Hello All,

I relamped and rewired an old utility trailer that I tow occasionally. The lights all work fine (4 dual bulb clearance lights, 3 lamp over 80" ID bar, 2 combo stop/turn taillamps).

While towing this weekend I noticed that the cruise control disengaged whenever I turned the truck lights (parking or headlamps) on. I typically only tow this trailer during daylight hours, but it was raining, so I had the truck's lights turned on. I am using the flat flour connector to the trailer and the truck had the factory tow package.

I did a search, and the closest thing I found was the mention of a bad ground backfeeding thourght the brake lamp filament. Anyone else have something like this happen or any good tips to offer?

Thanks for your assistance!

Regards,

Craig
'06 F150 Scab XLT ~ 5.4 ~ 4 x 4

 

I towed a car trailer and the cruise kicked off when the lights turned off also. I think that the trailer plug was shorting out which showed a fluctuation in the electronics and shut it off. That is totally a guess though.

 

Thanks for the tip....I'll check that out.

 

Only thought that comes to mind is that the cruise is designed to kick off if the hazard light 4-ways get turned on. Maybe some quirky cross wire thing?