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 via the CAN communication system.

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

DTC Code INF Code DTC Detection Condition Trouble Area
C1442/44 322 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
C1443/34 340 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

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Turn the power switch on (READY).

    3. Run the engine for 60 seconds, and then turn the power switch off.

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

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

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

    REPLACE YAW RATE AND ACCELERATION SENSOR Click here