LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:C1A21

DTC Code DTC Name
C1A21 Object Recognition Camera

DESCRIPTION

When the driving support ECU receives information that there is a malfunction in the object recognition camera, DTC C1A20 is stored.

DTC Code DTC Detection Condition Trouble Area
C1A21 While the power switch is ON (IG), the driving support ECU receives a signal indicating a malfunction in the object recognition camera sensor for 1 second or more.

  • Object recognition camera

  • Object recognition ECU

  • Driving support ECU

INSPECTION PROCEDURE

PROCEDURE


  1. REPLACE OBJECT RECOGNITION CAMERA


    1. Replace the object recognition camera Click here.


    NEXT

  2. ADJUST OBJECT RECOGNITION CAMERA


    1. Adjust the object recognition camera Click here.


    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs Click here.

      Tech Tips

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


      1. Drive the vehicle at a 50 km/h (31 mph) or more, and operate lane-keeping assist system.

    2. Check for DTCs Click here.

      OK
      DTC C1A21 is not output.

    NG

    REPLACE OBJECT RECOGNITION ECU Click here

    OK

    END (OBJECT RECOGNITION CAMERA IS DEFECTIVE)

  4. REPLACE OBJECT RECOGNITION ECU


    1. Replace the object recognition ECU Click here.


    NEXT

  5. ADJUST OBJECT RECOGNITION CAMERA


    1. Adjust the object recognition camera Click here.


    NEXT

  6. CHECK FOR DTC


    1. Clear the DTCs Click here.

      Tech Tips

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


      1. Drive the vehicle at a 50 km/h (31 mph) or more, and operate lane-keeping assist system.

    2. Check for DTCs Click here.

      OK
      DTC C1A21 is not output.

    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    END (OBJECT RECOGNITION ECU IS DEFECTIVE)