2006 LAND ROVER FRELANDER 2 engine coolant

Publi s hed: 11-May-2011
Electronic Engine Controls - I6 3.2L Petrol - Engine Coolant Temperature
(ECT) Sensor
Removal and Inst all ati on
Removal
• NOTE: Removal s t eps in t his procedure may cont ain i nst all ati on det ail s.
Rais e and s upport t he vehi cl e.1.
Remove t he int ake mani fol d as sembl y.
Refer t o: Int ake Mani fol d (303-01A Engi ne - I6 3.2L Petrol, Removaland Inst all at ion).
2.
3. CAUTIONS:
Be prepared t o collect es caping flui ds .
Not e t he fi tt ed pos it ion of t he seal .
Remove t he ECT s ens or.
3.
Installation
1. CAUTION: Make s ure that the mati ng faces are cl ean andfree of foreign mat eri al.
To i nst all , revers e t he removal procedure.
1.

5-Pres s ure cont rol val ve
6-Fuel pump (i ncorporati ng vol ume control valve)
7-engine coolant temperature (ECT) s ens or8-heated oxygen s ens or (HO 2S)
9-Variable nozzle t urbocharger (VNT) cont roll er
10-cranks haft posi ti on (CKP) s ensor11-Gl ow plugs (4 off)
12-exhaus t gas reci rculati on (EGR) valve
13-mas s ai r fl ow (MAF)/i ntake air t emperat ure (IAT) s ens or14-Oi l level and t emperat ure s ens or (Dies el Parti cul ate Fi lt er (DPF) vehi cl es onl y)
15-engine oi l press ure (EOP) s ensor
16-IAT s ensor17-El ect ri c throt t le
COMPONENT LOCATION SHEET 2 OF 2
• NOTE: left-hand (LH) drive vehi cle s hown, ri ght -hand (RH) dri ve si mil ar

Publi shed: 12-Jul-2011
Electronic Engine Controls - TD4 2.2L Diesel - Electronic Engine Controls
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the el ect ronic engi ne cont rols , refer to the relevant Des cri pti on and Operati on s ect ion i n t heworks hop manual .REFER to: Elect ronic Engine Cont rols (303-14 El ect ronic Engine Cont rols - TD4 2.2L Di esel , Des cri pti on and Operati on).
Inspection and Verification
CAUTION: Di agnos is by s ubs ti tut ion from a donor vehicle is NO T acceptabl e. Subs ti tut ion of cont rol modules doesnot guarant ee confirmat ion of a faul t, and may als o caus e addit ional fault s i n t he vehi cl e being t est ed and/or t he donorvehi cl e.
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for obvious s igns of mechani cal or electrical damage and sys tem integrit y.2.
Visual InspectionMechanicalElectrical
Fuel l evel (mini mum of four lit ers for run out of fuel s t rategy)Contami nat ed fuelEngine oil l evelCooli ng sys t em cool ant levelFuel s ys temAir i ntake s yst emVacuum s ys t em
W i ri ng harnessElectrical connect or(s)Fus es (s )Relay(s )
3. If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) beforeproceeding t o t he next s t ep.3.
4. If t he caus e is not vis ually evi dent , verify t he sympt om and refer t o t he Sympt om Chart, al ternat ively, check forDi agnos ti c Trouble Codes (DTCs) and refer t o t he DTC Index.4.
Symptom Chart
SymptomPossible CauseAction
Engine Non-StartEngine does not crankSecurit y s yst em/Immobi li zerengagedBatt eryPowert rai n cont rol module relayPark/Neut ral s wit chBrake/cl ut ch s wit chesThrot tl e valve s tuckSt arti ng s yst emEngine s eized
Check t hat securi ty s ys tem is di sarmed. Ens urebat t ery i s in full y charged and s erviceabl e condi ti on.Check for DTCs and refer t o rel evant DTC Index.Check Park/neut ral and Brake/cl ut ch s wit ches .Ens ure correct s tart procedure is bei ng adhered to.Check engine i s not sei zed
Engine cranks but does nots tartContami nat ed fuelEngine breat her s ys temdis connected/res trictedThrot tl e valve s tuckAir i ntake s yst emFuel s ys temElectronic engine controls
Check for fuel cont aminati on. Check engi ne breat herand air int ake sys t em i nt egri ty. Ensure correct s tartprocedure is bei ng adhered to. Check for DTCs andrefer t o t he rel evant DTC Index
Difficult T o Start
Di fficul t t o s tart col dCheck engi ne coolant l evel/anti -freeze cont entBatt eryElectronic engine controlsExhaus t gas recircul ati on (EGR)valve s t uck openFuel pump
Check engine coolant level/condit ion. Ensurebat t ery i s in full y charged and s erviceabl e condi ti on.Check for DTCs and refer t o rel evant DTC Index
Di fficul t t o s tart hotElectronic engine controlsInjector leakFuel s ys temIntake air s ys temExhaus t gas recircul ati on val ves tuck openBlocked exhaus t/cat alyt icconverterEngine compres s ions low
Check for DTCs and refer t o t he rel evant DTC Index.Check engine, fuel, i ntake air, exhaus t, s ys tems forint egrit y

