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How to Reset Codes in a Chevrolet Duramax

Checking the codes on your Chevy Duramax will reveal pertinent information about mechanical and electrical functions of the truck. Resetting the codes on your Duramax will take no longer than 10 minutes. The tool you need for this job is an OBD-II code reader, which can be purchased from any auto parts retailer. It is a handheld computerized device that reads and resets computer codes on your vehicle. Always complete any servicing and repairs before you attempt to reset the codes to prevent damage to your vehicle.

Instructions

1

Plug your OBD-II code reader into the port on the bottom of the drivers side dashboard. The port and the code readers plug are both triangular shaped.

2

Put the key into the ignition and turn it to the "ACC" position. This should power on the code reader. If not, turn on the code reader.

3

Select the "Read" command on the code reader, then select "Delete." Wait for the code reader to indicate that the command has been completed. This is usually indicated by returning to the main menu.

4

Remove the code reader from the port and turn the engine on. Verify that all service and warning lights have shut off.