Variable Resistor Problem

[Azash]

I am having a problem with the analog inputs.

I have a normal 100k Variable resistor +5V and Ground are on pins 3&4, and the middle wire off the variable resistor onto pin 2.
The variable resistor works fine, I have tested it with a meter on a seperate +5V and ground. When it is plugged into the RC analog in, the variable resistor stops working. The Voltage that comes off the center connection is always 5V. Nothing changes when you dial it up or down. Everything is hooked up according to the diagram, I have double checked it and had other people check it. When I connected the +5v and ground to an independant source, and just the center wire to the input pin 2, it does the same thing. I am not trying to pull it up into the dashboard viewer or anything, just been checking the voltage with a meter.

Any help would be appreciated.

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