Internal fault in tachograph
* If the error message appears despite repetitive acknowledgement, replace the tachograph.
What you'll see
No driver-visible symptom recorded.
System reaction
MC01/EV000: * Warning message with error text: "Internal fault" together with Memory Code 01 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 * The warning message will be displayed repetitively every hour until the cause is withdrawn.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. MC02/EV001: * Warning message with error text: "Internal fault" together with Memory Code 02 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 * The warning message will be displayed repetitively every hour until the cause is withdrawn.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. MC03/EV002: * Warning message with error text: "Internal fault" together with Memory Code 03 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 * The warning message will be displayed repetitively every hour until the cause is withdrawn.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. MC05/EV004: * Warning message with error text: "Internal fault" together with Memory Code 05 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 * The warning message will be displayed repetitively every hour until the cause is withdrawn.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. MC07/EV006: * Warning message with error text: "Internal fault" together with Memory Code 07 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 * The warning message will be displayed repetitively every hour until the cause is withdrawn.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. Note: 1) These warning messages are not saved in the data memory during calibration mode.
Diagnostic depth
A generally serious fault is detected in the device.
MC1: * Undefined reset. MC2: * Unexpected program error. MC5: * Communication fault. MC7: * Security breach detected by a internal security controller