The distributorless ignition system used by 1995–98 3.0L, 1994–98 2.3L, 2.5L and 4.0L B Series Pick-up and Navajo engines are referred to as the Electronic Distributorless Ignition System (EDIS). It eliminates the conventional distributor by utilizing multiple ignition coils instead. The EDIS consists of the following components:
NOTE: The function of the ICM was incorporated into the PCM beginning with the EEC-V system; otherwise the newer system operates in the same manner.