Publi s hed: 11-May-2011
Electronic Engine Controls - TD4 2.2L Diesel - Engine Coolant Temperature
(ECT) Sensor
Removal and Inst all ati on
Removal
Remove t he air cleaner as s embly.
Refer t o: Air Cleaner (303-12A Intake Ai r Dis tribut ion and Fil tering -I6 3.2L Pet rol, Removal and Ins t al lat ion).
1.
Remove t he engi ne cover.
Refer t o: Engi ne Cover - TD4 2.2L Dies el (501-05 Interior Tri m andOrnament ati on, Removal and Ins tal lat ion).
2.
Drai n t he cool ing s ys tem.
Refer t o: Cool ing Sys tem Drai ni ng, Fi lli ng and Bleeding (303-03BEngine Cooli ng - TD4 2.2L Di esel , General Procedures ).
3.
4. W ARNING: Do not work on or under a vehi cle s upported onl yby a jack. Al ways support t he vehi cl e on s afet y s tands .
Rais e and s upport t he vehi cl e.
4.
5. CAUTIONS:
Be prepared t o collect es caping coolant.
A new O-ri ng s eal i s to be ins tal led.
5.
6. NOTE: Remove and dis card t he O-ring seal.6.

W hen movi ng from a st andst il l, ups hi ft s can be pre-s el ect ed by making '+' s el ect ions wi th the s elect or l ever for thenumber of ups hifts requi red. The TCM t hen performs t he reques ted number of upshi ft s when appropri at e s hift points arereached. For exampl e; when moving off in 1s t gear, if 3 '+' s elect ions are made i n quick s ucces si on, t he TCM willautomat ically ups hift t hrough the gears to 4t h gear as t he vehi cl e accelerates , wit hout any furt her s electi ons bei ng made.
Cooling
Cooling mode is act ivated when t he TCM det ect s exces s ively hi gh trans mi s si on fl uid or engine coolant temperatures . W hent hi s mode i s act ive torque converter l ock-up is acti vat ed earl ier t o mi ni mi ze a further ris e in fl uid and/or engine coolantt emperature and ass i st flui d cool ing.
Hill Descent Control (HDC)
The HDC mode as s is t s t he ABS module i n cont rol li ng the downhil l speed of t he vehi cl e. W hen HDC i s acti ve, t he TCMs elect s t he mos t appropri at e gear for t he descent to maxi mi ze engi ne braking.
Maximum engi ne braking i s applied us i ng a s hift map which i nit iat es later ups hift s and earl y downshi ft s .
Cruise
W hen s peed cont rol i s act ivated, t he TCM receives a speed control acti ve mes s age on the hi gh s peed CAN bus . The TCMact ivat es a s peed cont rol map whi ch minimizes up and down s hifts .
Crui se mode is act ive when s peed cont rol is sel ect ed on and t he transmis s ion i s in drive 'D', s port 'S', HDC or Terrai nRespons e Gras s /gravel /s now program. Unique cruis e maps overri de the current mode t o provide a smoot h driving feel andmode resel ect ion.
Limp Home
If a transmis s ion faul t is det ect ed by t he TCM, the TCM adopt s a l imp home s trategy and a mes s age 'TRANSMISSIONFAULT LIMITED GEARS AVAILABLE' i s dis played in the mes s age cent er. If the fault has an effect on engi ne emis s ions , theMIL in the i nst rument clus t er wi ll als o be il luminat ed.
In li mp home mode, P, R and N functi ons operate normall y (i f the fault al lows t hes e s elect ions) and t he TCM locks t het ransmis s ion i n 3rd gear t o all ow t he dri ver t o t ake the vehicle to a Land Rover deal er or approved repai rer. Torqueconvert er lock-up i s dis abled and reverse-lock-out wil l not funct ion.
