ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1442/44, C1443/34

DTC Code DTC Name
C1442/44 Invalid Data Received from Acceleration Sensor
C1443/34 Invalid Data Received from Yaw Rate Sensor

DESCRIPTION

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

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

DTC No. INF Code DTC Detection Condition Trouble Area
C1442/44 572 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. Yaw rate and acceleration sensor (Airbag sensor assembly)
C1443/34 715 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 and acceleration sensor (Airbag sensor assembly)

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTCs C1442/44 and C1443/34 are not output. A
      DTCs C1442/44 and/or C1443/34 are output. B

    B

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here