Regulator Terminals - What Do They Mean? - Professional ...Explore further
2016-11-25u2002·u2002F1/F2: (Field 1/Field 2) This type of connection is used on alternators without an internal regulator.The regulator is normally a separate unit or can be built into the vehicle ECU. C: (Computer Controlled) This terminal is an input signal from the ECU which controls the charge rate. This signal will tell the alternator when to stop/start charging.
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