Power Door Lock Control System Rear Door Lock Motor Lh Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT REAR DOOR LOCK ASSEMBLY

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

POWER DOOR LOCK CONTROL SYSTEM - Rear Door Lock Motor LH Circuit


DESCRIPTION

The rear left side door lock motor is built into the rear left side door lock assembly.
The main body ECU RH controls the rear left side door lock motor to lock/unlock the rear left side 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


Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Rear Door Lock Motor Lh Circuit


INSPECTION PROCEDURE

1.INSPECT REAR DOOR LOCK ASSEMBLY


  1. Remove the rear door lock assembly LH.


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Rear Door Lock Motor Lh Circuit

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

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


NG
REPLACE REAR DOOR LOCK ASSEMBLY
OK


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


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Power Door Lock Control System Rear Door Lock Motor Lh Circuit

  1. Disconnect the rear door lock assembly LH 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
    O8-4 (L) - RJ-9 (*1)
    		Always
    		Below 1 Ω
    O8-2 (L) - RJ-9 (*2)
    		Always
    		Below 1 Ω
    O8-1 (UL) - RD-24
    		Always
    		Below 1 Ω
    RJ-9 - Body ground
    		Always
    		10 kΩ or higher
    RD-24 - Body ground
    		Always
    		10 kΩ or higher
    *1: w/ Double locking system
    *2: w/o Double locking system


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE