Voltage of the blower motor on high?

[FrozenDave]

Took my svx into the shop because it was throwing oil onto the windshield and they resealed the engine and replace the idler pulleys... then after my blower motor craps out and i get an O2 sensor failure ... They wont touch either one because they weren't working near them. Just need the voltage reading of the blower motor harness to the motor on high so i can splice in a temporary line for the winter... Duluth MN sucks without heat I already cooked an aftermarket blower motor within 5 minutes of installing it so I just want to hardwire one in to make it through the winter, any input would be helpful. Thanks!