At this point I'm still a bit puzzled & I want to be positive that it is indeed the window motor before I replace it. In addition let me say that there is NO sound at all coming from the motor when I depress the window switch (though I do hear a clicking sound coming from the fuse relay) & that should be all I need to know to verify a bad motor. However, I need to better understand what the following diagnostic testing I performed means for my own clarity.
So after removing the door panel & disconnecting the 2 wire window motor plug I checked the voltage using my digital meter. I got 11.25 volts while depressing the D/S window switch. After reconnecting that same plug & now checking voltage at the motor itself by removing the little white clip that covers the two terminals on the motor, I got 8.40 volts while depressing the window switch. That tells me that there is a short & or increased resistance internally that is responsible for the voltage drop at the motor itself. Is that correct?
The last thing that's puzzling me is when a window motor becomes inoperable shouldn't I also receive a "1" (open circuit) when I read resistance across the two motor wires. Rather I'm getting a closed/uninterrupted reading that is indicating normal minimal motor resistance. Your expertise and or assurance that I indeed have a bad motor (if that's the case) would be appreciated. Thank You. Marty
have the same problem?
Saturday, May 30th, 2015 AT 6:19 AM