Diagnoses all 1996 & newer OBDII compliant vehicles. Clears codes, turns off check engine lights (MIL) & resets monitors. Built in speaker. 50mm colour screen This OBDII Code Reader from Mechpro Blue is excellent for your testing and diagnostic needs, and doesn't carry the showroom price tag you would expect from some of the best OBD scanner tools on the market. With this code reader handy you can perform a huge variety of functions, like battery tests, engine speed tests, error code lookups for diagnostic trouble codes, and figure out exactly why that pesky check engine light is blinking. As long as your vehicle year is 1996-on and OBD compliant, you'll have the power of a mechanic's onboard diagnostics at your fingertips for a fraction of the price. All of the most popular and common error codes are included in the scan tools database, like faulty oxygen sensor, engine misfire, EVAP system error, EGR clogged and catalytic converter contamination. The Mechpro Blue OBDII Code Reader features its own screen, a 50mm colour screen and built-in speaker for easy use and functionality, with a unique single-click key to verify all checks. - Diagnoses all 1996 & newer OBDII compliant vehicles - Clears codes, turns off check engine lights (MIL) & resets monitors - Built in speaker - 50mm colour screen