Driving without card
* Check if a valid driver or workshop card is in card slot 1 and insert a valid card if necessary. * Check if a company card or control card is inserted in the card slot and eject the card if necessary.
What you'll see
No driver-visible symptom recorded.
System reaction
MC28/EV403: * Warning message with error text: "driving without card" together with Memory Code 28 is shown in the tachograph display. * Event warning message with error text: "power interruption" together with Memory Code 19 is shown in the tachograph display. * The warning message will be displayed repetitively every hour until the cause is withdrawn. * Event stored in the tachograph memory * Event stored and in the inserted tachograph card. * System event in TCO1 CAN message is set to active. * Tachograph warning (amber T) is displayed in the instrument cluster.
Diagnostic depth
Driving without a valid card in slot one.
* Driving without a driver or workshop card in card slot 1 * Driving with invalid driver or workshop card in slot 1 * Driving with invalid card combination in card slot 1 and 2.