TPMS Light On - How to Disable
01-11-20, 11:48 AM
#62
Driver School Candidate
Join Date: Jan 2020
Location: ca
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A little late to the game, but just finished. Works! Or should I say the stupid yellow light finally does not work. So tired of looking at that light. Been searching for solution. Thanks so much for posting. I am handy, but no mechanic. Took my time but finished in about an hour. Most of that time was just making sure I did it right. No lights on dash for first time in may years.
01-11-20, 12:22 PM
#63
Intermediate
[QUOTE=2007es3501;10704306]A little late to the game, but just finished. Works! Or should I say the stupid yellow light finally does not work. So tired of looking at that light. Been searching for solution. Thanks so much for posting. I am handy, but no mechanic. Took my time but finished in about an hour. Most of that time was just making sure I did it right. No lights on dash for first time in may years.[/what about the BIG red triangle and the check system display? was this corrected as well?
01-13-20, 02:16 PM
#65
Intermediate
Yes, but that little yellow TPMS light isnt the only one. the "check system" and red alert triangle also trip because of the TPMS, so my question was did those lights also clear or did you simply short the circuit for the yellow light or did you bypass the whole system? im a little apprehensive to try, ive ripped the dash open twice before for fixes that didnt work.
01-16-20, 12:53 PM
#66
09-11-21, 08:03 PM
#70
Intermediate
i would say if thats the harness, then it would be the only one considered orange. if doesnt work bit the bullet and just make the trunk bomb, or be like me and still own the car 2 years later and still wont by the stupid ****ing things but still looking at the dashboard christmas tree. the bomb guaranteed to work, and you cant swap out winter tires without switching or owning 8 sensors . its the way to go. some vehicles it was easy to bypass it,but this lexus forget it couldnt find the answer.
09-20-21, 08:44 AM
#71
Driver School Candidate
Join Date: Sep 2021
Location: QC
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Been like that for more than 5 years
Kind of got used to the Tire Light... after a few years. Got ready to do the mod, tried to find the connector on the drivers side.... wrong side. While cicling around the car to get to the passenger side I saw the trunk was opened and decided to check the spare....
Problem fixed. Try not to fall off your chair laughing at me
Problem fixed. Try not to fall off your chair laughing at me
09-20-21, 02:07 PM
#72
Pole Position
Regarding disabling of the TPMS light...I think of the warning light as a feature, not a bug. One can justify the bypass for any number of reasons, but don't think doing so is simply a personal choice. If one disables the light, runs over a nail, and ends up with a flat, it can lead to all kinds of situations that could endanger fellow motorists.
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Hayk (09-24-21)
09-22-21, 02:57 AM
#73
Go to costco tires and they will tell you which sensor is bad for free, at least mine did. buy the denso one for your car from amazon or rockauto and costco will install for like $20 or so. costco carries the pacific brand which i would have taken but for some reason they were perpetually out of them.
I think the dealership charges 250 or so per wheel/sensor but i did this for about 250 for all four wheels
I think the dealership charges 250 or so per wheel/sensor but i did this for about 250 for all four wheels
Last edited by cl206; 09-22-21 at 03:49 AM.
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jeff1rey (07-11-22)
11-24-21, 09:53 AM
#74
10th Gear
tpms ecu
Due to popular demand.............
Use at your own risk!
Disclaimer:
This is a how to disable the light on the dash. The code will still be present in the ECU but you will not get a warning. So if your tire(s) are low in pressure, have a leak, sensor or ECU malfunctions you will not get a warning on the dash - this is again your choice to make the warning disappear.
In USA, this is a must-have for all cars in order to be sold, in Canada the law is not in place yet...
It took me about 15 minutes to do and it was based on my research on Yaris (found on toyotanation forum). I adapted it for ES350 and performed it on my 2007 model (US vehicle that I bought in Canada).
How to:
1) Turn the car off completely. Remove the kick panel on passenger side. This is under the glove box and knee air bag. It removes by simply pulling on the cover and disengaging the clips. I worked from left to right and clip by clip. Do it slowly so that the clips don't break. You may need to remove the small light from the panel once removed if the harness on it is too short to work around.
2) Locate the TPMS ECU under the dash. It is an orange box with one wire harness going to it and it says something like tire pressure ECU on it. Disconnect the connector, the lock is on the top side.
3) On the top side of the harness, i.e. same side where the locking clip is, locate the blue wire. It is the second one from right in the photo above, and cut it further away from the connector (in case you want to reconnect it). Strip some insulation off from the end that is on harness (not the connector)
4) Next, remove some insulation from the orange wire (don't cut it). It is the left most wire in the connector per photo. Attach the blue to the exposed wire and insulate. I used a short piece of wire to make the connection. So blue connects to orange
4a) You can be creative here and install a 3-way switch, instead of a jump-wire, that you can toggle when using winter tires, etc. so to keep the light off and when you put the wheels with sensors back on to enable the light. The switch would toggle between the blue and orange and open/close circuit that way. I had no time to do it this time, but may be will come back to it before winter...
5) Connect the harness back into the ECU. Make sure the connector is locked in. Reinstall the kick panel (clips just snap in). Start your car and observe no light
Use at your own risk!
Disclaimer:
This is a how to disable the light on the dash. The code will still be present in the ECU but you will not get a warning. So if your tire(s) are low in pressure, have a leak, sensor or ECU malfunctions you will not get a warning on the dash - this is again your choice to make the warning disappear.
