Checking the codes on a 2006 Chevrolet Duramax diesel can give you pertinent information about the engine and emissions of the truck. The 2006 6.6-liter Duramax was built with a higher torque and horsepower, along with reduced emissions with the help of an iron cylinder block and lower compression ratio. In 2006 the Duramax was given the engine brake option with controls attached to the turbo charger. Checking the trouble codes on your Duramax should take no longer than 30 minutes. The tool needed for this job is available at most auto parts stores or online.
Plug the OBD-II scanner or equivalent computer diagnostic scanner into the port at the bottom of the dashboard. The scanner port is a triangular-shaped port that matches the male end of the scanner plug.
Turn the engine key to the "Accessories" position. Turn the power on for the code reader.
Press the "Read" button on the scanner. Read all of the codes and write them down. Make sure you write down pertinent information that the code reader gives you. Some code readers give a definition of the code, and others give you a definition and location of the source problem.
Turn the ignition key off. Remove the scanner from the truck.
