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electrical problems sc430

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Old Aug 8, 2020 | 01:24 PM
  #16  
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Start with checking, cleaning, tightening all your cables/connections at the battery, and be certain your battery is in good condition and well charged. Then, work your way back and check, clean, and re-seat all of the wiring harness(es) connectors. This is a monumental task and the reason everyone says to stay away from vehicles that have been flooded. Good luck!
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Old Aug 8, 2020 | 01:45 PM
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Originally Posted by Wilson2000
Start with checking, cleaning, tightening all your cables/connections at the battery, and be certain your battery is in good condition and well charged. Then, work your way back and check, clean, and re-seat all of the wiring harness(es) connectors. This is a monumental task and the reason everyone says to stay away from vehicles that have been flooded. Good luck!
learned a valuable lesson.thanks
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Old Aug 9, 2020 | 06:17 AM
  #18  
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This might help

https://diposlong.com/products/digit...iagnostic-tool

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Old Aug 10, 2020 | 11:05 AM
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Hey JParrish,

Based on the number of things that all went wrong, I assumed it was a flood car.

How high was the waterline inside the car? Was it up to the center console, or was it halfway up, or only a couple of inches? Depending on how high the water went, helps eliminate which modules were affected.

I think you have one of three problems (or maybe all three)

Option #1 If you are lucky, it is a rusty ground, which is messing up your electrical system. If you fix this, then your systems will come back. Cross your fingers and look at this grounding diagram.
https://www.clublexus.com/forums/att...ng-diagram.pdf

Option #2, Your wire harness connectors are corroded. You need to disconnect them and spray Contact Cleaner in them. You need to clean them REALLY well.
Amazon Amazon

Option #3 This is most likely your problem, since the problems started 6 months after the flood. The corrosion from your contacts, are eating their way up the wires. The wires are bad and unfixable. The solution is to scrap the car, or replace your wiring harnesses. It is possible you can just splice them above the waterline, but that is not a definite solution and a lot of electrical work.

Again, if you are lucky, it is option number 1.

Did you say you sold the car? I am inferring from your post that the buyer wants you to warranty the car. Since these problems are going to plague the car forever as more and more wires go bad, you may want to work out a deal with the buyer and take the car back. Then you can part out the car to recoup your initial investment.
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Old Aug 10, 2020 | 11:27 AM
  #20  
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It only had water just above floor mats.thats why I bought it not much water now I know to stay away.one person on forum had same problem but changed theft module and it fixed problem I tried but no luck
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Old Aug 10, 2020 | 02:00 PM
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Where do you find connectors
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Old Aug 10, 2020 | 04:42 PM
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Originally Posted by jparrish
Where do you find connectors
Are you asking where do you find connectors to replace the existing, or are you asking where do you look for them on the vehicle?

They aren't replaceable, per say, but you can clean and re-seat them. You will typically find them throughout the vehicle, anywhere there is a wiring harness. There are a lot, so this is a monumental task. Begin with cleaning the ones below the flood line, but as Daryl said above, the water and corrosion can travel along a wire or wiring harness.

Cleaning will require electrical contact cleaner, compressed air, small pipe cleaners, tiny brushes, eye loupes (to magnify things), and a whole lot of time and patience!
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Old Aug 10, 2020 | 04:49 PM
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connectors to replace
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Old Aug 10, 2020 | 05:15 PM
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Originally Posted by jparrish
connectors to replace
As stated earlier, you can't replace connectors per say. With special tools, you can sometimes replace male and female pins inside a connector, but this is best left to professionals. The connectors are integral with their respective harnesses. Many electrical parts, such as sensors, include a wire(s) lead and come with half of a connector, which connects to an on-board harness.

Hope this helps...
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Old Aug 12, 2020 | 09:22 AM
  #25  
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Originally Posted by jparrish
First time user.need help. First of all my sc430 fob dont work,top wont work,tilt steering wont work,mirrors wont adjust,passenger window wont work or locks dont work.please help.
Battery was my issue when top would not work. got a new battery, fixed it!
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Old Aug 12, 2020 | 10:05 AM
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Originally Posted by jparrish
connectors to replace
You would have to call a junk yard and buy a used wiring harness. There are probably fifty wiring harnesses in your car, so you need to know which one you are looking for. If you think it is the anti theft module, you can start there.

But from the questions you are asking and the fact you skipped the cleaning option, I think it maybe better if you go to an automotive electrical expert. You can google one near you. These guys work with car electrical systems and are awesome. They will be able to pinpoint your problems and help you decide on the best route to take. It might cost you a little money, but at least you can find out what your problem is. Chances are, having them look at your car will cost you less than a brand new Anti Theft Module
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Old Aug 12, 2020 | 10:51 AM
  #27  
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Originally Posted by dshngdaryl
you would have to call a junk yard and buy a used wiring harness. There are probably fifty wiring harnesses in your car, so you need to know which one you are looking for. If you think it is the anti theft module, you can start there.

But from the questions you are asking and the fact you skipped the cleaning option, i think it maybe better if you go to an automotive electrical expert. You can google one near you. These guys work with car electrical systems and are awesome. They will be able to pinpoint your problems and help you decide on the best route to take. It might cost you a little money, but at least you can find out what your problem is. Chances are, having them look at your car will cost you less than a brand new anti theft module
i toik it to a specilist.i will let you kniw wgat i found out.thanks
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Old Aug 12, 2020 | 02:37 PM
  #28  
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Originally Posted by waxgelman
Battery was my issue when top would not work. got a new battery, fixed it!
I'm seeing this more and more in modern vehicles. Battery issues can wreak havoc on the electronics and cause all types of problems/symptoms.
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Old Aug 26, 2020 | 09:24 AM
  #29  
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Default e l electrical problems

I would like to thank everybody for there concerns but I fixed my car.it was the passenger seat module giving me those problems. Now my car is working fine.
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Old Aug 26, 2020 | 12:05 PM
  #30  
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Originally Posted by jparrish
I would like to thank everybody for there concerns but I fixed my car.it was the passenger seat module giving me those problems. Now my car is working fine.
Thanks for the update. It's great to hear you got your car working. That totally makes sense, since it was near the waterline. Are there any other modules under the seats? You might want to watch those too.
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