If the vehicle is s t opped and s ubsequentl y res tarted in t he li mp home mode condi ti on, t he TCM operat es normall y unti l thefaul t which caus ed t he condi ti on is det ect ed agai n.
Coast
Coast mode provides earli er downs hifts during coast ing dependant on out put shaft decelerat ion rate to improve driveabili tyand refinement by avoi ding negati ve to pos it ive driveli ne torque revers als t rans mi ssion during t he downshi ft s .
Fast Off Recognition
Fast off recogni ti on is act ivated when t he TCM det ect s t hat t he dri ver has releas ed the accel erat or pedal qui ckl y. This isdetected by the TCM monit oring for a high level of negat ive pedal angl e from ECM s ignals on t he high speed CAN bus . Ift hi s condi ti on is det ect ed, t he TCM hol ds the current gear rati o to allow the driver t o compl ete the manoeuvre wi thout t heneed for a downs hift. The mode can remain acti ve for a predet ermined lengt h of ti me or i f the driving s t yl e remainspass i ve.
Fast off recogni ti on mode as si s ts vehicle st abili ty and is us ed i n conjunct ion a lateral accel erat ion i nput duri ng corneri ng tomaint ain t he current gear unti l the corner is negot iated.
Uphill and Trailer
Uphill and t rai ler mode can be acti ve when the trans mi s si on is operat ing in normal, s port or Terrai n Res pons e modes .W hen t he vehicle i s pull ing a t rai ler or dri vi ng up an i ncl ine, the TCM det ects t he i ncreas ed res i st ance by monit oring enginet orque and s peed s i gnal s received from the ECM on the hi gh s peed CAN bus and als o t rans mis s ion out put s haft s peeds ens or s ignals . Uphi ll and t rai ler mode wi ll provide downs hift s t o prevent a drop in t rans mi ss i on torque out put andmaint ain driving force.
Downhill
Downhill mode can be act ive when t he t ransmis s ion i s operati ng in normal, s port or Terrain Res pons e modes . W hen t hevehi cl e i s descendi ng an i ncl ine t he TCM detect s a reducti on in res is t ance by moni toring engine t orque and s peed si gnal sreceived from the ECM on t he high s peed CAN bus and als o t rans mis s ion out put shaft speed s ensor s ignals . Downhill modeas si st s engine braki ng by s elect ing an appropriat e gear reduci ng the load required on t he brakes .
Wide Throttle
W i de open thrott le mode operates for part thrott le ups hifts and ki ck-down ups hifts . It provides cons i st ent wide opent hrott le ups hift performance under all driving condit ions. The full engine s peed range is used i n all driving modes ; normal ,s port, hi ll modes and Commands hi ft . Compens at ion i s used for delays (hydrauli c and electroni c) in gear change reques t togear change s tart to provi de s mooth changes and correct shi ft point correct ion.
Terrain Response
The Terrai n Res pons e s ys tem has a unique s et of shi ft maps for each of t he Terrai n Res pons e programs . Thes e programsoverri de exis ti ng modes; for exampl e when HDC is acti ve and the 'Sand', 'Mud and Ruts ' or 'Grass /Gravel/Snow' programsare sel ect ed, a specific Terrain Res ponse map is used, not the HDC mode s hift map detai led previ ous ly.

