VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1442 and C1443

DTC Code	DTC Name
C1442	Invalid Data Received from Deceleration Sensor
C1443	Invalid Data Received from Yaw Rate Sensor

DESCRIPTION

The airbag sensor assembly has a built-in yaw rate and acceleration sensor.

The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1442	Invalid Data Received from Acceleration Sensor	Both of the following is condition is met. 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 (Airbag sensor assembly)
C1443	Invalid Data Received from Yaw Rate Sensor	Both of the following is condition is met. 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 (Airbag sensor assembly)

CAUTION / NOTICE / HINT

Note:

When replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform zero point calibration.
Click here
When replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform acceleration sensor zero point calibration and CVT oil pressure calibration (for continuously variable transaxle).
K111:Click here
K111F:Click here
K114F:Click here

PROCEDURE

CHECK DTC

Clear the DTCs.
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Turn the ignition switch off.
Start the engine and idle it for 60 seconds, and then stop the engine.
Check if the same DTC is output.
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Chassis > ABS/VSC/TRC > Clear DTCs

Chassis > ABS/VSC/TRC > Trouble Codes

Result


Proceed to
DTCs C1442 and/or C1443 are output
DTCs C1442 and C1443 are not output

DTCs C1442 and/or C1443 are output

REPLACE AIRBAG SENSOR ASSEMBLY

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DTCs C1442 and C1443 are not output

USE SIMULATION METHOD TO CHECK

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