A/c relays where is the a/c relay and how do i know if its good or not?

You say you believe the relay is good. Just a thought, I have had a couple cars where the same relay was used for several things. If you have the same relay for something else maybe you can swap them to see if it works. I did this by putting the A/C relay in place of the fuel pump relay and found the fuel pump relay was bad. If you do this and the car will not run long you know the relay is bad.

Pull a relay out and use paper clip to jump. Usually cross corner. Watch compressor clutch and see if engages when key is turn ahead. Don't start car. If it does good. Now take alligator clips and check relay. Clip each wire to negative and positive battery post. Then clip negative to negative relay pin. And touch positive to correct pin. If it doesn't click do it another relay so you know your doing it right. If determined relay is good. And your compressor clutch did engage when testing it. You are low on freon.

swap it out with another known good one. say there is a horn relay
or wiper relay and they work swap them relays usually are 4 or 5 pin style i test things out almost daily doing this

There is a "clockspring" wiring spiral in the steering wheel to accommodate the rotating steering wheel with controls on it. If this breaks, you may lose some or all functions controlled by stuff on the s-wheel.

They can be tested if pulled out. Know how a relay works? Relays have a power side and a coil side. When the coil side is energized from voltage applied to it, the electrical contacts on the power side close allowing power to pass through the relay from the power feed supply on to the part the relay controls.

To test one, you use jumper wires from the battery to the coil side. Usually will hear a click-showing the power side contacts did close. The relay will have a small diagram etched into it, showing which two or more terminals are for the coil side, and which other terminals are the power side. If more than four terminals, the diagram will show how all are tied into the relay. Jumper a positive wire to the coil side input terminal, and a negative to the coil output terminal. If you have a multi meter, check that the power side terminals show continuity when coil side is jumped. It should have continuity-relay is good. If no multi meter, but you can hear or feel a click when testing-probably good.
That's the only way to test relays. Another solution if you suspect a bad relay is to swap in a known good relay. When the relay is pulled out, a good idea to check if the power feed for the relay is present. Use a test light grounded to a screw or metal bracket, and probe all the terminals that relay plugs in to. One terminal should have power lighting the test light, verifying power feed is good. Most, if not all relays, have a power source that is hot at all times, but if you find no power on any terminal, turn the key to on and check again-that relay may only have power available when key is in on or run.
Good luck.

When you apply power and relay clicks,that means its good.Best way to test relay issue is swap the relay with another working relay of same type and see if problem goes.This relay issues are very frustrating,while testing it shows good but still it will not work sometimes and after replacing relay all gets good.Also relays are not costly to replace.You can try swapping the relays and see if it helps.

If you know the fuse and relay have power, you should be able to jumper the relay and make the horn blow. The horn pad on the steering wheel usually grounds the relay. If you can jumper the relay and make the horn blow, the problem may be the horn pad or the clockspring in the steering column.

Have you tired jumping the AC compressor low pressure switch?

some are mounted to the fan some are in the fuse box under the hood

I understand that there is a relay box under the hood with 3 relays. Which is which I don't know. However if you are blowing the fuse TO the ecc relay, then the relay must be bad. This relay controls the spark.