ItemPart NumberDescription
1-Air blas t transmis s ion cool er2-Engi ne coolant t rans mis s ion cooler
OVERVIEW
The AW F21 t rans mis s ion us es an external flui d cool er t o reduce t he t emperature of the trans mi s si on fl uid.
In s tandard cli mat e market s a plat e t ype cooler i s us ed and uses engine coolant t o reduce the fl ui d t emperature.
In hot cl imat e market s , an air blas t cool er is us ed in addi ti on to the pl ate t ype cool er us ed on s t andard climate vehicles .This provi des addit ional cool ing for the hi gher ambient t emperatures experienced i n t hes e countries .
COOLER - STANDARD CLIMATE

ItemPart NumberDescription
1-Engine coolant inlet2-Trans mi ss ion fl ui d pipe - to trans mi ss i on
3-Trans mi ss ion fl ui d pipe - from t rans mis s ion
4-Engine coolant out let5-Trans mi ss ion cooler
The t ransmis s ion fluid cooler i s att ached t o t he Left Hand (LH) end of the radi ator. The fl ui d cool er is an al uminum hous ingcompris i ng louvred fins and pl at es . The pl ates al low a cross -fl ow of t ransmis s ion fluid and engi ne cool ant t hrough t hecool er. The plat es are i mmersed in engine coolant from the 'col d' s ide of t he radi ator which provi des cooli ng of thet ransmis s ion fluid by the temperat ure di fferenti al bet ween the trans mi ss i on fl uid and t he engine cool ant.
The engi ne cool ing s ys tem has a low temperature zone in t he t op thi rd of t he radi at or. The engine coolant fl ow t hrought hi s s ect ion of t he radi at or is res tricted by the t rans mi ss ion fl ui d cool er. Therefore t he engi ne cool ant has a s lower fl owrat e acros s t he cool ing t ubes of t his s ecti on of the radiator. Thi s cool s t he engi ne cool ant more t han the lower part of theradi at or and cons equent ly provi des increased cooli ng of the t rans mi ss i on fl ui d.
Fluid is s upplied from t he t ransmis s ion fluid pump int o t he lower connecti on of the cooler. Aft er pas s ing t hrough thecool er, t he fl uid pas ses out of t he upper connecti on and is ret urned t o transmis s ion fluid pan.
COOLER - HOT CLIMATE

ItemPart NumberDescription
1-Engine coolant inlet2-Engine coolant out let (hidden)
3-Trans mi ss ion coolant t rans mis s ion cooler
4-Trans mi ss ion fl ui d pipe - to trans mi ss i on5-Trans mi ss ion fl ui d pipe - from t rans mis s ion
6-Trans mi ss ion ai r blas t cool er
In hot cl imat e market s , the t rans mi ss ion fl ui d cool ing s ys tem uses the s ame cooler as t he s tandard cli mat e s ys t em, butwit h an addit ional air blas t cool er locat ed i n front the radiator and t he Air Conditioning (A/C) condens er.
The operati on of the flui d cool er is as des cribed for the s t andard climate cooler. The ai r blas t cooler compri s es 2 endt anks , int erconnected wi th hol low pl ates . The plat es al low trans mi s si on fl uid t o flow from one end t ank to the ot her, wi tht he air fl owing over the pl ates cooling the flui d as it pas s es through t he cooler.
The t ransmis s ion fluid out put from t he t rans mis s ion pump is s pli t bet ween t he s tandard cli mate cool er and t he air bl as tcool er. Some of t he transmis s ion fluid from t he t ransmis s ion pump i s divert ed i nt o the air bl as t cooler. The flui d fl owst hrough plates i n t he cool er and the ai r flow over t he plat es removes t he heat from t he fl ui d. The fl ui d i s then di rectedback to a tee connect ion wi th the flui d pipe t o t he s tandard cl imat e cool er and is then ret urned t o t he transmis s ion.