I replaced the circuit board mounted to the frame in rear of truck, I removed cleaned and tightened the grounds attached to the frame just behind the drivers side wheel and I checked the fuses. Same problem exists. Any ideas?
Well, it sounds like a ground problem to me. If a ground problem, it can cause some weird things to happen.
See the rear junction block, I'd check those grounds. Because those grounds are connected, ground wire is black, it looks like hunting a needle in a haystack. In the diagram, the top wires should be voltage and bottom wires ground. I guess you could try a separate redundant ground, at rear, for lamp/s? Click on the comment link.
Testimonial: "Oilyspill, I also think it is a grounding problem, I replaced the junction block. I could not find any ground connections close to the rear of the truck, although I thought there should be one. I will try a redundant ground by tapping into the ground wires in the light assembly itself and grounding them to the frame on both sides. Do you think that would work/worth a try? Thank you very much!"
Yes, I would try the same thing.
Just to add, see the lower wires from junction block those are grounds, take loose from junction block, Use a test light connected to battery voltage, touch ground wire terminal, the one that goes to chassis ground. If the light comes on, at least the ground is good enough to turn on the test lamp. I didn't think of this before, sorry.
×
293 views
Usually answered in minutes!
×