Power Window System: Precautions

Precautions for Power window system
CAUTION:
- Power window system uses large-scale multiplex communication for vehicle body [LIN]. At first, follow the "How to proceed the troubleshooting" and perform the "Communication function checking" to check that malfunction does not occur in the communication system, and then proceed to the troubleshooting.
- When malfunction occurs in the auto-reverse function of the power window system, disable the AUTO operation. Otherwise, accidental pinching may arise. Check that the diagnostic code is not output, then proceed to the troubleshooting.
- When replacing the power window regulator motor assembly with a new one or reusing its motor, perform the initialization of the power window system. (Refer to REGISTRATION SETTINGS )
- After replacing door glass and/or weather strip, AUTO UP operation sometimes activates auto-reverse function. In this case, the door glass is fully closed by performing the procedure in the following order (*3). AUTO UP HOLD →(the auto-reverse function (glass reverse operation)) →(*1) →AUTO UP HOLD →(the auto-reverse function (glass reverse operation)) →AUTO UP HOLD (*2).
  *1: If DOWN operation, IG OFF & timer operation OFF, and/or index operation is executed between auto-reverse function and AUTO UP HOLD, return to the beginning of the procedure.
  
  *2: The upper end position of the glass is relearned by this operation (AUTO UP HOLD). (Refer to REGISTRATION SETTINGS )
  
  *3: The failure of the door glass or regulator may prevent full closing of the door glass.
- Even if the power window system is normal, unexpected operation of the auto-reverse function may occur resulting from the abrupt change of the opening/closing speed of the window. This symptom occurs when the system detects any value out of the learned operation.
  1. Window opening/closing operation while driving the vehicle on rough roads.
  2. Window opened/closed operation when door is opened/closed.
  3. Sudden voltage variation occurs.
- Never disconnect the battery with IG ON. If the battery is disconnected while IG ON, DTC may not be output properly.