HOW TO: Disable TPMS dash light (TPMS Delete)
#61
Intermediate
#62
Intermediate
#63
Super Moderator
Not sure if from a recent OBD Link or firmware update but mine were reading 0 PSI as well. It has been a month or so since I last used it.
I had to do a PID rescan on TPMS network. Go into Settings - Vehicle Editor and all the way at the bottom you will see the PID rescan button
I had to do a PID rescan on TPMS network. Go into Settings - Vehicle Editor and all the way at the bottom you will see the PID rescan button
#64
Intermediate
Acrad : Did you choose 'Tire Pressure Monitor' under the Enhanced Network from Settings and the run 'Rescan Supported PIDs' ?
That's what I did and then clicked on SAE PIDs under Supported PIDs and I'm not seeing the last screen shot you posted... posting my screen shots in a bit
That's what I did and then clicked on SAE PIDs under Supported PIDs and I'm not seeing the last screen shot you posted... posting my screen shots in a bit
#65
Super Moderator
On mine
- Connect to TPMS network
- Settings
- Vehicle Editor
- Tire Pressure Monitor (Enhanced Network should already be selected)
- At bottom of that same Vehicle Editor screen is the Rescan button. This won't show up unless the app is actually connected to vehicle through the OBD dongle.
- Connect to TPMS network
- Settings
- Vehicle Editor
- Tire Pressure Monitor (Enhanced Network should already be selected)
- At bottom of that same Vehicle Editor screen is the Rescan button. This won't show up unless the app is actually connected to vehicle through the OBD dongle.
#66
Intermediate
#67
Intermediate
Damn that too forever!!
Any idea on how to determine which ID corresponds to which wheel ?
Thanks a lot Acrad ! I really appreciate the help!!
Any idea on how to determine which ID corresponds to which wheel ?
Thanks a lot Acrad ! I really appreciate the help!!
#68
Super Moderator
All I can say is drop pressure in one and look for PSI change to determine which ID is which. That ID1 is definitely defective. I had one in an Infiniti years ago that read like 7-8 PSI low.
The following users liked this post:
m5rahul (07-15-23)
#69
Intermediate
Sorted the IDs and found the culprit.. Now, since I still haven't located the darn TPMS ECU ( Why couldn't Lexus leave it in the same place as previous years !! ) .. I just might have them all replaced instead of the one that died only to have the rest follow suit..
Wondering if it's okay to go with after market ones over OEMs ? Also, is it fair to assume they will have to be programmed using TS ?
Wondering if it's okay to go with after market ones over OEMs ? Also, is it fair to assume they will have to be programmed using TS ?
#70
Super Moderator
IIRC some have gone 3rd party
Might be some info in this thread
https://www.clublexus.com/forums/gx-...-concerns.html
I just used some OEMs
Might be some info in this thread
https://www.clublexus.com/forums/gx-...-concerns.html
I just used some OEMs
#71
Intermediate
Okay so stopped at the dealer ( needed a road force balance... again.. sigh ) and while test driving with the tech, asked him about the TPMS ECU's location. He gave me a print out of it, and I'm attaching it here for future reference for anyone who may need it.
This applies to model years 2018-2019 ONLY
2018-2019 GX 460 TPMS ECU Location
This applies to model years 2018-2019 ONLY
2018-2019 GX 460 TPMS ECU Location
The following 3 users liked this post by m5rahul:
#72
- Disconnected the unit ( just pulled the tab ), fired up the vehicle... and the TPMS light stayed on, but no CEL came up so .. yeah.
- Then, went ahead and stripped the yellow and red wires and connected a jumper, in vain !! Perhaps I should've tried other combinations, but in the process of stripping the yellow wire I accidentally cut it and was out of butt connectors so had to make a home depot run, and then had a work meeting so had to stop. Gah!!
- What I did do though after the failed attempt, was scan using the OBDLink MX+ and it showed a C2121 code ( No Signal from Transmitter ID1 in Main Mode ), and I cleared it..and the TPMS light went off once I restarted the vehicle. In hindsight, maybe I shouldn't have done this prior to working the other wires ( iirc, there is a dark *cherry* red, a white and blue, apart from the yellow and red one that did not work )
Quite sure the TPMS light will be back ( I hope it doesnt! lol ) soon enough and I'll be at it again. Perhaps, this time I'll make a video and take some pics of the process!
I am wondering if the TPMS receiver / antenna / ECU are all the same ?
Another reason you 2020+ GX owners are so lucky!
- Then, went ahead and stripped the yellow and red wires and connected a jumper, in vain !! Perhaps I should've tried other combinations, but in the process of stripping the yellow wire I accidentally cut it and was out of butt connectors so had to make a home depot run, and then had a work meeting so had to stop. Gah!!
- What I did do though after the failed attempt, was scan using the OBDLink MX+ and it showed a C2121 code ( No Signal from Transmitter ID1 in Main Mode ), and I cleared it..and the TPMS light went off once I restarted the vehicle. In hindsight, maybe I shouldn't have done this prior to working the other wires ( iirc, there is a dark *cherry* red, a white and blue, apart from the yellow and red one that did not work )
Quite sure the TPMS light will be back ( I hope it doesnt! lol ) soon enough and I'll be at it again. Perhaps, this time I'll make a video and take some pics of the process!
I am wondering if the TPMS receiver / antenna / ECU are all the same ?
Another reason you 2020+ GX owners are so lucky!
Here is a picture from my trials to show exactly which wires.
Last edited by Arailt; 08-04-23 at 11:39 AM.
The following 2 users liked this post by Arailt:
LexusToyo99 (12-04-23),
m5rahul (08-07-23)
#73
Quote from TheNomad:
From this I read that the TPMS signal wire is the Yellow and a 5V power wire is Red on my 2013 GX. Did I get that correct? Because I did the Yellow and pink and that is not working.
From this I read that the TPMS signal wire is the Yellow and a 5V power wire is Red on my 2013 GX. Did I get that correct? Because I did the Yellow and pink and that is not working.
#74
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