air conditioning doesnt work

The air conditioning system protects itself if the system has a refrigerant leak and system pressure drops the system will not allow the compressor to engage otherwise it would self destruct. The system pressure needs to be checked and the electrical circuit to the compressor checked for power. If you have a volt/ohm meter and are confident reading wiring diagrams, there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.