Sensor power supply high
â–¶ How to fix
1) Check cable harness. 2) Check for evidence of tampering. 3) Check power supply levels to the motion sensor. 4) Replace the tachograph and pair the motion sensor with the tachograph and perform a new calibration of the tachograph system.
What you'll see
tbd
System reaction
* Event/Fault data 0x31 is stored in the 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
Detection
Power supply to motion sensor above 10 V for more than 4 seconds.
Possible cause
* Internal fault in tachograph. * Fault in tachograph cable harness. * Fault in motion sensor cable harness.