5400 SPN Fault Code

Name:

SCR Thermal Management Active

Description:

Indicates that the exhaust temperatures have been elevated for regeneration of the SCR aftertreatment system or in preparation of regeneration of the SCR aftertreatment system.00b = SCR Thermal Management is not active 01b = SCR Thermal Management is active 10b = Reserved 11b = Don’t care

5400 spn fault code name is SCR Thermal Management Active. If you don't take the time to look into 5400 spn fault when it arises, it can add up quickly. One small issue like 5400 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 5400 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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SPNFMI Faults and Engine error code check tool. SPN code listing with names and descriptions.

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