I have been on this problem off and on for a few months. Long story short, I keep blowing the "tail" 15A fuse on my 12/73 FJ40. I've done tons of troubleshooting and repairs of hacked up wire, but I can't seem to get this one figured out. I can't figure out why this thing keeps shorting
If I plug my harness into the alternator I blow the fuse as soon as I put on the headlights.
If I leave it unplugged, I lose headlights (normal) but I don't blow any fuses.
I thought for sure my Alt fried internally, but I just put a brand new one on there and same results. I have done the following:
New fuse panel and fuses
All new taillight, turn signal and sidemarker housings and bulbs.
New rear sub harness from coolerman.
New Batt positive and negative cables
New grounds to frame
any ideas
If I plug my harness into the alternator I blow the fuse as soon as I put on the headlights.
If I leave it unplugged, I lose headlights (normal) but I don't blow any fuses.
I thought for sure my Alt fried internally, but I just put a brand new one on there and same results. I have done the following:
New fuse panel and fuses
All new taillight, turn signal and sidemarker housings and bulbs.
New rear sub harness from coolerman.
New Batt positive and negative cables
New grounds to frame
any ideas