Manual Down/Up Operation

WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

The signal is input to terminal MDN of the driver door ECU while the power window master switch is kept pressed one step. See WIRING DIAGRAMS . This activates the driver door ECU to flow the current from terminal DN into the front LH power window motor to terminal UP of the driver door ECU to GROUND, to rotate the motor and open the window.

The signal is input to terminal MUP of the driver door ECU while the power window master switch is kept pulled one step. The signal is input to terminal MUP of the driver door ECU while the power window master switch is kept pulled one step. This activates the driver door ECU to flow the current from terminal UP into the front LH power window motor to terminal DN of the driver door ECU to GROUND, to reversely rotate the motor and close the window. For other windows, as the power window master switch or each power window switch is operated, the window of the relevant door is opened or closed.