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Another TPMS Light Question

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Old Mar 23, 2022 | 05:34 PM
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Default Another TPMS Light Question

I read through some threads, and understand that the TPMS reset switch wasn't standard until the 2007 year model. I have a 2006.

I just got a new set of shoes, and upon leaving the store, and all of the way home, the tire light is on and about every minute or so the system emits a high pitch beeping.

The timing is too coincidental. Any thoughts on what they may have done, what I can check or how to make it stop?

Thanks
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Old Mar 23, 2022 | 06:55 PM
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Almost no tire stores can program TPMS sensors in the early years of the SC430. You will either have to:
a) disconnect the TPMS control module in the console or
b) use Techstream to register the sensors (here I am assuming they put in new sensors?).

I believe the beeping sound is what happens when the TPMS thinks the tire is flat. My experience was that the light came on for low pressure then beeping started for zero or very low pressure (sort of helpful distinction with run-flat tires).
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Old Mar 24, 2022 | 05:36 AM
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Originally Posted by oneround
Almost no tire stores can program TPMS sensors in the early years of the SC430. You will either have to:
a) disconnect the TPMS control module in the console or
b) use Techstream to register the sensors (here I am assuming they put in new sensors?).

I believe the beeping sound is what happens when the TPMS thinks the tire is flat. My experience was that the light came on for low pressure then beeping started for zero or very low pressure (sort of helpful distinction with run-flat tires).
Thank you. They did not replace the sensors. I guess I may just disconnect the control module. Will do research on how to do so. I just need this noise to stop before making a trip this weekend.

I don't understand why any reprogramming would need to be done if they just replaced the tires and left everything else the same?
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Old Mar 24, 2022 | 05:52 AM
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Originally Posted by FatBuoy
...

I don't understand why any reprogramming would need to be done if they just replaced the tires and left everything else the same?
According to the OEM service manual, it can do that if a sensor totally fails. Either one (or more) just died, or they damaged it putting the new tire on. You might be able to get them to spring for a new sensor if it was an immediate thing on startup. You would need techstream to find the bad one and then to program a replacement.
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Old Mar 24, 2022 | 06:04 AM
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Originally Posted by oneround
According to the OEM service manual, it can do that if a sensor totally fails. Either one (or more) just died, or they damaged it putting the new tire on. You might be able to get them to spring for a new sensor if it was an immediate thing on startup. You would need techstream to find the bad one and then to program a replacement.
Awesome, thanks! I'll call today. In the interim, I found the sticky about this and just unplugged the two plugs on the module. Light and beeps gone. Another win for ClubLexus!
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Old Mar 24, 2022 | 06:06 AM
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My 1st thought is that they damaged a sensor(s). Unfortunately that happens too often.
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Old Mar 24, 2022 | 06:52 AM
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Here's another twist- just remembered this.

Prior to this happening, if I stayed at a high rate of speed for a bit (won't disclose what I constitute as high) that light would come on until I slowed her back down. No chime in these instances. Could that have been an early warning sign of failure? And if so, why just at high speeds?
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Old Mar 24, 2022 | 09:11 AM
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Originally Posted by FatBuoy
Here's another twist- just remembered this.

Prior to this happening, if I stayed at a high rate of speed for a bit (won't disclose what I constitute as high) that light would come on until I slowed her back down. No chime in these instances. Could that have been an early warning sign of failure? And if so, why just at high speeds?
From the FSM:

If the warning light is lit during high speed driving, it may go out when the speed is decreased to intermediate
or lower speeds (The pressure−increase−indicated−speed or less). (If the vehicle is driven
at higher speeds again, the warning light will light up again. Therefore, increase the air pressure to the
specified value prior to high speed running.)
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Old Jun 17, 2022 | 06:08 PM
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any shop with autel scan tool can program early lexus sc 430 tpms i just finished my car
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Old Jun 17, 2022 | 07:08 PM
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Originally Posted by heymomx2
any shop with autel scan tool can program early lexus sc 430 tpms i just finished my car
Autel is supporting reprogramming on 02-05? Do you know which sensors they used? This is great news if there is some way to get that done without TechStream.

Paul
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Old Jul 24, 2022 | 04:24 AM
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oem tpms only on sc 430 they are still out there dealer or worldpac sells them color coded cant use aftermarket not even autel tpms
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