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.