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Old 07-17-2014, 08:02 PM   #1
Junior Member
Join Date: Jul 2014
Posts: 3
Dinghy Battery Charging

2013 Holiday Rambler Endeavor 43DFT

I am trying to find the source for the 12V charging lead in the 7-way connector factory mounted on the rear of our motorhome. I suspect it must be fused somewhere.

Part way thru our winter vacation last year the battery on our toad/dinghy began to quit during the day while being towed. The wiring had been set up to charge the dinghy battery and it was working. I checked the pin (1 o'clock) on the 7-way connector and found there was 0 volts with the engine running. The 7-way has a 3 foot pigtail with a 6-way flat connector and a single lead for the brakes. The 6-way has white,black,red,brown,green and yellow leads. With the engine running there was 0 volts on the black lead coming from the coach. I suspect there is a fuse blown somewhere. The 6 wire pack disappears into other wire packs running under the chassis.

I have discussed with Monaco techs and they do not know the source for this circuit. They sent me schematics of 2012 HR but I cannot find any reference to the 7-way connector wiring. I checked the front DC fuse panel in the left front bay and could not find any reference to trailer/dinghy charging. I checked the owners manual which has drawings for this DC panel. I checked the inline fuses located in the right rear compartment with the chassis batteries and there is no reference to dinghy charging. I checked in the compartment housing the Bi-directional isolator but no reference to dinghy charging. I have checked around the converter located mid-bay passenger side but no reference to dinghy charging. I must be missing something.

Has anybody run across this wiring and is there anybody that knows where the charging wire originates?

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Old 07-17-2014, 08:34 PM   #2
Senior Member
Join Date: May 2004
Posts: 193
Sometimes quicker to run a #10 wire from the batteries, fuse it, 20 amps, and join it to the black wire in the harness. Isolate the black from where it disappears into the bundle and you have a charge line to your toad.
Worked on mine
D Barber is offline   Reply With Quote

battery, charging

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