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Ok. I need you too remove the relay for the blower motor and look on the side and see if there is a diagram of the relay pins or numbers on the bottom of the relay next to the pins. There should be a 86, 85, 30 and 87 on it. Jump pins 30 and 87 in the relay socket in the fuse box with a piece of wire or a paper clip with the relay removed. See if the blower motor comes on when the key is turned on.
Ok. Do you have a meter or test light to do a couple of tests?
Ok. With the relay out and the AC turned on and the key on, check for ground on pin #85 of the relay and for power on pin #86 of the relay.
The ground signal comes from the AC control module which is the AC control panel. Either the wire s broken between the AC control panel and the relay pin #85, or the AC control panel is the problem.
The wire is BLACK/LIGHT GREEN striped.
Then the problem is the AC control panel internally.