POWER DOOR LOCK CONTROL SYSTEM > Driver Side Door Lock Motor Circuit

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DESCRIPTION

The driver's door lock motor is built into the driver's door lock assembly.
The body ECU controls the driver's door lock motor to lock/unlock the driver's door. This ECU applies current from terminal ACT+ to terminal ACT- to operate the motor to lock the door. It reverses the direction of the current flow to operate the motor to unlock the door.

WIRING DIAGRAM


B111720E01


INSPECTION PROCEDURE

1.INSPECT FRONT DOOR LOCK ASSEMBLY (DOOR LOCK MOTOR)


  1. LHD Models:


    B112740E01

    Remove the front door lock assembly LH.

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

      OK:
      Measurement Condition
      		Specified Condition
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 3
      		Lock
      Battery positive (+) → Terminal 3
      Battery negative (-) → Terminal 4
      		Unlock



    B064708E01

  1. RHD Models:
    Remove the front door lock assembly RH.

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

      OK:
      Measurement Condition
      		Specified Condition
      Battery positive (+) → Terminal 2
      Battery negative (-) → Terminal 1
      		Lock
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 2
      		Unlock



NG
REPLACE FRONT DOOR LOCK ASSEMBLY
OK


2.CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL J/B)


    B112736E01

  1. LHD Models:
    Disconnect the front door lock assembly LH connector.

    1. Disconnect the instrument panel J/B connectors.

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

      Standard resistance:
      Tester Connection
      		Condition
      		Specified Condition
      D10-4 (L) - 1K-2
      		Always
      		Below 1 Ω
      D10-3 (UL) - 1F-18
      		Always
      		Below 1 Ω



    B111698E07

  1. RHD Models:
    Disconnect the front door lock assembly RH connector.

    1. Disconnect the instrument panel J/B connector.

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

      Standard resistance:
      Tester Connection
      		Condition
      		Specified Condition
      D10-2 (L) - 1J-1
      		Always
      		Below 1 Ω
      D10-1 (UL) - 1J-2 (ACT-)
      		Always
      		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE