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

DTC Code DTC Name
C1442/44 Invalid Data Received from Deceleration 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 Information 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 sensor, perform zero point calibration Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

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

    3. Check if the same DTC is output 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 SENSOR Click here