Asked in Chevy Tahoe
Chevy Tahoe

How do you reset service engine light myself on 1999 Chevy Tahoe already found code put new plugs and wires Fuel filter went next Put gas in tank. Now light is back on?



User Avatar
Wiki User

You can disconnect the truck's battery for approx. 1/2 hour. This should re-set the engine computer and clear the check engine light. If not, there still is a problem, and you will need to get the code from an OBD II reader. OBD II is a second generation On Board Diagnostic interface with the vehicle's computer.