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rtootle · 08-19-2012, 08:23 PM

I have a 2003 Alllegro Bay with the 8.1L workhorse. I am setting up a 2012 Chevy Cruze as a dinghy. I attempted to wire the MH to the cruze and got the following. The turn signals worked fine, the tail light worked, but when I press the brake on the MH, the cruze tail lights went out and the signal lights came on, release the brake, the tail lights came back on, signal went out... Do I need some type of converter or diodes?

thanks in advance

Skip426 · 08-19-2012, 09:02 PM

If your coach has separate brake and signal bulbs and the towed doesn't then you need a convertor,on the coach, to bring the lights through on 4 wires.
Left signal/brake , R signal/brake , park and ground.
If both have separate signal and brake bulbs, then you need to go up to a 5 wire system.
L signal, R signal, brake, park, and ground.
If you have common signal/brake on the coach, and separate on the towed, you need a convertor on the towed and diodes to keep the power apart.
Wiring diagrams will come with the convertor.
If your picking up your power from the factory coach plug, and the coach has separate signal/ brake it may already have a convertor mounted on the coach.

henryn · 08-20-2012, 07:07 AM

Quote:

Originally Posted by rtootle

I have a 2003 Alllegro Bay with the 8.1L workhorse. I am setting up a 2012 Chevy Cruze as a dinghy. I attempted to wire the MH to the cruze and got the following. The turn signals worked fine, the tail light worked, but when I press the brake on the MH, the cruze tail lights went out and the signal lights came on, release the brake, the tail lights came back on, signal went out... Do I need some type of converter or diodes?

thanks in advance

Be careful! The chevy cruze is not equipped too be towed 4 down. I wanted to go this route last year, but read the cruze was not geared for towing per Chevrolet. They may have made changed on the 2012,but don't go by the owners manual. call the Chevy people to be sure. Good luck and happy travels.