4442 SPN Fault Code

Name:

Aftertreatment 2 Diesel Exhaust Fluid Dosing Unit 1 Diverter Valve

Description:

Command to the valve which determines whether the diesel exhaust fluid of dosing unit 1 is delivered to the injector or is routed back to the diesel exhaust fluid tank. Zero directs all diesel exhaust fluid flow to the injector, 100% sends all diesel exhaust fluid back to the tank.

4442 spn fault code name is Aftertreatment 2 Diesel Exhaust Fluid Dosing Unit 1 Diverter Valve. If you don't take the time to look into 4442 spn fault when it arises, it can add up quickly. One small issue like 4442 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 4442 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.

4442 SPN Fault Code

Name:

Description:

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