1992 Toyota Previa Electrical Supplement

SYSTEM OUTLI NE

WITH THE I GN IT I ON SW TURNED ON. THE CURRENT FLOWS THROUGH W I PER FUSE FROM TERMINAL 11 OF THE W I PER AND WASHER SW.

TERMINAL 4 OF THE WIPER RELAY. TERMINAL 5 OF THE WIPER MOTOR.

1. LOW SPEED POSITION
   WITH WIPER AND WASHER SW TURNED TO LOll POSITION. THE CURRENT FLOWS FROM TERMINAL 11 OF THE WIPER ~ TERMINAL 7 ~
   TERMINAL 3 OF THE WIPER MOTOR ~ MOTOR ~ TO GROUND AND CAUSES THE WIPER MOTOR TO RUN AT LOW SPEED.


2. HIGH SPEED POSITION
   WITH WIPER AND WASHER SW TURNED TO HIGH POSITION.4tTHE CURRENT FLOWS FROM TERMINAL 18 OF THE WIPER SW ~ TERMINAL 13
   ~ TERMINAL 2 OF THE WIPER MOTOR ~ MOTOR ~ TO GROUND AND CAUSES THE WIPER MOTOR TO RUN AT HIGH SPEED.


3. INT POSITION
   WITH WIPER AND WASHER SW TURNED TO INT POSITION. THE CURRENT FLOWS FROM TERMINAL 4 OF THE WIPER RELAY ~ TERMINAL 2
   ~ TERMINAL 12 OF THE WIPER AND WASHER SW ~ TERMINAL 16 ~ TO GROUND. AS A RESULT. THE WIPER RELAY OPERATES AND
   THE CURRENT IN TERMINAL 4 OF THE RELAY FLOWS TO TERMINAL 3 OF THE RELAY ~ TERMINAL 4 OF THE WIPER AND WASHER SW
   ~ TERMINAL 7 ~ TERMINAL 3 OF THE WIPER MOTOR ~ MOTOR ~ TO GROUND AND OPERATES ITS FUNCTION. INTERMITTENT
   OPERATION IS CONTROLLED BY THE DISCHARGING OF A CONDENSER BUILT IN THE RELAY. THIS DISCHARGE TIME HAS BEEN CHARGED BY
   TIMER CONTROL SW TO VARIEGATE THE INTERMITTENT INTERVAL.


4. WASHER OPERATION
   WITH WIPER AND WASHER SW TURNED TO WASHER SW ON POSITION. THE CURRENT IN TERMINAL 5 OF THE MOTOR FLOWS TO TERMINAL I
   ~ FR-WASHER FUSE ~ TERMINAL 2 OF WASHER MOTOR ~ TERMINAL I ~ TERMINAL 8 OF WIPER AND WASHER SW ~ OF
   TERMINAL 16 ~ TO GROUND AND CAUSED TO THE WASHER MOTOR TO RUN. WINDOW WASHER IS INJECTED WHEN THE WASHER SW IS
   PUSHED CONTINUOUSLY.

SERVICE HINTS

ell FRONT WIPER AND WASHER SW (WI WIPER RELAY)

16-GROUND:ALWAYS CONTINUITY

18-GROUND:APPROX. 12VOLTS WITH IGNITION SW AT ON POSITION

7-GROUND:APPROX. 12VOLTS WITH WIPER A~D WASHER SW AT LOll POSITION

APPROX. 12VOLTS EVERY APPROX. I TO IOSECONDS INTERMITTENTLY WITH WIPER SW AT INT POSITION

4-GROUND:APPROX. 12VOLTS WITH IGNITION SW ON UNLESS WIPER MOTOR AT STOP POSITION

13-GROUND:APPROX. 12VOLTS WITH IGNITION SW ON AND AFTER WIPER SW OFF UNTIL WIPER MOTOR STOPS

F 7 FRONT WIPER MOTOR

3-4 :CLOSED UNLESS WIPER MOTOR AT STOP POSITION

() I PARTS LOCATION

CODE SEE PAGE CODE SEE PAGE CODE

ell 22 F 7 20

F 6 20 FI8 23

<:) I RELAY BLOCKS

RELAY BLOCKS (RELAY BLOCK LOCATION)

RIB NO. 1 (I NSTRUMENT PANEL CENTER)

\V7 I GROUND POINTS

GROUND POINTS LOCATION

FRONT RIGHT FENDER

c=) I SPLICE POINTS

SEE PAGE

CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS

I (^85) COWL WIRE
1108 26
ell BLACK
1-1-lxI41-1 c::::u 16171slxI
1-1·1121 1131141·1161·1 1181 X 1·1
1125 26 COWL WIRE
F 6 BLACK F 7 BLACK FI8 GRAY