LAND ROVER FRELANDER 2 2006 Repair Manual

12-Cooli ng fan control modul e
13-Ups tream t emperat ure s ensor (DPF vehi cl es only)
14-Heated oxygen s ens or
OVERVIEW
The TD4 dies el engi ne has an Electroni c Dies el Cont rol (EDC) engine management s yst em. The s ys t em i s cont rol led by anECM whi ch is able to monit or, adapt and preci sel y cont rol t he fuel inject ion. The ECM us es mult iple s ens or inputs andprecis ion control of act uat ors t o achieve opti mum performance during all driving condit ions.
The ECM controls fuel deli very t o all 4 cyli nders via a common rai l inject ion s yst em. The common rail s ys t em us es a fuelrai l to accumulate highly press uri zed fuel and feed t he 4, electroni cal ly controlled injectors . The fuel rail i s located i n clos eproximit y to the i njectors, whi ch ass is t s in maint aining full s yst em press ure at each i njector at all t imes .
The ECM us es t he drive by wire pri nci pl e for accelerat ion control. Accelerator pedal demand i s communicat ed t o t he ECM by2 pot ent iomet ers l ocat ed in a thrott le pos it ion sens or. The ECM us es t he 2 s ignals to det ermi ne the pos it ion, rat e ofmovement and di recti on of movement of t he pedal . The ECM t hen uses t his dat a, al ong wit h ot her engine i nformati on fromother s ens ors, t o achieve the opt imum engine respons e.
The ECM proces ses informati on from t he followi ng input s ources :
camshaft pos i ti on (CMP)CKPManifol d air t emperat ure and press ureEngi ne cool ant temperat ureOil t emperat ureInt ake air flow and t emperat ureFuel t emperat ure
The ECM out put s cont rol li ng si gnal s t o t he foll owing s ens ors and actuators :
Fuel i njectors (4 off)Cooling fan control modul eElectric t hrot tl e valveElectroni c vane cont roll ed t urbochargerPort deact ivat ionFuel pres s ure cont rol val veFuel volume cont rol val veEGRGlow plugs (4 off).
CONTROL DIAGRAM SHEET 1 OF 2
• NOTE: A = Hardwi red

ItemPart NumberDescription
1-ECT s ens or2-1st gear posi ti on s wit ch
3-CKP s ens or
4-Start inhibit swi tch5-MAP s ensor
6-Down s tream exhaus t t emperat ure s ensor
7-Clut ch swi tch8-Stoplamp s wit ch
9-cent ral juncti on box (CJB)
10-APP s ens or11-Start cont rol module

12-Start cont rol s wit ch
13-Ambient air t emperat ure s ensor
14-Fuel t emperature s ensor15-IAT sens or
16-MAF s ensor
17-HO2S18-Different ial pres s ure s ens or
19-Upst ream exhaus t temperature s ens or
20-CMP s ensor21-Speed control inhibit swi tch
22-ECM
23-Oil l evel and t emperature s ens or24-EOP s ensor
CONTROL DIAGRAM SHEET 2 OF 2
• NOTE: A = Hardwi red; D = Hi gh s peed controller area net work (CAN)

ItemPart NumberDescription
1-Batt ery2-CJB
3-Starter mot or
4-Generator5-Electric t hrot tl e
6-ECM
7-Pres s ure control valve8-EGR valve
9-Glow plug
10-Inject or11-Vari abl e nozzl e t urbocharger (VNT) controll er

12-Fuel pump (i ncorporat ing vol ume cont rol valve)
13-Fan cont rol module
14-anti -l ock brake sys tem (ABS) modul e15-Ins t rument clus ter
16-Fuel t rans fer pump

