Thread: No 12v
View Single Post
Old 09-25-2020, 01:16 PM   #3
jeremyseattle
New Member
 
Join Date: Sep 2020
Location: Seattle/Glacier
Posts: 24
Default

Quote:
Originally Posted by Truck55 View Post
I think I found why I’m not getting 12v on most my lights. The fuse block by driver only has power on 1 side. Now I have to find where that is feed from.
Doesn't really where the feed is from; rather why it's not going to anything, right?

Not having seen this fuse block, I wouldn't know what to look at specifically, but I'd check three things:
  1. Positive bus - check for power on the currently-powered side of the fuses - the common bus should have +~12V
  2. Ground - check for postive power on the non-powered side against a known-good ground
  3. Master cutoff - look near/on the block for a master fuse or circuit breaker (manual or auto/thermal reset)

Chances are you have a bad connection on the positive bus or the common ground.

If there's a master cutoff, it could be a thermal-reset circuit breaker on the positive feed from the batteries. Disconnect the batteries and wait an hour to see if the breaker resets. Or see if there's a reset button on the breaker.
__________________
1993 Gulf Stream Ultra 6262 (Ford 7.5 4X4)
Seattle, WA
jeremyseattle is offline   Reply With Quote