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Need help figuring out diagnostic code for 2002 LS430

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Old Apr 18, 2020 | 02:49 PM
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Default Need help figuring out diagnostic code for 2002 LS430

I just bought a 2002 Lexus LS430 for $4000 with 87k miles just got it yesterday there were no codes but today a code popped up as c1500 does anyone know what that code means and what the fix would be? I tried searching online for that code for a Lexus ands can't find any info
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Old Apr 18, 2020 | 03:33 PM
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C1500 Transfer Case Contact Plate "B" Encoder Circuit Failure

I checked this on a couple of websites. I also use an Innova OBD 2 scanner and you can look the codes up on their website.


https://www.innova.com/home/dtc-library
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Old Apr 18, 2020 | 04:13 PM
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Originally Posted by 02Legend
C1500 Transfer Case Contact Plate "B" Encoder Circuit Failure

I checked this on a couple of websites. I also use an Innova OBD 2 scanner and you can look the codes up on their website.


https://www.innova.com/home/dtc-library
Except an LS 430 doesn't have a transfer case.

To OP: are you sure about that code?
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Old Apr 18, 2020 | 04:27 PM
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Originally Posted by TriC
Except an LS 430 doesn't have a transfer case.

To OP: are you sure about that code?
I thought about that, and posted anyway. Thanks for jumping in and saying something. A P1500 comes up as "starter signal circuit malfunction".

OP: Ignore my original post please.
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Old Apr 18, 2020 | 04:33 PM
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Suggest initially clearing the code and checking that your battery connections are tight. If it comes back, check that fuses are secure.
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Old Apr 18, 2020 | 04:56 PM
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Originally Posted by TriC
Suggest initially clearing the code and checking that your battery connections are tight. If it comes back, check that fuses are secure.
Thanks I will definitely try that that's weird that c1500 popped up if there is no transfer plate though but that's definitely the code that popped up
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Old Apr 18, 2020 | 05:07 PM
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How did you pull the code info? Any chance you're using a store-bought code reader claiming compatibility with multiple vehicle brands...?
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Old Apr 18, 2020 | 05:10 PM
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Originally Posted by bradland
How did you pull the code info? Any chance you're using a store-bought code reader claiming compatibility with multiple vehicle brands...?
Yes that's exactly what I'm using so i take it those are not accurate then huh?
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Old Apr 18, 2020 | 05:26 PM
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I've never used one but I do remember other forum members pulling confusing codes with generic readers.
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Old Apr 18, 2020 | 05:30 PM
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Originally Posted by bradland
I've never used one but I do remember other forum members pulling confusing codes with generic readers.
Hmm if it is reading the wrong code and it sounds like it is I think I'll just have it checked out to see if there is a problem I have noticed a weird noise below the passenger seat
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Old Apr 20, 2020 | 11:46 AM
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Originally Posted by bradland
I've never used one but I do remember other forum members pulling confusing codes with generic readers.
You were right man it was throwing the wrong code the problem was an o2 sensor and wheel motion sensor also needed to get brakes, rotors, and a bearing done
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Old Apr 22, 2020 | 07:56 AM
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If you are replacing your bearing due to a bad wheel speed reading, check your speed sensor cable first - those are known to fail on both front LH and front RH sides. Cheap and easy to replace.
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Old Apr 22, 2020 | 07:58 AM
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Originally Posted by StanVanDam
If you are replacing your bearing due to a bad wheel speed reading, check your speed sensor cable first - those are known to fail on both front LH and front RH sides. Cheap and easy to replace.
Thanks for the info appreciate it!
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Old Apr 27, 2020 | 01:46 PM
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For future use
https://www.clublexus.com/forums/ls-...for-ls430.html

A sado masochist chose the location of the O2 sensor connections.

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