Dtc C1442 Invalid Data Received From Acceleration Sensor

Brake. Corolla. Zre142 Aze141
Brake Control Dynamic Control Systems. Corolla. Zre142 Aze141

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC

DTC C1442 Invalid Data Received from Acceleration Sensor

DTC C1443 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
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 (COROLLA_ZRE142 RM000000XHR08KX.html).
1.CHECK DTC

  1. Clear the DTCs (COROLLA_ZRE142 RM000000XHV0F2X.html).

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

  1. Check if the same DTC is recorded (COROLLA_ZRE142 RM000000XHV0F2X.html).

    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 (COROLLA_ZRE142 RM000000XHN0DUX.html).


B
CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (COROLLA_ZRE142 RM000000XHP0EKX.html)
A

REPLACE YAW RATE AND ACCELERATION SENSOR (COROLLA_ZRE142 RM000003D8S00IX.html)