Check the following........
1. Clutch coil wire harness for proper connection.
2. Power and ground to the clutch coil wire harness.
3. Pressure switches.....
you are bypassing the refrigerant lo pressure cut out switch when you wire the clutch direct.you need to determine if there is any refrigerant in the system.if the fuses are good and there is refrigerant in it, i would say that the problem is with either the pressure switch, or the A C controls on your dash.
This could be because you have a leak in you A/C system causing a loss of freon. When there is not enough freon in your system the A/C compressor will not engage, it will harm the compressor.
i think these is not a proper question i do not know
The most common is low refrigerant. It can also be caused by other electrical problems as well, check he fuses.
Besides fuses,there are relays that activate this compresorm most of them located under the hood; however, most of the compresors have a pressure control switch, if you have a small loss of refrigerant, eventually it is going to loose pressure an your compressor will not start to prevent compressor damage. Evacuate the system and refill with the correct amont of refrigerant.
The AC compressor in a 1996 Sunfire may not engage due to several potential issues. Common causes include low refrigerant levels, which can trigger a safety switch to prevent compressor operation, or a faulty AC clutch that may not be engaging properly. Electrical issues, such as blown fuses or a malfunctioning AC relay, can also prevent the compressor from turning on. Lastly, a malfunctioning temperature sensor or control switch could inhibit the system from activating.
Check fuses May need a refrigerant charge Jump ressure switch at the top of the accumulator/drier to see if compressor starts
To reset the AC compressor on a 2003 Cadillac Seville SLS, first, disconnect the negative battery cable for about 10 minutes to reset the vehicle's electronic systems. Reconnect the battery, then start the engine and turn the AC to the maximum setting. If the compressor still doesn't engage, check the fuses and relays related to the AC system, and ensure the refrigerant levels are adequate. If issues persist, further diagnosis may be required.
check all A/C electrical connections, like the connector at the compressor.. make sure the compressor is trying to engage, should be an audible click when switched on, check fuses, also check pressure switch on coolant line.. it has a electrical connector on it also, and if coolant is low it will not let the compressor engage.
First, the clutch won't engage if the refrigerant level is low. Start there. Next, check the sensor at the receiver/dryer.
The compressor is coming on because you have the heater set to defrost. Take it off defrost and the compressor will not come on. I would suspect the compressor is locked up.
fusess at compressor