Where is the a/c relay clutch located? - 2005 Honda Odyssey Touring

Clutch relay ? A/C compressor clutch ? It's a PCB relay - printed circuit board , soldered directly on the circuit board inside the under hood fuse box. non serviceable , so they say .

You haven't provided information on what vehicle this is on. So in general, if the fan is driven by the motor, the clutch is temperature controlled in a mechanical manner. Electric fans will have a relay.

Most of the time there in the under hood fuse / relay box . an the clutch relay I'm assuming you mean the A/C compressor clutch relay . I mite be able to say for sure if I new what make, model an year vehicle .

Usually it located on the Accumulator. (The big aluminum tank on the passenger side, under the hood)

If the Freon is low then the a/c clutch will not cut on.There should be a fuse box under the hood and the relay will be in it.

The relay is under a black plastic cover on the driver's side behind the battery. There are a couple other relays under there.-------I would start by jumping the AC relay to see if the clutch will run, you do this by removing the relay and putting a jumper wire between 30 and 87 terminals, if the clutch runs then check to see if there is power on the 85 terminal at the relay and a ground at terminal 86 if all are good replace the relay. The terminal numbers are located on the bottom of the relay, be sure that terminal 30 has power if the clutch does not run.
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Faulty compressor clutch relay. Check to see if the relay is receiving voltage when the A/C is turned on. Also check the relay wiring and ground connections. If bypassing the relay with a jumper wire or routing battery voltage directly to the compressor clutch makes the A/C work, the relay is probably bad.
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This will solve the problem or point you towards the cause of problem. Thank you for using fixya.

The Clutch/Starter relay has a Blue Top and is located on the right inner fender near two other relays. It has quite large wires (12Ga.) and is often the culprit.

I pulled this from another web site
"The AC clutch relay is located inside the cab on a metal bracket that is easiest to see when you remove the glove box compartment.

The relay is on a metal bracket bolted to the top of the plastic air box, forward and to the center of the dash from glove box.

There are three relays in a row on that bracket. The AC clutch relay is the end one closest to the driver’s side."

in the relay box under the hood a big black box and usually 3 or four relay fuse buy one and check each one seperatly if not your clutch burnt out

I don't know of any relay that would take that long to replace.
A very common problem is the magnetic clutch relay which works the A/C clutch. Its located under the hood in a relay/fuse box right next to the battery. Take the cover off and look inside the cover. It list all the relays and fuses in it. Locate the one for the mag clutch. It will be abbreviated like mg/ch or something similar With the car off, pry it out carefully and swap it with the horn relay. (look for that one listed in the cover also) After the swap, start the car and see if it works. If it does swap them back to their normal positions and go buy a new mag clutch relay.
Hope its this simple for you.