Have a 2001 LS. When I got it, Fuel Gauge, gas door opener, and trunk opener, were all inop. All fuses good, all circuits hot. Well after a week or so, I'm driving down the road and the fuel gauge starts to work. So when I returned home checked the gas door button and the trunk release button and they both worked! They all worked for about 2 days, then went inop again. Since all three are from a different power source. I am guessing a bad ground. So now the question..... Can anyone tell me where to look to where those circuits ground to the body? I do have a lift if they are located underneath. But I spent some time looking yesterday and could not find them. Thanks in advance!

 

Start searching;

https://cardiagn.com/lexus-ls-430-20...repair-manual/

 

 

I found that site yesterday, but it wanted me to upload some type of software before I could get to anything. I was on my company laptop and was afraid of catching a nasty on it.

 

Close the ad that will pop up, then give the PDF a minute to load and you'll see it on the screen.