Have 1996 LT with ABS lamp on steady... Because of GM architecture Autoenguity with GM expansion can not read ABS system (nor can most other scan tools) on 1996 & 1997 models. There are a very few scan tools that can communicate with 96 & 97 ABS... All of them are very expensive $600.00 plus... Basicly you need a GM (Vertronix) Tech 1 or Tech 1A scan tool plus cartrages, if you can find any, same prices for Snap-On.
So my question can a 1996 ECM be swaped electricly for a 1998??.
Thanks

 

You should search this site,but from what I've read here and elsewhere,I believe there was a harness change from 97 to 98,not only with ABS but other components as well.