Siemens VDO DTCO 1381 Technical Description page 254

13.4 Messages and troubleshooting measures
DTCO 1381 display
Picto. AP Error text
1)
These warning messages will be displayed repetitively every hour until the cause is withdrawn.
2)
These warning messages are not saved in the date memory during calibration mode.
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MC Error code Meaning, cause and measures
4000000B78 CAN fault, message of the CAN controller status "Bus off".
Possible causes
•
•
•
Measures
– Check the function / configuration of the DTCO 1381,
– Check bus medium, use a CAN analysis tool if needed.
– Check the power supply (term. 30, 15, and 31) of the
– Check the timing behavior of the CAN participants at ter-
– Check cabling and pin assignment.
– Check whether a terminator is missing.
– Check whether any CAN participants on the bus have a
– Check bit structure.
Comment
Monitoring of this fault depends on the configuration of the
DTCO 1381:
•
•
The DTCO 1381 may not be the cause of the error.
© Siemens VDO Automotive AG
Faults in the bus medium
Fault in the physical layer
Protocol error
correct if necessary.
CAN participants.
minal 15 "on" or "off".
different baud rate.
Monitoring of this fault can be activated or deactivated
(CANEVCfg).
The fault can be suppressed for a certain period after
ignition "on" (ErrorManagementInitialisationInhibit).
Events and faults
1)
2)
Edition 07/2007