Toyota Tundra Service Manual: Inspection

Toyota Tundra Service Manual / Vehicle Interior / Door Lock / Front Door Lock(for Crewmax) / 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
7 (E) - 8 (LSSR)	Lock	10 kΩ or higher

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

(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
7 (LSSR) - 8 (E)	Lock	10 kΩ or higher

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

See More:

Toyota Tundra Service Manual > Power Door Lock Control System: All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
DESCRIPTION The main body ECU (multiplex network body ECU) receives switch signals from the door control switch assembly on the driver and front passenger door and activates the door lock motor on each door according to these signals. WIRING DIAGRAM w/o Jam Protection Function: w/ Jam Protection Fun ...

Toyota Tundra Service Manual: Inspection

Components

Installation

See More:

Toyota Tundra Owners Manual

Toyota Tundra Service Manual