5549 SPN Fault Code

Name:

Engine Cold Start Fuel Igniter Relay

Description:

The engine cold start fuel igniter relay control command. This command controls the relay, not the igniter. 00b = Off 01b = On 10b = Reserved 11b = Don’t care/take no action

5549 spn fault code name is Engine Cold Start Fuel Igniter Relay. If you don't take the time to look into 5549 spn fault when it arises, it can add up quickly. One small issue like 5549 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 5549 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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