Code : Spn 3509 Fmi 3

5 Volt Sensor Supply #1 Voltage High

5v Sensor Supply Bank 1 Circuit Failed High

5v Sensor Supply Bank 1 Circuit Failed High: Sensor Supply Voltage 1 Voltage Above Normal, Or Shorted To High Source; 5v Battery Voltage Bank 1 Too High

Acm Sensor Supply 1 Short To Battery

Sensor Reference Voltage "a" Circuit High (p0643 )

Spn 3509 Fmi 3 problem code is about Sensor Reference Voltage "a" Circuit High (p0643 ). If you don't take the time to look into Spn 3509 Fmi 3 engine problem when it arises, it can add up quickly. One small issue like Spn 3509 Fmi 3 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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