I have been having problems with my 2001 chevy blazer 4wd. The transmission isnt shifting properly, speedometer not working and abs light on all at same time. it is an intermittant problem which appears to be more electrical then mechanical. i was told it could be a bad ignition switch. Someone suggested putting a test light on the fuse for the ignition switch module to see if it was getting power. However, in the diagram they provided which was from a 97 chevy blazer didnt seem to match my fuse cluster.. does anyone know which fuse is for the ignition module?