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- - Alternator? (https://www.ft86club.com/forums/showthread.php?t=155528)

icemang17

08-26-2025 04:08 PM

Alternator?

2025 BRZ

Today at about 250 miles total I noticed the alt output dropped to just over 12v while driving in town. Before it was always 14v. Now it drops to around 12, rises to like 13 and varies between 12-14.

Is this normal, is it just reacting to a fully charged battery?

bcj	08-27-2025 10:15 AM

Yup. They put in a battery conditioning circuit for '17-on.

Is alternator output load dependant ???

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