Western Star 4900EX 3477 SPN Fault Code

Name:

Aftertreatment 2 Failed to Ignite

Description:

Indicates that aftertreatment 2 has failed to ignite enough times to warrant triggering a diagnostic event. Note: Intended to be used with FMI 31 – condition exists. This SPN would indicate that aftertreatment 2 has been trying to ignite using the ignition system but has been unable to for an unknown reason. The ignition system, air system, or fuel system could be at fault.

Western Star 4900EX 3477 spn fault code name is Aftertreatment 2 Failed to Ignite. If you don't take the time to look into Western Star 4900EX 3477 spn fault when it arises, it can add up quickly. One small issue like Western Star 4900EX 3477 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 Western Star 4900EX 3477 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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