Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT FRONT DOOR LOCK ASSEMBLY LH

(a) Check the door lock motor.

(1) Apply battery voltage to the door lock motor and check operation of the door lock motor.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 4 (L)

Battery negative (-) → Terminal 1 (UL)

Lock

Battery positive (+) → Terminal 1 (UL)

Battery negative (-) → Terminal 4 (L)

Unlock

  • If the result is not as specified, replace the door lock assembly.

(b) Check the door lock position switch.

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

Standard resistance:

Tester Connection

Switch Condition

Specified Condition

7 (E) - 8 (LSSR)

Unlock

Below 1 Ω

Lock

10 kΩ or higher

  • If the result is not as specified, replace the door lock assembly.

(c) Check the door lock and unlock switch.

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

Standard resistance:

Tester Connection

Switch Condition

Specified Condition

9 (L) - 7 (E)

Lock

Below 1 Ω

9 (L) - 7 (E)

10 (UL) - 7 (E)

OFF

10 kΩ or higher

10 (UL) - 7 (E)

Unlock

Below 1 Ω

  • If the result is not as specified, replace the door lock assembly.

2. INSPECT FRONT DOOR LOCK ASSEMBLY RH

(a) Check the door lock motor.

(1) Apply battery voltage to the door lock motor and check operation of the door lock motor.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 4 (L)

Battery negative (-) → Terminal 1 (UL)

Lock

Battery positive (+) → Terminal 1 (UL)

Battery negative (-) → Terminal 4 (L)

Unlock

  • If the result is not as specified, replace the door lock assembly.

(b) Check the door lock position switch.

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

Standard resistance:

Tester Connection

Switch Condition

Specified Condition

7 (LSSR) - 8 (E)

Unlock

Below 1 Ω

Lock

10 kΩ or higher

  • If the result is not as specified, replace the door lock assembly.
    Components

    Installation

    See More:

    Toyota Tundra Service Manual > Front Seat Side Airbag Assembly(for Power Seat): On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. CHECK FRONT SEAT AIRBAG ASSEMBLY LH (VEHICLE NOT INVOLVED IN COLLISION) (a) Perform a diagnostic system check (see page ). (b) With the front seat airbag assembly LH installed on the vehicle, perform a visual check. If there are any defects as mentioned below, repl ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.0128