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KEN HEARING · 12-05-2016, 09:10 AM

I want to use battery charge line at rear tow recp..no power to blk. Battery charge connection???is there a fuse to that line?if so where is??i am 2nd owner,and do not think original owner used the connection.everything else on recp. Works fine .just no 12v power to blk. Conn.with engine running.towed vehicles batt.going dead after 200 mi.(?)--thanks for any info.---ken---

l1v3fr33ord1 · 12-05-2016, 12:02 PM

Ken-

According to page 42 of your coach's owners manual, the coach was shipped with a non-standard 6-pin trailer hitch connector. Is that still the case, or has someone installed a standard 4-, 5-, 6- or 7-pin connector?

**Lt Dan** · 12-05-2016, 10:30 PM

Quote:

Originally Posted by KEN HEARING

I want to use battery charge line at rear tow recp..no power to blk. Battery charge connection???is there a fuse to that line?if so where is??i am 2nd owner,and do not think original owner used the connection.everything else on recp. Works fine .just no 12v power to blk. Conn.with engine running.towed vehicles batt.going dead after 200 mi.(?)--thanks for any info.---ken---

I don't know about your Monaco, but my '06 Itasca did not have a 12v line to the hitch. You should be able to pull the plug on the motor home apart and see if there is even a wire to that pin. If not, you can do what I did and run a dedicated line from the fuse block.

KEN HEARING · 12-06-2016, 10:05 AM

Yes,a 7-pole recp. Has been installed.a 10-ga. Blk. Wire is in the typical "tow battery chg. Position.there is no 12v power to it with eng. Running.i am in a dirt rv park,so have not crawled under to trace wire.i thought,if installed,it shd.have a connection up front.(?)where? Shd. There also be a fuse?where?--thanks for any help.---ken

l1v3fr33ord1 · 12-06-2016, 11:40 AM

Ken-

A few observations:

1) I know that Ford does not (currently) provide a 12V trailer charge line on the F-53 Class A chassis. They leave that up to the chassis builder. I can't say for the Workhorse chassis. Could be the same, or not. What Workhorse wiring diagrams I have don't show trailer connections at all.

2) As the factory-shipped trailer connector did not have a charge line, it's likely any new 7-pin connector was done by a prior owner (or by his direction). That means you could be dealing with any sort of wiring.

3) A few years newer and you coach would have had a 15A circuit breaker in position #F30 in the Front Distribution Panel (the one in the big plastic box that's in the outside compartment under the driver's left foot, accessible from the outside). There is no such marked fuse/breaker in the panel for your coach, according to the owners manual.

You could, as a next step, inspect the coach's chassis battery positive terminal for an in-line fuse holder on a 10- to 14-gauge wire. Another check would be to look for an added wire in the Front Distribution Panel, one that looks out of place. There are spare fuse positions in the FDP; I've used one on my coach, and maybe whoever rewired the trailer connector did, too.

KEN HEARING · 12-06-2016, 01:13 PM

Thanks,best info. So far.i will check fuse panels etc..i am about ready to just run my own line,and be done with it.thanks so much!!!---ken

l1v3fr33ord1 · 12-07-2016, 02:52 AM

Quote:

Originally Posted by KEN HEARING

i am about ready to just run my own line,and be done with it.

Ken-

I understand the sentiment. But, maybe someone has already done the work for you. Maybe you get the "opportunity" to clean up some spaghetti.

My last suggestions are ones that you can do while "topside"; as you've already figured out, crawling in the dirt under the rig is the better way to find out what you've got.

Keep us posted.