Can the PCM make a new alternator go bad?

2003 MAZDA 6
154,000 MILES
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GMAN316
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I replaced the alternator twice. After I replaced it the first time I had it checked and it was bad. So I replaced it again and the charging system light is still on and the problem is still occuring the same exact way it was before. Also just put a brand new battery in when I replaced this alternator. The problem happened as I was test driving it around the block. So my question is can the PCM cause the alternator to go bad or did i just get another bad alternator or is there some other problem?
Jul 11, 2012 at 2:39 PM
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DOCFIXIT
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PCM would not normally make ALT fail BUT PCM does regulate ALT output so PCM could keep ALT from working
Jul 11, 2012 at 2:45 PM
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GMAN316
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So should I take it to see if the PCM is bad or just replace the alternator again?
Jul 11, 2012 at 2:55 PM
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DOCFIXIT
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remove ALT from car have tested if good then PCM at fault or wiring
Jul 11, 2012 at 2:59 PM