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Alternator connector pinout needed

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Old Aug 29, 2015 | 07:44 PM
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westend
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Alternator connector pinout needed

I am installing a replacement alternator and the 3 pin connector is different than the original. My 2003 F-250 has a three pin connector but only two pins are used. Wire schedule is one red/blue and one green/red. The new connector is marked with "A", "I", and "S". I guess I only need to know which original wire is ignition and which is battery +.
TIA
 
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Old Aug 30, 2015 | 06:30 AM
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No one knows?
 
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Old Aug 30, 2015 | 08:29 AM
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https://www.ford-trucks.com/forums/233948-wiring-diagram-for-new-style-ford-alternator.html
 
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