Toyota 1993 MR2 Wiring Diagrams page 106

SYSTEM OUTLINE
CURRENT ALWAYS FLOWS TO TERMINAL 2 OF THE POWER MAIN RELAY THROUGH THE POWER FUSE. WITH THE IGNITION SW
TURNED ON, CURRENT FLOWS THROUGH THE GAUGE FUSE TO TERMINAL 3 OF THE POWER MAIN RELAY
GROUND. THIS ACTIVATES THE RELAY AND CURRENT FLOWING TO TERMINAL 4 OF THE POWER MAIN RELAY
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 IN UP POSITION, THE CURRENT FLOWING TO
TERMINAL 9 OF THE POWER WINDOW MASTER SW FLOWS TO TERMINAL 3 OF THE MASTER SW
WINDOW MOTOR LH (DRIVER'S)
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 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
TERMINAL 3 OF THE MASTER SW
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 9 OF THE MASTER SW FLOWS TO TERMINAL 4 OF THE MASTER SW
WINDOW MOTOR MOTOR
TO ROTATE TOWARDS THE DOWN SIDE. THEN THE SOLENOID IN THE MASTER SW IS ACTIVATED AND IT LOCKS THE DRIVER'S 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 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 SIDE DURING AUTO DOWN OPERATION, A GROUND CIRCUIT OPENS IN THE
MASTER SW AND CURRENT DOES NOT FLOW FROM TERMINAL 3 OF THE MASTER SW
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 SIDE, CURRENT FLOWING FROM TERMINAL 5 OF THE POWER
WINDOW SW FLOWS TO TERMINAL 1 OF THE POWER WINDOW SW
TERMINAL 1 TERMINAL 4 OF THE POWER WINDOW SW
GROUND, AND CAUSES THE POWER WINDOW MOTOR (PASSENGER'S) TO ROTATE IN THE UP DIRECTION. UP OPERATION
CONTINUES ONLY WHILE THE POWER WINDOW SW IS PULLED TO THE UP SIDE. WHEN THE WINDOW DESCENDS, THE CURRENT
FLOWING TO THE MOTOR FLOWS IN THE OPPOSITE DIRECTION, FLOM TERMINAL 1
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 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 POWER FUSE
TERMINAL 8 OF THE DOOR LOCK ECU
GROUND FOR ABOUT 60 SECONDS. THE SAME AS NORMAL OPERATION, THE CURRENT FLOWS FROM POWER FUSE
2 OF THE POWER MAIN RELAY
WINDOW SW RH (PASSENGER'S). 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 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 2 OF THE DOOR
LOCK ECU. AS A RESULT, THE ECU TURNS OFF AND UP AND DOWN MOVEMENT OF THE WINDOW STOPS.
MOTOR TERMINAL 1
TERMINAL 6 GROUND, FLOWING IN THE OPPOSITE DIRECTION TO MANUAL UP OPERATION
TERMINAL 2 TERMINAL 3 OF THE MASTER SW
TERMINAL 15
TERMINAL 4 TERMINAL 9 OF THE POWER WINDOW MASTER SW AND TERMINAL 5 OF POWER
TERMINAL 4 OF THE MASTER SW
TERMINAL 6
TO TERMINAL 6, SO THE MOTOR STOPS,
TERMINAL 2 OF THE WINDOW MOTOR
TERMINAL 3 TERMINAL 7 OF THE MASTER SW
MOTOR
TERMINAL 3 OF THE POWER MAIN RELAY
TERMINAL 1
TERMINAL 9 OF
TERMINAL 2 OF THE POWER
TERMINAL 6 GROUND, AND
MOTOR TERMINAL 2
TERMINAL 1 OF THE POWER
GROUND, CAUSING THE MOTOR
MOTOR
TERMINAL 6
TERMINAL 2, AND THE MOTOR
TERMINAL 1
TERMINAL
TO
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