Ive been trying to find a way to disable the TPMS (Tyre pressure monitoring system) on my Jeep JK 2010
I changed bigger tyres , Bigger than the rims can handle but never kept the TPMS sensors.
I couldn't find away, So I took the plunge and bought a well know OBD2 programmer device that can do it and, and now ive become totally & beyond obsessed!!!!!
I have to be able to do it!, I just have to!
This is what i have done so far to intercept the data.
I'm using a CAN-BUS + Arduino Shield made by SeeedStudio. I modified the OBD2 Programmer Device and attached the CAN-H from the Arduino Shield to OBD pin 6 and CAN-L to OBD Pin 14
and using Pin 16 and 4 for power (Pin16 = Positive 12V and Pin 4 = Negative)
I programmed the Arduino to deliver all messages found line by line separating each bit with a "," to the Arduino's Serial Monitor.
So when connecting to it from my laptop using Putty it dumps all text to screen so that i'm able to save it.
When connecting the setup to the OBD2 port the programmer starts to send messages to disable the TPMS, and returns about 50 messages, of which most of them are responses from the Jeep and the others are messages being sent to the Jeep.
When connecting the programmer to the Jeep after it programmed it, it honks the hooter twice.
I ran the disable the TPMS twice and saved the log using putty via serial.
When comparing the 2 there are a few differences,
I also ran it a 3rd time but i let the programmer set the TPMS to 22 PSI before the "Flat Tyre" indicator comes on.
Comparing the data to one another there are quite a few commonalities.
all of the below data is in number format and should be converted to HEX, But if you convert each bit in between the ","s to ASCII the first few responses are the
VIN number of my Jeep.
I analyzed the data and used some common logic to figure out which comes from the Jeep and which comes from the programmer,
I then used all of the messages which i think comes from the frogrammer and fed it back into the Jeep!
Something worked because instead of the Jeep honking twice, the hooter when crazy by giving one long hoot and i couldn't stop it, i had to shut ot off by taking the key out and only after a few seconds it Stopped.
For a moment i went a bit pale


Dont know if the below helps anyone, bu here is the data.
Fisrt Run
Code: Select all
Enter setting mode success
set rate success!!
Enter Normal Mode Success!!
CAN BUS Shield init ok!
<1536,2,26,136,0,0,0,0,0,>
<1280,16,19,90,136,49,74,52,66,>
<1536,48,0,0,0,0,0,0,0,>
<1280,33,69,54,68,49,52,65,76,>
<1280,34,50,48,54,48,52,52,0,>
<1568,2,33,10,0,0,0,0,0,>
<1284,16,18,97,10,240,2,17,2,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,10,4,0,3,0,0,34,>
<1284,34,0,0,0,2,3,15,0,>
<1568,2,33,176,0,0,0,0,0,>
<1284,16,20,97,176,2,0,0,0,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,0,0,0,0,71,194,236,>
<1284,34,0,225,0,255,255,15,0,>
<1568,2,33,178,0,0,0,0,0,>
<1284,16,11,97,178,0,0,0,0,>
<1284,33,0,0,0,0,0,194,236,>
<1568,2,33,18,0,0,0,0,0,>
<2015,2,62,2,0,70,84,87,33,>
<1568,2,16,146,0,0,0,0,0,>
<1284,2,80,146,250,1,192,4,216,>
<1568,2,33,11,0,0,0,0,0,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,1,2,3,0,255,156,128,>
<1284,34,30,147,97,11,14,0,133,>
<2015,2,62,2,0,70,84,87,33,>
<1568,48,0,0,0,0,0,0,0,>
<1568,2,16,146,0,0,0,0,0,>
<1284,2,80,146,97,11,14,0,133,>
<1696,2,16,146,0,0,0,0,0,>
<1300,2,80,146,7,0,0,0,0,>
<1568,4,48,173,7,1,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,1,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,0,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,0,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,1,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,1,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,0,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,0,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1924,2,17,130,0,0,0,0,0,>
<1536,2,17,130,0,0,0,0,0,>
<1280,3,127,17,18,48,52,52,0,>
<1925,3,127,17,128,0,0,0,0,>
Code: Select all
Enter setting mode success
set rate success!!
Enter Normal Mode Success!!
CAN BUS Shield init ok!
