Click here

FORWARD RECOGNITION CAMERA SYSTEM, Diagnostic DTC:C1AA3

Click here
Click here
DTC Code DTC Name
C1AA3 Vehicle Speed Sensor Circuit
Click here

DESCRIPTION

The forward recognition camera receives vehicle speed signals from the skid control ECU (brake actuator assembly). If the skid control ECU (brake actuator assembly) receives a vehicle speed sensor malfunction signal, it informs the forward recognition camera via CAN communication, and DTC C1AA3 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA3 Vehicle Speed Sensor Circuit After the ignition switch is turned to ON for 3 seconds or more, a signal from the skid control ECU (brake actuator assembly) indicating a malfunction in a vehicle speed sensor is detected by the forward recognition camera for 5 seconds or more.

  • Vehicle stability control system

  • Forward recognition camera
Click here

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

  • The forward recognition camera system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.

    Click here

Click here

PROCEDURE


  1. Click here

    CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)

    Tip:

    If DTC C1AA3 is stored, the vehicle stability control system may be malfunctioning. Check for DTCs related to the vehicle stability control system first.


    1. Check for DTCs.


      1. Chassis > ABS/VSC/TRC > Trouble Codes


      Result
      Result Proceed to
      Vehicle stability control system DTCs are not output A
      Vehicle stability control system DTCs are output B

  2. Click here

    CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.


      1. Chassis > Front Recognition Camera > Clear DTCs


    2. Perform the following procedure.

      Tip:

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


      1. Turn the ignition switch to ON and wait 8 seconds or more.

    3. Check for DTCs.


      1. Chassis > Front Recognition Camera > Trouble Codes


      Result
      Result Proceed to
      DTC C1AA3 is not output A
      DTC C1AA3 is output B