Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT HEADLIGHT ASSEMBLY LH

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

OK:

Battery Connection

Specified Condition

If the result is not as specified, replace the headlight assembly LH.

Positive (+) → 6

Negative (-) → 4

Parking light illuminates

Positive (+) → 5

Negative (-) → 4

Daytime running light illuminates

Positive (+) → 2

Negative (-) → 4

Low beam illuminates

Positive (+) → 1

Negative (-) → 4

High beam illuminates

*a

Component without harness connected

(Headlight Assembly LH)

2. INSPECT HEADLIGHT ASSEMBLY RH

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

OK:

Battery Connection

Specified Condition

If the result is not as specified, replace the headlight assembly RH.

Positive (+) → 6

Negative (-) → 4

Parking light illuminates

Positive (+) → 5

Negative (-) → 4

Daytime running light illuminates

Positive (+) → 2

Negative (-) → 4

Low beam illuminates

Positive (+) → 1

Negative (-) → 4

High beam illuminates

*a

Component without harness connected

(Headlight Assembly RH)

    Disassembly

    Installation

    See More:

    Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Diagnosis System
    DIAGNOSIS SYSTEM 1. DESCRIPTION The 4 wheel drive control ECU records DTCs when the ECU detects a malfunction in the ECU itself or in system circuits. The DTCs can be read through the DLC3 of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and pe ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.0112