I just installed a 120 amp alternator, I installed 5 ga. cable from the alternator to the fuse box. I also installed a 5 ga. cable from the other side of the fuse to the battery, also installed a 120 amp fuse in place of the 80 amp.
I hooked evey thing back up and I have no power to the inside of the cab (dash lights, starter clock). Ther is power to the fuse panel in ds kick panel because theres a relay clicking when I turn the key.
The head lamps work the hazard lights work. I checked all the fuses in the kick panel and uder the hood all seem good.
Its an 88 4 runner and was working fine before the swap except for the batt and charge lamp staying on which is why I replaced the alternator.
Any help would be greatly appreciated.
Thanks

 

Never mind I got it.

 

what was it?

 

dead battery?

 

Aparently there is something in the stock harness that is needed for the cab to have power. I wired up the stock charge wire and walah, power.
As soon as I get more time ill figure out what I missed and go back with the 5 ga. cable.

 

hmmmm......never even heard of 5 gauge cable before.

 

I was also thinking the same thing.

I have never seen that size in the United States .

What did you use???

 

you can use the stock wire AND the 5 gauge cable directly to the battery in tandem. Problem solved.

 

Yeah IIRC the stock harness splits off and one group of wires goes into the drivers side fender (maybe to the in-cab fuse box ) while the rest go around to the under-hood fuse box. I'm running dual or tandem alt cables with no problems.

 

oh my god! thats whats wrong with my truck!! same exact thing!!!!

 

Yeah you see it in this pic, the lower white cables are the stock harness unwrapped up to the split (1&2). The upper black cable is the one I added: