VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1240

DTC Code DTC Name
C1240 Yaw Rate Sensor Discrimination

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
C1240 The yaw rate and acceleration sensor identification information stored in the skid control ECU is not consistent with the yaw rate and acceleration sensor identification information sent via CAN communication continuously for 1 second or more. Yaw rate and acceleration sensor

INSPECTION PROCEDURE

Note


  • When replacing the yaw rate and deceleration sensor, perform the following procedures:

    For the VSC system, clear and then reobtain the zero point calibration Click here.

    For the CVT system, perform "Reset Memory", "Deceleration Sensor 0 Point Calibration", and "CVT Oil Pressure Calibration" (for K41A Click here, for K41B Click here.

  • When replacing the brake actuator assembly, perform zero point calibration Click here.

PROCEDURE


  1. CHECK PART NUMBER (YAW RATE AND ACCELERATION SENSOR)


    1. Check that the part number of the installed yaw rate and acceleration sensor is correct Click here.

      OK
      Yaw rate and acceleration sensor installed in the vehicle has the correct part number.

    NG

    REPLACE YAW RATE AND ACCELERATION SENSOR Click here

    OK

  2. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Check if the same DTC is recorded Click here.

      Result
      Result Proceed to
      DTC (C1240) is not output A
      DTC (C1240) is output B

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here