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Success! I put the old ECU on the bench to see what messages it is sending. It had only 4 pins numbered 1 through 4. I took a guess that pin 1 was still ground with pin 2 being +12V. I then measured the voltage between ground and the remaining two pins to determine that one was CAN+ and one...

Another update. I was able to get under the car and remove the Baolong TPMS ECU. Once it was unplugged, the regular once per second all-zero messages on 0x31f ceased. And the 'reset failed' message that says "Tire pressure monitor sensors were not reset. Would you like to try again?" stopped...

My old S had a blown shock when I bought it. I purchased replacement suspension modules for all four corners from autobahnparts.com The parts were used, of course. I was told the donor vehicle had about 25,000 miles on it. Price was $250 each. All work perfectly. They have two rear units...

Well, I got on the chassis CAN bus. I can see and send messages. The bitrate is 500K, not 1M. Trying to set a 1M bitrate took the whole bus down and everything on it become very unhappy for a while. Address 0x344 is definitely related to the parking brake ECU, not the TPMS. Sending messages...

I can't answer your question, but I might be interested in those rims. I'm close enough to drive down and pick them up if we can reach a deal. Please PM me. As a new member I am unable to send PMs yet.

I have 2014 Model S with the Baolong TPMS system. A long time ago, it started giving an error that says something like "sensor fault may clear next drive". I immediately went out and spent $240 replacing all 4 TPMS sensors but the error didn't go away. Tesla service said that the issue is with...