Dtc C1442 Invalid Data Received From Acceleration Sensor

Brake. Land Cruiser. Urj200, 202 Grj200 Vdj200
Brake Control Dynamic Control Systems. Land Cruiser. Urj200, 202 Grj200 Vdj200

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 (master cylinder solenoid) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system.
The yaw rate and acceleration sensor (airbag sensor assembly) has a built-in acceleration sensor.

DTC Code
DTC Detection Condition
Trouble Area
C1442
An invalid data signal is transmitted continuously from the acceleration sensor for 10 seconds or more.
Yaw rate and acceleration sensor (Airbag sensor assembly)
C1443
An invalid data signal is transmitted continuously from the yaw rate sensor for 10 seconds or more.
Yaw rate and acceleration sensor (Airbag sensor assembly)

INSPECTION PROCEDURE

NOTICE:
After replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform calibration (Click here).
1.CHECK DTC

  1. Clear the DTCs (Click here).

  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 (Click here).

    Result
    Result
    		Proceed to
    DTC C1442 or C1443 is output
    		A
    CAN communication system DTC is output
    		B
    DTC is not output
    		C

    HINT:
    For the CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING), refer to the following:
    1. for LHD (with Central Gateway ECU): Click here
    2. for LHD (without Central Gateway ECU): Click here
    3. for RHD (with Central Gateway ECU): Click here
    4. for RHD (without Central Gateway ECU): Click here


B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

C
CHECK FOR INTERMITTENT PROBLEMS (Click here)
A

REPLACE AIRBAG SENSOR ASSEMBLY (Click here)