Sensor / Tachograph signature mismatch
1) Check cable harness. 2) Check for evidence of tampering. 3) Pair another motion sensor with the tachograph and check if it is working. 4) If the other motion sensor is working, replace the faulty motion sensor and perform a calibration of the tachograph system.
What you'll see
tbd
System reaction
* Event/Fault data 0x09 or 0x11 or 0x13 are stored in tachograph. * Warning displayed in the tachograph display. * System event in TCO1 CAN message is set to active. * Tachograph warning displayed in the instrument cluster.
Diagnostic depth
* Tachograph signature mismatch * An unsuccessful authentication attempt of the motion sensor have been detected * The identity of the motion sensor has changed while not authorized.
* Fault in cable harness. * Faulty motion sensor. * Motion sensor has been disconnected. * Tampering.