Diagnosis Procedure
- CHECK ENCODER SIGNAL
- Ignition switch ON.
- Check signal between rear power window switch LH harness connector and ground with oscilloscope.
Signal name
(+)
(-)
Signal
(Reference value)
Rear power window switch LH
Connector
Terminal
Encoder signal 1
D204
12
Ground
Refer to following signal
Encoder signal 2
15
Is the inspection result normal?
YES
Replace rear power window switch LH. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK ENCODER SIGNAL CIRCUIT
- Ignition switch OFF.
- Disconnect rear power window switch LH connector and rear power window motor LH connector.
- Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
Rear power window switch LH
Rear power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D204
12
D205
4
Yes
15
6
- Check continuity rear power window switch LH harness connector and ground.
Rear power window switch LH
Ground
Continuity
Connector
Terminal
D204
12
No
15
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness.
- CHECK ENCODER POWER SUPPLY
- Connect rear power window switch LH connector.
- Ignition switch ON.
- Check voltage between rear power window motor LH harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Rear power window motor LH
Connector
Terminal
D205
5
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK ENCODER POWER SUPPLY CIRCUIT
- Ignition switch OFF.
- Disconnect rear power window switch LH connector.
- Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
Rear power window switch LH
Rear power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D204
4
D205
5
Yes
- Check continuity between rear power window switch LH harness connector and ground.
Rear power window switch LH
Ground
Continuity
Connector
Terminal
D204
4
No
Is the inspection result normal?
YES
Replace rear power window switch LH. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK GROUND CIRCUIT 1
- Ignition switch OFF.
- Check continuity between rear power window motor LH harness connector and ground.
Rear power window motor LH
Ground
Continuity
Connector
Terminal
D205
3
Yes
Is the inspection result normal?
YES
Replace rear power window motor LH. Refer to Removal and Installation .
NO
GO TO 6.
- CHECK GROUND CIRCUIT 2
- Disconnect rear power window switch LH harness connector.
- Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
Rear power window switch LH
Rear power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D204
3
D205
3
Yes
- Check continuity between rear power window switch LH harness connector and ground.
Rear power window switch LH
Ground
Continuity
Connector
Terminal
D204
3
No
Is the inspection result normal?
YES
Replace rear power window switch LH. Refer to Removal and Installation .
NO
Repair or replace harness.