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Home >> Toyota >> 2019 >> RAV4 LE, FWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes >> Pre-Collision System >> DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [12/2021 - ] >> Caution / Notice / Hint
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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 beam axis alignment and to clear the vehicle control history. Before performing the Driving Adjustment, make sure to read Before Starting Driving Adjustment.

    HINT: 

    Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.

    Triangle Target: Refer to TARGET ADJUSTMENT (TRIANGLE TARGET) [12/2021 - ]

    Flat Surface Target: Refer to TARGET ADJUSTMENT (FLAT SURFACE TARGET) [12/2021 - ]

    Driving Adjustment: Refer to DRIVING ADJUSTMENT [12/2021 - ]

  • for HV Model:

    Before replacing the hybrid vehicle control ECU assembly, refer to smart key system (for Start Function) Precaution.

  • for Gasoline Model:

    Before replacing the ECM, refer to smart key system (for Start Function) Precaution.