Brunoski909 Posted June 25, 2005 Share Posted June 25, 2005 Hello everyone, I bought a 1990 LS400 last fall with 83,000 miles in pristine condition, but have had one problem bugging me since then. The remote keyless entry system seems to decide not to work for weeks at a time, and then will suddenly work again. I suspected the battery in the key was in need of replacement, but that didn't seem to do the trick. Any suggestions on how to fix this would be appreciated. Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted June 25, 2005 Share Posted June 25, 2005 Here is an old thread on how the buyer of my 90 LS fixed the keyless entry: http://us.lexusownersclub.com/forums/index...2188&hl=keyless There was a lengthy diagnostic procedure for the keyless entry system in the 90 LS 2-volume repair manual set I passed on to the new owner. A variety of issues can cause the keyless entry system to fail. Quote Link to comment Share on other sites More sharing options...
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