Using 104-Pin Breakout Box
WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect PCM connector. Connect 104-pin Breakout Box (49 UN01 130) to PCM. Turn ignition on. Measure voltage between ground at 104-pin breakout box terminal No. 30 (on 6-cylinder) or 64 (on 4-cylinder) while depressing clutch pedal. If battery voltage is present, clutch position circuit is okay and testing is completed. If battery voltage is not present check switch continuity. If switch is okay, repair clutch switch circuit. See WIRING DIAGRAMS .