In USA, this is a must-have for all cars in order to be sold, in Canada the law is not in place yet...
It took me about 15 minutes to do and it was based on my research on Yaris (found on toyotanation forum). I adapted it for ES350 and performed it on my 2007 model (US vehicle that I bought in Canada).
How to:
1) Turn the car off completely. Remove the kick panel on passenger side. This is under the glove box and knee air bag. It removes by simply pulling on the cover and disengaging the clips. I worked from left to right and clip by clip. Do it slowly so that the clips don't break. You may need to remove the small light from the panel once removed if the harness on it is too short to work around.
2) Locate the TPMS ECU under the dash. It is an orange box with one wire harness going to it and it says something like tire pressure ECU on it. Disconnect the connector, the lock is on the top side.
3) On the top side of the harness, i.e. same side where the locking clip is, locate the blue wire. It is the second one from right in the photo above, and cut it further away from the connector (in case you want to reconnect it). Strip some insulation off from the end that is on harness (not the connector)
4) Next, remove some insulation from the orange wire (don't cut it). It is the left most wire in the connector per photo. Attach the blue to the exposed wire and insulate. I used a short piece of wire to make the connection. So blue connects to orange
4a) You can be creative here and install a 3-way switch, instead of a jump-wire, that you can toggle when using winter tires, etc. so to keep the light off and when you put the wheels with sensors back on to enable the light. The switch would toggle between the blue and orange and open/close circuit that way. I had no time to do it this time, but may be will come back to it before winter...
5) Connect the harness back into the ECU. Make sure the connector is locked in. Reinstall the kick panel (clips just snap in). Start your car and observe no light
03-13-22, 12:43 AM
#75
Driver School Candidate
Due to popular demand.............
Use at your own risk!
Disclaimer:
This is a how to disable the light on the dash. The code will still be present in the ECU but you will not get a warning. So if your tire(s) are low in pressure, have a leak, sensor or ECU malfunctions you will not get a warning on the dash - this is again your choice to make the warning disappear.
In USA, this is a must-have for all cars in order to be sold, in Canada the law is not in place yet...
It took me about 15 minutes to do and it was based on my research on Yaris (found on toyotanation forum). I adapted it for ES350 and performed it on my 2007 model (US vehicle that I bought in Canada).
How to:
1) Turn the car off completely. Remove the kick panel on passenger side. This is under the glove box and knee air bag. It removes by simply pulling on the cover and disengaging the clips. I worked from left to right and clip by clip. Do it slowly so that the clips don't break. You may need to remove the small light from the panel once removed if the harness on it is too short to work around.
2) Locate the TPMS ECU under the dash. It is an orange box with one wire harness going to it and it says something like tire pressure ECU on it. Disconnect the connector, the lock is on the top side.
3) On the top side of the harness, i.e. same side where the locking clip is, locate the blue wire. It is the second one from right in the photo above, and cut it further away from the connector (in case you want to reconnect it). Strip some insulation off from the end that is on harness (not the connector)
4) Next, remove some insulation from the orange wire (don't cut it). It is the left most wire in the connector per photo. Attach the blue to the exposed wire and insulate. I used a short piece of wire to make the connection. So blue connects to orange
4a) You can be creative here and install a 3-way switch, instead of a jump-wire, that you can toggle when using winter tires, etc. so to keep the light off and when you put the wheels with sensors back on to enable the light. The switch would toggle between the blue and orange and open/close circuit that way. I had no time to do it this time, but may be will come back to it before winter...
5) Connect the harness back into the ECU. Make sure the connector is locked in. Reinstall the kick panel (clips just snap in). Start your car and observe no light
Use at your own risk!
Disclaimer:
This is a how to disable the light on the dash. The code will still be present in the ECU but you will not get a warning. So if your tire(s) are low in pressure, have a leak, sensor or ECU malfunctions you will not get a warning on the dash - this is again your choice to make the warning disappear.
In USA, this is a must-have for all cars in order to be sold, in Canada the law is not in place yet...
It took me about 15 minutes to do and it was based on my research on Yaris (found on toyotanation forum). I adapted it for ES350 and performed it on my 2007 model (US vehicle that I bought in Canada).
How to:
1) Turn the car off completely. Remove the kick panel on passenger side. This is under the glove box and knee air bag. It removes by simply pulling on the cover and disengaging the clips. I worked from left to right and clip by clip. Do it slowly so that the clips don't break. You may need to remove the small light from the panel once removed if the harness on it is too short to work around.
2) Locate the TPMS ECU under the dash. It is an orange box with one wire harness going to it and it says something like tire pressure ECU on it. Disconnect the connector, the lock is on the top side.
3) On the top side of the harness, i.e. same side where the locking clip is, locate the blue wire. It is the second one from right in the photo above, and cut it further away from the connector (in case you want to reconnect it). Strip some insulation off from the end that is on harness (not the connector)
4) Next, remove some insulation from the orange wire (don't cut it). It is the left most wire in the connector per photo. Attach the blue to the exposed wire and insulate. I used a short piece of wire to make the connection. So blue connects to orange
4a) You can be creative here and install a 3-way switch, instead of a jump-wire, that you can toggle when using winter tires, etc. so to keep the light off and when you put the wheels with sensors back on to enable the light. The switch would toggle between the blue and orange and open/close circuit that way. I had no time to do it this time, but may be will come back to it before winter...
5) Connect the harness back into the ECU. Make sure the connector is locked in. Reinstall the kick panel (clips just snap in). Start your car and observe no light