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

SymptomPossible CauseAction
Di fficul t t o s tart aft er hots oak (vehicle st andi ng,engine off, aft er engi ne hasreached operati ngt emperature)
Injector leakElectronic engine controlsFuel pumpExhaus t gas recircul ati on val ves tuck open
Check fuel and engine control sys tems for DTCs andrefer t o t he rel evant DTC Index
Engine cranks t oo fas t/s lowBatt eryCompres s ions high/lowSt arti ng s yst em
Check batt ery is fully charged and in s ervi ceablecondit ion. Check engine compres s ions . Checkint egrit y of s tart ing sys tem
Driveability
Rough idl eLow/contami nat ed fuelFuel s ys temAir i ntake s yst emElectronic engine controls
Check fuel l evel /condi ti on. Check for DTCs and referto relevant DTC Index. Check i ntegri ty of fuel, airint ake, and engi ne s yst ems
Engine i dl e s peed high, low,errati cAir i ntake s yst emExces s ive blow-byExhaus t gas recircul ati on val veTurbo charger bearing/sealElectronic engine controls
Check for DTCs and refer t o t he rel evant DTC Index.Check i nt egri ty of ai r intake, Turbo charger, andengi ne s ys t ems
Lack of power underaccel erati onContami nat ed fuelAir i ntake s yst emBlocked exhaus t/cat alyt icconverterTurbo changer faul tFuel s ys temElectronic engine controlsLow engine compres s ions
Check for fuel cont aminati on. Check for DTCs andrefer t o relevant DTC Index. Check int egrit y of airint ake, exhaus t, Turbo charger, and engi ne s ys t ems
Engine s t ops /st all sContami nat ed fuelFuel s ys temAir i ntake s yst emElectronic engine controls
Check for fuel cont aminati on. Check for DTCs andrefer t o t he rel evant DTC Index. Check int egrit y offuel, ai r intake, and engi ne s ys t ems
Diesel Particulate Filter (DPF) Warning Messages
'DPF Ful l Vi s it Dealer'mes s age dis played. Torquederat e, regenerati on lockedout (DTC P200200 als ol ogged)
Part iculat e fi lt er soot mas squant it y above maximumt hres hol dCAUTION: All i nt ake air s yst em leaks MUST berecti fi ed before carrying out dynamic regenerat ion.
Check for and recti fy any related DTCs . Check forcorrect ins tal lati on and int egrit y of i nt ake airsys t em, recti fy as requi red. Carry out dynami cregenerati on usi ng t he manufacturer approveddiagnos t ic s yst em
'Reduced Engi nePerformance' mes s agedis played. No effect t odri veabi lit y. Regenerat ionreduced t o lower level (2)(DTC P054516 al so logged)
Pre-cat alyt ic convertert emperature s ens or circui tvolt age bel ow t hres hol d
Refer to elect rical circui t diagrams and checkpre-cat al yti c convert er temperat ure s ens or ci rcuitfor s hort t o ground or open ci rcuit
'Reduced Engi nePerformance' mes s agedis played. No effect t odri veabi lit y (DTC P222700als o l ogged)
At mospheri c pres s ure s ens ordefecti veClear DTC, run engine for 2 mi nut es, s et igni ti onst atus to O FF (power down), run engine for further2 mi nut es , set i gni ti on s tat us to OFF (power down),set i gni ti on s tat us to ON and read DTCs. If DTC s t illpres ent refer t o new module/component ins tal lati onnot e at t he t op of the DTC Index
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P244A16 al so logged)
Part iculat e fi lt er different ialpres s ure bel ow li mitClear DTC, cycle i gni ti on s tat us from ON t o OFF(power down) a mi ni mum of s i x ti mes , set i gni ti onst atus to O N, if DTC remains i ns t all a newdifferent ial pres sure s ens or
'DPF Ful l Vi s it Dealer'mes s age dis played. Torquederat e, regenerati on lockedout (DTC P244B68 als ol ogged)
Part iculat e fi lt er different ialpres s ure hi gh - engi ne prot ect ionacti veCAUTION: All i nt ake air s yst em leaks MUST berecti fi ed before carrying out dynamic regenerat ion.
Check for correct ins tall ati on and int egrit y ofdifferent ial pres sure s ens or hoses , rect ify asrequired. Check for correct i ns t allat ion and i ntegri tyof intake ai r sys tem, rect ify as requi red. Carry outdynami c regenerati on us ing t he manufacturerapproved di agnos ti c s ys t em'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P244C00 al so logged)
Downs tream catalyt ic convertert emperature s ens or volt agebelow lower li mitSensor failure
Refer to the el ect ri cal circui t diagrams and checkdowns t ream cat al yti c convert er temperat ure sens orci rcuit for open ci rcuit . Ins tal l new temperat uresens or as required

