manual
PWC-44
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK ENCORDER POWER SUPPLY
1. Connect power window main switch connector

Page 4130 of 5598

INFINITI QX56 2011 Factory Service Manual
ENCODERPWC-45
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
2. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness con

Page 4131 of 5598

INFINITI QX56 2011 Factory Service Manual
PWC-46
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
2. Disconnect front power window switch (passenger side) connector and front power window motor (pas-
senger side) connector.
3. Check continuity between fron

PWC-46
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
2. Disconnect front power window switch (passenger side) connector and front power window motor (pas-
senger side) connector.
3. Check continuity between front power window swit ch (passenger side) harness connector and front power
window motor (passenger side) harness connector.
4. Check continuity between front power window switch (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK ENCORDER POWER SUPPLY
1. Connect front power window switch (passenger side) connector.
2. Turn ignition switch ON.
3. Check voltage between front power window motor (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK ENCORDER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Check continuity between front power window swit ch (passenger side) harness connector and front power
window motor (passenger side) harness connector.
4. Check continuity between front power window switch (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window switch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> Repair or replace harness.
5.CHECK GROUND CIRCUIT 1
1. Turn ignition switch OFF.
Front power window switch (passenger side) Front power window motor (passenger side) Continuity
Connector Terminal Connector Terminal
D25 12
D27 5
Existed
15 6
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 12
Not existed
15
(+)
(–)Voltage (V)
(Approx.)
Front power window motor (passenger side)
Connector Terminal D27 2 Ground 12
Front power window switch (passenger side) Front power window motor (passenger side) Continuity
Connector Terminal Connector Terminal
D25 4 D27 2 Existed
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 4 Not existed
Revision: 2010 May2011 QX56

Page 4132 of 5598

INFINITI QX56 2011 Factory Service Manual
ENCODERPWC-47
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
2. Check continuity between front power window motor (passenger side) harness connector and ground.
Is the inspection result n

Page 4133 of 5598

INFINITI QX56 2011 Factory Service Manual
PWC-48
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
Is the inspection result normal?
YES >> Replace rear power window switch LH. Refer to PWC-74, "Removal and Installation".
NO >> GO TO 2.
2.CHECK ENCORDER SIGN

Page 4134 of 5598

INFINITI QX56 2011 Factory Service Manual
ENCODERPWC-49
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
4. Check continuity between rear power window switch LH harness connector and ground.
Is the inspection result normal?
YES >>

Page 4135 of 5598

INFINITI QX56 2011 Factory Service Manual
PWC-50
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
REAR RH : Diagnosis Procedure
INFOID:0000000006217308
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between rear power window switch RH h

Page 4136 of 5598

INFINITI QX56 2011 Factory Service Manual
ENCODERPWC-51
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK ENCORDER POWER SUPPLY CIRCUIT
1. Turn ignition switch

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