<1536,2,26,136,0,0,0,0,0,>
<1280,16,19,90,136,49,74,52,66,>
<1536,48,0,0,0,0,0,0,0,>
<1280,33,69,54,68,49,52,65,76,>
<1280,34,50,48,54,48,52,52,0,>
<1568,2,33,10,0,0,0,0,0,>
<1284,16,18,97,10,240,2,17,2,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,10,4,0,3,0,0,34,>
<1284,34,0,0,0,2,3,0,0,>
<1568,2,33,176,0,0,0,0,0,>
<1284,16,20,97,176,2,0,0,0,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,0,0,0,0,68,194,234,>
<1284,34,0,225,0,255,255,15,0,>
<1568,2,33,178,0,0,0,0,0,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,0,0,0,0,0,194,234,>
<1568,2,33,18,0,0,0,0,0,>
<2015,2,62,2,0,70,84,87,33,>
<1568,2,16,146,0,0,0,0,0,>
<1284,2,80,146,250,1,192,4,215,>
<1568,2,33,11,0,0,0,0,0,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,1,2,3,0,255,156,128,>
<1284,34,30,147,97,11,14,0,133,>
<2015,2,62,2,0,70,84,87,33,>
<1284,16,11,97,178,0,0,0,0,>
<1568,2,16,146,0,0,0,0,0,>
<1284,2,80,146,97,11,14,0,133,>
<1696,2,16,146,0,0,0,0,0,>
<1300,2,80,146,7,0,0,0,0,>
<1568,4,48,173,7,1,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,1,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,0,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,0,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,1,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,1,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,0,0,0,0,>
<1284,3,112,173,7,11,14,0,133,>
<1696,4,48,64,7,0,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1924,2,17,130,0,0,0,0,0,>
<1536,2,17,130,0,0,0,0,0,>
<1280,3,127,17,18,48,52,52,0,>
<1925,3,127,17,128,0,0,0,0,>
Code: Select all
Enter setting mode success
set rate success!!
Enter Normal Mode Success!!
CAN BUS Shield init ok!
<1536,2,26,136,0,0,0,0,0,>
<1280,16,19,90,136,49,74,52,66,>
<1536,48,0,0,0,0,0,0,0,>
<1280,33,69,54,68,49,52,65,76,>
<1280,34,50,48,54,48,52,52,0,>
<1568,2,33,10,0,0,0,0,0,>
<1284,16,18,97,10,240,2,17,2,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,10,4,0,3,0,0,34,>
<1284,34,0,0,0,2,3,15,0,>
<1568,2,33,176,0,0,0,0,0,>
<1284,16,20,97,176,2,0,0,0,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,0,0,0,0,65,194,234,>
<1284,34,0,225,0,255,255,15,0,>
<1568,2,33,178,0,0,0,0,0,>
<1284,16,11,97,178,0,0,0,0,>
<1284,33,0,0,0,0,0,194,234,>
<1568,2,33,18,0,0,0,0,0,>
<1284,7,97,18,250,1,192,4,215,>
<2015,2,62,2,0,70,84,87,33,>
<1568,2,16,146,0,0,0,0,0,>
<1284,2,80,146,250,1,192,4,215,>
<1568,48,0,0,0,0,0,0,0,>
<1284,33,1,2,3,0,255,156,128,>
<1284,34,30,147,97,11,14,0,133,>
<1568,34,30,147,0,0,0,0,0,>
<1284,2,123,11,255,255,255,255,255,>
<1568,48,0,0,0,0,0,0,0,>
<28,2,62,2,0,0,65,69,86,>
<2015,2,62,2,0,70,84,87,33,>
<1536,2,16,146,0,0,0,0,0,>
<1536,2,33,80,0,0,0,0,0,>
<1280,7,97,80,28,28,0,0,5,>
<1536,7,59,80,28,28,22,22,5,>
<1280,2,80,146,54,48,52,52,0,>
<1280,2,123,80,28,28,0,0,5,>
<28,2,62,2,0,0,65,69,86,>
<2015,2,62,2,0,70,84,87,33,>
<1568,2,16,146,0,0,0,0,0,>
<1284,2,80,146,255,255,255,255,255,>
<1696,2,16,146,0,0,0,0,0,>
<1300,2,80,146,0,0,0,0,0,>
<1568,4,48,173,7,1,0,0,0,>
<1284,3,112,173,7,255,255,255,255,>
<1300,3,112,64,7,0,0,0,0,>
<1696,4,48,64,7,1,0,0,0,>
<1568,4,48,173,7,0,0,0,0,>
<1284,3,112,173,7,255,255,255,255,>
<1696,4,48,64,7,0,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,1,0,0,0,>
<1284,3,112,173,7,255,255,255,255,>
<1696,4,48,64,7,1,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1568,4,48,173,7,0,0,0,0,>
<1284,3,112,173,7,255,255,255,255,>
<1696,4,48,64,7,0,0,0,0,>
<1300,3,112,64,7,0,0,0,0,>
<1924,2,17,130,0,0,0,0,0,>
<1536,2,17,130,0,0,0,0,0,>
<1280,3,127,17,18,28,0,0,5,>
<1925,3,127,17,128,0,0,0,0,>