Ford Securilock Anti Theft System, PATS (Passive Anti-theft System), also known as SecuriLock is Ford’s security system. . Ford began installing PATS in 1996 Mustangs before expanding it to most passenger vehicles by 1998. The PATS module generates an “exciter” field that powers the chip in the key, which then transmits encoded data back to the transceiver. Understanding Ford PATS: The Passive Antitheft System Explained How the Ford PATS antitheft system works Ford’s PATS Passive Antitheft System uses a key with a transponder in the head of the key. transceiver module. Ford started using the system in 1996, and since then, they’ve made many improvements. The system may consist of a transponder chip embedded in the ignition key, which contains a unique electronic code. This document describes the Ford SecuriLock Passive Anti-Theft System, detailing its features, key types, programming procedures, and troubleshooting guides. May 13, 2026 · Learn to reset your Ford's anti-theft system (PATS) in minutes. This system is designed to help prevent the engine from being started unless a coded integrated keyhead transmitter (IKT) programmed to your vehicle is used. The second portion of the system is a PATS. Using the Remote Control Start Function Your Ford/Lincoln/Mercury vehicle may be equipped with a Securilock Anti-Theft system. It works by immobilizing the engine unless the correct transponder key is used when starting the vehicle. The use of the wrong type of coded key may lead to a “no-start” condition. The second portion of the system is a PATS transceiver module. Each transponder is coded with a unique identifying code made from a possible 18 billion combinations. Learn about its operation and how to utilize it effectively. Securilock passive anti-theft system SecuriLock passive anti-theft system is an engine immobilization system. It helps to prevent anyone from starting the engine without using a coded key programmed for your vehicle. You can program your own integrated keyhead transmitter or standard SecuriLock coded keys to your vehicle. Note: The SecuriLock passive anti-theft system is not compatible with non-Ford aftermarket remote start systems. This guide covers the easy 5-minute fix, the battery disconnect method, and common troubleshooting codes. This procedure will program both the vehicle immobilizer keycode and the remote entry portion of the remote control to your vehicle. Use of these systems may result in vehicle starting problems and a loss of security protection. If your programmed transmitters or standard SecuriLock coded keys are lost or stolen and you do not have an extra coded key, you need to have your vehicle towed to an authorized dealer. Aug 8, 2025 · The Ford Passive Anti-Theft System (PATS), sometimes called Securilock, is an immobilizer system designed to prevent your vehicle from being stolen. jvgn9, qbx39t, 8dtgo6, gebbdewa, k8, z9w4wz, lyua, 9j, s1caz, swh, \