Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2006SEQUOIA 4WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISWIPER AND WASHER SYSTEMSWIPER SWITCHTESTING AND INSPECTION
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)
Wiper Switch: Testing and Inspection
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)SECTION Testing and Inspection
INSPECTION
1. INSPECT WIPER AND WASHER SWITCH
If continuity is not as specified, replace the switch.
2. INSPECT FRONT WIPER INTERMITTENT OPERATION
a. Turn the wiper switch to the INT position.
b. Turn the intermittent time control switch to the FAST position.
c. Connect the positive (+) lead from the battery to terminal 16 and the negative (-) lead to terminal 2.
d. Connect the positive (+) lead from the voltmeter to terminal 7 and the negative (-) lead to terminal 2, and check that the meter needle indicates battery positive voltage.
If operation is not as specified, replace the wiper and washer switch.
3. INSPECT FRONT WASHER LINKED OPERATION
a. Connect the positive (+) lead from the battery to terminal 16 and the negative (-) lead to terminal 2.
b. Connect the positive (+) lead from the voltmeter to terminal 7 and the negative (-) lead to terminal 2.
c. Push in the washer switch, and check that the voltage changes as shown in the illustration.
If operation is not as specified, replace the wiper and washer switch.
4. INSPECT REAR WIPER AND WASHER SWITCH
If continuity is not as specified, replace the wiper and washer switch.
1. INSPECT WIPER AND WASHER SWITCH
If continuity is not as specified, replace the switch.
2. INSPECT FRONT WIPER INTERMITTENT OPERATION
a. Turn the wiper switch to the INT position.
b. Turn the intermittent time control switch to the FAST position.
c. Connect the positive (+) lead from the battery to terminal 16 and the negative (-) lead to terminal 2.
d. Connect the positive (+) lead from the voltmeter to terminal 7 and the negative (-) lead to terminal 2, and check that the meter needle indicates battery positive voltage.
If operation is not as specified, replace the wiper and washer switch.
3. INSPECT FRONT WASHER LINKED OPERATION
a. Connect the positive (+) lead from the battery to terminal 16 and the negative (-) lead to terminal 2.
b. Connect the positive (+) lead from the voltmeter to terminal 7 and the negative (-) lead to terminal 2.
c. Push in the washer switch, and check that the voltage changes as shown in the illustration.
If operation is not as specified, replace the wiper and washer switch.
4. INSPECT REAR WIPER AND WASHER SWITCH
If continuity is not as specified, replace the wiper and washer switch.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.