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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Restraints >> Seat Belts >> Pre-Collision System - Diagnostic Codes & Circuit Tests - (Hybrid) >> Pre-Collision System >> DTC C1A0A: Front Radar Sensor Region Code Mismatch [02/2014 - 11/2016] >> Procedure

DTC C1A0A: Front Radar Sensor Region Code Mismatch [02/2014 - 11/2016]: Procedure

  1. CHECK FOR DTC (PRE-COLLISION 2) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [02/2014 - 11/2016]

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

      HINT: 

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

    5. Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
    6. Check for DTCs.

      Body Electrical > Pre-Collision 2 > Trouble Codes 

      Result

      Result Proceed to
      DTC C1A0A is output A
      DTC C1A0A and other DTCs are output B
    7. Turn the power switch off.

    Result:  2

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [02/2014 - 11/2016] 

    Result:  1

    See step  2

  2. REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY 
    1. Replace the millimeter wave radar sensor assembly.

      Refer to REMOVAL [02/2014 - 11/2016]

    NEXT 

  3. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY 
    1. Perform millimeter wave radar sensor assembly adjustment.

      Refer to ADJUSTMENT [02/2014 - 11/2016]

    NEXT 

  4. CHECK FOR DTC (PRE-COLLISION 2) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [02/2014 - 11/2016]

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

      HINT: 

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

    5. Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
    6. Check for DTCs.

      Body Electrical > Pre-Collision 2 > Trouble Codes 

      Result

      Result Proceed to
      DTC C1A0A is not output A
      DTC C1A0A is output B
    7. Turn the power switch off.

    Result:  1

    END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE) 

    Result:  2

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVING SUPPORT ECU ASSEMBLY. Refer to  COMPONENTS [02/2014 - 11/2016]