DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Wireless Door Lock Control System - Diagnostic Codes & Symptom Tests >> Wireless Door Lock Control System >> DTC B1242-96: Wireless Door Lock Tuner Component Internal Failure [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.
  • Before replacing the certification ECU (smart key ECU assembly), refer to Registration.

    For HV Model: Refer to REGISTRATION [11/2023 - ]

    For Gasoline Model: Refer to REGISTRATION [11/2023 - ]

  • When replacing or inspecting the electrical key and tire pressure monitoring system receiver assembly and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the electrical key and tire pressure monitoring system receiver assembly, the performance of the entry function and wireless function may be affected.
  • The detection conditions of this DTC cannot be met within 10 seconds of the ignition switch being turned from off to ON or ON to off.
  • Make sure that there are no electrical key transmitter sub-assemblies in the vehicle.
  • When replacing the electrical key and tire pressure monitoring system receiver assembly, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal.

    Refer to REGISTRATION [11/2023 - 11/2024] , or refer to REGISTRATION [11/2024 - ]

  • If the electrical key and tire pressure monitoring system receiver assembly has been replaced, it is necessary to perform initialization. (Refer to INSTALLATION [11/2023 - ] ) after registration. (Refer to REGISTRATION [11/2023 - 11/2024] , or refer to REGISTRATION [11/2024 - ] ) of the transmitter IDs to the electrical key and tire pressure monitoring system receiver assembly.