Encoder and Limit Switch Check (Passenger side with left and right front power window anti-pinch system)

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

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
1. OK: GO TO 2.
2. NG: Remove obstacles or repair door window slide mechanism.
CHECK LIMIT SWITCH OPERATION
Check voltage between front power window switch RH connector D105 terminal 16 (G/W) and ground.

Fig 1: Checking Limit Switch Operation (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Limit Switch Operation (2 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 3.
2. NG: Check harness between main power window and door lock/unlock switch and front power window motor RH.
  - OK: Replace power window regulator motor (front passenger side).
  - NG: Replace or repair harness between power window main switch and window regulator motor (front passenger side).
CHECK ENCODER
Measure voltage between passenger power window switch terminal 19 (G/Y) and ground with oscilloscope when power window is in automatic closing operation.

Fig 3: Checking Encoder (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Encoder (2 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Replace passenger power window switch.
2. NG: Replace power window regulator motor (front passenger side).