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So, you think that the brown wire (brn/wht on mine) should have 24v at the relay with the key on. Makes sense coming from the brown wire off the alternator. Which way does the electricity flow? From the alt 2 to the dash relay? Thats what it looks like the way the diode is drawn. I guess that...

when i said the light glows i meant dimly glows with 3.5v, not brightly as with 24v.

wire test numbers wire off on pnk/blk 0 11.2 brn/red 24.6 24.2 brn/wht 0 0 blkl 0 (good ground) 2 plug alt key off brn 0 red 12.4 front bat, 24.8 rear bat, 24.8 grd big red wire key off...

wire off on pnk/blk 0 11.2 brn/red 24.6 24.2 brn/wht 0 0 blkl 0 (good ground) 2 plug alt key off brn 0 red 12.4 front bat, 24.8 rear bat, 24.8 grd big red wire key off -12.4 front bat...

Well, if everything is testing good at the on the truck (brown, red wires at the plug) it must be the alt even it was tested and put out power at the shop. I just ordered the bridge rectifier and the other parts from CUCV Electrics. I will put them in and try again.

That is soemthing I thought about. Replacing what is left inside. I this case I can't get the light to come on. If I ground the brown/red wire on the gen 2 relay the gen 2 light will come on. Does that mean I have a bad ground? Where should I look? The relay ground (black wire) is good. If I...

thanks will, I replaced the rotor too because I had a winding that was shorting to ground. I replaced the diode trio too because I had it ordered already. The alt was tested afterward and it charged well. Can I switch the alternators from left to right and see what happens? The bulbs are...

I have been fighting the gen 2 light all day. Thought I had a bad diode trio but it tested good when I pulled the alternator apart. What didn't test good was the rotor windings so i got a new one and put it in along with the new diode trio i already had. The local starter/alternator repair...