Protocols
OBD-II
Vehicle diagnostic standard present in all modern cars since 1996.
OBD-II (On-Board Diagnostics II) is a vehicle diagnostic standard mandatory in all cars sold in the United States since 1996 and globally adopted. It defines a standard connector and communication protocols for accessing vehicle data.
OBD-II Port
The OBD-II connector is a 16-pin port usually located under the driver's dashboard. Through this port, Rinho devices can read ECU data without modifications or cable cutting.
Data accessible via OBD-II
- Engine RPM
- Vehicle speed
- Fuel level
- Coolant temperature
- Throttle position
- Error codes (DTC)
- Engine status (on/off)
- VIN (vehicle identification number)
OBD-II in Rinho devices
Spider IoT and Smart IoT devices connect to the OBD-II port natively to read this data. The connection is plug-and-play: no vehicle-specific programming is required in most cases.
Frequently asked questions
Answers to the most common questions about this topic.
It is usually found under the dashboard on the driver side, near the steering column. In some vehicles it may be behind a cover or panel.
Heavy trucks generally use the J1939 protocol instead of OBD-II. Rinho devices support both protocols natively.