PRE-CRASH SAFETY 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 object recognition ECU has an internal malfunction.

DTC Code DTC Detection Condition Trouble Area
C1A20

  1. Diagnosis condition for each system:


    • Pre-crash system:


      • Power switch ON (IG)


    • Radar cruise control system:


      • Vehicle is being driven at speed of approximately 50 km/h (31 mph) or more and distance control switch is on

    • Lane keeping assist system:


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

  2. Driving support ECU detects problem with object recognition ECU transmission signal

  • Object recognition ECU

  • Driving support ECU

PROCEDURE


  1. REPLACE OBJECT RECOGNITION ECU


    1. Replace the object recognition ECU Click here.


    NEXT

  2. ADJUST OBJECT RECOGNITION CAMERA


    1. Adjust the object recognition camera Click here.


    NEXT

  3. CHECK FOR DTC


    1. Clear DTCs Click here.

    2. Make sure the following conditions are met:


      • Pre-crash system:

        The power switch ON (IG).

      • Radar cruise control system:

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

      • Lane keeping assist system:

        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.

      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.


    OK

    END

    NG

    REPLACE DRIVING SUPPORT ECU Click here