On Board Diagnostics Data LinkConnector
WARNING
Do not connect wireless plug-indevices to the data link connector.Unauthorized third parties could gainaccess to vehicle data and impair theperformance of safety related systems.Only allow repair facilities that follow ourservice and repair instructions to connecttheir equipment to the data link connector.
Your vehicle has an OBD Data LinkConnector (DLC) that is used inconjunction with a diagnostic scan tool forvehicle diagnostics, repairs andreprogramming services. Installing anaftermarket device that uses the DLCduring normal driving for purposes such asremote insurance company monitoring,transmission of vehicle data to otherdevices or entities, or altering theperformance of the vehicle, may causeinterference with or even damage tovehicle systems. We do not recommendor endorse the use of aftermarket plug-indevices unless approved by Ford. Thevehicle Warranty will not cover damagecaused by an aftermarket plug-in device.
MOBILE COMMUNICATIONS
EQUIPMENT
WARNING
Driving while distracted can result inloss of vehicle control, crash andinjury. We strongly recommend thatyou use extreme caution when using anydevice that may take your focus off theroad. Your primary responsibility is the safeoperation of your vehicle. We recommendagainst the use of any hand-held devicewhile driving and encourage the use ofvoice-operated systems when possible.Make sure you are aware of all applicablelocal laws that may affect the use ofelectronic devices while driving.
Using mobile communications equipmentis becoming increasingly important in theconduct of business and personal affairs.However, you must not compromise yourown or others’ safety when using suchequipment. Mobile communications canenhance personal safety and security whenappropriately used, particularly inemergency situations. Safety must beparamount when using mobilecommunications equipment to avoidnegating these benefits. Mobilecommunication equipment includes, butis not limited to, cellular phones, pagers,portable email devices, text messagingdevices and portable two-way radios.
EXPORT UNIQUE OPTIONS
For your particular global region, yourvehicle may be equipped with features andoptions that are different from the featuresand options that are described in thisOwner’s Manual. A market uniquesupplement may be supplied thatcomplements this book. By referring to themarket unique supplement, if provided,you can properly identify those features,
132018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingIntroduction
Illumination of the service engine soonindicator, charging system warning light orthe temperature warning light, fluid leaks,strange odors, smoke or loss of enginepower could indicate that the emissioncontrol system is not working properly.
An improperly operating or damagedexhaust system may allow exhaust toenter the vehicle. Have a damaged orimproperly operating exhaust systeminspected and repaired immediately.
Do not make any unauthorized changes toyour vehicle or engine. By law, vehicleowners and anyone who manufactures,repairs, services, sells, leases, tradesvehicles, or supervises a fleet of vehiclesare not permitted to intentionally removean emission control device or prevent itfrom working. Information about yourvehicle’s emission system is on the VehicleEmission Control Information Decallocated on or near the engine. This decalalso lists engine displacement.
Please consult your warranty informationfor complete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as theon-board diagnostics system (OBD-II) thatmonitors the engine’s emission controlsystem. The system protects theenvironment by making sure that yourvehicle continues to meet governmentemission standards. The OBD-II systemalso assists a service technician in properlyservicing your vehicle.
When the service engine soonindicator illuminates, the OBD-IIsystem has detected amalfunction. Temporary malfunctions maycause the service engine soon indicator toilluminate. Examples are:
1.Your vehicle has run out of fuel—theengine may misfire or run poorly.
2.Poor fuel quality or water in thefuel—the engine may misfire or runpoorly.
3.The fuel fill inlet may not have closedproperly. See Refueling (page 132).
4.Driving through deep water—theelectrical system may be wet.
You can correct these temporarymalfunctions by filling the fuel tank withgood quality fuel, properly closing the fuelfill inlet or letting the electrical system dryout. After three driving cycles without theseor any other temporary malfunctionspresent, the service engine soon indicatorshould stay off the next time you start theengine. A driving cycle consists of a coldengine startup followed by mixed city andhighway driving. No additional vehicleservice is required.
If the service engine soon indicator remainson, have your vehicle serviced at the firstavailable opportunity. Although somemalfunctions detected by the OBD-II maynot have symptoms that are apparent,continued driving with the service enginesoon indicator on can result in increasedemissions, lower fuel economy, reducedengine and transmission smoothness andlead to more costly repairs.
Readiness for Inspection andMaintenance (I/M) Testing
Some state and provincial and localgovernments may haveInspection/Maintenance (I/M) programsto inspect the emission control equipmenton your vehicle. Failure to pass thisinspection could prevent you from gettinga vehicle registration.
If the service engine soonindicator is on or the bulb doesnot work, your vehicle may needservice. See On-Board Diagnostics.
1382018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingEngine Emission Control
