It only receives signals from sensors and modules. In either of the above systems the DME is passive. In other words, you cant smash the window and hot wire the car because the DME has killed the ignition and fuel systems.ĮWS-I, E36 1/94-12/94 = same as above but added a starter immobilization relay and transmission position switch. If the door was locked with the key (or factory alarm) the car will not start without the doors unlocked with the factory key or entering the code into the OBC. Depending on your project and the level of functionality you plan to retain, the OBC and OBC relay may remain in the car and could lead to no-start problems if not wired correctly.ĮWS, E36 9/93-12/93 = links the door lock switch to the DME and OBC. If the OBC code was entered (or the OBC relay failed) power to the DME was stopped (no ignition). OBC Immobilizer, many 87-92 = the OBC and DME are linked. A summary of BMW's immobilizer systems 1987-1999 (covers mostly E36 applications).
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