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The voltage being reported is going to change depending on whether the car is awake or asleep. 13-ish when awake, 11.3-ish when asleep. The exact values depend on your OVMS unit's calibration, and could be off a little.I notice the PEM and voltage has been fluctuating.
11.1v and 87F on PEM. 12.7V and 68F PEM. shall I be concern?
@markwj might have an answer, but there are a few other threads on TPMS if you search for "tire monitor" or TPMS. I think there is an update to the OVMS, but not sure if it requires new hardware or if not yet available...Hello, it says tire pressure monitor system required. Is that something ovms can look into? Or, i should just go to service center?
When you asked about purchasing OVMS, I replied with the suggestion to buy the configuration including the TPMS add-on board. If you did that, then OVMS can communicate with the TPMS devices. I have no experience with that as I have a 1.5.Hello, it says tire pressure monitor system required. Is that something ovms can look into? Or, i should just go to service center?
Hello, it says tire pressure monitor system required. Is that something ovms can look into? Or, i should just go to service center?
Presumably you get this message 20 minutes into a drive? If so, and you have OVMS, please post the CAR tab screenshot, after a few minutes of driving. Rough analysis:
Regards, Mark.
- If you see one bright white pair of pressures, and one dark gray, you have a problem in the antenna serving the pair marked gray. Probably the usual config corruption. OVMS+TPMS option can re-program that for you. The Tesla Service centre could also do it, although they will probably tell you that your antenna is broken (it isn't) and sell you a new one.
- If you just have one tyre gray, and the others bright white, then most likely the battery in that sensor is dead. They last about 5 years (give or take a few). Once replaced, the IDs will need to be programmed (or the sensor cloned). Either OVMS+TPMS or Tesla Service is needed to do that.
- If it is all gray, or you get the error message immediately (rather than after 20 minutes of driving) then perhaps your TPMS ECU or cabling is damaged. Tesla Service required for that one.
i got the OVMS v3 - OVMS v3 with K-Line expansion board installed