Power & Ground Circuits
WARNING: This page is about a different car, the 1995 Mazda B4000, 1995 Mazda B3000, and 1995 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Locate control module (left/rear of engine compartment). Using a DVOM, backprobe appropriate power and ground circuits. See appropriate PIN VOLTAGE CHARTS article for terminal specification. If power and ground circuits are open or have excessive resistance, clean or repair circuit. See appropriate WIRING DIAGRAMS article. PCM chassis ground point is at left/front of engine compartment.