ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1240/95

DTC Code DTC Name
C1240/95 Yaw Rate Sensor Discrimination

DESCRIPTION

The skid control ECU determines if the yaw rate sensor identification information sent via CAN communication matches the yaw rate sensor identification information memorized by the skid control ECU.

DTC Code Information Code DTC Detection Condition Trouble Area
C1240/95 321 The yaw rate sensor identification information memorized by the skid control ECU does not match the yaw rate sensor identification information sent via CAN communication for 1 second or more.

  • Proper yaw rate sensor not installed

  • Skid control ECU

INSPECTION PROCEDURE

Note


  • When replacing the yaw rate sensor, perform zero point calibration Click here.

  • When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Click here.

PROCEDURE


  1. CHECK PART NUMBER (YAW RATE SENSOR)


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

      OK
      Proper yaw rate sensor installed.

    NG

    REPLACE YAW RATE SENSOR Click here

    OK

  2. RECONFIRM DTC


    1. Clear the DTC Click here.

    2. Turn the power switch ON (IG).

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

      Result
      Result Proceed to
      DTC C1240/95 output for LHD A
      DTC C1240/95 output for RHD B
      DTC not output C

    B

    REPLACE SKID CONTROL ECU Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

    REPLACE SKID CONTROL ECU Click here