Diagnosis Procedure
- CHECK ENCODER SIGNAL
- Ignition switch ON.
- Check signal between rear power window switch RH harness connector and ground with oscilloscope.
Signal name
(+)
(-)
Signal
(Reference value)
Rear power window switch RH
Connector
Terminal
Encoder signal 1
D304
12
Ground
Refer to following signal
Encoder signal 2
15
Is the inspection result normal?
YES
Replace rear power window switch RH. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK ENCODER SIGNAL CIRCUIT
- Ignition switch OFF.
- Disconnect rear power window switch RH connector and rear power window motor RH connector.
- Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.
Rear power window switch RH
Rear power window motor RH
Continuity
Connector
Terminal
Connector
Terminal
D304
12
D305
4
Yes
15
6
- Check continuity rear power window switch RH harness connector and ground.
Rear power window switch RH
Ground
Continuity
Connector
Terminal
D304
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 RH connector.
- Ignition switch ON.
- Check voltage between rear power window motor RH harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Rear power window motor RH
Connector
Terminal
D305
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 RH connector.
- Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.
Rear power window switch RH
Rear power window motor RH
Continuity
Connector
Terminal
Connector
Terminal
D304
4
D305
5
Yes
- Check continuity between rear power window switch RH harness connector and ground.
Rear power window switch RH
Ground
Continuity
Connector
Terminal
D304
4
No
Is the inspection result normal?
YES
Replace rear power window switch RH. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK GROUND CIRCUIT 1
- Ignition switch OFF.
- Check continuity between rear power window motor RH harness connector and ground.
Rear power window motor RH
Ground
Continuity
Connector
Terminal
D305
3
Yes
Is the inspection result normal?
YES
Replace rear power window motor RH. Refer to Removal and Installation .
NO
GO TO 6.
- CHECK GROUND CIRCUIT 2
- Disconnect rear power window switch RH harness connector.
- Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.
Rear power window switch RH
Rear power window motor RH
Continuity
Connector
Terminal
Connector
Terminal
D304
3
D305
3
Yes
- Check continuity between rear power window switch RH harness connector and ground.
Rear power window switch RH
Ground
Continuity
Connector
Terminal
D304
3
No
Is the inspection result normal?
YES
Replace rear power window switch RH. Refer to Removal and Installation .
NO
Repair or replace harness.