This 2003 Toyota 4Runner came in with the complaint that the a/c stops cooling after a while and the a/c lights on the dash start flashing. This is a common problem on later model Toyota’s in general. Most of the time it is just a failed compressor clutch relay but sometimes as in this case there is an updated part to correct the condition according to Toyota.
The MG CLT relay (magnetic clutch) is the white one in the center of the following picture.
The new relay I installed is black in color and it is and aftermarket design. I have used quite a few of these and have had no problems as of this post. There is a big difference in the cost of the original Toyota part and the aftermarket version.
The fuse box cover is marked MG CLT for the magnetic clutch relay. A quick test drive to confirm the problem was resolved and this one was done.
I just replaced the AC clutch relay, cost me $15.00 from Auto Zone,works great! Would have cost me $75.00 for the dealer just to look at it. I’m not riding in HELL HEAT anymore! I can’t thank you enought, A MILLION THANKS!!!
Hi Jeff,
Your 2007 4Runner uses a similar relay and it would be reasonable to assume that it may have failed. Many times there are “Identical Relays” (same part numbers) in the box that have lesser functions. If so, swap them and see if the a/c problem is rectified. If not have someone else start the engine and turn on the a/c while you feel the relay for a distinct click. If a click is felt and all associated fuses are good then the relay would be highly suspect.
Fingers or a pair of pliers. If you use pliers be sure to not crush the relay.
WOW – I will have to try this. I actually took my car to the dealer, they charged me $160 diag and told me I the (AC) Clutch needs to be replaced, $1200 !!
Do you need a special tool to remove the relay?
For anyone with a 2007 Toyota 4 Runner with the same flashing A/C light, would a similar fix work in regards to the magnetic clutch relay?