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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (For Entry) - Symptom Tests (2 Of 2) >> SMART KEY SYSTEM (for Entry Function) >> Front Passenger Side Door Entry Unlock Function does not Operate [11/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • When using the GTS with the ignition switch off, perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins, and then select the vehicle model manually.

    Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Smart Key. While using the GTS, periodically perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • The smart key system (for Entry Function) uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

  • Before replacing the certification ECU (smart key ECU assembly), refer to Precaution.

    Refer to PRECAUTION [11/2023 - ]

  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.
  • After repair, confirm that no DTCs are output.
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