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Home >> Toyota >> 2022 >> Avalon XLE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Dynamic Radar Cruise Control System - Diagnostic Codes & Circuit Tests (Hybrid)) >> DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model) >> DTC C1A0A: Front Radar Sensor Country Code Mismatch [04/2018 - 08/2021] >> Procedure

DTC C1A0A: Front Radar Sensor Country Code Mismatch [04/2018 - 08/2021]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR DTCs 
    1. Clear the DTCs.

      Powertrain > Radar Cruise2 > Clear DTCs 

    2. Make sure that the DTC detection conditions are met.

      HINT: 

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Powertrain > Radar Cruise2 > Trouble Codes 

      Result

      Result Proceed to
      DTC C1A0A is not output A
      DTC C1A0A is output B

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -] 

    Result: 

    See step  2

  2. REPLACE DRIVING SUPPORT ECU ASSEMBLY 
    1. Replace the driving support ECU assembly.

      Refer to REMOVAL [04/2018 - 08/2021]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK FOR DTCs 
    1. Clear the DTCs.

      Powertrain > Radar Cruise2 > Clear DTCs 

    2. Make sure that the DTC detection conditions are met.

      HINT: 

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Powertrain > Radar Cruise2 > Trouble Codes 

      Result

      Result Proceed to
      DTC C1A0A is not output A
      DTC C1A0A is output B

    Result: 

    END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE) 

    Result: 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to  COMPONENTS [04/2018 - 08/2021]