One post tagged with "obd"

Car telemetry is a bit of a black magic. New cars are full of sensors that report readings on internal CAN buses. This data is accessible via a basic OBD adapter. However one needs to know the exact sensor PID value to query the sensor. The received data is usually in a raw form and needs to be converted to something usable by applying a specific formula. PID values and formulas are not shared by car manufacturers. Here is my attempt to make some sence of the GR Yaris OBD data.