Toyota Tundra Service Manual: Wiper Switch

Components

COMPONENTS

ILLUSTRATION

Inspection

INSPECTION

PROCEDURE

1. INSPECT WIPER AND WASHER SWITCH ASSEMBLY

(a) Measure the resistance according to the value(s) in the table below.

Standard resistance:

Windshield wiper switch

Tester Connection

Switch Condition

Specified Condition

B-3 (+1) - B-2 (+B)

MIST

Below 1 Ω

B-3 (+1) - B-1 (+S)

OFF

B-3 (+1) - B-1 (+S)

INT

B-3 (+1) - B-2 (+B)

LO

B-4 (+2) - B-2 (+B)

HI

Windshield washer switch

Tester Connection

Switch Condition

Specified Condition

A-3 (WF) - A-2 (EW)

OFF

10 kΩ or higher

ON

Below 1 Ω

If the result is not as specified, replace the switch assembly.

(b) Check the intermittent operation.

(1) Connect the voltmeter's positive (+) lead to terminal B-3 (+1) and the negative (-) lead to terminal A-2 (EW).

(2) Connect the battery's positive (+) lead to terminal B-2 (+B) and the negative (-) lead to terminals A-2 (EW) and B-1 (+S).

(3) Turn the wiper switch to the INT position.

(4) Connect the battery's positive (+) lead to terminal B-1 (+S) for 5 seconds.

(5) Connect the battery's negative (-) lead to terminal B-1 (+S). Operate the intermittent wiper relay and check the voltage between terminals B-3 (+1) and A-2 (EW).

OK:

Refer to illustration below.

If the result is not as specified, replace the switch assembly.

(c) Check the washer operation.

(1) Turn the wiper switch OFF.

(2) Connect the battery's positive (+) lead to terminal B-2 (+B) and the negative (-) lead to terminals B-1 (+S) and A-2 (EW).

(3) Connect the voltmeter's positive (+) lead to terminal B-3 (+1) and the negative (-) lead to terminal A-2 (EW).

(4) Turn the washer switch ON and OFF, and check the voltage between terminals B-3 (+1) and A-2 (EW).

OK:

Refer to illustration below.

If the result is not as specified, replace the switch assembly.

Installation

INSTALLATION

PROCEDURE

1. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY

(a) Attach the claw to install the wiper switch.

(b) Connect the 2 connectors.

2. INSTALL UPPER STEERING COLUMN COVER

(a) Attach the 4 clips to install the upper steering column cover onto the instrument panel cluster finish panel.

(b) Attach the claw to install the upper steering column cover.

3. INSTALL LOWER STEERING COLUMN COVER

(a) Attach the 2 claws to install the lower steering column cover.

NOTICE:

Do not damage the tilt and telescopic switch.

(b) Using a screwdriver, while turning the steering wheel to the right and left, install the 2 screws and lower steering column cover.

Removal

REMOVAL

PROCEDURE

1. REMOVE LOWER STEERING COLUMN COVER

(a) for Manual Tilt and Telescopic:

(1) Operate the tilt and telescopic lever to fully extend and lower the steering column.

(b) for Power Tilt and Telescopic:

(1) Turn the ignition switch ON. Operate the tilt and telescopic switch to fully extend and lower the steering column.

(c) While turning the steering wheel to the right and left, remove the 2 screws and lower steering column cover.

(d) Detach the 2 claws to remove the lower steering column cover.

NOTICE:

Do not damage the tilt and telescopic switch.

2. REMOVE UPPER STEERING COLUMN COVER

(a) Detach the 4 clips.

(b) Detach the claw to remove the upper steering column cover.

3. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY

(a) Disconnect the 2 connectors.

(b) Detach the claw and remove the wiper switch.

NOTICE:

Do not push the claw with excessive force as it may brake.

    Washer Fluid Level Warning Switch Circuit

    See More:

    Toyota Tundra Service Manual > Power Tilt And Power Telescopic Steering Column System: How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedures to troubleshoot the power tilt and power telescopic steering column system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge o ...

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