Power Door Lock Control System Driver Side Door Lock Motor Circuit

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Door Lock. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FRONT DOOR LOCK ASSEMBLY (DOOR LOCK MOTOR)

CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU RH)

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


DESCRIPTION

The driver's door lock motor is built into the driver's door lock assembly.
The main body ECU RH controls the driver's door lock motor to lock/unlock the driver's door. This ECU applies current from terminal ACT+ to terminal ACTD 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


Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Lock Motor Circuit


INSPECTION PROCEDURE

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


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Lock Motor Circuit

  1. LHD Models:

    1. Remove the front door lock assembly LH.

    2. 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


  1. RHD Models:


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Lock Motor Circuit

    1. Remove the front door lock assembly RH.

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

      OK:
      Measurement Condition
      		Specified Condition
      Battery positive (+) → Terminal 2
      Battery negative (-) → Terminal 1 (*1)
      		Lock
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 2 (*1)
      		Unlock
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1 (*2)
      		Lock
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4 (*2)
      		Unlock
      *1: w/ Double locking system
      *2: w/o Double locking system


NG
REPLACE FRONT DOOR LOCK ASSEMBLY
OK


2.CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU RH)


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Lock Motor Circuit

  1. Disconnect the front door lock assembly connector.

  1. Disconnect the ECU (cowl side J/B RH) connector.

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

    Standard resistance:
    Tester Connection
    (Symbols)
    		Condition
    		Specified Condition
    M2-4 (L) - RJ-9 (*1)
    		Always
    		Below 1 Ω
    M2-3 (UL) - P1-4 (ACTD) (*1)
    		Always
    		Below 1 Ω
    L8-2 (L) - RJ-9 (*2)
    		Always
    		Below 1 Ω
    L8-1 (UL) - P1-4 (ACTD) (*2)
    		Always
    		Below 1 Ω
    L8-2 (L) - RJ-9 (*3)
    		Always
    		Below 1 Ω
    L8-1 (UL) - P1-4 (ACTD) (*3)
    		Always
    		Below 1 Ω
    RJ-9 - Body ground
    		Always
    		10 kΩ or higher
    P1-4 (ACTD) - Body ground
    		Always
    		10 kΩ or higher
    *1: LHD Models
    *2: RHD Models and w/ Double locking system
    *2: RHD Models and w/o Double locking system


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE