Breakaway switch and brake lights
Yesterday, I replaced the cable that connects the 5th wheel to the 7 pin connector on the truck. Luckily, the cable I ordered used the same color scheme as the existing cable (I tested old and new ca...
Forum Discussion
I did a little research this morning and now I understand why the breakaway switch does not connect to the brake lights. What I didn't realize is that the brake lights are controlled via the turn signal connections and is actually managed by the tow vehicle. I found a wiring diagram at ledtrailerlights.com that labeled those pins as "left/brake light" and "right/brake light" whereas the diagram that came with my new cable labeled those pins "left" and "right" which end helped confuse me!
As for the compass test, how close to the wheel does the compas have to be? I just tried it and with the breakaway pin pulled, the needle was pulled from North to Easr-West when I placed the compass on the outside of the wheel in the well of the rim. Trouble is, it did the same thing with the pin back in place on the breakaway switch. So, I assume it was the effect of the magnets moving the needle and not the 12VDC flow.
As for the compass test, how close to the wheel does the compas have to be? I just tried it and with the breakaway pin pulled, the needle was pulled from North to Easr-West when I placed the compass on the outside of the wheel in the well of the rim. Trouble is, it did the same thing with the pin back in place on the breakaway switch. So, I assume it was the effect of the magnets moving the needle and not the 12VDC flow.
