DTC    C1240    Yaw Rate Sensor Discrimination

for Preparation Click here


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

NOTICE:
  1. 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).
  2. When replacing the brake actuator assembly, perform zero point calibration (Click here).

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).

  1. 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)