Encoder And Limit Switch Check

POWER WINDOW SYSTEM


Encoder and Limit Switch Check

1.CHECK DOOR WINDOW SLIDE MECHANISM

Check the following.
- 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.