2006 LAND ROVER FRELANDER 2 engine

1
2
3
1
2
3
DT CDescriptionPossible CauseAction
P240C00Evaporati ve emis s ions yst em leak detecti onpump heat er circui t high
Fuel t ank l eakage pump heat ercont rol ci rcuit : s hort circuit topowerFuel t ank l eakage moni toring pumpfail ure
Check t he fuel t ank leakage moni toringpump and circui ts . Refer t o t he elect ricalguides. Ins tall a new pump as neces s ary
P245000Evaporati ve emis s ioncontrol s ys tem s wit chi ngvalve performance/s t uckopen
Evaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV)ci rcuit : s hort ci rcuit t o groundEvaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV)ci rcuit : open ci rcuitEvaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV)ci rcuit : s hort ci rcuit t o powerEvaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV) fault
Check t he COV and ci rcuit s. Refer t o t heelectrical gui des . Rect ify as neces s ary.Ins t al l a new COV as neces s ary (the COVis integral wi th the fuel tank leakagemonit ori ng pump)
P245100Evaporati ve emis s ioncontrol s ys tem s wit chi ngvalve s t uck clos ed
Evaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV)ci rcuit : s hort ci rcuit t o groundEvaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV)ci rcuit : open ci rcuitEvaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV)ci rcuit : s hort ci rcuit t o powerEvaporat ive emi ss i on cont rolsys tem s wit chi ng valve (COV) fault
Check t he COV and ci rcuit s. Refer t o t heelectrical gui des . Rect ify as neces s ary.Ins t al l a new COV as neces s ary (the COVis integral wi th the fuel tank leakagemonit ori ng pump)
Pinpoint Tests
PINPOINT TEST A : EVAPORATIVE SYSTEM INCORRECT PURGE FLOW
T ESTCONDIT IONSDET AILS/RESULT S/ACT IONS
A1: CHECK FUEL FILLER CAP INST ALLAT IO N AND CONDIT IO N OF CANIST ER, PIPES AND CONNECT ORSMake s ure t hat the fuel fil ler cap is correctl y ins tal led and t ight ened.
Check t he condi ti on of the carbon canis t er.
Check t he condi ti on of all acces si ble pi pes and connect ors i n t he vapor l ine.
Are the canis ter and al l pi pes and connect ors i n good condi ti on?YesGO to A2.NoREPAIR as necess ary. CLEAR t he DTC, tes t the sys tem for normal operat ion.
A2: CHECK T HAT T HE PURGE VALVE IS OPERAT INGDis connect the vapor pipe from the inlet port of t he evaporat ive purge val ve.
RUN the engine for 2 mi nutes , making s ure that the engi ne reaches normal operat ing temperat ure.
Check t hat the evaporat ive purge valve i s operat ing, by touch or by s ound (us ing a st ethos cope, itwil l be poss i bl e t o hear the valve operat ing).
Is the valve operat ing?YesCHECK for relat ed DTCs . Refer t o t he DTC Index above.NoCHECK for purge val ve rel at ed DTCs and refer to DTC Index.

Publi s hed: 11-May-2011
Electronic Engine Controls - I6 3.2L Petrol -
ItemSpecification
Heated oxygen s ens or (H02S)removal *Apply W D40 or equi val ent
Heated oxygen s ens or (H02S)t hreadsApply s uit abl e high temperat ure ant i-s ei ze compound t o t hreads of sens or (Cas trolOpti mol)
* Apply to area around sensor threads prior to attempting to remove sensor
General SpecificationItemSpecification
Engine management system:
MakeDens oCamshaft position sensor:
MakeDens o
TypeMRE (hal l affect)Crankshaft position sensor:
MakeDens o
TypeVariable reluctance
Torque Specifications
DescriptionNmlb-ftCams haft pos it ion (CMP) sens or bol t+107
Catal ys t moni tor s ens or4533
Catal ys t moni tor s ens or harnes s s upport bol t65Cranks haft posi ti on (CKP) s ensor Torx bol t107
Engine control modul e (ECM) bracket bolt s64
Flywheel sens or bol t107Flywheel sens or bracket s crews107
Fuel rail pres s ure s ens or65
Heated oxygen s ens or (H02S)++4533Knock sens or ret ai ning bolt2014
Mas s air flow (MAF) s ens or Torx s crews21
+ Apply clean engine oil to a new CMP sensor O-ring seal
++ Apply anti-seize lubricant to threads of sensor - See Lubricants

