Windows: Description and Operation

SYSTEM OUTLINE

1. MANUAL DOWN OR UP OPERATION
The signal is input to TERMINAL MDN of the driver door ECU while the power window master SW is kept pressed one step. This activates the driver door ECU to flow the current from TERMINAL DN into the power window motor front LH 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 SW is kept pulled one step. This activates the driver door ECU to flow the current from TERMINAL UP into the power window motor front LH to TERMINAL ON of the driver door ECU to GROUND, to reversely rotate the motor and close the window. For other windows, as the power window master SW or each power window SW is operated, the window of the relevant door is opened or closed.

2. AUTO DOWN OR UP OPERATION
The signals are input to TERMINALS MDN and AUTO of the driver door ECU when the power window master SW is pressed two steps. According to these signals, it is determined that the driver door ECU is in the auto mode. The current flows from TERMINAL DN into the power window motor front LH to TERMINAL UP of the driver door ECU to GROUND, to rotate the motor and automatically open the window. Accordingly, when each window switch of the power window master SW is pressed, the window of the relevant door is automatically opened through communication control of the body ECU and door ECU etc.

The signals are input to TERMINALS MUP and AUTO of the driver door ECU when the power window master SW is pulled two steps. According to these signals, it is determined that the driver door ECU is in the auto mode. The current flows from TERMINAL UP into the power window motor front LH to TERMINAL DN of the driver door ECU to GROUND, to rotate the motor and automatically close the window. Accordingly, when each window switch of the power window master SW is pressed, the window of the relevant door is automatically closed through communication control of the body ECU and door ECU etc.

For other windows, as each power window control SW is operated, the window of the relevant door is automatically opened or closed.

3. POWER WINDOW OPERATION LINKED WITH DOOR KEY LOCK AND UNLOCK SW
When the ignition key is inserted into the door key cylinder on the driver or passenger side and kept turned to the lock or unlock position for approximately 1.5 sec. 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 kept turned to the lock position for 1.5 sec. or longer, the signal from the door key lock and unlock SW is input to TERMINAL KL of the driver door ECU or front passenger door ECU. Through communication control of the body ECU and door ECU etc., the current flows from TERMINAL UP of each door ECU into the power window motor to TERMINAL ON of the each door ECU to GROUND, to close all the door windows.

Power window open operation
When the ignition key is inserted into the door key cylinder and kept turned to the unlock position for 1.5 sec. or longer, the signal from the door key lock and unlock SW is input to TERMINAL KUL of the driver door ECU or front passenger door ECU. Through communication control of the body ECU and door ECU etc., the current flows from TERMINAL ON of each door ECU into the power window motor to TERMINAL UP of the each door ECU to GROUND, to close all the door windows. If any of the following conditions is detected, the power window operation is stopped.

Approximately 10 sec. or longer has elapsed after starting open/close operation. Catching prevention function is activated.

4. POWER WINDOW OPERATION LINKED WITH TRANSMITTER
When the unlock SW on the transmitter of the ignition key is kept pressed for 2.5 sec. or longer, all the door windows can be opened.

Power window open operation
When the unlock SW of the ignition key is kept pressed for 2.5 sec. or longer, the frequency received from the wireless door lock control ECU is input to the body ECU No.1. Through communication control of the body ECU and door ECU etc. ,the current flows from TERMINAL ON of each door ECU into the power window motor to TERMINAL UP of the each door ECU to GROUND, to open all the door windows.

If any of the following conditions is detected, the power window operation is stopped. Approximately 10 sec. or longer have elapsed after starting open operation.

The lock or unlock switch on the transmitter is released.
Catching prevention function is activated.

5. CATCHING PREVENTION FUNCTION
If any foreign matter is caught in the window while it is rising, the pulse sensor installed in the power window motor detects changes in the number of motor rotations, forcibly lowers the door window 50 mm or if the door window opening amount is 200 mm or less, the window is lowered so that the opening amount is 200 mm.

6. KEY OFF POWER WINDOW OPERATION
It is possible to operate the power window for 45 sec. after the ignition key is turned from ON to OFF and the driver or front passenger door is opened. However, when the door is closed while the window is being operated, the power window operation is stopped even though 45 sec. has not elapsed.