2005 Hyundai Sonata Q&A

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

i allready made a bench test to blower motor and it does work -
Answer 1
Most likely the blower motor resister. Check for ground going into and out of resister. -
Comment 1
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 2
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 2
add a grd wire to see if it works -