Toyota Tundra Service Manual: Inspection

Toyota Tundra Service Manual / Vehicle Interior / Lighting / Headlight Leveling Switch / Inspection

INSPECTION

PROCEDURE

1. INSPECT HEADLIGHT LEVELING SWITCH

(a) Check the voltage.

(1) Connect the battery positive (+) lead to terminal 1 (B) and the negative (-) lead to terminal 5 (E).

(2) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

1 (B) - 2 (T)

0

10.4 to 11.2 V

1

8.52 to 9.24 V

2

6.6 to 7.32 V

3

4.68 to 5.40 V

4

2.76 to 3.48 V

5

0.84 to 1.56 V

If the result is not as specified, replace the headlight leveling switch.

Text in Illustration

*a

Component without harness connected

(Headlight Leveling Switch)

(b) Check the illumination.

(1) Apply battery voltage to the connector and check the illumination condition.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 3 (ILL+)

Battery negative (-) → Terminal 4 (ILL-)

Illuminates

If the result is not as specified, replace the headlight leveling switch.

Text in Illustration

*a

Component without harness connected

(Headlight Leveling Switch)
    Components

    Installation

    See More:

    Toyota Tundra Service Manual > Cruise Control System: Problem Symptoms Table
    PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the ECM, refer to Registration. Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0206