Help...how to read .7V+/-.25 on MAS potentiometer

[jrmd01]

I followed the instructions on this board about changing out the MAS potentiometer on a 1986 300E.

I outlined the old one with a blade, removed it and replaced it in the exact same spot as the old one. Now I'm trying to measure the voltage.

Instructions given were to hook up a voltmeter from the #2 pin to ground. So I put the red prong on pin #2 and ground the black prong to the strut bolt. I keep getting readings of 025.5mV?! What am I doing wrong?! I'm using a RadioShack digital multmimeter and have it set on V. I tested my battery it checks out at 13.5, I tested an AA battery and got 1.3V.