7515 SPN Fault Code

Name:

Request to Permit DEF Hydraulic Stiffness Check

Description:

A request to permit the DEF hydraulic stiffness check. The request continues to be broadcast until the stiffness check is finished or the corresponding permission status indicates an error.00b = no request 01b = request to permit DEF hydraulic stiffness check or stiffness check is running 10b = reserved 11b = don’t care The DEF hydraulic stiffness check is implemented in order to check for malfunctions and wear (damage) of the DEF dosing system and may be required by OBD legislation.

7515 spn fault code name is Request to Permit DEF Hydraulic Stiffness Check. If you don't take the time to look into 7515 spn fault when it arises, it can add up quickly. One small issue like 7515 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 7515 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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