Smart access system with push-button start data and the Diagnostic Trouble Codes (DTCs) 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 malfunctions and perform repairs.

Disconnect the P33 ECU connector.

Lexus IS250 IS220d GSE20 ALE20 DOOR LOCK

Lexus IS250 IS220d GSE20 ALE20 DOOR LOCK

To change the vehicle to entry unlock mode switching function, make sure the vehicle power is off and simultaneously press and hold the electrical key's LOCK switch and another electrical key switch for 5 seconds.

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

In addition to conventional mechanical key and wireless door lock control functions, the entry and start system enables door locking / unlocking, steering lock releasing, engine starting and luggage compartment door opening without operating the electrical key. The only requirement is that the electrical key is in the user's possession.

Lexus IS250 IS220d GSE20 ALE20 DOOR LOCK

Lexus IS250 IS220d GSE20 ALE20 DOOR LOCK

When troubleshooting the entry and start system using the intelligent tester with the engine switch off, connect the intelligent tester to the vehicle and repeat turning any of the courtesy light switches on and off until communication between the tester and the vehicle begins (the interval between ON and OFF should be less than 1.5 seconds).