Dtc C1442 Invalid Data Received From Acceleration Sensor


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 (brake actuator assembly) receives signals from the yaw rate sensor via the CAN communication system.
The yaw rate sensor assembly has a built-in acceleration sensor and detects the vehicle condition.

DTC Code
DTC Detection Condition
Trouble Area
C1442
With the IG1 terminal voltage between 9.5 and 17.4 V, an invalid data signal is transmitted continuously from the acceleration sensor for 10 seconds or more.
Acceleration sensor (Yaw rate sensor assembly)
C1443
With the IG1 terminal voltage between 9.5 and 17.4 V, an invalid data signal is transmitted continuously from the yaw rate sensor for 10 seconds or more.
Yaw rate sensor assembly

INSPECTION PROCEDURE

NOTICE:
After replacing the yaw rate sensor assembly, perform calibration (Toyota Fortuner RM000000XHR06WX.html).
1.CHECK DTC

  1. Clear the DTCs (Toyota Fortuner RM000000XHV0C7X.html).

  1. Turn the ignition switch off.

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

  1. Check if the same DTC is output (Toyota Fortuner RM000000XHV0C7X.html).

    Result
    Result
    		Proceed to
    DTC is output
    		A
    DTC is not output
    		B



B
USE SIMULATION METHOD TO CHECK (Toyota Fortuner RM0000012Q9013X.html)
A

REPLACE YAW RATE SENSOR ASSEMBLY (Toyota Fortuner RM000000SS5045X.html)