VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1442, C1443

DTC Code DTC Name
C1442 Invalid Data Received from Deceleration Sensor
C1443 Invalid Data Received from Yaw Rate Sensor

DESCRIPTION

The airbag sensor assembly has a built-in yaw rate and acceleration sensor.

The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1442 Invalid Data Received from Acceleration Sensor

Both of the following is condition is met.


  1. With the IG1 terminal voltage between 9.5 and 17.4 V.

  2. An invalid data signal is transmitted continuously from the acceleration sensor for 10 seconds or more.

 Acceleration sensor (Airbag sensor assembly)
C1443 Invalid Data Received from Yaw Rate Sensor

Both of the following is condition is met.


  1. With the IG1 terminal voltage between 9.5 and 17.4 V.

  2. An invalid data signal is transmitted continuously from the yaw rate sensor for 10 seconds or more.

 Yaw rate sensor (Airbag sensor assembly)

CAUTION / NOTICE / HINT

Note


  • When replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform zero point calibration.

    Click here

  • When replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform acceleration sensor zero point calibration and CVT oil pressure calibration (for continuously variable transaxle).

    K111: Click here

    K111F: Click here

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Clear DTCs

    2. Turn the ignition switch off.

    3. Start the engine and idle it for 60 seconds, and then stop the engine.

    4. Check if the same DTC is output.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Proceed to
      DTCs C1442 and/or C1443 are output
      DTCs C1442 and C1443 are not output

    DTCs C1442 and/or C1443 are output

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    DTCs C1442 and C1443 are not output

    USE SIMULATION METHOD TO CHECK Click here