Maintenance and Specifications
detectedbytheOBD-IImaynothavesymptomsthatareapparent,
continueddrivingwiththeserviceenginesoon
indicatoroncan
resultinincreasedemissions,lowerfueleconomy,reducedengineand
transmissionsmoothness,andleadtomorecostlyrepairs.
Readiness for Inspection/Maintenance (I/M) testing
Somestate/provincialandlocalgovernmentsmayhave
Inspection/Maintenance(I/M)programstoinspecttheemissioncontrol
equipmentonyourvehicle.Failuretopassthisinspectioncouldprevent
youfromgettingavehicleregistration.YourvehiclemaynotpasstheI/M
testiftheserviceenginesoon
indicatorisonornotworking
properly(bulbisburnedout),oriftheOBD-IIsystemhasdetermined
thatsomeoftheemissioncontrolsystemshavenotbeenproperly
checked.Inthiscase,thevehicleisconsiderednotreadyforI/Mtesting.
Iftheserviceenginesoon
indicatorisonorthebulbdoesnot
work,thevehiclemayneedtobeserviced.RefertoOn-board
diagnostics(OBD-II)inthischapter.
Ifthevehicle’sengineortransmissionhasjustbeenserviced,orthe
batteryhasrecentlyrundownorbeenreplaced,theOBD-IIsystemmay
indicatethatthevehicleisnotreadyforI/Mtesting.Todetermineifthe
vehicleisreadyforI/Mtesting,turntheignitionkeytotheonposition
for15secondswithoutcrankingtheengine.Iftheserviceengine
soon
indicatorblinkseighttimes,itmeansthatthevehicleisnot
readyforI/Mtesting;iftheserviceenginesoon indicatorstayson
solid,itmeansthatthevehicleisreadyforI/Mtesting.
TheOBD-IIsystemisdesignedtochecktheemissioncontrolsystem
duringnormaldriving.Acompletecheckmaytakeseveraldays.Ifthe
vehicleisnotreadyforI/Mtesting,thefollowingdrivingcycleconsisting
ofmixedcityandhighwaydrivingmaybeperformed:
15
20
minutesofsteadydrivingonanexpressway/highwayfollowedby
minutesofstop-and-godrivingwithatleastfour30-secondidle
periods.
Allowthevehicletositforatleasteighthourswithoutstartingthe
engine.Then,starttheengineandcompletetheabovedrivingcycle.The
enginemustwarmuptoitsnormaloperatingtemperature.Oncestarted,
donotturnofftheengineuntiltheabovedrivingcycleiscomplete.If
thevehicleisstillnotreadyforI/Mtesting,theabovedrivingcyclewill
havetoberepeated.
252
| Categories | Ford Focus Manuals, Ford Manuals |
|---|---|
| Model Year | 2010 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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