Connector information and LED brake light fix
I don't know if this kind of info was previously posted, but it was so useful I thought I'd throw it in.
LED brake lights - - these will KILL the cruise control. Reason is, the LED's do not provide the low-resistance path to ground needed by the circuit behind the brake-light input. I found this out by measuring pin-6 on my servo connector, and it was 6V instead of zero. (should be 0V with brake pedal released, 12V with brake pedal depressed)
I solved the problem with a 25-watt 20-ohm resistor, wired from the brake light bulb hot wire to ground.
Servo Connector - - this is the 10-pin (8 wires used) connector on the servo body. This connector has all the information needed to identify a cruise control problem, and all you need is a multi-meter and a wire-piercing probe. I was able to check out the function of the steering wheel switches, brake pedal, and VSS in just a few minutes.
Wiring Diagram - - the Ford wiring diagram book was indispensable. A critical item for troubleshooting, it has excellent wiring information PLUS all the location information for where each and every connector and module can be found. I bought mine for $20 on line. Highly recommended. These are out of print, and you might have to do some searching, but it's worth the trouble.