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Models:
'02 - '04 ES 300 & ES 330, '03 - '04 GX 470
Introduction
This bulletin is to provide information regarding countermeasures to the A/C magnetic clutch relay for A/C light flashing (inoperative A/C) issues on some vehicles equipped with a magnetic clutch compressor.
Applicable^ 2002 - 2004 model year ES 300 and ES 330 vehicles.
^ 2003 - 2004 model year GX 470 vehicles.
Parts Information
Inspection procedure
1. Locate the A/C magnetic clutch relay.
2. Verify the part number printed on the side of the relay.
A. If the part number is 90987-02022, please replace the relay with the countermeasured relay P/N 90987-02028.
B. If the part number does not match 90987-02022, then please diagnose problems by referring to the Technical Information System (TIS): applicable model year and vehicle Repair Manual: Air Conditioning: Troubleshooting.
NOTE: Relays other than P/N 90987-02028 should not be used for this application.
Warranty Information
Applicable Warranty:
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint
My A/C wouldn't work one day; the light on the AC button was flashing. I came to the forum.
I went to the local NAPA Auto Parts with the information I took from this forum, purchased a magnetic clutch relay, took out the old one and installed the new one with needle nose pliers, and now my air is as good as new. I paid $24 in Austin, Texas.
I just want to thank each one of you for sharing you knowledge and experiences. I know I saved a lot of money for about three minutes of work!
I have Lexus ES300 2002 model. Couple of days back, A/C light started to flash then A/C used to off. I have already changed the Relay but it is not working. If I turns on A/C then it blows hot air and then after a few moments A/C light start blinking and then it goes off.
- Bought this aftermarket relay switch and installed it myself and the
AC unit started working and cold air was coming.
Thanks for your help.
(P.S.: I tried changing the cabin air filter to see if that fixes, it did not help)
( I tried doing an AC recharge myself by getting the canister/gauge from walmart,
but it wasn't working because the AC compressor itself wouldn't turn ON).
Replacing the Magnetic Clutch relay was the fix.
Last edited by johnpau201; 05-10-22 at 05:18 PM.
Reason: added more details