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How to Reset an Exhaust Fluid System Fault on a Ford Diesel Truck? (Step-by-Step)

Updated: Jan 8

Exhaust Fluid Systems (DEF) are designed to reduce emissions in diesel engines by breaking down harmful nitrogen oxides (NOx) into harmless water and nitrogen.


However, if there is a fault in the DEF system, it can cause problems with the engine and result in a warning light on the dashboard.


To reset an exhaust fluid system fault on a Ford diesel truck you can use an OBD scanner or you can disconnect the battery for a few minutes to reset the fault.


In this article, we will explain what causes DEF pump failure and how to reset an exhaust fluid system fault on a Ford diesel truck.

 

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