Toyota Yaris: Smart Key System (for Entry Function) / System Diagram

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Replace parts related to the wireless door lock and smart key system according to the inspection procedure. If the wireless door lock and smart key system does not operate, first check the customize item and make sure that the wireless door lock and smart key system is not turned off...

Operation Check

OPERATION CHECK CHECK CUSTOMIZE PARAMETERS NOTICE: The operation check below is based on the non-customized initial condition of the vehicle. Click here CHECK THE ENTRY UNLOCK FUNCTION (a) Check the entry unlock function (driver door, front passenger door)...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Back Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION If the entry lock and unlock functions do not operate for the back door only, the request code may not be being transmitted from the back door. If the entry functions for other doors operate properly, communication between the electrical key transmitter sub-assembly and the smart door control receiver assembly is normal...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Inspection

INSPECTION PROCEDURE 1. INSPECT HEADLIGHT LEVELING SWITCH (a) Check the voltage. (1) Connect a positive (+) lead from the auxiliary battery to terminal 5 (B) and a negative (-) lead to terminal 2 (E). *a Component without harness connected (Headlight Leveling Switch) (2) Measure the voltage according to the value(s) in the table below...