Circuit Description

The power window regulator master switch controls the driver's power window and activates the driver's power window motor. If a malfunction is found in the pulse sensor during motor operation, the fail-safe function will stop UP/DOWN operation.

If the AUTO UP/DOWN function does not operate, the cause may be one or more of the following:

• The recorded power window fully closed position, which is stored in the power window regulator master switch, was erased as a result of the battery terminal or the power window regulator master switch connector being disconnected.
• The pulse sensor in the power window regulator motor has a malfunction.
• The wiring between the power window regulator master switch and the corresponding power window regulator motor is open or short circuit.
• The power window regulator master switch has a malfunction.