Publi s hed: 11-May-2011
Electronic Engine Controls - I6 3.2L Petrol - Electronic Engine Controls
Des cript ion and Operat ion
COMPONENT LOCATION SHEET 1 OF 2
ItemPart NumberDescription1-Heat ed Oxygen Sens or (HO2S) Pre-cat alys t
2-HO 2S Pre-cat al yst
3-Variable Camshaft Ti ming (VCT) s olenoi d4-Mas s Ai r Fl ow (MAF) sens or

5-Cams haft Profi le Swi tching (CPS) sol enoid - rear
6-Pl enum variabl e int ake manifol d valve
7-Intake t ract vari abl e int ake manifol d valve8-Engine Cool ant Temperat ure (ECT) sens or
9-Engine oi l level/temperat ure s ens or
10-Engine Cont rol Module (ECM)11-Cams haft Pos it ion (CMP) s ens or (2 off)
12-Fuel rai l t emperat ure/press ure s ens or
13-Knock s ens ors (2 off)14-Cranks haft Pos it ion (CKP) sens or
15-El ect ri c thrott le
16-Purge val ve17-Mani fold Abs olut e Pres s ure (MAP) s ens or
18-Injectors (6 off)
19-CPS sol enoid - Front20-Ignit ion coil (6 off)
21-HO 2S Pos t -catal ys t
22-HO 2S Pos t -catal ys t
COMPONENT LOCATION SHEET 2 OF 2
ItemPart NumberDescription
1-Accel erat or Pedal Pos i ti on (APP) s ens or
2-Speed cont rol i nhi bit or s wi tch3-St op lamp s wit ch

4-Fuel Pump Dri ver Module (FPDM)
5-Ambi ent ai r temperat ure sens or
6-Bat tery Juncti on Box (BJB)7-Bat tery
OVERVIEW
The Engi ne Control Module (ECM) controls t he fol lowing:
Engi ne fuel ingIgni ti on ti mingClos ed loop fuelingKnock controlIdl e s peed cont rolEmis s ion controlOn Board Diagnost icsSpeed cont rol.
The ECM controls engine fuel ing by provi ding s equent ial fuel inject ion t o al l cyli nders . Ignit ion i s cont rol led by a directignit ion sys tem, provi ded by 6 pl ug top coil s . The ECM is abl e t o detect and correct for i gni ti on knock on each cyl inder andadjus t the ignit ion t imi ng for each cyl inder to achieve opt imum performance.
The ECM us es a t orque-bas ed s trategy t o generate the t orque requi red by t he dri ver and ot her vehicle cont rol modules .The ECM us es various s ens ors t o determine t he t orque requi red from the engine. The ECM al so int erfaces wi th ot hervehi cl e elect ronic control modul es vi a t he high s peed Control ler Area Network (CAN) bus , to obt ain addit ional informat ion(for exampl e road speed from the Ant i-lock Brake Sys tem (ABS) module). The ECM proces ses t hese si gnal s and deci deshow much t orque t o generate. Torque i s t hen generat ed by us ing vari ous act uat ors to supply ai r, fuel and s park t o t heengi ne.
The ECM al so us es an el ect ronic throt tl e s yst em which compris es t he electric t hrot tle as sembl y and an Accel erator PedalPosi ti on (APP) s ensor.
The ECM al so interfaces wit h t he immobili zat ion sys tem t o help prevent t he vehi cl e being s t art ed wit hout properauthori zat ion.For addit ional informat ion, refer t o: Anti -Theft - Act ive (419-01, Des cri pt ion and Operati on).
CONTROL DIAGRAM SHEET 1 OF 2
• NOTE: A = Hardwi red; N = Medium s peed CAN bus; O = Local Int erconnect Network (LIN) bus

