Theft Deterrent System Frequency Code Programming

This vehicle is equipped with a theft deterrent system which interfaces with the engine control module (ECM). If the ECM is replaced, Program the new ECM with the frequency code of the theft deterrent module that is currently on the vehicle. Refer to Programming Replacement keys, Ign Cyl, or ECM in Body and Accessories for the proper procedure. The vehicle will not start until this procedure is completed.