Toyota Tundra Service Manual: Headlight Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT HEADLIGHT RELAY

(a) Remove the headlight relay from the engine room relay box.

(b) Check the resistance.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 - 5

Battery voltage not applied to terminals 1 and 2

10 kΩ or higher

Battery voltage applied to terminals 1 and 2

Below 1 Ω

If the result is not as specified, replace the headlight relay.

(c) Install the headlight relay to the engine room relay box.

    Removal

    High Beam Main Switch

    See More:

    Toyota Tundra Service Manual > Rear Bumper(for Resin Type Bumper): Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE LICENSE PLATE LIGHT ASSEMBLY LH 2. REMOVE LICENSE PLATE LIGHT ASSEMBLY RH HINT: Use the same procedure described for the LH side. 3. REMOVE REAR BUMPER PLATE LH (a) Detach the 3 claws and clip and remove the rear bumper plate LH. 4. REMOVE REAR BUMPER PLATE RH HINT: U ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0091