OBS Towing question (electrical)

Hey guys,.....

I have the standard 7-pin RV style plug (flat blade / new style) on my 97 truck and the pin that supposed to have 12 volts on it {roughly in the 1 o'Clock position} dosen't have any voltage on it.

I checked every single fuse on the truck and everything checked out OK.

Just to satisfy my curiosity, I checked the plug on my 95 OBS and got the same thing,......no voltage.

I'm thinking that there must be a relay missing or a fuse that needs added. I really don't want to clip the wire at the plug and run it up to the front, but if I don't get this figured out, I'm going to have no choice.

Can anyone help me out?



I'm really needing to get 12v on this wire so I can use my interior lights in my car trailer.

Did you check the under hood box?

I was told you have to switch one of the pins around inside. I had an issue using one of the 7 to 5 round adaptors. I have not sat down and done this yet so I don't know.

Well,........ I figured it out. :doh:

It appears that you have to have the key in the run position or the truck has to be started in order for this pin to have voltage.

It has 12v when turned to the run pos. and 14v when it's running.