J1939 Communication Bus - Volvo TAD650VE Workshop Manual

Group 30: Electrical system
CAN H-datalink to engine
B51
CAN L-datalink to engine
B55
Power supply
Power supply input
Ignition
A58
Stop
A27
J1708A-datalink to engine
A34
J1708B-datalink to engine
A33
MID 128, PSID 201

J1939 communication bus

MID 128: Engine control unit
FMI 9: Abnormal updating rate.
FMI Fault code explanation
9 Communication error
Fault indication
DCU: Engine warning in DCU display.
CIU: None
Flash code
Electrical fault: None
Value fault: None
Symptom
None
Component description
Diagnostic Trouble Codes
141