Encoder Circuit Check
- CHECK ENCODER OPERATION
- Turn ignition switch ON.
- Check signal between main power window and door lock/unlock switch harness connector and ground with oscilloscope.
(+)
(-)
Signal
(Reference value)
Main power window and door lock/unlock switch
Connector
Terminal
D6
4
Ground
Refer to following signal
5
Is the inspection result normal?
YES
GO TO 7 .
NO
GO TO 2 .
- CHECK ENCORDER SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect main power window and door lock/unlock switch connector and front power window motor LH connector.
- Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.
Main power window and door lock/unlock switch
Front power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D6
4
D10
4
Yes
5
5
- Check continuity between main power window and door lock/unlock switch harness connector and ground.
Main power window and door lock/unlock switch
Ground
Continuity
Connector
Terminal
D6
4
No
5
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair or replace harness.
- CHECK ENCORDER POWER SUPPLY CIRCUIT
- Connect main power window and door lock/unlock switch connector.
- Turn ignition switch ON.
- Check voltage between front power window motor LH harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Front power window motor LH
Connector
Terminal
D10
2
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 4 .
NO
GO TO 5 .
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Check continuity between front power window motor LH harness connector and ground.
Front power window motor LH
Ground
Continuity
Connector
Terminal
D10
6
Yes
Is the inspection result normal?
YES
GO TO 7 .
NO
GO TO 6 .
- CHECK HARNESS CONTINUITY 1
- Turn ignition switch OFF.
- Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.
Main power window and door lock/unlock switch
Front power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D6
14
D10
2
Yes
- Check continuity between main power window and door lock/unlock switch harness connector and ground.
Main power window and door lock/unlock switch
Ground
Continuity
Connector
Terminal
D6
14
No
Is the inspection result normal?
YES
Replace main power window and door lock/unlock switch. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK HARNESS CONTINUITY 2
- Disconnect main power window and door lock/unlock switch connector.
- Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.
Main power window and door lock/unlock switch
Front power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D6
12
D10
6
Yes
Is the inspection result normal?
YES
Replace main power window and door lock/unlock switch. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .
Inspection End.