FORWARD RECOGNITION CAMERA SYSTEM, Diagnostic DTC:C1AA8

DTC Code DTC Name
C1AA8 Front Camera Module Incorrect Axial Gap

DESCRIPTION

If it is determined that the optical axis of the forward recognition camera has deviated, DTC C1AA8 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA8 Front Camera Module Incorrect Axial Gap After the ignition switch is turned to ON for 3 seconds or more and the forward recognition camera detects forward recognition camera axis deviated.

  • Forward recognition camera

  • Windshield glass

  • Wheel alignment

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 adjustment.

    Click here

  • When replacing the windshield glass of a vehicle equipped with a forward recognition camera, make sure to use a Toyota genuine part. If a non-Toyota genuine part is used, the forward recognition camera may not be able to be installed due to a missing bracket or the forward recognition camera may not operate properly due to a difference in the transmissivity or black ceramic border.

  • Forward recognition camera optical axis may deviate if the vehicle is driven on a banked road, such as a racetrack. This deviation can be corrected by driving the vehicle on a normal road for a while.

  • Forward recognition camera optical axis may deviate when the vehicle is overloaded or the wheel alignment (toe-in) is incorrect. The forward recognition camera optical axis can be corrected by decreasing the load on the vehicle or adjusting the toe-in.

PROCEDURE


  1. CHECK VEHICLE OPERATING CONDITION


    1. Check the operating conditions of the vehicle.

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

    B

    PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT Click here

    A

  2. CHECK WHEEL ALIGNMENT


    1. Check the front and rear wheel alignment (toe).


      Result
      Result Proceed to
      Front or rear wheel is misaligned (toe) A
      Front and rear wheels are not misaligned (toe) B

    B

    CHECK FORWARD RECOGNITION CAMERA INSTALLATION Click here

    A

  3. ADJUST WHEEL ALIGNMENT


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


      Result
      Proceed to
      NEXT

    NEXT

  4. PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT


    1. Perform forward recognition camera adjustment.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.


      Chassis > Front Recognition Camera > Clear DTCs

    2. Perform the following procedure.

      Tech Tips

      If the following procedure is not performed, the previously output DTC cannot be detected.


      1. Turn the ignition switch to ON and wait 3 seconds or more.

    3. Check for DTCs.


      Chassis > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA8 is not output A
      DTC C1AA8 is output B

    A

    END

    B

    REPLACE FORWARD RECOGNITION CAMERA Click here

  6. CHECK FORWARD RECOGNITION CAMERA INSTALLATION


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

      Click here

      Tech Tips

      If there is a malfunction with the installation condition of the forward recognition camera, replace the windshield glass.

      OK
      No deformation or deviation in forward recognition camera installation bracket.
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 4 Click here

    NG

  7. REPLACE WINDSHIELD GLASS


    1. Replace the windshield glass.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 4 Click here

  8. PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT


    1. Return the vehicle to normal.

    2. Perform forward recognition camera adjustment.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  9. CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.


      Chassis > Front Recognition Camera > Clear DTCs

    2. Perform the following procedure.

      Tech Tips

      If the following procedure is not performed, the previously output DTC cannot be detected.


      1. Turn the ignition switch to ON and wait 3 seconds or more.

    3. Check for DTCs.


      Chassis > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA8 is not output A
      DTC C1AA8 is output B

    A

    END

    B

  10. CHECK WHEEL ALIGNMENT


    1. Check the front and rear wheel alignment (toe).


      Result
      Result Proceed to
      Front or rear wheel is misaligned (toe) A
      Front and rear wheels are not misaligned (toe) B

    A

    GO TO STEP 3 Click here

    B

  11. CHECK FORWARD RECOGNITION CAMERA INSTALLATION


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

      Click here

      Tech Tips

      If there is a malfunction with the installation condition of the forward recognition camera, replace the windshield glass.

      OK
      No deformation or deviation in forward recognition camera installation bracket.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FORWARD RECOGNITION CAMERA Click here

    NG

  12. REPLACE WINDSHIELD GLASS


    1. Replace the windshield glass.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 4 Click here