Auto Down Or Up Operation

WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

When the power window master switch (driver's) in the driver door ECU is pushed 2 steps, the ECU determines it is in auto mode and the current flows from terminal No. 15 (DN) of the driver door ECU to terminal No. 2 of the front LH power window motor to terminal No. 1 (UP) of the driver door ECU to terminal No. 25 (GND) to GROUND, and rotates the motor to open the window automatically.

Accordingly, when each window switch of the front power window master switch is pressed, the relevant door window is automatically opened through communication control of the body ECU and door ECU.

When the power window master switch (driver's) in the driver door ECU is pulled 2 steps, the ECU determines it is in auto mode and the current flows from terminal No. 1 (UP) of the driver door ECU to terminal No. 1 of the front LH power window motor to terminal No. 2 to terminal No. 15 (DN) of the driver door ECU to terminal No. 25 (GND) to GROUND, and rotates the motor to close the window automatically.

Accordingly, when each window switch of the front power window master switch is pulled, the relevant door window is automatically closed through communication control of the body ECU and door ECU. Furthermore, and the power window control switch of each door is operated, the window will open/close automatically.