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You should get these codes flashed at you when you sit with the motor off, and the key in the 'ACC' position. You hold up the cruise control button until the codes start flashing at you - yellow for minor faults, red for major faults. Call any Freightliner/Sterling/Western Star dealership, or any diesel repair shop certified to work on Detroit Diesel motors, and they can tell you exactly what your fault codes mean.
Short to high voltage undocumented fault :
U codes are network/communication codes. I can not find any manufacturer using U0000 though.
End of message, no more codes, or no codes present.End of message, no more codes, or no codes present.
Fault 34 meant a battery disconnect had been performed at some point in the past. This fault is normally followed by fault 55 which stands for "end of fault codes"
I would recommend that you get a shop manual for this vehicle. It will tell you how to find the fault codes and what they mean.
it depends on the vehicle, some fault codes are manufacturer specific
ECU has registered a fault. Get the codes read to find out what it is.
To state the obvious, it means that there's something wrong with your ABS system - and this is something the DOT could put you out of service for. For further information, you'd need to get the fault codes from the ECM. How you go about doing this depends on what motor you have, but most are going to require that you hook up the diagnostic computer to it.
TO72 is a serial Data Link Fault. Cant help you with TO77 its not on my list of codes
Get the ecu codes read, there is a fault code listed in the engine ecu
D4 engine problem come out edu cercuit malfauntion?