System Outline

Current always flows to TERMINAL 3 of the power main relay through the POWER fuse. With the ignition SW turned ON, current flows through the GAUGE fuse to TERMINAL 2 of the power main relay --> TERMINAL 1 --> GROUND. This activates the relay and current flowing to TERMINAL 5of the power main relay --> TERMINAL 9 of the power window master SW and TERMINAL 5 of the power window SW Rh (passenger's).

1. MANUAL OPERATION (DRIVER'S WINDOW)
With the ignition SW turned ON and the power window master SW at up position, the current flowing to TERMINAL 9 of the power window master SW flows to TERMINAL 3 of the master SW --> TERMINAL 2 of the power window motor LH (driver's) --> motor --> TERMINAL 1 --> TERMINAL 4 of the master SW --> TERMINAL 6 --> GROUND, and causes the power window motor to rotate in the upward direction. The window ascends only while the SW is being pulled. For down operation, the flow of current from TERMINAL 9 of the power window master SW to TERMINAL 4 of the master SW causes the flow of current from TERMINAL 1 of the motor -->motor --> TERMINAL 2 --> TERMINAL 3 of the master SW --> TERMINAL 6 --> GROUND, flowing in the opposite direction to manual up operation and causing the motor to rotate in reverse, lowering the window.

2. AUTO DOWN OPERATION
With the ignition SW ON and with the driver's SW of the power window master SW in down position, current flowing to TERMINAL 9of the master SW flows to TERMINAL 4 of the master SW --> TERMINAL 1 of the power window motor --> motor --> TERMINAL 2 --> TERMINAL 3 of the master SW --> TERMINAL 6 --> GROUND, causing the motor to rotate in the downward direction. Then the solenoid in the master SW is activated and it locks the driver's SW at the down position, causing the motor to continue to rotate in auto down operation.
When the window has completely descended, the current flow between TERMINAL 3 of the master SW and TERMINAL 6 increases. As a result, the solenoid stops operating, the driver's SW turns OFF and flow from TERMINAL 9 of the master SW to TERMINAL 4 is cut OFF, stopping the motor so that auto stop occurs.

3. STOPPING OF AUTO DOWN AT DRIVER'S WINDOW
When the driver's SW is pulled to the up position during auto down operation, a ground circuit opens in the master SW and current does not flow from TERMINAL 3 of the master SW --> TERMINAL 6, so the motor stops. causing auto down operation to stop. If the driver's SW is pushed continuously, the motor rotates in the upward direction in manual up operation.

4. MANUAL OPERATION BY POWER WINDOW SW (PASSENGER'S WINDOW)
With power window SW (passenger's) pulled to the up position, current flowing from TERMINAL 5 of the power window SW flows to TERMINAL 1 of the power window SW --> TERMINAL 2 of the window motor --> motor --> TERMINAL 1 --> TERMINAL 4 of the power window SW --> TERMINAL 3 --> TERMINAL 7 of the master SW --> TERMINAL 6 --> GROUND, and causes the power window motor (passenger's) to rotate in the upward direction. Up operation continues only while the power window SW is pulled to the up position. When the window descends, the current to the motor flows in the opposite direction, from TERMINAL 1 --> motor --> TERMINAL 2, and the motor rotates in reverse. When the window lock SW is pushed to the lock position, the ground circuit to the passenger's window becomes open.
As a result, even if up/down operation of the passenger's window is tried, the current from TERMINAL 9 of the power window master SW is not grounded and the motor does not rotate, so the passenger's window can not be operated and window lock occurs.

5. KEY OFF POWER WINDOW OPERATION
With the ignition SW turned from ON to OFF, the door lock ECU operates and current flows from the door fuse TERMINAL 8 of the door lock ECU --> TERMINAL 15 --> TERMINAL 2 of the power main relay --> TERMINAL 1 --> to GROUND for about 60 seconds. The same as normal operation, the current flows from the power fuse --> TERMINAL 3 of the power main relay --> TERMINAL 5 --> TERMINAL 9 of the power window master SW and TERMINAL 5 of power window SW Rh (passenger's). As a result, for about 60 seconds after the ignition SW is turned OFF the functioning of this relay makes it possible to raise and lower the power windows. Also, by opening the door (door courtesy SW ON) within about 60 seconds after turning the ignition SW OFF, a signal is input to TERMINAL 2 of the door lock ECU. As a result, the ECU turns OFF, and up and down movement of the windows stops.