EX works well with Gen1 Expy's (1999-2002), and less well with 1997/8 Gen1's. With Gen2 Expeditions (such as yours, e.g. 2003-2006) Ford very much changed the communication networks. Gen1's used low and MS (Middle Speed) CAN, and that allowed OBDII, IC, PCM, ABS, GEM to be read...