I drive an 2003 Acura TL. This week, the fan stopped blowing air, regardless of what setting the temperature / A/C is one.
I pulled out the blower motor and connected a multimeter to it. The reading is 0 volts with the ignition set to off, 9.5 volts with the ignition set to on with the HVAC turned off, and about 11 volts with the HVAC turned on.
I took it to a shop this morning. The mechanic there said that he does not know A/C well, but he tried connecting the blower motor directly to the car's 12V battery and it came to life. I don't understand what could be going wrong here.
What should I check next?