how can i trouble shoot blower motor it is lacking ground on 2005 Hyundai Sonata

i allready made a bench test to blower motor and it does work

by in Laredo, TX on August 10, 2012
2 answers 2 comments
ANSWER by on August 10, 2012
Most likely the blower motor resister. Check for ground going into and out of resister.
COMMENT by on August 10, 2012
i do not have ground coming out of resistance i have signal coming into the resistance only when i place the ac switch to the number 2 position
COMMENT by on August 10, 2012
You may have 2 problems - the resister and the control head. You should have a signal to resister in any fan setting. If you replace the resister first (cheaper of the two) you should have the blower working on speed 2.
ANSWER by on August 10, 2012
add a grd wire to see if it works