Encoder And Limit Switch Check

POWER WINDOW SYSTEM

Encoder and Limit Switch Check


1. CHECK DOOR WINDOW SLIDE MECHANISM

- Obstacles in window, glass molding, etc.
- Worn or deformed glass molding.
- Door sash tilted too far inward or outward.
- Door window regulator.
OK or NG
OK- GO TO 2.
NG- Remove obstacles or repair door window slide mechanism.

2. CHECK LIMIT SWITCH OPERATION

1.Turn ignition switch ON.
2.Check voltage between main power window and door lock/unlock switch connector D5 terminal 9 and ground.










OK or NG
OK- GO TO 3.
NG-Check harness between main power window and door lock/unlock switch and front power window motor LH.
- OK: Replace front power window motor LH.
- NG: Replace or repair harness.

3. CHECK ENCODER

Measure voltage between main power window and door lock/unlock switch connector D5 terminal 13 and ground with oscilloscope when power window is in automatic closing operation.










OK or NG
OK- Replace main power window and door lock/unlock switch.
NG- Replace front power window motor LH.