Tachograph power supply interruption
1) Check vehicle power supply levels. 2) Check power supply input to tachograph. 3) Check cable harness and tachograph operation. 4) Replace defective components. 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
* Event/Fault data 0x08 is stored in the tachograph. * Warning displayed in the tachograph display.
Diagnostic depth
Power supply to the tachograph above 37V or below 6.5V (< 8,5V ADR) for more than 200 ms. Cranking voltage should not cause this event. The event is not generated in calibration mode.
* Power interruption. * Over voltage. * Under voltage. * Fault in cable harness.