In a previous thread, I was troubleshooting why my external mirror signals weren't working. I think I just figured that out, but now I have another issue that may be the cause of the LEDS not firing in the mirrors. Apparently, the LED feed wires in the mirror are showing 10.7 volts when I check them with a digital VOM and the signal stalk is activating the normal bulb signal lights. When I bench tested the mirror LEDs with 12.6 VDC, they lit up. I am thinking that the 10.7 volts they are seeing from the signal light switch is not sufficient to fire the mirror LEDs. Am I correct in this assumption?

Now, the truck is a 1998 Lariat Supercab with an unmolested 46,000 original miles on it.

The horn works, the signal lights work (corner ones) but the cruise control does not work and it has had the master cylinder switch recall. I have also determined that the cruise servo is functioning.

What I am wondering is if it is possible that the clockspring is"partially" functioning and is affecting the cruise and causing a low voltage condition at the mirror signals (the 10.7 volts measured)? I'm not sure what functions rely on the clockspring.

Anyone have good information or ideas?

Thanks