car diagnostic software . Turn off the engine and set the parking brake.

Ways to Retrieve a Code on a '99 Saturn Sl2 1Shift the SL2's transmission into park or first gear (manual). Turn off the engine and set the parking brake.

Turn the ignition to the "RUN" position, but don't start the engine auto diagnostics software.2Plug the scan tool's data cable into the Saturn's diagnostic port located underneath the dashboard on the driver's side, just above the pedals.3Power on the scan tool and select "PCM" car diagnostic software; from the main menu. Select "codes," then select "read all current and stored codes."

Wait for the scan tool to display the codes.4Write down all of the codes displayed on the scan tool's screen. Power down the scan tool and disconnect it from the vehicle.