LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:C1A20

DTC Code DTC Name
C1A20 Object Recognition ECU

DESCRIPTION

This DTC is stored when the driving support ECU receives information that the lane recognition camera sensor assembly has an internal malfunction.

DTC Code DTC Detection Condition Trouble Area
C1A20

The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the lane keeping assist main switch is on


  • When the conditions above are met, the driving support ECU detects a problem in the signal sent from the lane recognition camera sensor assembly.

  • Lane recognition camera sensor assembly

  • Driving support ECU

INSPECTION PROCEDURE

PROCEDURE


  1. REPLACE LANE RECOGNITION CAMERA SENSOR ASSEMBLY


    1. Replace the lane recognition camera sensor assembly Click here.


    NEXT

  2. ADJUST LANE RECOGNITION CAMERA SENSOR ASSEMBLY


    1. Adjust the lane recognition camera sensor assembly Click here.


    NEXT

  3. CHECK FOR DTC


    1. Clear DTCs Click here.

    2. Make sure the following conditions are met:

      Tech Tips

      The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the lane keeping assist main switch is on.

    3. Check for DTCs Click here.

      OK
      DTC C1A20 is not output.

      Note

      When replacing the driving support ECU, always replace it with a new one and be sure to perform initialization Click here. If an ECU which was installed to another vehicle is used, the information stored in the ECU will not match the information from the vehicle, and as a result, a DTC may be stored.


    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    END (LANE RECOGNITION CAMERA SENSOR ASSEMBLY IS DEFECTIVE)