4-20 EMISSION CONTROLS DIAGNOSTIC TROUBLE CODES Listings oi the Diagnostic Trouble Codes tDTCsI tor the various engine control systems covered in this manual are located in this section When using these codes. remember that a code only points to the laulty circuit NOT necessarily to a laulty component. Loose. damaged or corroded cone nectipns may contribute to 3 [anti code on a circuit when the sensoror component it operating properly Be sure that components are taultyhatn' replacing them, especially the expensive ones ENGINE (Liters) Mk 2.5L 3 0L 3.0L 3.8!. M FLB 5H0 AXD Sl'vbl Godli FUEL SYSTEM M M El SEFI SEI t 1Systern pass 0/ RIC .4 .4 .4 .4 tZRprn unahteto reach uppertast limit it .4 .4 . .4 .4 taDC motor movement not detected 0 .4 layRpm unaotetoachievetowertesttimit R .4 .4 .4 .4 13DC mordid tollow dashpot C .4 tAPIPeiroulttailure c .4 .4 tSECA read onlymemorytesttalled 0 .4 .4 .4 .4 tsEcAmep alivernemorytesttaited C .4 .4 16ldle rpm highwilh ISCott R .4 tGldle too low to pertorrn EGO test it 17Idterpmlowwithlscoif R .4 15SPOUT drcuit open or spark angle word tailure .4 .4 .4 tIDM drouiti'ailureorSPOUT circuit grounded C .4 .4 .4 ,4 19Failure in ECA internal voltage 0 y 19ch circuit failure 0 .4 tBRprndroppedtootowintSColttest R 19Rpm for EGR test not achieved it 21ECT out of sell-test range 0/ R .4 .4 .4 .4 228? sensor urn oi sell-test range D/C .4 zzEP or MAP out at setlrtest range OIRIC .4 .4 .4 23TP out of sell-test range 0/ R .4 .4 .4 23TP out at Seattle range om/c .4 24AH sensor out at setHeit range 0/ R .4 .4 .4 ZsKnock not sensed during dynamic test .4 .4 26VAFIMAF out at sen-test range OIR .4 zitVAT out oi sen-test range 0m ZStnsufoient input from vehicle speed sensor (2 .4 .4 .4 SIPFE, EVPDrEVFl circuit below minimum voltage OIRIC .4 .4 .4 .4 32EPT circuit voltage low (PFE) RIC .4 .4 .4 32-EVontlage below closed limit DIR/C .4 BZEGRnot controlling R aaEGR valve opening not detected n/c .4 .4 .4 .4 33EGR mtclosing lully R 34Detective PFE sensor or voltage out at range 0 .4 .4 4 SciEFT sensorwltage high (PFE) R/C .4 .4 .4 MMmmgeabwewwdlimit DIR/C .4 adEGR opening not detected R 35PFEorEVPoircuitabovemaxdmumvoltage OIHIC .4 .4 .4 .4 (isRpm too low to perlornt EGR test R 38ldte tracking switch circuit open C .4 39.Ax0o lock up tailed c .4 41HEGO sensor circuit indicates system lean R .4 .40 .4 41Nu HEGO switching detected R .4 .4 .4 E .4 G) 42HEGO sensor circuit indicates system rich Fl .4 .4 Q .4 G) 42No HEGO switching detectedreads rich 0 43HEGOteanatwtdeopenthrottle C MThermactor air system inoperativeride side R ASThennactor air upstream during sell-test R .4 45Ooil 1 primary circuitlailure C 46Mermactor air not bypassed during sell-test R .4 46Coil 2 primary circuit failure 0 .4 47Measured airow low at base idle B 4800 3 primary circuit lailure c .4 48Measured airtlow high at base idle R 49'SPUUT signal detaulledtu10BTDC or SFOUT open C .4 51EcT/ACT reads 40F or circuit open 0/0 .4 .4 .4 52~Pawer steering pressure switch drcuit open 0 .4 .4 .4 .4 SZPmm steering pressure switch always open or closed R .4 .4 .4 saw. a uklr rut {more tutmt fIJEL 3mm Math anrvlu Cam -M mutagmnettl 2 am otrns dmtit ultm (LIL axon SEFI .4 3 HL sun sin .4 ML EFI .4 ZriL FLC on .4 utr TIII t 9/2 Elllili (Hill!) WEI. swarm rm. .. 1...... ....m..t....mm..n. amt:- mu