ItemPart NumberDescription
1-Ins t rument clus ter2-Int ake CMP s ensor
3-Exhaus t CMP s ensor
4-CKP s ensor5-Pre-cat alys t HO2S
6-Post cat al yst HO 2S
7-ECM8-MAF/IAT
9-Engine oil l evel /t emperature s ens or
10-Ambient Ai r Temperat ure (AAT) s ens or11-ECT s ensor

12-Res trai nts Cont rol Module (RCM)
13-Knock sens ors (2 off)
14-Fuel rail t emperature/pres s ure s ens or15-Clockspring
16-Terrain respons e cont rol module
17-Trans mis s ion Cont rol Module (TCM)18-ABS module
19-Diagnos ti c socket
20-CJB
ENGINE CONTROL MODULE (ECM)
The ECM i s located on a bracket i n a central pos i ti on on the engi ne compartment firewal l. The ECM is at tached to ahous i ng and s ecured wit h 4 s crews . The hous i ng is l ocat ed in the bracket and locked in pos it ion.
The ECM i s s uppl ied wi th bat tery volt age from fuses l ocat ed in the BJB. A permanent batt ery s upply i s provided t o ens ureadapt ive dat a is not l ost when the engine i s s wit ched off.
A regul ator, locat ed wi thin the ECM, s upplies a 5V current t o i nt ernal components such as t he mi cro-proces s or unit . Ot hercomponents or funct ions requi ri ng ful l bat tery vol tage are cont rol led by ext ernal relays or int ernal power s t ages .
The mi cro-proces sor wi thi n the ECM receives s ignals from different component s and cont rol modules and us es a programwit hin the ECM software t o int erpret t he s ignal informat ion and i ss ue s ignals whi ch rel at e t o how the engine component sand functi ons should be cont rol led.
The ECM recei ves i nput s from the foll owing:
CMP s ensorsCKP s ensorFuel rail pres s ure s ensorMAF s ensorKnock s ens orsFuel rail t emperature/pres s ure s ensorECT s ens orEngi ne oil l evel/t emperature s ens orManifol d Abs olute Pres sure (MAP) sens orElectric t hrot tl e - Throt tl e Posi ti on (TP) s ens orAPP s ens orFuel t ank leakage monit oring modul e (NAS onl y)Cooling fan controlHeated Oxygen s ens ors (HO2S)Stop lamp s wi tch (via Central Juncti on Box (CJB))Speed cont rol inhibi t swi tchInt ake Air Temperat ure (IAT) s ens orAmbient Air Temperat ure (AAT) s ens orTrans mis s ion Cont rol Modul e (TCM).
The ECM s ends out puts to t he followi ng:
Main relayAir Condit ioning (A/C) relayFuel i njectorsIgni ti on coi lsEngi ne cool ing fan cont rolElectric t hrot tl eElectric fuel pump driver moduleVari abl e Cams haft Timing (VCT) s olenoidsStarter rel ay cont rolVari abl e int ake manifol d control valvesVari abl e inl et cam profile swit ching sol enoi d val vesTrans mis s ion Cont rol Modul e (TCM).
SENSORS
The ECM opt imi zes engine performance by interpreti ng s ignals from numerous vehicle sens ors and ot her i nput s. Some oft hes e s ignals are produced by t he act ions of t he dri ver, some are s uppli ed by s ens ors locat ed on and around t he engine

