Rogerm Posted October 9, 2007 Share Posted October 9, 2007 1999 RX300 Today I experienced loss of cooling. ( outside temperature was 91 F.) 1. The compressor failer light did not flash on the "auto" button. So I think the compressor is ok. 2. The cooling came back on after being turned off for from 10 min. in one case to 1 hr. in the second. and the setting reduced temp to 65 F or "cold". It came on and ran well for 45 min. until I parked it for the night. I suspect it may have something to do with the "termostat" or computer. Has anyone experienced this? Roger Quote Link to comment Share on other sites More sharing options...
wwest Posted October 9, 2007 Share Posted October 9, 2007 1999 RX300Today I experienced loss of cooling. ( outside temperature was 91 F.) 1. The compressor failer light did not flash on the "auto" button. So I think the compressor is ok. 2. The cooling came back on after being turned off for from 10 min. in one case to 1 hr. in the second. and the setting reduced temp to 65 F or "cold". It came on and ran well for 45 min. until I parked it for the night. I suspect it may have something to do with the "termostat" or computer. Has anyone experienced this? Roger If the engine coolant temperture raises above "normal" the A/C compressor will be automatically disabled. Most commonly caused by a failed or intermittent radiator cooling fan. Quote Link to comment Share on other sites More sharing options...
Rogerm Posted October 11, 2007 Author Share Posted October 11, 2007 1999 RX300Today I experienced loss of cooling. ( outside temperature was 91 F.) 1. The compressor failer light did not flash on the "auto" button. So I think the compressor is ok. 2. The cooling came back on after being turned off for from 10 min. in one case to 1 hr. in the second. and the setting reduced temp to 65 F or "cold". It came on and ran well for 45 min. until I parked it for the night. I suspect it may have something to do with the "termostat" or computer. Has anyone experienced this? Roger If the engine coolant temperture raises above "normal" the A/C compressor will be automatically disabled. Most commonly caused by a failed or intermittent radiator cooling fan. My temperature gage was about middle...and I think it is correct. The problem occured when I started the car cold. Then today twice, I used the car and the A/C came on. Today... I had put it in AUTO and did not hit off and then hit the A/C button. Monday I had been hitting the OFF button, then the A/C button and playing with the fan and temp settings. ???/ Quote Link to comment Share on other sites More sharing options...
Rogerm Posted May 24, 2009 Author Share Posted May 24, 2009 1999 RX300Today I experienced loss of cooling. ( outside temperature was 91 F.) 1. The compressor failer light did not flash on the "auto" button. So I think the compressor is ok. 2. The cooling came back on after being turned off for from 10 min. in one case to 1 hr. in the second. and the setting reduced temp to 65 F or "cold". It came on and ran well for 45 min. until I parked it for the night. I suspect it may have something to do with the "termostat" or computer. Has anyone experienced this? Roger If the engine coolant temperture raises above "normal" the A/C compressor will be automatically disabled. Most commonly caused by a failed or intermittent radiator cooling fan. My temperature gage was about middle...and I think it is correct. The problem occured when I started the car cold. Then today twice, I used the car and the A/C came on. Today... I had put it in AUTO and did not hit off and then hit the A/C button. Monday I had been hitting the OFF button, then the A/C button and playing with the fan and temp settings. ???/ --------------- Followup : I had to have TWO computer boards Replaced !!! ( They tried the first, called me, then when I went to pick up the car they said they tested it and their was still a problem and had to do the second. o The instrument panel one which included A/C controls o The primary computer for the Lexus RX300. Hopes this helps someone. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.