Lol, ok, I do have a little more electonics knowledge than that. I was reading the voltage from ground to one side of the sensor plug. Thats why I found it so odd that when I connected the jumper there was no voltage there, I can't explain it. How do the high and low pressure sensors connect to each other? Do they both connect back to the programmer and if so, does anyone know which wires they are on the programmer so I can check them there? Anyone have a schematic they'd be willing to share?

Jay here, I do have one as a spair but am not yet ready to sell it. I too have a/c problems and to this Club I found 4 diagnostic codes and am currently searching for a solution. I'll let you know later, if you are still interested, in buying the ECC unit.

The ECC unit is not his problem.

Update: Today I unplugged the big plug on the HVAC programmer and did my best to trace the wires to and from the low and high pressure sensors. I found the two for the low pressure pretty easily, the high pressure on the other hand showed two locations on the plug for the outgoing and incoming wire to the sensor, so in frustration I plugged it back into the programmer and voila, like magic everything started working, not sure if the plug just wasn't seated properly or if maybe my probe moved one of the connectors and it finally made contact, but I get nice cold air from the right vents!!!! Now my only problem is that I can no longer get a good stream from the dashboard vents when I put it on defrost...but I have air!!!! Thanks to those who have helped.

When you unplugged the ECC you reset the system. You can do the same by clearing the codes or disconnecting the negative terminal to the battery. When a sensor shows a problem, many times it will kick the ECC out and it needs to be reset.

My best guess.....I've had the same problem in the past.