How to Reset the Service Engine Light on a '97 Saturn SL1 1Turn off the engine and apply the emergency brake. Place the transmission in park (auto) or first gear (manual). Turn the ignition to the " auto diagnostics software;ON" Obd2 scanner; position but do not start the engine.2Find the vehicle's diagnostic data port.
It is located underneath the dashboard, just above the pedals.3Power on the scan tool and connect it to the diagnostic data port. Navigate to the "codes" menu on the scan tool. Select "clear all codes."4Unplug the scan tool from the data port and power it down. Start the engine and make sure that the service engine light is no longer illuminated.
How to Reset the Service Engine Indicator on a 2007 Audi Q7 1Turn off the ignition.2Place the reset tool into the diagnostic program, discovered close to the Audi's hood release latch.3Press the reset tool's "Select" button.4Turn on the ignition, but do not get started the engine.5Press the "Enter" button on the tool and wait 10 seconds for the tool's lights to come on.6Turn off the ignition. Eliminate the reset tool from the Audi Q7.
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