FreightlinerSpn 677 Fmi 4 DTC Code

Engine Starter Relay Circuit Failed Low

Engine Starter Relay Circuit Failed Low: Engine Starter Motor Relay Voltage Below Normal, Or Shorted To Low Source; Voltage Below Normal, Or Shorted To Low Source

Short Circuit To Ground Error

Starter Relay High Side Short Circuit To Ground

Starter Relay Low Side Short Circuit To Ground

Freightliner SPN 677 FMI 4 problem code is about Starter Relay Low Side Short Circuit To Ground. If you don't take the time to look into Spn 677 Fmi 4 engine problem when it arises, it can add up quickly. One small issue like Spn 677 Fmi 4 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: This description 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.

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WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.

WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.

WARNING: HOT EXHAUST
During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if directed at combustible materials. The vehicle must be parked outside.