Operation CHARM: Car repair manuals for everyone.
Home >> Toyota Truck >> 1996 >> 4 Runner 2WD L4-2.7L (3RZ-FE) >> Repair and Diagnosis >> Windows and Glass >> Windows >> Description and Operation >> Power Window

Power Window

With the Ignition SW turned ON, current flows through the Gauge fuse to TERMINAL 6 of the integration relay. This activates the relay and at all times the current flowing to TERMINAL 11 of the relay from Power fuse and flows to TERMINAL 2 of the power relay --> TERMINAL 1 --> TERMINAL 8 of the Power Window master SW and TERMINAL 5 (Front RH, Rear LH, Rear RH) of the Power Window control SW.

1. MANUAL UP OPERATION (DRIVER'S WINDOW)
With the Ignition SW turned ON and with the Power Window master SW (Manual SW) in Up position, the current flowing to TERMINAL 8of the Power Window master SW flows to TERMINAL 6 --> TERMINAL 2 of the Power Window motor front LH --> TERMINAL 1 --> TERMINAL 13 of the master SW --> TERMINAL 2 --> Ground and causes the Power Window motor to rotate in the up direction. The Window ascends only while the SW is being pushed. In down operation, the flow of current from TERMINAL 8 of the Power Window master SW --> TERMINAL 13 --> TERMINAL 1 of the Power Window motor front LH --> TERMINAL 2 --> TERMINAL 6of the master SW --> TERMINAL 2 --> 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 auto SW OFF the Power Window master SW in Down position, current flowing to TERMINAL 8 of the Power Window master SW --> TERMINAL 13 --> TERMINAL 1 of the Power Window motor front LH --> TERMINAL 2 --> TERMINAL 6 of the master SW --> TERMINAL 2 --> Ground, causing the motor to rotate towards the down side. Then the solenoid in the master SW is activated and it locks the auto SW being pushed, causing the motor to continue to rotate in auto down operation. When the Window has completely descended, the current flow between TERMINAL 6 of the master SW and TERMINAL 2increases. As a result, the solenoid stops operating, the auto SW turns OFF and flow from TERMINAL 8 of the master SW to TERMINAL 13 is cut OFF, stopping the motor so that auto stop occurs.

3. STOPPING OF AUTO DOWN AT DRIVER'S WINDOW
When the manual SW (Driver's) is pulled to the up side during auto down operation a ground circuit opens in the master SW and current does not flow from TERMINAL 6 of the master SW --> TERMINAL 2 so the motor stops, causing auto down operation to stop. If the manual SW is pulled continuously, the motor rotates in the up direction in manual up operation.

4. MANUAL OPERATION BY POWER WINDOW CONTROL SW (FRONT RH)
With Power Window control SW (Front RH) pulled to the up side, current flowing from TERMINAL 5 of the Power Window control SW --> TERMINAL 1 --> TERMINAL 1 of the Power Window motor --> TERMINAL 2 --> TERMINAL 4 of the Power Window control SW --> TERMINAL 3 --> TERMINAL 5 of the master SW --> TERMINAL 2 --> Ground and causes the Power Window Motor (Front RH) to rotate in the operating only while the Power Window control SW is pulled to the up side. When the Window descends. The current flowing to the motor flows in the opposite direction. From TERMINAL 1 to TERMINAL 2, and the motor rotates in reverse. When the Window lock SW is pushed to the lock side, the ground circuit to the passenger's Window becomes open as a result. Even if Open/Close operation of the passenger's Window is tried. The current from TERMINAL 2 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 integration relay operates and current flows from TERMINAL 11 --> TERMINAL B-1 --> TERMINAL 4 of the power relay --> TERMINAL 3 --> Ground for about 60 Seconds. The same as normal operation, the current flows from TERMINAL 2 of the power relay --> TERMINAL 1 --> TERMINAL 8 of the Power Window master SW and TERMINAL 5 (Front RH, Rear LH, Rear RH) of the Power Window control SW. As a result. For about 60 Seconds after the Ignition SW is turned OFF, it is possible to raise and lower the Power Window by the functioning of this relay. Also, by opening the Door (Door Courtesy SW ON) within about 60 Seconds after turning the Ignition SW to OFF, a signal is input to TERMINAL A-5 of Door control relay. As a result, the relay turns OFF and up and down movement of the Window stops.
Furthermore, Rear LH, RH Window operate the same as the above circuit.
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