If you are a car locksmith, a fleet manager, or a DIY owner of a late-90s to mid-2000s Ford or Mazda vehicle, you have likely encountered the frustrating "Engine Immobiliser Active" message on your dashboard. In many cases, the solution lies in a specialized security process involving an Outcode and an Incode .
This article provides a deep dive into the , explaining what it is, how it works, which vehicles it supports, and how to use it safely and legally. What is an Outcode and an Incode? Before using any calculator, you must understand the underlying security mechanism. Ford (and Mazda, during their partnership era) used a PATS (Passive Anti-Theft System) immobilizer on many vehicles.