DIY - Bypassing Tire Pressure Warning System (TPWS / TPMS)

[Treyz]

So now we are back to three wires? I did the heat shrink and all with the 150ohms.

[CTScott]

Originally Posted by Treyz

So now we are back to three wires? I did the heat shrink and all with the 150ohms.

It's not cutting the VSS and ESS wires (like the original started with). In doing some reverse engineering of the TPWS, I realized that it has a regulated 5VDC output that powers the radio receiver module. Tapping the white wire in pin 5 gives us this regulated voltage, so the resistor voltage divider isn't necessary. Both methods work, but this one is a bit more simple.