Code : Spn 9004 Fmi 6
J1-e3,e4: Blower Speed 1 Short Circuit
Spn 9004 Fmi 6 problem code is about J1-e3,e4: Blower Speed 1 Short Circuit. If you don't take the time to look into Spn 9004 Fmi 6 engine problem when it arises, it can add up quickly. One small issue like Spn 9004 Fmi 6 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.
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