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Engine management light diagnostics
Is it possible to just clear the engine warning light?
Clearing stored information may hide useful evidence and the warning can return. The cause must be assessed first.
Engine management light diagnostics — planning the work
For engine management light diagnostics, a warning or failed electrical function can have several causes. Checks should connect the reported symptom to the supply, wiring, control or component involved before a replacement is chosen.
Engine management light diagnosticsMore questions
More questions
about this service.
What if the engine runs roughly as well as showing a warning?
Do not assume continued driving is appropriate; seek advice before proceeding. Describe both symptoms and follow the vehicle handbook.
What should be covered at handover?
Check restored function, fault status and any further diagnostic work.
Engine management light diagnostics by area
Select a place to view this service for that location. Please provide the postcode when you enquire.
England · East Midlands116 place pages
AlfretonArnoldAshbourneAshby-de-la-ZouchBaldertonBarwellBeestonBelperBinghamBirstallBlaby and WhetstoneBlythBolsoverBostonBourneBrackleyBradwellBreaston and DraycottBrimingtonBroughton AstleyBurton LatimerBuxtonCalvertonCarltonCastle DoningtonChesterfieldClay CrossCliftonClowneCoalvilleCorbyCotgraveCountesthorpeDaventryDerbyDesboroughDronfieldEarl ShiltonEast LeakeEastwoodEckingtonEnderby and NarboroughForest TownGainsboroughGlossopGranthamHadfieldHarworth and BircotesHeanorHigham FerrersHiltonHinckleyHolbeachHorncastleHucknallIlkestonIrthlingboroughKetteringKibworth Beauchamp and Kibworth HarcourtKillamarshKirkby-in-AshfieldLeicesterLeicester Forest East and Kirby MuxloeLincolnLong EatonLoughboroughLouthLutterworthMablethorpeMansfieldMansfield WoodhouseMarket HarboroughMatlockMelton MowbrayMountsorrelNew MillsNew Ollerton and OllertonNewark-on-TrentNorth HykehamNorth Wingfield and HolmewoodNorthamptonNottinghamNuthall and WatnallOadbyOakhamRainworthRaundsRetfordRipleyRothwellRuddingtonRushdenSandiacreShepshedShirebrookSilebySkegnessSleafordSomercotes and SwanwickSouth Normanton and PinxtonSouthwellSpaldingStamfordStaplefordStaveleySutton in AshfieldSwadlincoteSystonThorntonThurmastonTowcesterWellingboroughWest BridgfordWhitwickWigstonWorksop
England · East of England137 place pages
Abbots Langley and Kings LangleyAmpthillAttleboroughAveleyBaldockBasildonBecclesBedfordBerechurchBerkhamstedBiggleswadeBillericayBishop's StortfordBorehamwoodBradwellBraintreeBrandonBrentwoodBrightlingseaBuckhurst HillBuntingfordBurnham-on-CrouchBuryBury St EdmundsBusheyCaister-on-SeaCambourneCambridgeCanvey IslandChadwell St MaryChafford Hundred and West ThurrockChatterisChelmsfordCheshuntChigwellChorleywoodClacton-on-SeaCliftonColchesterCromerDerehamDissDownham MarketDunstableElyEppingFakenhamFelixstoweFlitwickGodmanchesterGorleston-on-SeaGraysGreat DunmowGreat NotleyGreat YarmouthHadleighHalsteadHarlowHarpendenHarwichHatfieldHaverhillHemel HempsteadHertfordHiltonHiston and ImpingtonHitchinHockley and HawkwellHoddesdonHoughton RegisHuntingdonIpswichKempstonKesgraveKing's LynnLeighton BuzzardLetchworthLittleportLondon ColneyLoughtonLowestoftLutonMaldonMarchMildenhallNewmarketNewportNorth