4439 SPN Fault Code

Name:

Aftertreatment 2 Diesel Exhaust Fluid Quick Thaw Heater Preliminary FMI

Description:

Used to identify the applicable J1939-73 FMI detected for the heater of the diesel exhaust fluid quick thaw tank for aftertreatment system 2 (exhaust bank 2), as detected by the manufacturer�s control software. In the case of multiple failures the most severe is communicated.A value of 31 is sent to indicate that no failure has been detected or this parameter is not supported.

4439 spn fault code name is Aftertreatment 2 Diesel Exhaust Fluid Quick Thaw Heater Preliminary FMI. If you don't take the time to look into 4439 spn fault when it arises, it can add up quickly. One small issue like 4439 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 4439 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.

4439 SPN Fault Code

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