Forum Discussion
Golden_HVAC
Feb 08, 2015Explorer
I am guessing that you want the 'running lights' to light up on the magnetic lights on the towed vehicle? You can do that, and the brown wire should have +12 volts when the RV running lights are on.
On my RV, I found that I only had about 9 volts at the rear bumper, and I needed to tow my brother's trailer with it's own 16 running lights on it, in addition to the 16 or more running lights on my motorhome. This at first tripped the 20 amp fuse going to the headlamp switch, so I installed a relay that runs power from the 20 amp wire going to my water pump (it was handy and powerful enough) and the relay is energized fine by the 9 volts that is powering the RV running lights.
My guess is that your RV power out to the brake and turn signal lights is fine, however the 12 volt power to the running light is missing on the receptacle where the magnetic lights are plugged in. Right turn signal and brake light should be green, while left turn/brake should be yellow. Running light is normally brown. Ground is white. Sometimes if the white wire is broken, then none of the lights will work properly.
Good luck!
Fred.
On my RV, I found that I only had about 9 volts at the rear bumper, and I needed to tow my brother's trailer with it's own 16 running lights on it, in addition to the 16 or more running lights on my motorhome. This at first tripped the 20 amp fuse going to the headlamp switch, so I installed a relay that runs power from the 20 amp wire going to my water pump (it was handy and powerful enough) and the relay is energized fine by the 9 volts that is powering the RV running lights.
My guess is that your RV power out to the brake and turn signal lights is fine, however the 12 volt power to the running light is missing on the receptacle where the magnetic lights are plugged in. Right turn signal and brake light should be green, while left turn/brake should be yellow. Running light is normally brown. Ground is white. Sometimes if the white wire is broken, then none of the lights will work properly.
Good luck!
Fred.
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