Toyota Yaris: Smart Key System (for Entry Function) / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System (for Entry Function) / 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.
The wireless door lock and smart key system primarily uses the following systems.
- Power door lock system
- Wireless door lock system
- Smart key system (for Entry Function)
- Smart key system (for Start Function)
  - : Steering lock function
  - : Immobiliser function
Perform troubleshooting procedures with other registered keys if available.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

(a) Confirm how vehicle was brought to workshop

Vehicle was driven
Vehicle was towed

HINT:

The malfunction location may be narrowed down by confirming whether the vehicle was driven or towed.

GO TO SMART KEY SYSTEM (for Start Function)

Parts Location

PARTS LOCATION ILLUSTRATION *1 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH *2 FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH *3 BACK DOOR OPENER SWITCH ASSEMBLY *4 OPEN SWITCH *5 LOCK SWITCH *6 BACK DOOR LOCK ASSEMBLY WITH COURTESY LIGHT SWITCH *7 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH *8 FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH ILLUSTRATION *1 FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH - ELECTRICAL KEY ANTENNA - LOCK SENSOR - UNLOCK SENSOR *2 SMART DOOR CONTROL RECEIVER ASSEMBLY *3 ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE COMPARTMENT) *4 NO...

System Diagram

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Other information:

Toyota Yaris XP210 (2020-2025) Owner's Manual: Immobilizer System

The immobilizer system allows the engine to start only with a key the system recognizes. If someone attempts to start the engine with an unrecognized key, the engine will not start, thereby helping to prevent vehicle theft. If you have a problem with the immobilizer system or the key, consult your Toyota dealer...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Terminals Of Ecu

TERMINALS OF ECU AIRBAG SENSOR ASSEMBLY Terminal No. Terminal Symbol Destination O24-1 ICR+ Curtain shield airbag assembly RH O24-2 ICR- O24-3 PR- Front seat outer belt assembly RH O24-4 PR+ O24-5 PL+ Front seat outer belt assembly LH O24-6 PL- O24-7 ICL- Curtain shield airbag assembly LH O24-8 ICL+ O24-9 SFR+ Front seat airbag assembly RH O24-10 SFR- O24-15 SFL- Front seat airbag assembly LH O24-16 SFL+ O24-19 BCR- No...