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Dual Alternator Setup

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Old Sep 1, 2013 | 11:57 AM
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Dual Alternator Setup

Anyone know how to test the dual alternator setup, I think i may have an alternator going out but with the dual setup, how do i test them? All my dual alternator people out there, help me out maybe?
 
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Old Sep 1, 2013 | 12:27 PM
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The best way would be to remove each one and have them both load tested.

Otherwise you would need to back probe the "I" circuit to verify the PCM has that particular alternator selected and then probe the charging stud for voltage.

Then repeat for the other alternator.

Josh
 
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