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ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1240

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DTC Code DTC Name
C1240 Yaw Rate Sensor Discrimination
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DESCRIPTION

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area Note
C1240 Yaw Rate Sensor Discrimination 321 The skid control ECU assembly identification information and the yaw rate sensor identification information sent by CAN communication differs for 1 second or more

  • Yaw rate sensor

  • Skid control ECU assembly

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CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU assembly or yaw rate sensor, perform initialization and calibration of the linear solenoid valve.

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PROCEDURE


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    CHECK PART NUMBER (YAW RATE SENSOR)


    1. Check that the proper yaw rate sensor is installed.

      OK
      Proper yaw rate sensor is installed.
      Result
      Proceed to
      OK
      NG

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    RECONFIRM DTC


    1. Clear the DTCs.

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      1. Chassis > ABS/VSC/TRC > Clear DTCs


    2. Turn the power switch off.

    3. Turn the power switch on (IG).

    4. Check if the same DTC is output.

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


      Result
      Result Proceed to
      DTC C1240 is not output. A
      DTC C1240 is output. B

    • A

      USE SIMULATION METHOD TO CHECKClick here

    • B

      REPLACE SKID CONTROL ECU ASSEMBLY for LHD:Click here

      REPLACE SKID CONTROL ECU ASSEMBLY for RHD:Click here