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.

(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

5 (UL) - 8 (E)

Unlock

Below 1 Ω

5 (UL) - 8 (E)

6 (L) - 8 (E)

OFF

10 kΩ or higher

6 (L) - 8 (E)

Lock

Below 1 Ω

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

    Installation

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