Wow that was fast. New relay just arrived from Partznet.

Thread bump!!!

Hey those with the power, what is the chance of making this a sticky.

This problem will become more frequent as a lot more people with 03-04s get up there in mileage.

Thanks to all that posted on this problem!!!

For $8.21, the fog light relay and the A/C relay in the 2003 model can be found here:
http://parts.digikey.com/1/parts/753...4t-r-dc12.html

I have an '07 with an intermittent blinking light. It happened a few weeks ago, but it quickly started working again. Then it happened again today.

I tried the "pavement banging fix" and it worked. I do have the current relay. I called the dealer and they want a $120 to diagnose the problem because "it could be something else possibly." He said something else could cause the blinking light. Is that true? Maybe...but I doubt it. I'll try a new relay and the diode first.

Every once in a while, the Internet redeems itself from all the nonsense and lowest-common-denominator information. This thread is one of those times. 118k on my '03 and today the blinking A/C light starts. Luckily just past the worst of our summers here in NC, but still hot enough to warrant fixing this (before I need the defogger). Sure enough, the MG CLT relay was the fail point. $28 bucks and a few minutes under the hood and she's running fine.

Than Omron has five posts (a middle post on the right side, pin 4). The one out of my vehicle only had four posts. Does that socket in the fuse bank have the fifth slot (presumably unwired)? I can't recall from the 90 seconds I was under the hood.

But you spent too much!

Hi all! This is my first and only post on these forums and I'd like to say thank you thank you thank you for this thread! I signed up for these forums JUST because of this thread. I don't even have a 4 runner, I have a 2002 Toyota Camry, and this exact problem happened with my car. I really can't believe that Toyota hasn't recalled this little relay considering the ridiculous amount of people that seem to have the same issue.

After some consideration and reading I decided my options were either 1) assume the relay is the problem and spend about $70 for that stupid little thing, or 2) bang the relay on the sidewalk and see if that would fix it. #2 won out! I smacked that little thing on the sidewalk and put it back in and sure enough my air condition is back! I seriously couldn't believe it. My Air Conditioner had been going in and out for over a year, and a couple months ago when I took the advice of this thread it just worked! My Air Conditioner only went out once since then and I did the same fix and sure enough it worked again. Knock on wood it'll keep working for awhile longer and hopefully for another few years until I get a new car. Either way, I'm thrilled that I managed to fix such a significant thing with such a ridiculous fix.

Thanks again everyone!

My 03 Runner with 90,000 miles just started this ac blinking tonight. I was curious if this relay is a direct replacement?? I seems to have one extra "tab" sticking out of the bottom.

I love this web site!

Jeff

The ac relay will fix your problem if you need one I can tell you where you can get one for 24 dollars

[email protected]

Thanks to yabedud for the relay info. I ordered two from Digi-Key and got them in two days. I did have to cut the middle "tab" off to make it fit but they work fine. Cant beat the price!!

Thanks!

I am a new member here and have the blinking AC light on my 03 4-runner sport. My problem is I am not sure what relay it is to replace, on my cover there is not a relay that says AC or anything like that, I have swapped all of the relays around with the fog light relay and still the light is blinking. Can anyone tell me if the AC relay is in the box under the hood where I am looking or is it somewhere else. Thanks for the help and I am sure I will be back asking other questions...

If you need a relay save yourself some money and order a couple of these, RELAY AUTO SPDT MICRO ISO 12VDC - G8H-1C4T-R-DC12

You need to remove the extra middle pin, but they work fine and our very cheap!

Just want to thank drmorbius and jstutz101 for the quick help, I thought I checked all of the relays but obviously after "rechecking" the one that is the AC relay it now works, I appreciate the help and quick responses, I am sure I will be using this site for other things also. Great site!