ROAD SIGN ASSIST SYSTEM, Diagnostic DTC:C1AA8, C1AA9

DTC Code DTC Name
C1AA8 Front Camera Module Incorrect Axial Gap
C1AA9 Front Camera Module Beam Axis Not Adjusted

DESCRIPTION

If the forward recognition camera detects that the forward recognition camera axis has deviated, DTC C1AA8 is stored. Also, if Forward Recognition Camera Axis Adjustment is not performed after installing the forward recognition camera, DTC C1AA9 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA8 Front Camera Module Incorrect Axial Gap 3 seconds after the ignition switch is ON, the forward recognition camera detects forward recognition camera axis deviation.
  • Forward recognition camera

  • Windshield glass

C1AA9 Front Camera Module Beam Axis Not Adjusted When the vehicle is being driven at a speed of 1 km/h (1 mph) or more 3 seconds after the ignition switch is turned to ON, the forward recognition camera detects that Forward Recognition Camera Axis Adjustment have not been completed. Forward recognition camera

CAUTION / NOTICE / HINT

Note


  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Axis Adjustment.

    Click here

PROCEDURE


  1. CHECK FOR DTCs (ROAD SIGN ASSIST SYSTEM)


    1. Check if the stored DTCs are current DTCs.

    2. Check for DTCs.

      Click here


      Body Electrical > Road Sign Assist > Trouble Codes
      Result
      Result Proceed to
      Current DTC C1AA8 is output A
      Current DTC C1AA9 is output B
      History DTC C1AA8 is output C

    B
    C
    A
  2. CHECK VEHICLE CONDITION


    1. Check the operating conditions of the vehicle.

      Tech Tips

      DTC C1AA8 may be stored if the forward recognition camera optical axis is temporarily misaligned due to the vehicle being overloaded.

      Result
      Result Proceed to
      Vehicle is not overloaded or being towed A
      Vehicle is overloaded or being towed B

    B
    A
  3. CHECK WHEEL ALIGNMENT


    1. Check the front wheel alignment (toe).

      Click here

      Tech Tips

      DTC C1AA8 may be stored if the forward recognition camera optical axis is misaligned due to incorrect wheel alignment (toe).

      Result
      Result Proceed to
      Front wheel is misaligned (toe) A
      Front wheel is not misaligned (toe) B

    B
    A
  4. ADJUST WHEEL ALIGNMENT


    1. Adjust the alignment (toe) of the wheels.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  5. PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS ADJUSTMENT


    1. Perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  6. CHECK FOR DTCs (ROAD SIGN ASSIST SYSTEM)


    1. Clear the DTCs.

      Click here


      Body Electrical > Road Sign Assist > Clear DTCs
    2. Make sure that the DTC detection conditions are met.

      Tech Tips

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

    3. Check for DTCs.

      Click here


      Body Electrical > Road Sign Assist > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA8 is not output A
      DTC C1AA8 is output B

    A
    B
  7. CHECK FORWARD RECOGNITION CAMERA INSTALLATION


    1. Check the installation condition of the forward recognition camera.

      Click here

      Tech Tips

      If the forward recognition camera bracket is deformed or misaligned, replace the windshield glass.

      OK
      No deformation or misalignment in the forward recognition camera bracket.
      Result
      Proceed to
      OK
      NG

    OK
    NG
  8. REPLACE WINDSHIELD GLASS


    1. Replace the windshield glass.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  9. PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS ADJUSTMENT


    1. Return the vehicle to normal operating conditions.

    2. Perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  10. CHECK FOR DTCs (ROAD SIGN ASSIST SYSTEM)


    1. Clear the DTCs.

      Click here


      Body Electrical > Road Sign Assist > Clear DTCs
    2. Make sure that the DTC detection conditions are met.

      Tech Tips

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

    3. Check for DTCs.

      Click here


      Body Electrical > Road Sign Assist > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA8 is not output A
      DTC C1AA8 is output B

    A
    B
  11. PERFORM FORWARD RECOGNITION CAMERA OPTICAL AXIS ADJUSTMENT


    1. Perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  12. CHECK FOR DTCs (ROAD SIGN ASSIST SYSTEM)


    1. Clear the DTCs.

      Click here


      Body Electrical > Road Sign Assist > Clear DTCs
    2. Make sure that the DTC detection conditions are met.

      Tech Tips

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

    3. Check for DTCs.

      Click here


      Body Electrical > Road Sign Assist > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA9 is not output A
      DTC C1AA9 is output B

    A
    B
  13. CLEAR DTCs


    1. Check for DTCs related to the forward recognition camera.

      Tech Tips

      If only history DTCs are stored, they may have been stored due to a temporarily condition such as overloading of the vehicle, and the system returned to normal when Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust was performed.

    2. Clear the DTCs.

      Click here


      Body Electrical > Road Sign Assist > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT