User's Guide

TR Tesla Roadster
The Tesla Roadster support in OVMS is perhaps the most mature in the project. All versions
(1.x, 2.x, and 3.x) are supported, for both North American and other variants.
Hardware Requirements
The following hardware is required:
● OVMS v3 module (and optional modem, if required)
● OVMS Data Cable for Early Teslas
● OVMS GSM Antenna (or other similar antenna)
● Adhesive velcro strips (or other similar)
Module Installation in the vehicle
The OVMS module is connected to your
Roadster via the CAN bus diagnostic port
connector, which is located in the passenger
footwell. It is made of plastic that is wrapped in
grey foam, as shown in the photo. Typically,
the connector is wedged into the front wall near
the center console so it won’t rattle. Pull the
connector out and note the orientation of the
pins, especially the void above the +12V and
Ground pins.
The OVMS Data Cable for Tesla Roadster can
then be plugged in, connecting the car to the
OVMS module. Make sure to tighten the screws holding the module-side DB9 connector.
At this point, check the car. Tap on the VDS in the centre console and make sure it turns on.
Insert the key, turn on the car, and make sure everything works as expected. If you see any
problems at all with the car, disconnect the OVMS module and contact Open Vehicles support
for assistance.
Warning!
If, when you plug the OVMS into the car, you see any interference to, or
strange behaviour of, car systems – immediately unplug the module and
contact Open Vehicles for assistance. Never leave a module connected
in such circumstances.
The OVMS Module is best secured to the front wall of the passenger footwell using adhesive
velcro tape. With the module connected to the car diagnostics port connector, experiment with
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