WalshamNorwichPeterboroughPotters BarRadlettRayleighRickmansworthRochfordRoystonRunwellSaffron WaldenSandySawbridgeworthSawstonSheffordSohamSouth OckendonSouth Woodham FerrersSouthend-on-SeaSt AlbansSt IvesSt NeotsStanford-le-HopeStansted MountfitchetStevenageStotfoldStowmarketSudburySwaffhamTaverham and DraytonThetfordThundersley and South BenfleetTilburyTiptreeTringWaltham AbbeyWaltham CrossWareWatfordWattonWelwyn Garden CityWhittleseyWickfordWisbechWithamWivenhoeWoodbridgeWoottonWymondhamYaxley
England · London1 place pages
England · North East63 place pages
AlnwickAnnfield PlainAshingtonBedlingtonBerwick-upon-TweedBillinghamBirtleyBishop AucklandBlaydonBlythBrandonChester-le-StreetConsettCramlingtonCrawcrook and GreensideCrookDarlingtonDinningtonDudleyDurhamEgglescliffeEstonFerryhillGatesheadGuisboroughHartlepoolHebburnHetton-le-HoleHexhamHoughton-le-SpringIngleby BarwickJarrowKillingworthLongbentonMarske-by-the-SeaMiddlesbroughMorpethNewcastle upon TyneNewton AycliffePelton and OustonPeterleePontelandPrudhoeRedcarRytonSeahamSeaton DelavalShildonShiney Row and PenshawSouth ShieldsSpennymoorStakefordStanleyStockton-on-TeesSunderlandThornaby-on-TeesTynemouthWallsendWashingtonWhickhamWhitley BayWideopenYarm
England · North West163 place pages
AccringtonAdlingtonAlsagerAltrinchamAshton-in-MakerfieldAshton-under-LyneAthertonAudenshawBacupBamber BridgeBarnoldswickBarrow-in-FurnessBebingtonBirkenheadBlackburnBlackpoolBoltonBootleBramhallBredbury and WoodleyBrierfieldBurnleyBurscoughBuryCarlisleChaddertonCheadleCheadle HulmeChesterChorleyClayton-le-MoorsCleveleysCliftonClitheroeCockermouthColneCongletonCoppullCreweCrosbyDalton-in-FurnessDarwenDavenhamDentonDroylsdenDukinfieldEcclesEllesmere PortElworthEuxtonFailsworthFarnworthFleetwoodFormbyFrodshamFulwoodGatleyGolborneGreasbyGreat HarwoodHaleHaslingdenHaydockHazel GroveHeswallHeyshamHeywoodHindleyHorwichHuyton with RobyHydeInce-in-MakerfieldIrlamKearsleyKendalKirkbyKirkhamKnutsfordLancasterLeesLeighLeylandLitherlandLittle HultonLittle LeverLittleboroughLiverpoolLongridgeLongtonLymmLytham St Anne'sMacclesfieldMaghullManchesterMarpleMaryportMiddletonMiddlewichMilnrowMorecambeMossleyNantwichNelsonNestonNewton-le-WillowsNorthwichOld TraffordOldhamOrmskirkOrrellOswaldtwistlePadihamPartingtonPenrithPenworthamPlatt Bridge and AbramPoulton-le-FyldePoyntonPrescotPrestonPrestwichRadcliffeRamsbottomRawtenstallReddishRochdaleRomileyRoytonRuncornSaleSalfordSandbachSeatonShawSkelmersdaleSouthportSt HelensStalybridgeStandishStaveleyStockportStretfordSwintonTarleton and Hesketh BankThorntonTyldesleyUlverstonUppermillUrmstonWalkdenWallaseyWarringtonWest KirbyWesthoughtonWhitefieldWhitehavenWidnesWiganWilmslowWinsfordWorkingtonWorsleyWythenshawe
England · South East220 place pages
Abingdon-on-ThamesAddlestoneAldershotAltonAmershamAndoverAscotAsh and Ash ValeAshfordAshford CommonAshingtonAshleyAshteadAylesburyBanburyBansteadBarnhamBasingstokeBeaconsfieldBearstedBentleyBexhill-on-SeaBicesterBillingshurstBletchleyBognor RegisBordonBracknellBrighton and HoveBroadstairsBuckinghamBurgess HillBursledonByfleetCamberleyCanterburyCartertonCaterhamCavershamChalfont St PeterChandler's FordChathamChertseyCheshamChichesterChinnorCobhamCowesCoxheathCranleighCrawleyCrowboroughCrowthorneDartfordDealDidcotDorkingDoverEast CowesEast GrinsteadEastbourneEastleighEcclesEdenbridgeEghamEmsworthEpsomEsherEwellFarehamFaringdonFarnboroughFarncombeFarnhamFavershamFlackwell Heath and Wooburn GreenFleetFolkestoneFreshwater and TotlandFrimleyGerrards CrossGillinghamGodalmingGosportGravesendGreat Bookham and FetchamGroveGuildfordHailshamHaslemereHassocks and HurstpierpointHastingsHavantHawkingeHaywards HeathHazlemereHeathfieldHedge EndHenley-on-ThamesHerneHerne BayHershamHigh WycombeHolburyHoo St WerburghHookHorleyHorndeanHorshamHytheHythe and Dibden PurlieuKidlingtonKings HillLancing and SomptingLarkfieldLeatherheadLee-on-the-SolentLeighLewesLittlehamptonLocks HeathLongfield, New Ash Green and HartleyLymingtonMaidenheadMaidstoneMargateMarlowMilton KeynesMinsterNew Haw, West Byfleet and SheerwaterNew MiltonNewburyNewhavenNewportNewport PagnellNorthfleetOld Windsor and WraysburyOtford and KemsingOxfordOxtedPaddock WoodPeacehavenPetersfieldPolegatePortsmouthPrestwood and Great MissendenPrinces RisboroughRamsgateReadingRedhillReigateRingwoodRipleyRochesterRomseyRoyal Tunbridge WellsRusthall and Langton GreenRustingtonRydeSandhurstSandownSeafordSelseySevenoaksShanklinSheernessShoreham-by-SeaSittingbourneSloughSnodlandSouth HaylingSouth MersthamSouthamptonSouthboroughSouthwaterSouthwickSpencers Wood and Three Mile CrossStaines-upon-ThamesStanwellStoneStorringtonSunbury-on-ThamesSwanleySwanscombeTadleyTadworth and Epsom DownsTenterdenThameThatchamTonbridgeTottonTwyfordUckfieldWallingfordWalton-on-ThamesWantageWarlinghamWaterloovilleWendoverWest EndWest End and ChobhamWest MoleseyWeybourneWeybridgeWhitchurchWhiteleyWhitstableWickWinchesterWindsorWinnershWitneyWokingWokinghamWoodleyWoottonWorcester Park and StoneleighWorthingWreccleshamYateley
England · South West127 place pages
AmesburyBarnstapleBathBidefordBishop's CleeveBlandford ForumBodminBournemouthBradford-on-AvonBradley StokeBridgwaterBridportBristolBrixhamBrockworthBudeBurnham-on-SeaCalneCamCamborneChardCheltenhamChippenhamChipping SodburyChristchurchChurchdownCinderfordCirencesterClevedonCorfe MullenCorshamCreditonCullomptonDawlishDevizesDorchesterDursleyExeterExmouthFalmouthFerndownFiltonFrampton Cotterell and WinterbourneFromeGillinghamGlastonburyGloucesterGroveHayleHeathfieldHelstonHighworthHonitonIlfracombeIvybridgeKeynshamKingsteigntonKingswood and FishpondsLauncestonLiskeardLydneyMarlboroughMelkshamMidsomer NortonMineheadNailseaNewquayNewton AbbotOkehamptonPaigntonPatchwayPenrynPenzancePlymouthPool and IlloganPoolePortisheadQuedgeley and HardwickeRadstockRedruthRoyal Wootton BassettSalisburySaltashSeatonShaftesburyShepton MalletSherborneSidmouthSouthwellSouthwickSt AustellSt IvesStoke GiffordStonehouseStratton St MargaretStreetStroudSwanageSwindonTauntonTavistockTeignmouthTewkesburyThornburyTidworthTivertonTorquayTotnesTrowbridgeTruroUptonVerwoodWarminsterWellingtonWellsWest HillWest MoorsWestburyWeston-super-MareWeymouthWhitchurchWickWimborne MinsterWroughtonYateYattonYeovil
England · West Midlands93 place pages
AldridgeAtherstoneBedworthBewdleyBiddulphBilstonBirminghamBloxwichBridgnorthBrierley HillBromsgroveBrownhillsBurntwoodBurton upon TrentCannockCatshillCheadleCodsallCoseleyCoventryCradley HeathDarlastonDroitwich SpaDudleyEckingtonEveshamFazeleyFeatherstoneGreat MalvernGreat Wyrley and Cheslyn HayHalesowenHerefordHuntingtonKenilworthKidderminsterKidsgroveKingswinfordKnowle and DorridgeLedburyLeekLeominsterLichfieldLudlowMarket DraytonNewcastle-under-LymeNewportNorton CanesNuneatonOldburyOswestryPelsallPenkridgePershorePertonPheaseyPolesworth and DordonRedditchRoss-on-WyeRowley RegisRoyal Leamington SpaRoyal Sutton ColdfieldRugbyRugeleyRushall and ShelfieldSedgleyShifnalShrewsburySmethwickSolihullSouthamStaffordStoke-on-TrentStoneStourbridgeStourport-on-SevernStratford-upon-AvonStreetlySwindonTamworthTelfordTiptonUttoxeterWalsallWarwickWednesburyWest BromwichWhitchurchWhitnashWillenhallWolverhamptonWombourneWood EndWorcester
England · Yorkshire and The Humber123 place pages
Adwick le StreetArmthorpeBaildonBarnsleyBarton-upon-HumberBarugh Green and RedbrookBatleyBentleyBeverleyBingleyBolton upon DearneBradfordBridlingtonBrighouseBrinsworthBroughCarltonCastlefordCatterick GarrisonChapeltown and High GreenCleckheatonCleethorpesConisbroughCottinghamCudworth and ShaftonDartonDewsburyDinningtonDoncasterDriffieldDunscroft and HatfieldEast ArdsleyEcclesfield and GrenosideEllandFeatherstoneGarforthGoldthorpeGomersal and BirkenshawGooleGrimsbyGuiseleyHalifaxHarrogateHaxbyHeckmondwikeHedonHemsworthHessleHonleyHookHorburyHornseaHoylandHuddersfieldHumberston and New WalthamHuntingtonIlkleyImminghamKeighleyKingston upon HullKippaxKirk Sandall and EdenthorpeKnaresboroughKnottingleyLeedsLinthwaite and SlaithwaiteLiversedgeMaltbyMarket WeightonMelthamMexboroughMirfieldMorleyNew Rossington and RossingtonNormantonNorthallertonNorton-on-DerwentOssettOtleyPenistonePocklingtonPontefractPrestonPudseyQueensburyRawmarshRichmondRiponRotherhamRothwellRoystonScarboroughScawthorpe and CusworthScunthorpeSelbySheffieldShelf and NorthowramSherburn in ElmetShipleySilsdenSkiptonSouth ElmsallSouth KirkbySprotbroughStocksbridgeSwallownest and AstonSwintonThorneThorntonThurnscoeTodmordenUptonWakefieldWarmsworthWath upon DearneWetherbyWhitbyWickersley and BramleyWillerby and AnlabyWombwellWorsbroughYeadonYork
London · Barking and Dagenham11 place pages
London · Barnet3 place pages
London · Brent8 place pages
London · Bromley8 place pages
London · Croydon2 place pages
London · Ealing22 place pages
London · Enfield2 place pages
London · Greenwich1 place pages
London · Hammersmith and Fulham13 place pages
London · Haringey19 place pages
London · Harrow1 place pages
London · Havering1 place pages
London · Hillingdon3 place pages
London · Hounslow15 place pages
London · Islington15 place pages
London · Kensington and Chelsea10 place pages
London · Kingston upon Thames2 place pages
London · Lambeth18 place pages
London · Lewisham4 place pages
London · Merton1 place pages
London · Newham7 place pages
London · Redbridge1 place pages
London · Southwark18 place pages
London · Tower Hamlets4 place pages
London · Waltham Forest18 place pages
London · Wandsworth5 place pages
Northern Ireland10 place pages
Scotland50 place pages
AberdeenAirdrieArbroathAyrBarrheadBathgateBearsdenBellshillBishopbriggsBlantyreBonnyriggBroxburnCambuslangClydebankCoatbridgeCumbernauldDumbartonDumfriesDundeeDunfermlineEast KilbrideEdinburghElginFalkirkGlasgowGlenrothesGrangemouthGreenockHamiltonInvernessIrvineJohnstoneKilmarnockKilwinningKirkcaldy and DysartKirkintillochLivingstonMotherwellMusselburghNewton MearnsPaisleyPenicuikPerthPeterheadRenfrewRutherglenSt AndrewsStirlingViewparkWishaw