LKA/LDA SYSTEM, Diagnostic DTC:C1A48

DTC Code DTC Name
C1A48 G Sensor

DESCRIPTION

The forward recognition camera receives G sensor signals from the acceleration sensor (yaw rate sensor) via CAN communication.

If the forward recognition camera receives a G sensor malfunction signal from the acceleration sensor (yaw rate sensor), DTC C1A48 is stored.

DTC No. DTC Detection Condition Trouble Area
C1A48 2 seconds after the power switch is turned on (IG), a signal from the acceleration sensor (yaw rate sensor) indicating that there is a G sensor malfunction is detected by the forward recognition camera for 5 seconds or more

  • Electronically controlled brake system

  • Acceleration sensor (yaw rate sensor)

  • 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 learning Click here.

  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting.


PROCEDURE


  1. CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

    Tech Tips

    If the acceleration sensor (yaw rate sensor) is malfunctioning, DTCs for the electronically controlled brake system will be stored. Troubleshoot the electronically controlled brake system first.


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      Electronically controlled brake system DTCs are not output A
      Electronically controlled brake system DTCs are output B

    B

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here

    A

  2. CHECK DTC OUTPUT (LKA/LDA SYSTEM)


    1. Clear the DTCs Click here.

    2. Make sure that the DTC detection conditions are met.

      Tech Tips

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


      1. Turn the power switch on (IG) and wait 7 seconds or more.

    3. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1A48 is output A
      DTC C1A48 is not output B

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  3. REPLACE ACCELERATION SENSOR (YAW RATE SENSOR)


    1. Replace the acceleration sensor (yaw rate sensor) Click here.


    NEXT

  4. CHECK DTC OUTPUT (LKA/LDA SYSTEM)


    1. Clear the DTCs Click here.

    2. Make sure that the DTC detection conditions are met.

      Tech Tips

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


      1. Turn the power switch on (IG) and wait 7 seconds or more.

    3. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1A48 is output A
      DTC C1A48 is not output B

    A

    REPLACE FORWARD RECOGNITION CAMERA Click here

    B

    END (ACCELERATION SENSOR [YAW RATE SENSOR] WAS DEFECTIVE)