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PRO M question

761 Views 18 Replies 5 Participants Last post by  venomblue22
Ive had the system in my 1986 for a long time. But a small detail has bothered me.

My TPMS light hasn't gone on since I installed it. Any help would be appreciated.
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Sounds like maybe possibly the abs module isnt talking to the pro-m

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Ive had the system in my 1986 for a long time. But a small detail has bothered me.

My TPMS light hasn't gone on since I installed it. Any help would be appreciated.
I’ve actually heard of that issue before.
-My guess is that your blinker fluid reservoir low warning light is also not working; am I correct?
Don’t worry, cheap little 2K ohm 1/4watt resistors will fix both of your issues.
I’ve actually heard of that issue before.
-My guess is that your blinker fluid reservoir low warning light is also not working; am I correct?
Don’t worry, cheap little 2K ohm 1/4watt resistors will fix both of your issues.
thanks thats the first thing I checked but there are no leaks. I might have to check the calibration on the programmable output. Maybe go to a lighter weight tire? I wonder if the calibration is set for a lower ohms from the tire's rotational resistance?
Try changing the fluid. Maybe it's light on the electrolytes
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Try changing the fluid. Maybe it's light on the electrolytes View attachment 1096676

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I will try that. im using Target brand. ill bet that the pro m only wants OEM quality fluid.
I think the OEM is obsolete,. Maybe pro-m sells oe quality fluid???

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you guys are funny

OP, you simply do not have the updated harness with the quad tpms sensors. (tpms not included)

Then you send in your existing tpms sensors in to have them recalibrated to the ecu with a 128 point psi cal file

hardest part was instaling the 4 clock springs in each wheel well and running the four long sensors to them.

Pita install but i got it done.
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Damn I was hoping to do it the on the cheap without spending lots of money on something so small.. Hopefully Pro M can make the harness, I know that they are busy but I would really like to get this sorted out and fixed before my tires start to lose air.
You can always use generic TPMs with bluetooth and use their app to track the psi.

but thats the cheap way. Heres is from thier tpms instructions.
The Pr0-m TPMS system uses the same quality OEM sensors that are used in todays supercars. The 128 point psi calibration file is the same file used in the modern Ford GT. All you need to do is source four TPMs sensors from a wrecked or used 2017 - 2019 ford GT and connect them to the new and improved harness. Note: 2005-2006 Ford GT sensors are analog and will require the Pr0-m wheel well clock springs to be installed. Do not fall for the old Bluetooth TPMS sensors that only report your psi level every ten seconds. The Pr0-m sensors sample rate of 0.900 is the ultimate tire pressure monitoring system available for your vehicle today.
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You can always use generic TPMs with bluetooth and use their app to track the psi.

but thats the cheap way. Heres is from thier tpms instructions.
The Pr0-m TPMS system uses the same quality OEM sensors that are used in todays supercars. The 128 point psi calibration file is the same file used in the modern Ford GT. All you need to do is source four TPMs sensors from a wrecked or used 2017 - 2019 ford GT and connect them to the new and improved harness. Note: 2005-2006 Ford GT sensors are analog and will require the Pr0-m wheel well clock springs to be installed. Do not fall for the old Bluetooth TPMS sensors that only report your psi level every ten seconds. The Pr0-m sensors sample rate of 0.900 is the ultimate tire pressure monitoring system available for your vehicle today.
Lol I think I peed my pants...

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Just got off the phone with Pro M. The new calibration requires the sensors from 2022 Mustang only. When I asked why he said that the sensors will never again require replacement or recalibration and can be swapped wheel to wheel regardless of size, rotational resistance and tire color. Im very excited.
2022 mustang? What update was…. Umm, You mean to tell me that i flew out to Dubai to source these ford GT sensors for nothing now?
I had the same problem, I was able to wire in four map sensors, to the current tpms enabled in the calibrations file. Then you can datalog your tire pressures.
2022 mustang? What update was…. Umm, You mean to tell me that i flew out to Dubai to source these ford GT sensors for nothing now?
id call and complain to the customer service department....
I had the same problem, I was able to wire in four map sensors, to the current tpms enabled in the calibrations file. Then you can datalog your tire pressures.
Thats a great tip.
So finally got the new tpms harness in. Like everything else from pro m, top notch build. fit absolutely perfect. every click of the connector made me smile. installed in less than an hour. Now I can have a functional tpms light and throw away the old, antiquated tire pressure gauge. It was crap then and now they're made overseas. Pro M stuff is quality.
Don't forget!!!
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