189 SPN Fault Code

Name:

Engine Rated Speed

Description:

The maximum governed rotational velocity of the engine crankshaft under full load conditions. Note that the engine speed at point 2 (SPN 528) is equal to rated engine speed only in the case when the engine has not been derated. Please also reference PGN 65251.

189 spn fault code name is Engine Rated Speed. If you don't take the time to look into 189 spn fault when it arises, it can add up quickly. One small issue like 189 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 189 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.

189 SPN Fault Code

Name:

Description:

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