Volvo TAD734GE Repair Manual

Diagnostic Trouble Codes Group 30: Electrical system
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.

Volvo TAD734GE Specifications

General

Engine Model	TAD734GE
Cooling System	Liquid-cooled
Displacement	7.15 liters
Bore x Stroke	108 x 130 mm
Aspiration	Turbocharged
Fuel System	Electronic Unit Injectors (EUI)
Engine Speed	1500 rpm
Emission Level	EU Stage II
Engine Type	4-stroke, 6-cylinder in-line diesel engine