Heater blower motor not coming on on 1997 Cadillac DeVille

I pulled the blower motor and plugged it back in and it does not turn, there is electrical current in one of the wires that connect to the motor, I was able to get the motor to jog about a 1/4 of a turn by putting jumper wires to it, by doing this a second time it reversed rotation and turned about 1/4 of a turn in the oppisite direction. Does it mean the motor is bad?

by in Albany, OR on March 03, 2010
2 answers 1 comment
ANSWER by , March 03, 2010
Sounds like a bad motor. You should be able to turn the motor by hand very easily, if it is not turning or feels rough, replace the motor.
COMMENT by , March 03, 2010
The motor turns freely by hand with no roughness or noise at all. How can I test the heater motor? UPDATE; Found used heater motor for $45, salvage yard let me take and plug it in and return if it didn't work, it did work and I now have the heater working back to normal.
ANSWER by , February 19, 2011
check the motor brushes if you can get to them