OBD Vehicle Protection

An article on how to prevent tampering with vehicle immobilizer systems through the OBD-II diagnostic connector. Vehicle immobilisers are fitted as standard to modern cars and heavy goods vehicles. Anti- theft mechanisms have become more sophis- ticated but so have the methods employed by crooks. Nowadays once the thief has gained access to a vehicle they will most likely use an electronic deactivation tool which seeks to disable the immobiliser, once this has been accomplished a blank transponder key/card can be used to start the engine.