Ford Pats (Passive Anti Theft System) Initialization With The 2534 Global Programmer

There are five types of PATS implementations from Ford (A, B, C, D, E). Refer to Table 1 (page 11) to identify what type of PATS your vehicle is equipped with. PATS initialization is generally performed after programming.
The A or D version of PATS does not store the key information in the PCM, therefore NO PATS KEY RELEARN IS REQUIRED after programming.
The B or C versions of PATS store the key information within the PCM and MUST be transferred to the new PCM, or relearned on the vehicle after the new PCM is installed.

What Do We Know About OBDII Now?

Illinois has been testing OBDII systems with pass fail criteria for about a year now, and we know much more about how the system works or does not work than we knew in January 2004. But first a quick review... A vehicle that is presented for an OBDII test will first receive a gas cap test and then be scanned through the DLC. The vast majority of the vehicles will in fact communicate via the DLC and most that will not are either missing B+ on pin 16 and/or ground on pin 5. If the vehicle will communicate via the DLC, a check of applicable readiness monitors will occur. If the correct number of monitors have been run, MIL function is analyzed and the vehicle passes or fails. This abbreviated explanation gives an overview of the test. More information is available in the Outreach OBDII seminars.