Sensor power supply low
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. 5) If no error found and error remains despite repetitive acknowledgement, replace the tachograph and pair the motions sensor with the tachograph and perform a new calibration of the tachograph system.
What you'll see
tbd
System reaction
* Pop-up displayed in the tachograph display. * System event in TCO1 CAN message is set to active. * Tachograph warning displayed in the instrument cluster.
Diagnostic depth
Motion sensor power supply below 6,5 V for more than 4 seconds.
* Fault in tachograph cable harness. * Fault in motion sensor cable harness. * Internal fault in tachograph.