Power Window Operation Linked With Door Key Lock & Unlock Switch
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 ignition key is inserted into the door key cylinder on the driver side, and is kept turned to LOCK or UNLOCK position for approximately 2.5 seconds or longer, all the door windows can be opened or closed.
- Power Window Close Operation - When the ignition key is inserted into the door key cylinder and is kept turned to the LOCK position for 2.5 seconds or longer, the signal from the door key lock and unlock switch is input to the driver door ECU terminal No. 6 (KL). Through communication control of the body ECU and door ECU, the current flows from terminal No. 1 (UP) of each door ECU to power window motor to terminal No. 15 (DN) of each door ECU to terminal No. 25 (GND) to GROUND, to close all the door windows.
- Power Window Open Operation - When the ignition key is inserted into the door key cylinder and is kept turned to the UNLOCK position for 2.5 seconds or longer, the signal from the door key lock and unlock switch is input to the driver door ECU terminal No. 19 (KUL). Through communication control of the body ECU and door ECU, the current flows from terminal No. 15 (DN) of each door ECU to power window motor to terminal No. 1 (UP) of each door ECU to terminal No. 25 (GND) to GROUND, to open all the door windows.