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DTC C1A11-00: Front Radar Sensor Optical Axis Misalignment Malfunction [10/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus LS 500. However, it is still accessible from the selected car via links, so may be relevant.
  1. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY 
    1. Perform millimeter wave radar sensor assembly beam axis 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) [10/2023 - ]

      Flat Surface Target: Refer to TARGET ADJUSTMENT (FLAT SURFACE TARGET) [10/2023 - ]

      Driving Adjustment: Refer to DRIVING ADJUSTMENT [10/2023 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Front Radar Sensor > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK FOR DTCs 

    Pre-procedure1

    1. Turn the ignition switch off.
    2. Turn the ignition switch to ON.
    3. Make sure that the DTC detection conditions are met.

      HINT: 

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

      Procedure1

    4. Check for DTCs.

      Body Electrical > Front Radar Sensor > Trouble Codes 

      Result

      Result Proceed to
      C1A11-00 is not output A
      C1A11-00 is output B

      Post-procedure1

    5. None

    Result: 

    END 

    Result: 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to  REMOVAL [10/2023 - ]