System Outline; Service Hints - Toyota Supra 2015 Wiring Diagram Manual

SYSTEM OUTLINE

WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 18 OF THE FRONT WIPER AND WASHER SW,
TERMINAL 2 OF THE WASHER MOTOR AND TERMINAL 6 OF THE FRONT WIPER MOTOR FROM THE WIPER FUSE.
1. LOW SPEED POSITION
WITH THE WIPER SW TURNED TO LOW POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE FRONT WIPER AND
WASHER SW TO TERMINAL 7 → TERMINAL 3 OF THE FRONT WIPER MOTOR → TERMINAL 1 → TO GROUND AND CAUSES THE
WIPER MOTOR TO RUN AT LOW SPEED.
2. HIGH SPEED POSITION
WITH THE WIPER SW TURNED TO HIGH POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE FRONT WIPER AND
WASHER SW → TERMINAL 13 → TERMINAL 2 OF THE FRONT WIPER MOTOR→ TERMINAL 1 → TO GROUND AND CAUSES TO THE
WIPER MOTOR TO RUN AT HIGH SPEED.
3. INT POSITION
WITH THE WIPER SW TURNED TO INT POSITION, THE RELAY OPERATES AND THE CURRENT WHICH IS CONNECTED BY RELAY
FUNCTION FLOWS FROM THE TERMINAL 18 OF THE FRONT WIPER AND WASHER SW → TERMINAL 16→ TO GROUND. THIS
FLOWS OF THE CURRENT OPERATES THE INTERMITTENT CIRCUIT AND THE CURRENT FLOWS FROM TERMINAL 18 OF THE
FRONT WIPER AND WASHER SW → TERMINAL 7 → TERMINAL 3 OF THE FRONT WIPER MOTOR → TERMINAL 1 → TO GROUND
AND FUNCTIONS.
THE INTERMITTENT OPERATION IS CONTROLLED BY A CONDENSER'S CHARGED AND DISCHARGED FUNCTION INSTALLED IN
RELAY AND INTERMITTENT TIME IS CONTROLLED BY A TIME CONTROL SW TO CHARGE THE CHARGING TIME OF THE
CONDENSER.
4. MIST POSITION
WITH THE WIPER SW TURNED TO MIST POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE FRONT WIPER AND
WASHER SW → TERMINAL 7 → TERMINAL 3 OF THE FRONT WIPER MOTOR → TERMINAL 1 → TO GROUND AND CAUSES THE
WIPER MOTOR TO RUN AT LOW SPEED.
5. WASHER CONTINUOUS OPERATION
WITH THE WASHER SW TURNED TO ON, THE CURRENT FLOWS THROUGH TERMINAL 2 OF THE WASHER MOTOR → TERMINAL
1→ TERMINAL 8 OF THE FRONT WIPER AND WASHER SW → TERMINAL 16 → TO GROUND AND CAUSES TO THE WASHER MOTOR
TO RUN, AND WINDOW WASHER IS JET. THIS CAUSES THE CURRENT TO FLOW WASHER CONTINUOUS OPERATION CIRCUIT IN
TERMINAL 18 OF THE FRONT WIPER AND WASHER SW → TERMINAL 7 → TERMINAL 3 OF THE FRONT WIPER MOTOR→ TERMINAL
1 → TO GROUND AND FUNCTION.

SERVICE HINTS

C14 FRONT WIPER AND WASHER SW [COMB. SW]
16-GROUND : ALWAYS CONTINUITY
18-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
7-GROUND : APPROX. 12 VOLTS WITH THE WIPER AND WASHER SW AT LOW POSITION
: APPROX. 12 VOLTS EVERY APPROX. 1 TO 10 SECONDS INTERMITTENTLY WITH THE WIPER SW AT INT POSITION
4-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW ON UNLESS THE WIPER MOTOR AT STOP POSITION
13-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW ON AND THE WIPER AND WASHER SW AT HIGH POSITION
F 9 FRONT WIPER MOTOR
5-6 : CLOSED UNLESS WIPER MOTOR AT STOP POSITION
: PARTS LOCATION
CODE SEE PAGE
C14 28
F 9 24 (2JZ-GTE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE SEE PAGE
1A 20
1H
1J
20 20
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE SEE PAGE
IB2
36
CODE
F 9
W 1
JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL) COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
SEE PAGE
26 (2JZ-GE)
25 (2JZ-GTE)
CODE SEE PAGE
W 2 27 (2JZ-GTE)
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