Power Door Lock Control System Front Passenger Side Double 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 (DOUBLE LOCK MOTOR)

CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - DOUBLE DOOR LOCK ECU)

POWER DOOR LOCK CONTROL SYSTEM - Front Passenger Side Double Lock Motor Circuit


DESCRIPTION

The front passenger door double lock motor is built into the front passenger door lock assembly.
The double door lock ECU receives front passenger door double door lock set/release signals from the main body ECU RH using multiplex communication.
The double door lock ECU controls the double lock motor to set/release the double door lock. This ECU applies current from terminal ACTS to terminal ACTR to operate the motor to set the lock. It reverses the direction of the current to operate the motor to release the lock.

WIRING DIAGRAM


Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Front Passenger Side Double Lock Motor Circuit


INSPECTION PROCEDURE

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


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Front Passenger Side Double Lock Motor Circuit

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

    1. Apply battery voltage and set the door lock motor to the lock position.

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

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

      OK:
      Measurement Condition
      		Specified Condition
      Battery positive (+) →Terminal 4
      Battery negative (-) →Terminal 3
      		Double Locking System is set
      Battery positive (+) →Terminal 3
      Battery negative (-) →Terminal 4
      		Double Locking System is unset

    3. Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.

      OK:
      The doors cannot be unlocked.


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Front Passenger Side Double Lock Motor Circuit

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

    1. Apply battery voltage and set the door lock motor to the lock position.

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

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

      OK:
      Measurement Condition
      		Specified Condition
      Battery positive (+) →Terminal 2
      Battery negative (-) →Terminal 1
      		Double Locking System is set
      Battery positive (+) →Terminal 1
      Battery negative (-) →Terminal 2
      		Double Locking System is unset

    3. Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.

      OK:
      The doors cannot be unlocked.


NG
REPLACE FRONT DOOR LOCK ASSEMBLY
OK


2.CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - DOUBLE DOOR LOCK ECU)


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Front Passenger Side Double Lock Motor Circuit

  1. LHD Models:

    1. Disconnect the front door lock assembly RH connector.

    2. Disconnect the double door lock ECU connector.

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

      Standard resistance:
      Tester Connection
      (Symbols)
      		Condition
      		Specified Condition
      L8-4 (DL) - P34-3 (ACTS)
      		Always
      		Below 1 Ω
      L8-3 (UNDL) - P34-4 (ACTR)
      		Always
      		Below 1 Ω
      L8-4 (DL) - Body ground
      		Always
      		10 kΩ or higher
      L8-3 (UNDL) - Body ground
      		Always
      		10 kΩ or higher


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Front Passenger Side Double Lock Motor Circuit

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

    1. Disconnect the double door lock ECU connector.

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

      Standard resistance:
      Tester Connection
      (Symbols)
      		Condition
      		Specified Condition
      L8-2 (DL) - P34-3 (ACTS)
      		Always
      		Below 1 Ω
      L8-1 (UNDL) - P34-4 (ACTR)
      		Always
      		Below 1 Ω
      L8-2 (DL) - Body ground
      		Always
      		10 kΩ or higher
      L8-1 (UNDL) - Body ground
      		Always
      		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE