VAC-CON V309LHA 9174 spn fault code name is Engine Protection Derate Override Status.
If you don't take the time to look into VAC-CON V309LHA 9174 spn fault when it arises, it can add up quickly.
One small issue like VAC-CON V309LHA 9174 can cause a larger component to become damaged without taking the
time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those
small components to save money down the road.
Note: The name and description of VAC-CON V309LHA 9174 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.