The main body ECU RH activates the wireless door lock buzzer when detecting a lock/unlock signal from the door control transmitter.

This function only equipped for Australia and New Zealand models.

Disconnect the P33 certification ECU connector and P31 door control receiver connector.

Lexus IS250 IS220d GSE20 ALE20 DOOR LOCK

Connect the intelligent tester to the DLC3.

Connect the intelligent tester to the DLC3.

The main body ECU RH controls the functions of the wireless door lock control system on the vehicle. Wireless door lock control system data can be read in the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the intelligent tester to check for a malfunction and perform repairs.

Disconnect the main body ECU RH (cowl side J/B RH) connectors.

Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit.

Lexus IS250 IS220d GSE20 ALE20 DOOR LOCK

The wireless door LOCK/UNLOCK function:

This wireless door lock control function operates only when the following 4 conditions are met: