Hey guys! I know there are a ton of electrical issue posts and I've been combing them. Even printed out the wiring diagram and taped it together and highlighted, but still can't find my culprit. I'm not an electrical genius, but I have a talented mechanical friend helping when he has time.
I've been building my Humvee for a couple years. Finally got it all painted late last fall and have been putting it all back together as time allows this winter. Recently, I installed my new headlights and blinkers and blackout light and side markers (all purchased from Midwest Military Parts). Upon install, everything worked perfect. Then it got super cold and I didn't spend much time in the shop through January/February. Two weekends ago, I went out to drive it for the first time since it was all back together and the batteries were dead. I put a charger on and get the rig going, but I had no lights. For a moment, I had blinkers and brake lights and cluster lights... and then nothing.
We took the switch out and disassembled. The breaker inside was popped. Also, the connection points were fairly wore down, so we removed the blackout light connection point and put it on the service drive side just to see if that was the culprit. We soldered a 40a fuse in and tried it all again. The lights flashed and then popped the fuse. Currently, we show .3 ohms on pin H, which says to 21, female end to service tail lights. So far can't find an obvious short or issues and when you unplug 21 on either side, nothing changes.
Curious if anyone has any ideas or has seen something like this. I know a lot of times it's the switch or the blinker. I do have a new 3 lever switch but with the issue of the .3 ohms, I don't want to melt the new $100 switch too bad. Would the light in the blinker lever be an issue?? We thought not with the reading currently. Hopeful someone has an idea of where to check cause I'm sorta lost at the moment. Thanks to all!
I've been building my Humvee for a couple years. Finally got it all painted late last fall and have been putting it all back together as time allows this winter. Recently, I installed my new headlights and blinkers and blackout light and side markers (all purchased from Midwest Military Parts). Upon install, everything worked perfect. Then it got super cold and I didn't spend much time in the shop through January/February. Two weekends ago, I went out to drive it for the first time since it was all back together and the batteries were dead. I put a charger on and get the rig going, but I had no lights. For a moment, I had blinkers and brake lights and cluster lights... and then nothing.
We took the switch out and disassembled. The breaker inside was popped. Also, the connection points were fairly wore down, so we removed the blackout light connection point and put it on the service drive side just to see if that was the culprit. We soldered a 40a fuse in and tried it all again. The lights flashed and then popped the fuse. Currently, we show .3 ohms on pin H, which says to 21, female end to service tail lights. So far can't find an obvious short or issues and when you unplug 21 on either side, nothing changes.
Curious if anyone has any ideas or has seen something like this. I know a lot of times it's the switch or the blinker. I do have a new 3 lever switch but with the issue of the .3 ohms, I don't want to melt the new $100 switch too bad. Would the light in the blinker lever be an issue?? We thought not with the reading currently. Hopeful someone has an idea of where to check cause I'm sorta lost at the moment. Thanks to all!
