LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:C1A21

DTC Code DTC Name
C1A21 Object Recognition Camera

DESCRIPTION

The driving support ECU detects a malfunction in the object recognition camera sensor, DTC C1A21 is output.

DTC Code DTC Detection Condition Trouble Area
C1A21 While engine switch is on (IG), object recognition camera sensor malfunction signal is sent to driving support ECU for 1 second or more

  • Object recognition camera sensor

  • Object recognition ECU

  • Driving support ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK OBJECT RECOGNITION CAMERA SENSOR


    1. Temporarily replace the object recognition camera sensor with a new or normally functioning one Click here.

    2. Perform the object recognition camera sensor beam axis adjustment Click here.

    3. Clear the DTC Click here.

    4. Recheck for DTC Click here.

      OK
      DTC C1A21 is not output.

    NG

    CHECK OBJECT RECOGNITION ECU Click here

    OK

    END (OBJECT RECOGNITION CAMERA SENSOR IS DEFECTIVE)

  2. CHECK OBJECT RECOGNITION ECU


    1. Temporarily replace the object recognition ECU with a new or normally functioning one Click here.

    2. Perform the object recognition camera sensor beam axis adjustment Click here.

    3. Clear the DTC Click here.

    4. Recheck for DTC Click here.

      OK
      DTC C1A21 is not output.

    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    END (OBJECT RECOGNITION ECU IS DEFECTIVE)