ktmrider

The wife drives a 2003 Trailblazer EXT and the driver rear window mysteriously stopped working the other day, both from the driver main switch and rear door. Good voltage in ( OR wire ) but none on the up/down lines ( three total ). Verified the door switch was good ( swapped with other side ), ran power from RH rear window ( good ), and put battery direct to motor ( good ). Seemed to point to the driver main switch but I swapped with a neighbor, no luck.
Tried looking for individual fuses with no luck. Funny how only one window will not work?!?
Any suggestions or info? Thanks in advance.