VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1442, C1443

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

DESCRIPTION

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

The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1442 Invalid Data Received from Acceleration Sensor With terminal IG1 voltage between 9.5 and 17.4 V, an invalid data signal is received from the acceleration sensor for 10 seconds or more. Acceleration sensor (airbag sensor assembly)
C1443 Invalid Data Received from Yaw Rate Sensor With terminal IG1 voltage between 9.5 and 17.4 V, an invalid data signal is received 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 and store system information.

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 and idle the engine 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
      Result Proceed to
      DTCs C1442 and C1443 are not output. A
      DTCs C1442 and/or C1443 are output. B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE AIRBAG SENSOR ASSEMBLY Click here