Subaru Impreza Alternator bearing change and cleaned up. Tested 14.2 volts and Smart Pin tested OK.

I`m quite happy as my home made Smart Alternator Tester Kit worked. You increase the duty cycle to increase the Alternator output voltage. Disconnect the C wire to the Alternator and it works as a normal 14.2 volt Alternator. Might help out if you want to use a normal cheap battery, charging a caravan or having charging problems from the ECU. I`ll share the Smart Tester I made in the comments when I get chance or search my vids.

[@ChrisPopham]

A few words here in the comments to help the RUclips algorithms 😜

[@damianbutterworth2434]

This is how to make a Smart Alternator Tester Square Wave Generator for about £20.
ruclips.net/video/y0A5s5m1_AY/видео.html