Toyota 2004 CELICA, Electric Troubleshooting Manual

Page: 191 / 284

2004 CELICA (EWD538U)
192
FRONT WIPER AND WASHER
With the ignition SW turned on, current flows to TERMINAL 17 of the front wiper and washer SW, TERMINAL 2 of the wiper
motor through the WIPER fuse and TERMINAL 2 of the washer motor through the WSH 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 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 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 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 to TERMINAL 7 to TERMINAL 5 of the wiper
motor to wiper motor to TERMINAL 4 to GROUND, causing the front wiper motor to run at low speed.
5. WASHER INTERLOCKING 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 wiper motor to TERMINAL 4 to GROUND, operating
the wiper.
C14 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 2 to 12 seconds intermittently with the wiper and washer SW at INT position
16-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 Code See Page Code See Page
C14 36 F11 34 (2ZZ-GE)
W1
33 (1ZZ-FE)
F11 32 (1ZZ-FE) J3 37
W1
35 (2ZZ-GE)
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,,,
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: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
IE
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
II
25 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IG4 46 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel)
SYSTEM OUTLINE
SERVICE HINTS