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Home >> Lexus >> 2017 >> ES 300h >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC C1A0A: Front Radar Sensor Region Code Mismatch [07/2015 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.
  • When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed. Refer to ADJUSTMENT [07/2015 - ]
  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ]
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