Mid 128, Sid 231; Communication Fault J 1939 - Volvo TAD650VE Workshop Manual

Diagnostic Trouble Codes
126

MID 128, SID 231

Communication fault J 1939

MID 128: Engine control unit
MID 144: DCU/CIU
FMI 2: Intermittent or faulty data.
FMI Fault code explanation
2 Communication fault J 1939
Fault indication
DCU: Engine warning in DCU display.
CIU: Flash code
Flash code
Electrical fault: 6.5 (EMS)
Value fault: None (EMS)
Electrical fault: 6.4 (CIU)
Value fault: None (CIU)
Symptom
Engine can not be started or if engine is running it can
only be stopped by pushing the aux-stop.
Group 30: Electrical system