I think all of the relays are the same. I know the A/C one can be bought at Radio Shack. The cover on the CCRM is riveted on, just drill the rivets out and look for a burnt relay. You could always remove the kick panel over the inertia switch and check the wires for voltage with the key on.
Before you do all of that, the corrosion can cause a bad connection, which will cause all sorts of strange electrical issues. The ground for the CCRM is actually in the wires on that little black box attached to the negitive cable. Remove the cables and use a wire brush (they make one for this purpose that can be bought at most any retail store) and clean them really good. Put the terminals back on and see if that fixes your issue.
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1998 Escort ZX2, T3 Super 60 at 8 psi, SCT Xcal2, Cobra MAF, 42#/hr injectors, MSD coil, Ford Racing wires, Ford Racing UDP, Fidanza flywheel, Spec 3 clutch, B&M shifter, Trubendz 2.5" exhaust, 19mm RSB, ES bushing kit, Eibach sportline springs, other goodies....
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