GE Profile condenser fan test

[COLOR=#000000][FONT=Arial]I have a GE bottom mount freezer (pdf22mfsbbb) and the condenser fan has stopped running.

With the fan disconnected I have 12-13 volts across the red/white and yellow/white however whenever I plug in the fan the yellow drops to 2-3 volts. If I supply 12 volts directly to the yellow the fan spins up and runs fine.

I have been using a technical service guide for a similar model, as one of the steps it says to check the power at the board with the plug disconnected, so it is 12-13 volts which is okay according to the manual.

I have checked the resistance across the yellow/white (no continuity) and the red/white 1.8k ohms.

I have also checked the resistance across the thermistors (j1-0 to j1-3,4,5) and they all seam reasonable according to the service guide I am working off.

The voltage drop and the no continuity on the yellow wire is throwing me off, I am not sure if I should replace the board or the motor?[/COLOR][/FONT]

Have you checked out the following I believe the evaporator and the condenser fans are the same

http://forum.appliancepartspros.com/refrigerator-freezer-repair/4220-ge-refrigerators-gs-ps-models-evaporator-fan-motor-test-replacement.html

I have applied the tests mentioned in the article, however should the voltages be measured with the fan connected or disconnected?

Fan Connected
Yellow - 2 V
Red - 12 V

Fan Disconnected
Yellow - 12V
Red - 12V