Code : Spn 171 Fmi 4

Ambient Air Temperature Circuit Failed Low

Ambient Temperature Circuit Failed Low

Ambient Temperature Circuit Failed Low: Ambient Air Temperature Voltage Below Normal, Or Shorted To Low Source; Dm1 From Cpc Contains Spn 171 Fmi 4

Outside Air Temp Sensor Voltage Low

Sensor Error Scr-system Environment Temperature Dpf-system Air Inlet Temperature, Signal Range Check Low

Spn 171 Fmi 4 problem code is about Sensor Error Scr-system Environment Temperature Dpf-system Air Inlet Temperature, Signal Range Check Low. If you don't take the time to look into Spn 171 Fmi 4 engine problem when it arises, it can add up quickly. One small issue like Spn 171 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.

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.

Code : Spn 171 Fmi 4

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