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From the folks who sell the OVMS module:Hi everybody,
someone knows the name of Tesla Roadster diagnostic port?
And where to buy the male connector?
Thanks
Thanks supersnoop,
I've already bought it from Fasttech but I need just the connector.
For this reason maybe if I'd know its name (I think it's a standard one) I'll be able to find it on the market.
Mark, What kind of traffic goes over each of the CAN buses? Why is there a need for four separate CAN buses? Can you see all the traffic that is going between the ESS and the PEM from the CAN buses that are available in the diagnostic connector? Thanks.
Do you know what kind of micro-controller is in the VMS?
Someone mentioned it recently, somewhere on the interwebs, but I can't remember who/what/where. I seem to remember them saying it was a 4 CAN bus ST microcontroller, but not certain.
Sorry, for the Model S also?It is common practice in modern automobiles to separate the different parts of the car out from each other by putting them on different CAN buses.
For example, on the roadster, the buses are split:
* Power Train (PEM, body control, parking lock, gear selector, ABS)
* Energy Storage (HVAC, Battery x13)
* Driver Feedback aka Instrumentation (Instrument Cluster, Touchscreen, TPMS)
The idea is that a faulty component on the Driver Feedback bus shouldn't affect the power train (for example). Also, the bandwidth of each bus is kept to just what is required by the modules on that bus.
All three buses go into the Vehicle Management System (VMS). That does have some capabilities for reflecting information on one bus onto another, but in general each bus has its own unique messages and information.
Yes, that connector provides access to all the above three buses.
View attachment 102973
Sorry, for the Model S also?
What do you want to adapt it to? The Roadster's OBDII port isn't "standard", other than the physical connector and the +12v power it provides.Does anybody know where to buy an OBD-II adapter for the Roadster?
Does anybody know where to buy an OBD-II adapter for the Roadster?
Why bother? There is nothing much of interest on that connector.
The K-line is connected to TPMS. Any standard OBDII bluetooth/wifi/usb ELM327/STN1110 should be able to read that.
The CAN bus is connected to VMS, supposedly at 1MHz. OBDII dongles won't handle that speed; you'll need a dedicated USB-CAN adaptor. I haven't seen any documents on what is on that bus (if anything).
You won't find any OBDII standard PIDs there.
Why bother? There is nothing much of interest on that connector.
The K-line is connected to TPMS. Any standard OBDII bluetooth/wifi/usb ELM327/STN1110 should be able to read that.
The CAN bus is connected to VMS, supposedly at 1MHz. OBDII dongles won't handle that speed; you'll need a dedicated USB-CAN adaptor. I haven't seen any documents on what is on that bus (if anything).
You won't find any OBDII standard PIDs there.