A/c compressor wont kick on

have u checked the ignition to fuse panels or the relays for possible problem

Check the sensors

Some possible causes are the system is low on freon, a faulty compressor clutch, faulty low pressure switch, relay, fuse, or control switch.
Do you have power at the fuse and the relay ?

Could be a fuse or a relay. You may need a wiring diagram to track the power to the compressor clutch.

If there is no refrigerant in the system you have a leak.
I suggest taking the vehicle to a shop who employes HVAC technicians or equilavents. Dealing with refrigerants is dangerous and illegal if your not certified to do such.

Check the ground ot the pum if power is ok. Also check connector for good connection burning/melting and terminals are in place.

bypass the relay and test it you can take 2 wiles black coming off of it is the negative or ground wire if it dosnt work on direct power it compressor is bad and you need a new one

If you have no power (12v) to the power wire at the A/C compressor clutch and have jumpered all of the switches then you need to check for power coming out of the A/C switch on the dash. Also there might be a pressure switch on the back of the compressor that you can jumper also. You can also check A/C compressor relay in the under hood fuse/relay box. There might be a fuse in the under hood fuse/relay box for the A/C too. Hope this helps.

may be a pressure switch. that will keep the compressor from kicking in.

There is a low limit switch and when the Freon is too low, it opens and wont let the compressor come on.