4901 SPN Fault Code


Special Ignitor Loop 74 � Resistance


Resistance of Special Ignitor Loop 74. Since there are many different vehicle types (e.g. truck, bus, firetruck or ambulance), the ignitor loop configuration has a wide variation.

4901 spn fault code name is Special Ignitor Loop 74 � Resistance. If you don't take the time to look into 4901 spn fault when it arises, it can add up quickly. One small issue like 4901 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 4901 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.

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SPNFMI Faults and Engine error code check tool. SPN code listing with names and descriptions.

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