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

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

DTC Code INF Code DTC Detection Condition Trouble Area
C1442 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. Acceleration sensor (Airbag ECU assembly)
C1443 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 sensor (Airbag ECU assembly)

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

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

      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 Click here

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here