I have a 2006 2500hd the ac blower motor stopped working i had power at the plug so i tried a new motor still not working any suggestions

Would need to know what make , model an year the vehicle is ?

is there anything ells not working.like cigarette lighter. etc. there is a relay to start from ignition feeds power from a low volt system to a high volt system for the blower motor. usually a long black relay with 2 small connectors and 2 large connectors some have 3 small ones.

Sounds like a Controller Issue with the Climate Control. Seeing that you applied power and it worked, then it is not the Motor.

UNLESS you try it on ALL SPEEDS and if it then does not work, you have an Input problem.

If it only works on ONE SPEED, then you have a Resister Issue for the Blower

You need to replace the blower motor resistor.

CHECK BLOWER MOTOR FUSE AND RELAY.SEE IF POWER GOING TO BLOWER MOTOR YOU HAVE FAULTY BLOWER MOTOR.IF BLOWER MOTOR FUSE AND RELAY OKAY.IF NO POWER GOING TO BLOWER MOTOR BUT POWER AT AC AND HEATER CONTROL SWITCH. BLOWER MOTOR HAS POOR GROUND OR AC AND HEATER CONTROL SWITCH IS BAD.

try checking for a 12v feed to the motor and iam sure you will find one ,i think the problem is the earth as the earth is the one that controls the speed via the reostat and the control knob ,so if its works with an earth then its either the reostat or the control switch

Check ground G201 splice pack near right front of lower console

I would say the blower motor resistor has gone out. The front dash module or the rear one.

I'm assuming the problem is the blower motor isn't coming on or working. 1st, check the fuse. 2nd, remove the glove box or pull the 2 tabs that act like stops when it's open ( the glove box will open out further) and you'll see the power plug connector for the blower unit. Turn on the blower through the climate control (heat, A/C, or whatever) and wiggle the connector to see if the blower turns on. If starts working, then an easy solution is pull the connector off and gently press the prongs together or inward. Then carefully reconnect with damaging the prongs. This worked for 96 Mark VIII due to the fact the prongs were not "seating" correctly in the female connector. It's been about 2 years since I did this and the connection is still good. If wiggling the plug doesn't work, pull the plug, turn on the climate control (heat, A/C), and check for voltage to the plug. That's about all I can help with.

Check your fuses.If you have a test light, unplug the blower motor, start the car, turn the fan on, if you have power to the blower plug, the blower motor is bad. If no power, if it's not a fuse, check the blower motor resistor. Should be mounted right next to the blower motor. It is inserted into the evaporator box