DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Front Radar Sensor System - Diagnostic Codes >> Front Radar Sensor System >> DTC C1A8C-46: Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure; DTC C1A8D-1C: Power Supply Circuit in Front Radar Sensor Circuit Voltage Out of Range; DTC C1A90-00: Malfunction of Millimeter-wave Circuit in Front Radar Sensor; DTC C1A91-00: Malfunction of Acceleration Sensor in Front Radar Sensor [12/2019 - 09/2020] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
  • When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly adjustment and front radar acceleration sensor calibration, and to clear the vehicle control history.

    Refer to ADJUSTMENT [12/2019 - 09/2020]

Diesel-Data.com