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 ECU 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 ECU assembly) via the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
C1442 Invalid Data Received from Acceleration Sensor When voltage at terminal +BS is 9.5 to 17.4 V, sensor invalid information received from acceleration sensor is ON continuously for 10 seconds or more. Acceleration sensor (airbag ECU assembly) -
C1443 Invalid Data Received from Yaw Rate Sensor When voltage at terminal +BS is 9.5 to 17.4 V, sensor invalid information received from yaw rate sensor is ON continuously for 10 seconds or more. Yaw rate sensor (airbag ECU assembly) -

CAUTION / NOTICE / HINT

Note

When replacing the yaw rate and acceleration sensor (airbag ECU 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 engine switch off.

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

    4. Check if the same DTC is recorded.

      Click here


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

    A

    REPLACE AIRBAG ECU ASSEMBLY w/ Navigation System: Click here
    REPLACE AIRBAG ECU ASSEMBLY w/o Navigation System: Click here

    B

    USE SIMULATION METHOD TO CHECK Click here