Lets see if I can explain this one:
When I arrived home this evening the running lights on my 1989 F350 were on. I assumed someone was in it, but no. When I opened the door assuming I left the lights on, I found the light switch to be off. I moved the switch to running lights, head lights on, then back to off but the running lights still stayed on. When I go from the running light being on to off they simply get a tad dimmer. I also then noticed the Gauge cluster and A/C lights are lit as well.
The truck has an aftermarket alarm that someone before me installed. While working with the lights it started going off/on etc... I could get it off but it wil start back up over and over. I ended up finding the wires going to the noise maker and cut them. Maybe its hooked into lights?
After fooling with it I could work the knob some and maybe get the running lights off for a short time, but they would cut back "on" within a couple of seconds. After fooling some more, the running light (while the switch was off) started flashing quickly and I could hear a relay under the hood clicking as well. I found the relay, and removed it to find the lights still stayed on and the still were blinking- i simply removed one of I assume many relays. While the remaining clicking was under the dash, sounding as if it was behind the foot plate near the parking break release, when/if I turned the lights all the way on - the clicking would stop.
At this point, I am suspect the switch has gone bad. Or could it be a relay? Maybe this aftermarket alarm is triggering the lights?
Any direction would be helpful. Unplugging the batteries for now
Thanks ahead of time....