Professional diagnositic tools

The best way to Reset the Examine Engine Light on a GMC Envoy 1Read the instruction manual for the OBD II DTC reader and eraser. There are plenty of varieties that feature distinct alternatives and have diverse procedures for reading and erasing codes. While extremely simple to operate, the instruction manual will direct you tips on how to correctly use the reader.

2Open the GMC Envoy's driver-side door and appear under the dashboard to find the OBD II connector.3Place the plug in the reader in to the connector. Because of its shape Auto diagnostic tool, you are able to only plug it in one particular way.4Place the key in the ignition and turn the essential two clicks forward to the accessory power position. This may illuminate the lights on the instrument panel with out starting the engine of your Envoy.

5Turn the energy button on the reader (if equipped; most will turn on when the ignition crucial is turned to the "on" position).6Follow the steps from the instruction manual to read and erase the DTC(s). It's recommended to write the codes on a piece of paper Professional diagnositic tools.7Wait for the reader to let you know from the onscreen menu that the diagnostic difficulty code has been erased, then unplug it from the connector.8Start the engine of your Envoy and examine the instrument panel to ensure the check-engine light is out.