I've updated the development document with some vehicle module development checklists. You can use these checklists to know what vehicle parameters the OVMS system supports, and how you can map a specific vehicle to these. The Tesla Roadster supports 100% of these (obviously). It would be good to use these ongoing for other vehicles, both as a target list to get to 100% support, and as a worksheet for both CAN bus information and progress. I hope you find them useful. Regards, Mark. Parameter Purpose Vehicle Support Notes Vehicle Identification car_type Vehicle type identified car_vin Vehicle VIN Parameter Purpose Vehicle Support Notes GPS Status Vehicle GPS Does the vehicle have a built-in GPS? If so, complete the following. car_gpslock Set to record GPS lock car_stale_gps Denotes GPS data staleness car_latitude Latitude of the vehicle car_longitude Longitude of the vehicle car_direction Direction of the vehicle car_altitude Altitude of the vehicle Parameter Purpose Vehicle Support Notes Tire Pressure Monitoring System TPMS Does the vehicle have a TPMS? If so, complete the following. car_stale_tpms Denotes TPMS data staleness car_tpms_t The temperatures of each wheel car_tpms_p The pressures of each wheel Parameter Purpose Vehicle Support Notes Driving Status car_doors1 [bit7] Set if the car ignition is ON car_speed The speed of the vehicle car_trip The vehicle trip counter car_odometer The vehicle odometer Parameter Purpose Vehicle Support Notes Vehicle Environment car_stale_ambient Ambient temperature staleness car_ambient_temp Ambient temperature car_stale_temps Other Temperature staleness car_tpem Temperature of the PEM car_tmotor Temperature of the MOTOR car_tbattery Temperature of the BATTERY car_doors1 [bit 0] Set if front left door OPEN car_doors1 [bit 1] Set if front right door OPEN car_doors2 [bit 6] Set if bonnet is OPEN car_doors2 [bit 7] Set if trunk is OPEN car_doors1 [bit 2] Set if charge port is OPEN car_doors1 [bit 6] Set if handbrake is ON car_doors2 [bit 5] Set if headlights ON car_doors3 [bit 1] Set if vehicle is AWAKE (or if not supported just follow ignition) car_doors2 [bit 4] Set if valet mode is ENABLED car_doors2 [bit 3] Set if vehicle is LOCKED car_lockstate 4=locked, 5=unlocked (deprecated) car_doors4 [bit 2] Set if alarm SOUNDING car_time Time (in seconds) car_parktime Time (seconds) vehicle parked Parameter Purpose Vehicle Support Notes Battery Status car_SOC State of charge percentage car_idealrange Ideal range car_estrange Estimated range Parameter Purpose Vehicle Support Notes Charging Status car_doors1 [bit 3] Set if pilot signal ON car_doors1 [bit 4] Set if vehicle CHARGING car_linevoltage Line voltage while charging car_chargecurrent Line current while charging car_chargemode Vehicle Mode car_chargestate Charging state car_chargesubstate Charging sub-state car_chargelimit Charge current limit car_chargeduration Charge duration (minutes) car_chargekwh Charge kWh put into battery car_stale_timer Charge timer staleness car_timermode Charge timer mode car_timerstart Charge timer schedule