Sensor / Tachograph signature mismatch
â–¶ How to fix
Check sensor cable. Check sensor. Check tachograph (input B4). Use a test device to pair the sensor with the tachograph. Replace any defective components.Check sealing of the sensor to the transmission.
What you'll see
Display "security breach"
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
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Possible cause
Data security fault. Internal sensor error, the motion sensor indicates an error in the data integrity. Internal sensor error, authentication error. The motion sensor indicates an error during authentication. Three times in a row an authentication error is detected during standard communication. Error during the pairing procedure.Unknown serial number; Error during comparison of the serial numbers of the motion sensor.