Carry Out On-Board Diagnostic (OBD) Key ON Engine OFF (KOEO) and Key ON Engine Running (KOER) Self Test
WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
After a road test, with the vehicle warm and before disconnecting any connectors, carry out the Self Test using the scan tool. Refer to the INTRODUCTION - GASOLINE MODELS for diagnosis and testing of the powertrain control system.