When jumped, the light DID go awayI would not expect it to go out because the battery light typically works from the L terminal of the alternator/regulator. This is one of the 4 wires going to the connector and looks at one of the phase outputs to sense rotation/output. By the way, the 06 should be a C,Fr,Ig,L which has a voltage reduction mode only when the C terminal is pulled low. This is for torque management that shuts down the alternator when the vehicle needs maximum torque, i.e. full throttle. Also, the in-store testers are really only good enough to tell if the unit is completely dead or not so you could have worn brushes that simply can't make good contact at higher speeds.
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