Dtc C1442 Invalid Data Received From Acceleration Sensor

Brake. Yaris. Ncp93, 131
Brake Control Dynamic Control Systems. Yaris. Ncp93, 131

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 (YARIS_NCP93 RM000000XHR06QX.html).
1.CHECK DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0BQX.html).

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

  1. Check if the same DTC is recorded (YARIS_NCP93 RM000000XHV0BQX.html).

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



B
USE SIMULATION METHOD TO CHECK (YARIS_NCP93 RM000000XHP0BCX.html)
A

REPLACE YAW RATE AND ACCELERATION SENSOR (YARIS_NCP93 RM000001BYV012X.html)