How do you replace the ac magnetic clutch on a 2005 corolla

The compressor has a clutch, the clutch engages to a rotating pulley by the use of a clutch. The clutch is an electric solenoid, or plunger.
This clutch, or solenoid clutch gets 12 volts from the controls. From a thermostat, thru refrigerant pressure switch, thru coolant temperature switch, thru ambient temperature switch, fuses and control switch.
Where is the ac magnetic relay? i think it's the clutch you are refering to.

Hi Adeyeri

Keep in mind that the Clutch won't engage for a few safety reasons.

Temperature inside vehicle
Temperature of compressor or pipes
Pressure inside pipes
Compressor jambed
Eg It's out of refrigerant Gas

You can momentarily engage the clutch by simply giving it +12v to the wire attached to clutch. Usually has a connector close by.
Or
If it has a Relay (click) in fuse box
You can by pass it with a jumper

A quick engage & disengage should allow you to detect possible problem.
But don't over ride the built in safety for more than about a minute.

Cheers
Hope this Helps

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no...sounds more like a loose connection at the compressor or bad wire in harness.

Has the Freon been checked with a gauge to see if there is enough Freon to allow the system to work. Low or no Freon will not allow the compressor to engage. The low pressure switch is most likely activated due to low freon, and will cause this condition.

I don't want to be a shadetree mechanic, but, did you check the fuse(s) ?

Check the MAGNETiCiC CLUTCH on that compressor! Just pull out the the power connector and directly put it on the (+) terminal, u will hear a clicking sound, thats the magnetic clutch engaging! If u didn't hear anything, magnetic clutch is busted and needs to replace it, if there is available part near ur place! U need an A/C technician to do the job!
Taah!

Locate wires coming from compressor clutch and trace to nearest plug that you can unplug. Turn on A/C to max cooling. If clutch not engaged (center of compressor drive pulley not spinning with pulley), unplug compressor clutch wires and use multimeter to check voltage going to compressor clutch. If voltage is around 12 volts or more, then clutch should be engaged when plugged in. Plug clutch wires back in (with motor still running and ac set to max). If clutch still not engaged, then clutch definitely bad because 12V signal should engage it.

pls. check your ac compressor magnetic clutch attached in front of ur compressor if its working/ ac clutch engage when u turn the ac switch on and disengage when u turn the ac switch off/ it normally makes a clacking sound when it engage with the rotation of ur compressor/ if its not engaging it means ur magnetic clutch is stuck up giving excessive load to ur engine thats why it overheats/ it smell burnt because its magnetic coil is fried/ or check cooling system of ur car might be that coolant is empty/ fan is not working/ radiator is clogged or thermostatic valve is stuck blocking coolant flow....

you will have to see with test light if you have power going to the ac compressor you either have bad compressor or low pressure switch

If it engages when you bypass, it is not the magnetic clutch.
It could be a relay or the low pressure cycling switch. I would jumper the cycling pressure switch connector. If it runs, I would check to be sure you have enough pressure first with compressor running. If ok, change the cycling switch