RogerBoyd

Well - I didn't get any replies but I did figure it out. Just in case someone else needs this information, here goes: The bad relay is part number 90987-02022 and the label inside the fuse box lid is "MG CLT" which stands for "magnetic clutch". It has to be replaced with part number 90987-02028 (according to LEXUS Technical bulletin EL009-05) which will cost between $70 and $100 depending on which dealer you go to (Toyota carries this too). I bought one, plugged it in and voila, the blinking stopped and the air conditioning started working again. Hope this helps someone.

where is the ac magnetic clutch relay on a lexus gx470? to clarify, can anyone tell me which relay in the fuse box is the one to be replaced. There are several with the part number 90987-02022 and none are labeled A/C - the labels are: CDS FAN; FR FOG; MG CLT; AC115V INV; C/OPN; DOME; EFI I'm guessing it's either CDS FAN or MG CLT but am not sure. Can anyone help me? Cheers

I'm sure that by now you have successfully wired your trailer hitch. Any chance you can share how you did it? All I need are trailer lights.