Toyota Tundra 2005 Service - Repair - Maintenance page 3942

System Outline
With the ignition SW turned on, current flows to TERMINAL 17 of the wiper and washer SW, TERMINAL 3 of the washer
motor and TERMINAL 2 of the wiper motor through the WIP fuse.
1. Low Speed Position
With wiper SW turned to LOW position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to
TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and causes the wiper motor to run at low speed.
2. High Speed Position
With wiper SW turned to HIGH position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 8 to
TERMINAL 3 of the wiper motor to TERMINAL 4 to GROUND and causes the motor to run at high speed.
3. INT Position
With wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows from
TERMINAL 17 of the wiper and washer SW to TERMINAL 2 to GROUND. This flowing the intermittent circuit and current
flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the wiper motor to TERMINAL 4 to
GROUND and the wiper functions.
The intermittent operation is controlled by charging and discharging of the condenser installed in the relay and the
intermittent time is controlled by a time control SW to change the charging time of the condenser.
4. Washer Interlocking Operation
With the washer SW turned to on, current flows from TERMINAL 3 of the washer motor to TERMINAL 4 to TERMINAL 11 of
the wiper and washer SW to TERMINAL 2 to GROUND and causes to the washer motor to run, and the window washer is
jetted.
This causes current to flow to washer continuous operation circuit in TERMINAL 17 of the wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and the wiper functions.
Service Hints
C17 Combination SW
2-Ground : Always continuity
17-Ground : Approx. 12 volts with ignition SW at ON position
7-Ground : Approx. 12 volts with wiper and washer SW at LOW position
Approx. 12 volts every approx. 1.6 to 10.7 seconds intermittently with wiper SW at INT position
16-Ground : Approx. 12 volts with ignition SW on unless wiper motor at STOP position
8-Ground : Approx. 12 volts with ignition SW on and wiper and washer SW at HIGH position
11-2 : Continuity with washer SW on
W4 Wiper Motor
1-2 : Closed unless wiper motor at STOP position
: Parts Location
Code See Page
C11 A 56
C12 B 56
C17 56
J3 58
: Junction Block and Wire Harness Connector
Code See Page
24 (*2)
1E 1E
28 (*1)
24 (*2)
1F 1F
28 (*1)
24 (*2)
1G 1G
28 (*1)
* 1 : w/ Daytime Running Light
* 6 : Captain Seat * 7 : Access Cab Captain Seat
Code
J13
J26 A
J27 B
W2
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel) Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel) Cowl Wire and Driver Side J/B (Lower Finish Panel)
* 2 : w/o Daytime Running Light
* 8 : Standard Cab Bench Seat
2005 TOYOTA TUNDRA (EWD611U)
See Page
58
58
58
53 (2UZ-FE)
* 3 : Access Cab * 4 : Standard Cab
* 9 : Access Cab w/o Power Seat
Code See Page
W2 55 (1GR-FE)
53 (2UZ-FE)
W4 W4
55 (1GR-FE)
* 5 : Bench Seat
285