Okay, here we go. The method descibed is ONLY for bypassing the PATS system, which does do a full algorithmic check of the TI RFID chip, which both the DCX and FOrd systems use. But then cripples it by only sending the "start enable" signal through the use of a resistance signal, as noted.3. GM's PASSlock II, FORD's SecuriLock, CHRYSLER’s SentryKey, and TOYOTA's Engine Immobilizer - These factory-installed antitheft systems consist of a miniature transponder imbedded in the ignition key head itself, which allows the vehicle's computer to identify the "real ignition key" and thereby enable the vehicle to start. Recently, a national automotive magazine published information on how to bypass these systems. All a thief has to do is cut the black wire in the three-wire ribbon cable located under the dash and measure the resistance between the black wire and the yellow starter wire with a volt meter. They then touch the two wires with the matching resistor and the vehicle will start. This sounds complicated, but only takes about 20 seconds to defeat. Also, there is a company that manufactures a product called the "No Key Required Bypass Kit", which bypasses the transponder key system in any vehicle made. A salesman might tell you that because of these factory-installed systems, you do not need any extra security for your vehicle, but this is NOT TRUE! Many vehicles equipped with these systems have been stolen.