and s ome are s uppli ed by ot her vehicle s ys tems .
Camshaft Position (CMP) Sensor
Two CMP sens ors are located i n t he camshaft hous ing at t he Left Hand (LH) end of the engine. The s ens ors are l ocat ed ina hole in t he housi ng and are secured wit h a s crew. There i s a CMP sens or for each cams haft .
The CMP s ensors monit or the pos it ion of t he cams hafts to es t abl is h i gni ti on t imi ng order, fuel i njecti on triggeri ng and foraccurat e Vari able Cams haft Ti ming (VCT) operati on. The ECM can al so use the CMP sensors t o det ermi ne which cylinderhas a mi s fi re or knock us i ng the CMP s ignal out put .
The CMP s ensor i s a Hal l-effect s ens or which s wi tches a 5V s upply from the ECM on and off. The s uppl y is s wi tched whent eet h machined onto a puls e wheel on the cams haft pas s by t he ti p of t he s ens or. The t eeth are of differing s hapes , s ot he ECM can determine t he exact pos it ion of t he camshaft at any t ime. W hen one of the t eeth pas s es by t he sens or ti p, as ignal is t rans mit t ed to the ECM which can vary between 0 and 5V. The si gnal i s high when a toot h is di rectl y adjacent t ot he sens or and is l ow when t he t oot h i s away from t he s ensor.
Failure of one or bot h of t he s ens ors wil l res ul t in the ECM usi ng a default map for i gni ti on t imi ng and knock cont rol wi ll bedis abled.
The ECM moni tors the sens or for correct functi on and can diagnos e and s t ore fault codes for s ens or fault s . Thes e can beret ri eved us i ng a Land Rover approved diagnos t ic s ys tem.
Crankshaft Position (CKP) Sensor
The CKP s ensor i s located on t he forward s ide of t he trans mi s si on t orque convert er hous ing, in li ne wit h t he engi nefl ywheel . The sens or is s ecured wi th a bol t int o a bracket att ached t o t he gear housing. A reluctor ring i s fi tt ed t o t heouter diamet er of t he cranks haft fl expl at e and t he s ens or reacts to the gaps i n the reluctor ring t o det ermi ne engi ne s peedand posi ti on informat ion. The s ens or has 2 wi res from the ECM s ens or ground and a feedback s ignal.
The CKP s ensor i s an inducti ve type s ensor which produces a s i nus oidal out put vol tage s i gnal. Thi s vol tage i s induced byt he proximi ty of t he moving reluctor ring gaps , whi ch exci te t he magneti c fl ux around t he ti p of t he s ens or when each gappass es . Thi s output volt age wil l i ncrease in magni tude and frequency as t he engine speed ri ses det ermi ned by an increas ein the s peed at which t he gaps on t he reluct or ring pas s t he s ens or. The s i gnal voltage can be as low as 0.1V at lowengi ne s peeds and up to 100V at hi gh engi ne s peeds . The ECM does not react t o t he output volt age (unles s t he vol tage i sextremely l ow or high), i nst ead it meas ures the t ime int ervals bet ween each puls e (signal frequency). The s ignal i sdetermined by t he number of gaps pas si ng t he sens or, and t he s peed at whi ch they pass. The reluctor ring has 2 gapsmi ss i ng to gi ve t he ECM a s ynchroni zat ion poi nt and det ermi ne t he pos i ti on of the cranks haft. The CKP sens or si gnal i sals o us ed for mis fi re det ect ion.
The s ignal produced by t he CKP s ensor i s crit ical to engi ne running. Failure of the sens or when the engine is runni ng wil lres ult i n t he engi ne s topping i mmediat ely. The engi ne can be res t arted us i ng s ignal s from the CMP s ens ors but t he engines peed will be limit ed to 3000 rpm and the Mal functi on Indicator Lamp (MIL) will be ill uminat ed.
The ECM moni tors the sens or for correct functi on and can diagnos e and s t ore fault codes for s ens or fault s . Thes e can beret ri eved us i ng a Land Rover approved diagnos t ic s ys tem.
Fuel Rail Pressure/Temperature Sensor