Toyota CELICA 1990 All-Trac/4WD, Repair Manual

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99
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS TO TERMINAL 2 OF THE REAR WASHER MOTOR, TERMINAL 1 OF THE
REAR WIPER MOTOR AND RELAY THROUGH THE WIPER FUSE.
1. REAR WIPER NORMAL OPERATION
WITH THE IGNITION SW TURNED ON AND REAR WIPER AND WASHER SW TURNED ON, THE CURRENT FLOWING TO ERMINAL 1 OF
THE REAR WIPER RELAY FLOWS TO TERMINAL 3 OF THE RELAY
→
TERMINAL 1 OF THE REAR WIPER AND WASHER SW
→
TERMINLA 16
→
TO GROUND. THUS, THE RELAY COIL IS ACTIVATED AND THE CURRENT TO TERMINAL 1 OF THE REALY FLOWS TO
TERMINAL LB
→
TERMINAL LB OF THE REAR WIPER MOTOR
→
MOTOR
→
TO GROUND AND CAUSES THE MOTOR TO OPERATE
THE WIPER.
2. REAR WIPER INTERMITTENT OPERATION
WHEN THE IGNITION SW IS ON AND THE REAR WIPER AND WASHER SW IS TURNED TO INT POSITION, CURRENT FLOWING TO
TERMINAL 1 OF THE REAR WIPER MOTOR AND RELAY FLOWS TO TERMINAL 2 OF THE RELAY
→
TERMINAL 10 OF THE REAR
WIPER AND WASHER SW
→
TERMINAL 16
→
GROUND.
THIS CAUSES THE MOTOR TO OPERATE (THE POINT CHANGES) AND THE INTERMITTENT CIRCUIT OF THE RELAY OPERATES.
INTERMITTENT OPERATION OF THE CIRCUIT IS CONTROLLED BY THE CHARGING AND DISCHARGING OF THE CONDENSER
INSTALLED INSIDE THE RELAY.
3. WASHER OPERATION
WITH THE IGNITION SW TURNED ON AND THE REAR WIPER AND WASHER SW TURNED TO ON POSITION, WHEN THE WIPER SW IS
TURNED FURTHER, THE CURRENT FLOWING TO TERMINAL 2 OF THE REAR WASHER MOTOR FLOWS TO TERMINAL 3 OF THE
MOTOR
→
TERMINAL 2 OF THE REAR WIPER AND WASHER SW
→
TERMINAL 16
→
TO GROUND SO THAT THE WASHER MOTOR
ROTATES AND THE WINDOW WASHER EJECTS THE SPRAY, ONLY WHILE THE SWITCH IS FULLY TURNED.
WHEN THE WIPER SW IS OFF AND THEN TURNED TO WASHER ON (WIPER OFF SIDE), ONLY THE WASHER OPERATES.
W 1
WASHER MOTOR
2–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
3–GROUND : CONTINUITY WITH WASHER SW TURNED ON
R23
REAR WIPER CONTROL RELAY AND MOTOR
1–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
2–GROUND : CONTINUITY WITH REAR WIPER SW AT INT POSITION
3–GROUND : CONTINUITY WITH REAR WIPER SW AT ON POSITION
: PARTS LOCATION
CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE
C14 26 R23 27
J 6 26 W 1 25
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B 18 COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1F 18 FLOOR WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IF1 30 FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)
BN1 34 BACK DOOR NO. 1 WIRE AND FLOOR WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BO1 34 BACK DOOR NO. 1 WIRE AND BACK DOOR NO. 1 SUB WIRE (BACK DOOR UPPER LEFT)
: GROUND POINTS
CODE SEE PAGE GROUND POINTS LOCATION
ID 30 LEFT KICK PANEL
BLACK GRAY
1 2 X X
X X X 16 X
A A
A A A A
1 2 3
C14 J 6 R23 W 1
(HINT : SEE PAGE 7)
2 3
10
SYSTEM OUTLINE
SERVICE HINTS