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Old 09-10-2017
blownjk  blownjk is offline
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On the 3.6's the alternator output is controlled by the PCM.
There is a table in the software for it.
Output is regulated versus battery temp not ambient temp.
As the battery gets hotter, charge voltage is lowered...

Originally Posted by MightyMouse View Post
No...... its a plain constant output unit. Controlled by the TIPM.

If your in doubt put a volt meter ( or OBD reader ) on it and go for a long drive - you'll see the voltage never falls below 14ish ....

Last edited by blownjk; 09-10-2017 at 12:59 PM.
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