2015 Ford Transit 150 Van Owner Manual Printing 3 - Page 126

Fuel and Refueling When the service engine soon indicator illuminates, the OBD-II system has detected a malfunction. Temporary malfunctions may cause the service engine soon indicator to illuminate. Examples of temporary malfunctions are: • The vehicle has run out of fuel. • Poor fuel quality or water in the fuel. • The engine may misfire or run rough. • The fuel filler door may not have been closed correctly. See Refueling (page 118). • Driving through deep water. The electrical system may be wet. You can correct these temporary malfunctions by filling the fuel tank with good quality fuel, correctly closing the fuel filler door or letting the electrical system dry out. After three driving cycles without these or any other temporary malfunctions present, the service engine soon indicator should not illuminate. A driving cycle consists of a cold engine startup followed by mixed city or highway driving. No additional vehicle service is required. If the service engine soon indicator remains on, have your vehicle serviced at the first available opportunity. Although some malfunctions detected by the OBD-II may not have symptoms that are apparent, continued driving with the service engine soon indicator on can result in increased emissions, lower fuel economy, reduced engine and transmission smoothness, and lead to more costly repairs. Readiness for Inspection/Maintenance (I/M) Testing Some state/provincial and local governments may have Inspection/Maintenance (I/M) programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent you from getting a vehicle registration. If the service engine soon indicator is on or the bulb does not work, you may need to have your vehicle serviced. See On-Board Diagnostics (OBD-II). Your vehicle may not pass the I/M test if the service engine soon indicator is on or not working properly (bulb is burned out), or if the OBD-II system has determined that some of the emission control systems have not been properly checked. In this case, your vehicle is not ready for I/M testing. If the vehicle engine or transmission has just been serviced or the battery has recently run out of charge or been replaced, the OBD-II system may indicate that your vehicle is not ready for I/M testing. To determine if the vehicle is ready for I/M testing, switch the ignition on for 15 seconds without cranking the engine. If the service engine soon indicator flashes on and off eight times, it means that your vehicle is not ready for I/M testing; if the service engine soon indicator illuminates and remains on, it means that your vehicle is ready for I/M testing. The OBD-II system monitors the emission control system during normal driving. A complete check may take several days. 123 Transit (TTH) Canada/United States of America, enUSA, Edition date: 03/2014, Third Printing