Low Speed Position; High Speed Position; Int Position; Mist Position - Toyota MR2 2000 Manual

WIPER AND WASHER
SYSTEM OUTLINE
With the ignition SW turned on, current flows to TERMINAL 17 of the front wiper and washer SW, TERMINAL 2 of the front
wiper motor through the WIPER fuse and TERMINAL 2 of the washer motor through the WASHER fuse.

1. LOW SPEED POSITION

With the wiper SW turned to LOW position, current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to GROUND, causing the front wiper motor to run at
low speed.

2. HIGH SPEED POSITION

With the wiper SW turned to HIGH position, current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 8 to TERMINAL 3 of the front wiper motor to TERMINAL 4 to GROUND, causing the front 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
TERMINAL 17 of the front wiper and washer SW to TERMINAL 2 to GROUND. This operates the intermittent circuit and
current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor
to TERMINAL 4 to GROUND, and operating the wiper.
The intermittent operation is controlled by a condenser's charged and discharged function installed in the relay, and the
intermittent time is controlled by a time control SW to change the charging time of the condenser.

4. MIST POSITION

With the wiper SW turned to MIST position, current flows from TERMINAL 17 of the front wiper and washer SW to front wiper
mist SW to TERMINAL 2 to GROUND, and current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to GROUND, causing the front wiper motor to run at
low speed.
5. WASHER CONTINUOUS OPERATION
With the washer SW pushed to on, current flows from TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 11 of
the front wiper and washer SW to TERMINAL 2 to GROUND, causing the washer motor to run, and the window washer
emits a water spray. This causes current to flow to washer continuity operation circuit in TERMINAL 17 of the front wiper and
washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to GROUND, operating the wiper.
SERVICE HINTS
C15 FRONT WIPER AND WASHER SW [COMB. SW]
2–GROUND : Always continuity
17–GROUND : Approx. 12 volts with the ignition SW at ON position
7–GROUND : Approx. 12 volts with the wiper and washer SW at LOW or MIST position
Approx. 12 volts 1.6 to 10.7 seconds intermittently with the wiper and washer SW at INT position
15–GROUND : Approx. 12 volts with the ignition SW on unless the wiper motor at STOP position
8–GROUND : Approx. 12 volts with the wiper and washer SW at HIGH position
F11 FRONT WIPER MOTOR
1–2 : Closed unless the wiper motor at STOP position
: PARTS LOCATION
Code See Page
C15 32
: RELAY BLOCKS
Code See Page
3 24
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page
IB1 38
IF1 40
92
Code
F11
Relay Blocks (Relay Block Location)
R/B No.3 (Left Side of Instrument Panel)
Joining Wire Harness and Wire Harness (Connector Location)
Luggage Room Wire and Instrument Panel Wire (Left Kick Panel)
Luggage Room Wire and Instrument Panel Wire (Instrument Panel Brace LH)
See Page
34
2000 MR2 (EWD408U)
Code See Page
W2 35