ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Oxygen Sensor > < Main Relay (Computer/Fuel System)|Locations|Page 3661
Page 1
background image

Malfunction Indicator Lamp: Description and Operation

During vehicle operation. the malfunction indicator lamp (MIL) (SERVICE ENGINE SOON) illuminates when the powertrain control module (PCM)
has detected a fault.

Oxygen Sensor > < Main Relay (Computer/Fuel System)|Locations|Page 3661