SC430 - 2nd Gen (2001-2010)

At times turn ignition on everything dead

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Old 05-07-23, 08:35 AM
  #16  
Raven01750
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LOL. Guys. I hope your right. But I went down this rabbit hole because dirty battery terminal contact symptoms are hard/no start, clicking of the starter solenoid relay etc. Not my car is DEAD! But I have been wrong before and will be many more times I'm sure. I hope they get back to us when they do find the problem because like I said, I have never heard of a problem like this on an SC before as they describe and I do like a good problem. 😏

Paul
Old 05-07-23, 10:47 AM
  #17  
Bgw70
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Originally Posted by Raven01750
LOL. Guys. I hope your right. But I went down this rabbit hole because dirty battery terminal contact symptoms are hard/no start, clicking of the starter solenoid relay etc. Not my car is DEAD! But I have been wrong before and will be many more times I'm sure. I hope they get back to us when they do find the problem because like I said, I have never heard of a problem like this on an SC before as they describe and I do like a good problem. 😏

Paul
Paul, the symptoms he describes can be a battery terminal not making a good connection…Harold and Daryl may be correct.
clean the terminals first…

Last edited by Bgw70; 05-07-23 at 10:52 AM.
Old 05-07-23, 11:11 AM
  #18  
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I almost hate to even continue responding on this because I absolutely respect all of you guys. And I know this sounds like I am just being defensive here. But would the door locks work to unlock the car if it was as the video describes? Interior lights until the key is turned? I'm not saying their wrong. But I am making an assumption (we know what assuming gets you) In fact several, that the owner after having had to remove the terminals more than once would have delt with that issue. That's why I did such a deep dive. I sincerely hope that their right. It's the easiest fix. I even considered dirty connection of the main wire to the battery clamp. Not just the clamp not being tight or corroded. That's the recommendation to wiggle the wires and harness. Regardless. I do hope they come back and gives us details of the fix.😉 And thanks for the video. 😁👍

Paul
Old 05-07-23, 11:22 AM
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And I just watched the video in full screen mode and the car does indeed have power when the owner first turns on the key. I have never seen anything like that before. If that does turn out to be the issue, I could have saved myself a whole lot of research! Thank You for showing me something I have never seen before In the automotive electrical world.

Paul
Old 05-07-23, 01:22 PM
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Anthony263
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There is this after market device that someone has placed onto the negative battery post.
it's all tight and secured
Old 05-07-23, 01:28 PM
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Anthony263
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I'm trying to upload pictures of this device but my files are to large
Old 05-07-23, 01:31 PM
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Anthony263
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Old 05-07-23, 01:32 PM
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Old 05-07-23, 01:33 PM
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Anthony263
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Do lexus sc430 s come with this from the factory?
Old 05-07-23, 02:09 PM
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Nope.

Paul
Old 05-07-23, 04:18 PM
  #26  
Bgw70
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Do you have one of these to clean the battery posts and terminals?
also, consider coating with dielectric grease…
you might want to consider removing that terminal…seems like they installed it to disconnect the battery without tools…you could leave it on, but coat the contact surfaces with the dielectric grease…it will stop all future corrosion.



Old 05-07-23, 04:23 PM
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Originally Posted by Anthony263
i am seeing corrosion in the terminal pic…again, i would consider removing it.

Last edited by Bgw70; 05-08-23 at 05:50 AM.
Old 05-07-23, 04:25 PM
  #28  
Harold57
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There's a lot of places in that device that would allow corrosion and contamination to get in there and create bad connections. Be sure to clean that up thoroughly also, even the threads on the screws/bolts.
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Old 05-07-23, 09:05 PM
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And to end the day I just wanted to say Thank You once again because today I learned something new. I had no idea until I saw the video that those particular symptoms could even be possible. I think the correct repair has been called out and that our job here is done. 😁👍

Paul
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Old 05-08-23, 08:40 AM
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Anthony263
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Replying to utube video
my terminal connections are tight and corrosion clear.
don't think this is my problem.
Still think it's the extra after market item


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