Car tools
Everything here is free and works in the browser. Nothing changes the car.
- Engine software checkReads the car’s software IDs and fingerprints over the OBD port and compares them with other cars. Plus warning lights, fault codes, readiness and the odometer the engine counted.OBD adapter
- VIN checkMake, model, engine and factory from the VIN, plus every recall, owner complaint and crash rating NHTSA has for that model year.Just the VIN
- Fault code explainerWhat a code like P0420 means: the system, the area, and the official title for common generic codes.The code
- Adapter testChecks that your OBD adapter talks to this site before you go and see a car.OBD adapter
- Software ID lookupWhat other cars report for a calibration ID (CAL ID): how many, and which fingerprints.A CAL ID
- Type in a CAL ID and CVNAlready read the car with another scan tool or app? Compare the numbers here.The numbers