HELP--My Exterior Lights Have Gone HayWire
My exterior lights seem to be possessed by something and I really need some help.
To begin with, we've changed all the exterior lights of our '79 to LED's. I added a resister to the left and right blinker because my '99 Expedition needed the extra stuff to make things engage. I have installed a new 7-way harness on the AS, a new 7-way connector on the expedition and a new and separate fuse block just for the 7-way. I've checked all of the fuses in the Expedition and all is good.
The clearance/marker lights, back-up lights, electric brakes, 12volt charge and ground are all fine and working properly. But the brake and turn signal lights are possessed.
When I step on the Expedition brakes, all of the lights come on--including the license plate light. I can do Morris Code from just about every visible angle just by stepping on the brakes.
When I use either the left or the right turn signal the same thing happens. All of the lights, including the license plate, start blinking.
I've tested with a volt meter and nothing out of the ordinary.
I sure could use help in figuring out what is going on. What to double/triple check?