2003 4RUNNER (EWD514U)
181
With the ignition SW turned on, the current flows to TERMINAL 17 of the wiper and washer SW, TERMINAL 1 of the washer
motor and TERMINAL 2 of the front wiper motor through the FR WIP–WSH fuse.
1. Low Speed Position
With the wiper and washer SW turned to LO position, the current flows from TERMINAL 17 of the wiper and washer SW to
TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and causes the front wiper motor to run
at low speed.
2. High Speed Position
With the wiper and washer SW turned to HI position, the current flows from TERMINAL 17 of the wiper and washer SW to
TERMINAL 8 to TERMINAL 4 of the front wiper motor to TERMINAL 5 to GROUND and causes the front wiper motor to run
at high speed.
3. INT Position
With the wiper and washer SW turned to INT position, the wiper relay operates and current flows from TERMINAL 17 of the
wiper and washer SW to TERMINAL 2 to GROUND. This activates the intermittent circuit and the current flows from
TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to
GROUND and the wiper operates. Intermittent operation is controlled by a condenser charge and discharge function in the
relay.
4. Washer Interlocking Operation
With the wiper and washer SW pulled to washer position (Washer SW ON position), the current flows from the FR WIP–WSH
fuse to TERMINAL 1 of the washer motor to TERMINAL 2 to TERMINAL 11 of the wiper and washer SW to TERMINAL 2 to
GROUND and causes the washer motor to run and the window washer to spray. Simultaneously, current flows from the FR
WIP–WSH fuse to TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to
TERMINAL 5 to GROUND, causing the wiper to function.
C14 Combination SW
2–Ground : Always continuity
17–Ground : Approx. 12 volts with the ignition SW at ON position
7–Ground : Approx. 12 volts with the ignition SW on and the wiper and washer SW at LO position
Approx. 12 volts every approx. 1 to 10 seconds intermittently with the ignition SW on
and the wiper and washer SW at INT position
16–Ground : Approx. 12 volts with the ignition SW on and unless the front wiper motor at STOP position
8–Ground : Approx. 12 volts with the ignition SW on and the wiper and washer SW at HI position
F7 Front Wiper Motor
2–3 : Closed unless the front wiper motor at STOP position
: Parts Location
Code See Page Code See Page Code See Page
C14 37 J5 38 W2 35 (1GR–FE)
32 (2UZ–FE) J15 38
F7
34 (1GR–FE) W2 33 (2UZ–FE)
:
Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1E 24 Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1J 25 Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
:
Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC4 48 Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IN1 52 Instrument Panel Wire and Engine Room Main Wire (Right Kick Panel)
System Outline
Service Hints
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