DTC    C1442    Invalid Data Received from Acceleration Sensor

DTC    C1443    Invalid Data Received from Yaw Rate Sensor

for Preparation Click here


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
DTC Detection Condition
Trouble Area
C1442
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
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

NOTICE:
When replacing the yaw rate and acceleration sensor, perform zero point calibration (Click here).
1.CHECK DTC

  1. Clear the DTCs (Click here).

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

  1. 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

    HINT:
    If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).


B
CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (Click here)
A

REPLACE YAW RATE AND ACCELERATION SENSOR (Click here)