GMC Sierra 2500HD 4171 SPN Fault Code

Name:

Auxiliary I/O Channel #22

Description:

Identifies the current value of auxiliary input/output channels that are configured uniquely per application.

GMC Sierra 2500HD 4171 spn fault code name is Auxiliary I/O Channel #22. If you don't take the time to look into GMC Sierra 2500HD 4171 spn fault when it arises, it can add up quickly. One small issue like GMC Sierra 2500HD 4171 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 GMC Sierra 2500HD 4171 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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