4185 SPN Fault Code

Name:

Overspeed Shutdown Relay Driver

Description:

The Overspeed Shutdown relay driver drives the overspeed shutdown lamp to indicate the engine has reached overspeed. This SPN is to indicate faults with the overspeed shutdown relay driver circuit.

4185 spn fault code name is Overspeed Shutdown Relay Driver. If you don't take the time to look into 4185 spn fault when it arises, it can add up quickly. One small issue like 4185 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 4185 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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