[VAC] Re: Tow Vehicle Connector Wiring

[John and Jodi Guerin <guerin3j@xxxxxxxxxxxxx>]

My husband had the diagram for the truck's harness, so we opened up the 
plug on the trailer end and started connecting wires and checking to see if 
they were doing what we thought they should.  It went something like 
this:  10 year old son (feeling very big to be in the driver's seat) was 
instructed to step on the brake after dad hooked up what he thought was the 
brake wire.  Mom checked to see if the brake lights came on, if not we 
moved on to the next spot to connect the wire.  Basically my husband had 
some idea what some of the wires went to, but the brakes had been crossed 
with something and the ground was connected to something else...you 
know.  It was a matter of trial and error, but if you are patient you'll be 
okay.  Do make sure to turn the truck off when making the connections 
though, wouldn't want this to be too shocking!  When this happened to us we 
were on a trip to pick the trailer up 750 miles from home.  We were afraid 
we had something wrong with our brakes (they were locking up) and had to 
figure out what was wrong before making the trip home (through Yellowstone 
no less).  Once we realized it was just a problem with the wiring it was 
just a matter of trial and error before we got it all fixed.  Good luck.
Jodi