help please!
Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
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From: NY
help please!
my 2000 dome lights, radio/cd player, lcd screen, and preset seat ption is not working checked all fuses to find all are good could it be a wiring problem or a relay or something? Please help. Thanks in advance!
CL Community Team
Joined: Apr 2001
Posts: 16,559
Likes: 1,385
From: Austin, TX
If no one has messed with the wiring, then I very much doubt that there is a problem with wiring.
There are two location of fuses ... one by the left knee of the driver and the other in the engine compartment.
Sometimes it is hard to tell the fuse is blown or not. Try replacing the ACC fuse with a spare of the same rating.
Also, share with us what triggered the problem.
Salim
There are two location of fuses ... one by the left knee of the driver and the other in the engine compartment.
Sometimes it is hard to tell the fuse is blown or not. Try replacing the ACC fuse with a spare of the same rating.
Also, share with us what triggered the problem.
Salim
Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
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From: NY
thanks Salim will get on that today I have a fuse tester that I bought from advanced auto parts i will go through each set of fuses again just to make sure. I will also swap out the acc fuse and get back to you later.
Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
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From: NY
I checked every single fuse one by one with tester and eye, all are in good shape. I even took out the ecu fuse for a few minutes, nothing. I give up 
I guess I will do the thing I did not want to do.That is take it to an electrician it is really frustrating. something that seems so easy to solve I cannot figure it out every thing else works even the sunroof 
I guess I will do the thing I did not want to do.That is take it to an electrician it is really frustrating. something that seems so easy to solve I cannot figure it out every thing else works even the sunroof
Racer
Joined: Oct 2009
Posts: 1,298
Likes: 324
From: nj
I don't know if it is 'that easy to solve'.
I looked over the service guide and i could not see the commonality among the mentioned items.
You tested if the relevant fuses were good. Did you test if there was power present?
I looked over the service guide and i could not see the commonality among the mentioned items.
You tested if the relevant fuses were good. Did you test if there was power present?
Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
Likes: 0
From: NY
Ive read in several places I believe on here as well that the dome lights, cd player, and display screen are all on the same circuit. but again I checked every single fuse by eye and tester. How do I test for power as you stated.
CL Community Team
Joined: Apr 2001
Posts: 16,559
Likes: 1,385
From: Austin, TX
I have yet to lay my hands on electrical diagram for the RX. One of these days ...
In any case the connectors and wires are pretty robust on Lexus in general.
Some wires (circuits) have fusible links in addition to the fuses. You can put a voltmeter on supply side and see 12v on it. If the fuse is good you should get 12v on the load side as well. Having the circuit diagram would be useful in tracing the point at which 12v disappears.
Did I miss your post about what caused the loss of juice?
Salim
In any case the connectors and wires are pretty robust on Lexus in general.
Some wires (circuits) have fusible links in addition to the fuses. You can put a voltmeter on supply side and see 12v on it. If the fuse is good you should get 12v on the load side as well. Having the circuit diagram would be useful in tracing the point at which 12v disappears.
Did I miss your post about what caused the loss of juice?
Salim
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Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
Likes: 0
From: NY
I have yet to lay my hands on electrical diagram for the RX. One of these days ...
In any case the connectors and wires are pretty robust on Lexus in general.
Some wires (circuits) have fusible links in addition to the fuses. You can put a voltmeter on supply side and see 12v on it. If the fuse is good you should get 12v on the load side as well. Having the circuit diagram would be useful in tracing the point at which 12v disappears.
Did I miss your post about what caused the loss of juice?
Salim
In any case the connectors and wires are pretty robust on Lexus in general.
Some wires (circuits) have fusible links in addition to the fuses. You can put a voltmeter on supply side and see 12v on it. If the fuse is good you should get 12v on the load side as well. Having the circuit diagram would be useful in tracing the point at which 12v disappears.
Did I miss your post about what caused the loss of juice?
Salim
By the way, if helps with info at all. I bought a multiple fuse pack with the yellow tester from advanced auto parts. Is this tester reliable as the voltmeter you mentioned?
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Racer
Joined: Oct 2009
Posts: 1,298
Likes: 324
From: nj
salim, google rx300 body electrical pdf. It's not the full color coded electrical diagram but it is very helpful.
primo, the fuse tester is a continuity tester. salim is suggesting you use a voltmeter to check the voltage on the supply and load side of the fuse. The body electrical guide said the same thing.
primo, the fuse tester is a continuity tester. salim is suggesting you use a voltmeter to check the voltage on the supply and load side of the fuse. The body electrical guide said the same thing.
Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
Likes: 0
From: NY
Well just to inform you guys. I took it to the electrician today, they said definitely a wiring problem. they still have it.I told them to keep it over night, being that they have not yet found the problem. They think it is a ground loose or wire touching some where. The problem there having is finding it. So hopefully by tomorrow all will be good. Will keep you informed. 
Thread Starter
Driver School Candidate
Joined: Apr 2012
Posts: 17
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From: NY
Alright. Issues solved finally. 
The problem was corroded wires, and it now works after 453.60 Didn't expect to pay that much, but hey as they say you gotta pay to play. Thanks all for support and time. 
The problem was corroded wires, and it now works after 453.60 Didn't expect to pay that much, but hey as they say you gotta pay to play. Thanks all for support and time.
CL Community Team
Joined: Apr 2001
Posts: 16,559
Likes: 1,385
From: Austin, TX
Get the full worth of the money you spent. Ask where the corrosion exactly was. Just because you mentioned auctioned in the past, my concern is that there may be more trouble areas. Had it been the tail lamp, one can think of it as one time issue due to leaking lens cover. Here we are talking about a connection in the cabin or under the hood.
Salim
Salim
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