What Can OBD Detect?

What Can OBD Detect? Fuel Systems. Engine Misfires. Emissions Control Systems. Vehicle/Speed Idling Controls. Computer Systems. Transmission Systems. Others related to vehicle body & chassis etc such as Seat-belt, Airbags etc. What problems can a car scanner detect? An ODB2 Scanner can detect many inconsistencies that are present in a vehicle. It read trouble codes