5491 SPN Fault Code

Name:

Aftertreatment 1 Diesel Exhaust Fluid Line Heater Relay 1

Description:

The Aftertreatment Diesel Exhaust Fluid Line Heater Relay 1 is used to energize one or more DEF line heaters.00b = Off 01b = On 10b = Error 11b = Not available

5491 spn fault code name is Aftertreatment 1 Diesel Exhaust Fluid Line Heater Relay 1. If you don't take the time to look into 5491 spn fault when it arises, it can add up quickly. One small issue like 5491 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 5491 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.

5491 SPN Fault Code

Name:

Description:

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