No electric at rear receptacle for toad

[DouglasC]

Tail lights on toad no longer work when hooked up to motorhome. Checked out the wiring harness for continuity - - all good. Then checked the Bargman receptacle on rear of motorhome - - no power. On closer inspection of the wiring harness, I discovered a couple of places where the wires had become bare from rubbing on the tow bar. Figured that a bare wire must have shorted out the circuit. Checked all the fuses in the motorhome that seem to have anything to do with towing. No blown fuses. Also checked for loose wires under the motorhome - - found none so far. I'm stumped!

Any ideas on what to check on next?

[enblethen]

Thanks for the update! Safe travels!

[DouglasC]

Yep - - it was a blown fuse. But the fuse sure didn't look blown, which made it hard to fine. Thanks everyone who responded for your help!

[DouglasC]

rjstractor wrote:
It's almost certainly some blown fuses that you haven't found. Your motorhome might have separate fuses if you have a factory Ford towing package on the chassis, and it's also entirely possible that the motorhome builder wired up the trailer plug with its own separate fuses. I would try to find those wires to the trailer plug and follow them to the front of the motorhome and look for inline fuses, or possibly a fuse block.

Thanks! I believe the problem is a blown fuse as well. Will keep working on that theory. I now have access to the 2006 E-450 trailer wiring diagram. That should help me sort it all out.

[rjstractor]

It's almost certainly some blown fuses that you haven't found. Your motorhome might have separate fuses if you have a factory Ford towing package on the chassis, and it's also entirely possible that the motorhome builder wired up the trailer plug with its own separate fuses. I would try to find those wires to the trailer plug and follow them to the front of the motorhome and look for inline fuses, or possibly a fuse block.

[enblethen]

Best to use a test lamp! There could be several fuses, one for each function plus some have a control circuit.

[DouglasC]

Yep - I have a Ford E-450 chassis. Checked the fuse box inside to the left of the driver's wheel well. Also the fuse box under the hood on the right side as you face the hood. None of the fuses that supply power to the trailer (in this case my toad) seem to be blown using a visual inspection. May need to do a continuity test on the fuses.

[enblethen]

Have you checked the trailer fuses on the MH?
Owner's manual for chassis should have their location.

[DouglasC]

The problem has to be in the motorhome since there is no 12V power at the Bargman receptacle at the rear of the motorhome when MH running lights and/or emergency flashers are on. (Thankfully, running lights and emergency flashers work fine on the MH.)

[midnightsadie]

check tow car fuses. inspect those wires again.