Ford 2013 Focus v.3 User Manual download pdf (Page 178)

These temporary malfunctions can be corrected by filling the fuel tank

with good quality fuel, properly closing the fuel fill inlet 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 stay off the next time the engine is started. A driving cycle

consists of a cold engine start-up 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 can 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, the vehicle may need to be serviced. See On-board

Diagnostics (OBD-II) in this chapter.

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, the vehicle is considered

not ready for I/M testing.

If the vehicle’s engine or transmission has just been serviced, or the

battery has recently run down or been replaced, the OBD-II system may

indicate that the vehicle is not ready for I/M testing. To determine if the

vehicle is ready for I/M testing, turn the ignition key to the on position

for 15 seconds without cranking the engine. If the service engine soon

indicator blinks eight times, it means that the vehicle is not ready for I/M

testing; if the service engine soon indicator stays on solid, it means that

the vehicle is ready for I/M testing.

Fuel and Refueling 177

2013 Focus (foc)

Owners Guide gf, 3rd Printing, November 2012

USA (fus)

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Ford 2013 Focus v.3 User Manual Page 178