Blower motor!!!

My AC system went out, didn’t know what happened. I replaced the blower motor and that didn’t work, replaced the resistor, that didn’t work. I checked all the fuses nothings blown they all tested good. I then ohmed the whole system when it’s unplugged from the blower motor it is perfect, wash fan setting increases voltage how it’s supposed to. Then I plug the the pigtail into the motor and the pigtail ohmes with zero voltage going to the blower and the ac light won’t turn on and the compressor quits working. But as soon as I take the pigtail out of the motor the ac compressor works and the light comes on. Heater won’t work either if pigtail is plugged in but when it’s out then the system heats. I NEED HELP BADDDD

 

You have a voltage drop in the circuit somewhere.
Backprobe the connector at the blower motor with it plugged in and turned on, check the Power (Pin 2 (Black/Yellow)) & Ground (Pin 1 (White/Blue)) and see which one is missing so we know which side of the circuit we need to go after.

 

I will try this tomorrow and respond with the result for either the ground or the power