My 04 QC just developed some "lighting issues". When I put on my left signal, both sides blink, front and rear! The right side doesn't appear to be as bright as the left when this happens. Put on the right signal, everthing works fine. All the bulbs appear OK, brake lights work, nothing has been installed or changed.
Any ideas??

 

Not sure if this will help, but I was recently having troubles with my wipers. The tech I brought it in to said that he's seen a few Ram's that have had corrosion problems that were causing shorts in the relay control box. He said the most recent one he saw was having some major light issues. Maybe take a look, see if anything in there is all messed up.

 

I have also seen poor grounds do the same thing for some reason. There is a big ground under your steering wheel, and there are some grounds, i believe, behind your tail lights, as well as under the rear bumper. see if any of those are corroded, and clean and tighten if necessary. happy hunting!

 

Yeap your best bet would be cleaning anything and everything that has wires around it to see if its shorting or just horrible grounds.

 

I was pushing on the drivers side a-pillar once and the headlights turned on!....I tried to get it to do it again but I wasn't able to. It seems like the wiring on these trucks can be a bit wacky...