Good Alternator not supplying charge

[4Runner conversion]

There is no charge going back to the battery at all. Alternator is good, regulator is good, 7.5 amp ignition fuse is good...(Battery is good too of course) WTF?! Is there a relay? Fusable link off neg terminal still okay, Is there anything I've missed. Could something else cause this?

 

[Smitty]

the connection to the dashboard light is good da?

 

[Coast_Calais]

Is the volt sens for the regulator connected at the battery end?

Had same symptoms as you until I checked the wiring diagram and found a little brown wire all by itself.. "awww herrrooo"
Back to positive post for you!
Regulator gets a signal and 14+ V suddenly decides to rock up..