Posts Tagged: immobilizer no start

How an Auto Immobilizer Anti-theft SystemWorks

Auto Immobilizer Explained: Modern Vehicle Theft Protection Quick Summary Modern vehicles use an auto immobilizer system that consists of a transponder key and an antenna coil/exciter ring mounted on the lock cylinder. Once powered by the exciter ring, the key transmits a digital code to an antenna, which is then checked by the ECM and Body Control Module. If the code is correct, the system will allow the engine start. If not, it will prevent engine cranking or will allow the engine to crank, but won’t allow the fuel injectors … Read More