dennyida wrote:
Good morning to all. Being new to 5th wheel ownership I have to ask this question concerning this topic. Do I understand that the truck charging system will charge the battery on the 5th wheel while in tow? All my reading on our new Outback 296frs did not say anything about this and I must admit I`ve never herd of this before. NEW 5TH WHEEL OWNER STILL LERNING!!!
It will if the wiring is correct (see the OP's original post) and if you have +12VDC present at pin #4 of the Pollak 7 pin receptacle at the rear of your truck. Pin #4 is always hot on my Ram since it doesn't have a battery isolator; on a Ford, pin #4 should be hot with the engine running (or the ignition on) but not with the ignition off since it has a battery isolation relay.
If pin #4 isn't hot, then either the fuse and/or relay have not been installed in the truck's power distribution center (they often don't come from the factory with these installed - they may be in a bag in the glove box or console), or the truck's fuse in the battery feed line is blown.
Rusty