My car will not start. Plenty of power, horn blows, lights work, all but the engine light when i turn the key to the on position. The book tells me I have no power to the pcm but i do have 12 volts on some of the pins and 5 volts on others, 0 volts on some. How can be for sure that the pcm has crapped out, it looks great or is there a way to fix the pcm myself. had a loose battery connection and car wouldn't start, shook cable and started car, got home and tightened battery cable (+ side), worked fine for about a week and now nothing when i turn key, going to check out switch on clutch pedal, just thought of that! Help is appreciated.

check the "chime" fuse.. lol

no joke tho, last week, mine wouldnt even turn over.. i bought new starters, wires, everything.. turns out it was the stock saturn security system being engaged and not letting my start, all because the "chime" fuse was blown.

if not, check EVERY fuse.. and i mean EVERY one.. under the hood, and on the passenger side.. it never hurts