System Outline; Service Hints; Parts Location; Ground Points - Toyota 1993 MR2 Wiring Diagrams

HOW TO USE THIS MANUAL
Q

SYSTEM OUTLINE

WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 3 OF THE POWER WINDOW MASTER SW, TERMINAL 2 OF THE POWER WINDOW CONTROL RELAY
AND TERMINAL 8 OF THE POWER WINDOW SW THROUGH THE DOOR FUSE.
1.
DRIVER'S WINDOW "MANUAL UP" OPERATION BY MASTER SW
HOLDING MANUAL SW (DRIVER'S) ON "UP" POSITION LOCATED IN POWER WINDOW MASTER SW, THE CURRENT FLOWS TO TERMINAL 5 OF THE POWER WINDOW
CONTROL RELAY THROUGH TERMINAL 3 OF THE MASTER SW Õ TERMINAL 2 TO OPERATE A POWER WINDOW CONTROL RELAY. THUS THE CURRENT INSIDE THE RELAY
FLOWS FROM TERMINAL 2 OF THE RELAY Õ TERMINAL 1 Õ TERMINAL 2 OF THE POWER WINDOW MOTOR Õ TERMINAL 1 Õ TERMINAL 4 OF THE RELAY Õ TERMINAL
3 Õ TO GROUND. THE MOTOR TURNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS STOPPED AND THE WINDOWS CAN STOP AT WILL
POINT.
(FOR THE "MANUAL DOWN" OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).
2.
DRIVER'S WINDOW "AUTO DOWN" OPERATION BY MASTER SW
ONCE THE "AUTO DOWN" BUTTON OF THE MASTER SW IS PUSHED, THE CURRENT FLOWS TERMINAL 9 OF THE POWER WINDOW CONTROL RELAY THROUGH TERMINAL
3 OF THE MASTER SW Õ TERMINALS 8 AND 9 TO OPERATE THE RELAY. THUS THE CURRENT INSIDE THE POWER WINDOW CONTROL RELAY FLOWS FROM TERMINAL
2 OF THE RELAY Õ TERMINAL 4 Õ TERMINAL 1 OF THE POWER WINDOW MOTOR Õ TERMINAL 2 Õ TERMINAL 1 OF THE RELAY Õ TERMINAL 3 Õ TO GROUND.
THE MOTOR CONTINUES THE ROTATION ENABLING TO DESCENT THE WINDOW.
THE WINDOW DESCENDS TO THE END POSITION. THE CURRENT WILL BE CUT OFF TO RELEASE THE AUTO DOWN FUNCTION BASED ON THE INCREASING CURRENT
BETWEEN TERMINAL 2 OF THE RELAY AND TERMINAL 1 IN RELAY.
3.
DRIVER'S WINDOW AUTO DOWN RELEASE OPERATION BY MASTER SW
HOLDING THE MANUAL SW (DRIVER'S) ON "UP" POSITION IN OPERATING AUTO DOWN. THE CURRENT FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 2
FLOWS TERMINAL 5 OF THE RELAY AND RELEASES THE AUTO DOWN FUNCTION IN THE POWER WINDOW CONTROL RELAY. RELEASING THE HAND FROM SW, WINDOW
STOPS AND CONTINUING ON TOUCHING SW, THE FUNCTION SWITCHES TO MANUAL UP OPERATION.
4.
PASSENGER'S WINDOW UP OPERATION (MASTER SW) AND WINDOW LOCK SW OPERATION
HOLDING PASSENGER'S WINDOW SW (MASTER SW) ON "UP", THE CURRENT FLOWS FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 6 TO TERMINAL 3 OF
THE POWER WINDOW SW (PASSENGER'S) Õ TERMINAL 4 Õ TERMINAL 2 OF THE MOTOR Õ TERMINAL 1 Õ TERMINAL 9 OF THE POWER WINDOW SW Õ TERMINAL
7 Õ TERMINAL 1 OF THE MASTER SW Õ TERMINAL 4 TO GROUND. THE MOTOR RUNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS
STOPPED AND WINDOW CAN STOP AT WILL PLACE.
SWITCHING THE WINDOW LOCK SW IN "LOCK" POSITION, THE CIRCUIT IS OPENED AND STOPPED THE MOTOR ROTATION.
(FOR THE DOWN OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).
R

SERVICE HINTS

P 2 POWER WINDOW CONTROL RELAY
3–GROUND: ALWAYS CONTINUITY
2–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
5–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT UP POSITION
8–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT AUTO DOWN POSITION
9–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT DOWN OR AUTO DOWN POSITION
P 4 POWER WINDOW MASTER SW
4–GROUND: ALWAYS CONTINUITY
3–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
WINDOW LOCK SW
OPEN WITH THE WINDOW LOCK SW AT LOCK POSITION
S

: PARTS LOCATION

CODE
P 2 21
P 3 21
T
: RELAY BLOCKS
CODE SEE PAGE
1 16
U
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE SEE PAGE
3B 14
V
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE SEE PAGE
ID1 26
IH1 26
W

: GROUND POINTS

CODE SEE PAGE
IC 24
X
: SPLICE POINTS
CODE SEE PAGE
I 5 24
6
SEE PAGE CODE
P 4
P 5
RELAY BLOCK (RELAY BLOCK LOCATION)
R/B NO. 1 (INSTRUMENT PANEL LEFT SIDE)
JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
J/B NO. 3 AND COWL WIRE (INSTRUMENT PANEL LEFT SIDE)
JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)
FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)
GROUND POINT LOCATION
COWL LEFT
WIRE HARNESSES WITH SPLICE POINTS
COWL WIRE
SEE PAGE
21
21
CODE SEE PAGE
P 6 21
21