7579 SPN Fault Code

Name:

Elevated Engine Speed Allowed Switch

Description:

Indicates the state of a switch to indicate the control system is permitted to automatically elevate the engine speed as needed for strategies such as cold mode, aftertreatment regeneration, etc. This is not a direct command to increase the engine speed but rather an acknowledgement by the operator that the speed could be increased automatically, such as in response to an indication to the operator from SPN 7502. However, SPN 7502 is not the only method that could request this behavior. Therefore, SPN 7502 is not required in order to use this SPN.00b = Not allowed to elevate engine speed 01b = Allowed to elevate engine speed 10b = Error 11b = Not Available

7579 spn fault code name is Elevated Engine Speed Allowed Switch. If you don't take the time to look into 7579 spn fault when it arises, it can add up quickly. One small issue like 7579 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 7579 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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