How to test AC compressor clutch - easy trick.

You can find tools used in this video here:

(These are Amazon affiliated links)

[DIYtime]

You can find tools used in this video here:

(These are Amazon affiliated links)

[ronaldsoares]

Bro this is amazing and simple content. Straight to the point and alternatives that maybe dangerous. You my friend are an artist of the diy trade

[gabrielseaff]

Excellent video and information. Thank you for sharing.

[jrock]

Just curious what the ground cable connected to the bracket right above the alternator supplies power to.. it seems to be part of the ac clutch wires that were tested possibly?

[Daddicated]

Pretty cool. This would of been useful test on my TSX when my compressor went out.

[aegismountain]

Thank you! Now I know I need to look elsewhere

[NT-gzbj]

You dont need any of that to test the ac clutch. Thanks to RY the Car Guy for this info, look him up on youtube for visual on how to do the self test. For Nissan Xterra (and according to comments on his video, nissan pathfinders too, maybe other vehicles- worth a try lol)

Put your wippers up.

Put the key in and turn to on position, don't start the vehicle.

With in 20 secs of turning the key to the on position press the little button on the drivers side door frame (the one that tells your vehicle the door is open/closed).

Turn the key to off then back to on and you should hear a quick horn beep. Thats good and means the self test will run.

Will test in this order

rear defogger

Wippers (this is why you should put them up. So not to run on dry windshield)

Lights, parking/side, license plate frame, head low and high.

Ac clutch (you will hear the clicks if its working)

Electric fan.

It runs through the tests 3 times. Or you can end the test by turning the key off.

If you dont hear the clicks after the headlight test and before the fan turns on then your ac clutch isn't working. Check fuses and if fine then need to replace the ac clutch.

[viktor]

Next time you won’t find a problem after this. Because your wiring will have corrosion from puncturing a wire.
DONT DO THIS. THAT TOOL IS NOT WORTH THAT MONEY.

[mrmikewayne]

Or just see if wire to compressor has power

[babelonchabalala]

If it does not engage it means either the AC fuse has blown or the AC magnetic coil is faulty not pulling the clutch???

[bleeek]

Well i guess i need a ac compressor. Mine dont move at all when i run a wire from battery to compressor. I dont see no ground wire.