SymptomPossible CauseAction
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P244D00 al so logged)
Downs tream catalyt ic convertert emperature s ens or volt ageabove upper li mi tSensor failure
Refer to the el ect ri cal circui t diagrams and checkdowns t ream cat al yti c convert er temperat ure sens orci rcuit for short to power. Ins tal l new temperat uresens or as required
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Regenerat ionl ocked out (DTC P245300als o l ogged)
Part iculat e fi lt er st ati onarycorrect ed different ial pres s urebelow mini mum
Different ial pres s ure s ensor hos es cross ed over
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P245500 al so logged)
Part iculat e fi lt er different ialpres s ure s ens or volt age aboveupper l imitSensor failure
Refer to the el ect ri cal circui t diagrams and checkdifferent ial pres sure s ens or s uppl y circuit for s hortto power. Ins tal l a new s ensor as requi red
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P245600 al so logged)
Leaki ng or blocked di fferenti alpres s ure s ens or hos esDi fferenti al pres s ure sens orcircui t short, open circui tSensor failure
Check for spl it /degraded, bl ocked different ialpres sure s ens or hoses , refer to el ect ri cal circui tdiagrams and check different ial pres sure s ens orci rcuit s for s hort , open ci rcuit . Ins t al l a new s ensoras required
'O il Service requi red'mes s age dis played (DTCP250F00 al so dis played)
Engine oil contami nat edCheck engine oi l condit ion, renew as requi red
'O il Service requi red'mes s age dis played (DTCP252F00 al so dis played)
Engine oil contami nat edCheck engine oi l condit ion, renew as requi red
'O il Service requi red'mes s age dis played (DTCP253F00 al so dis played)
Engine oil contami nat edCheck engine oi l condit ion, renew as requi red
'Reduced Engi nePerformance' mes s agedis played. No effect t odri veabi lit y, regenerati onreduced t o lower level (2)(DTC P208000 al so logged)
Exhaus t gas t emperature s ens or1 pl aus i bi li ty faultRefer to elect rical circui t diagrams and checkups t ream cat alyti c convert er temperat ure sens orci rcuit for short ci rcuit , open ci rcuit
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Regenerat ionl ocked out (DTC P244A00als o l ogged)
Signal not pl aus i bl e. Different ialpres s ure s ens or hos e l inedefecti ve
Check for correct ins tall ati on and int egrit y ofdifferent ial pres sure s ens or hoses , rect ify asrequired
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P244B22 al so logged)
Signal ampli tude > maximum.Part iculat e fi lt er uncorrect eddifferent ial pres s ure value abovel imi t in after run
CAUTION: All i nt ake air s yst em leaks MUST berecti fi ed before carrying out dynamic regenerat ion.
Check for correct ins tall ati on and int egrit y ofdifferent ial pres sure s ens or hoses , rect ify asrequired. Check for correct i ns t allat ion and i ntegri tyof intake ai r sys tem, rect ify as requi red. Carry outdynami c regenerati on us ing t he manufacturerapproved di agnos ti c s ys t em'DPF Ful l' mes sagedis played, wit h s ee handbook icon (DTC P245200 al sol ogged)
Poor drivi ng st yle, unabl e t ofaci lit ate regenerati onRefer dri ver t o hand book
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P245400 al so logged)
Part iculat e fi lt er different ialpres s ure s ens or volt age belowl ower l imi tSensor failure
Refer to the el ect ri cal circui t diagrams and checkdifferent ial pres sure s ens or s uppl y circuit for s hort,open ci rcuit . Ins tal l a new s ensor as requi red
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Torque derate,regenerat ion l ocked out(DTC P208400 al so logged)
Exhaus t gas t emperature s ens or2 pl aus i bi li ty faultRefer to elect rical circui t diagrams and checkdowns t ream cat al yti c convert er temperat ure sens orci rcuit for short ci rcuit , open ci rcuit
'Reduced Engi nePerformance' mes s agedis played. No effect t odri veabi lit y, regenerati onreduced t o lower level (2)(DTC P054617 al so logged)
Pre-cat alyt ic convertert emperature s ens or circui tvolt age above t hres hol d
Refer to elect rical circui t diagrams and checkpre-cat al yti c convert er temperat ure s ens or ci rcuitfor s hort t o power
'Reduced Engi nePerformance' or 'EngineSyst em Fault ' mes sagedis played. Regenerat ionl ocked out (DTC P244A00
Signal not pl aus i bl e. Different ialpres s ure s ens or hos e l inedefecti ve
Check for correct ins tall ati on and int egrit y ofdifferent ial pres sure s ens or hoses , rect ify asrequired

SymptomPossible CauseAction
als o l ogged)
'Reduced Engi nePerformance' mes s agedis played. No effect t odri veabi lit y, regenerati onreduced t o lower level (2)(DTC P244B22 al so logged)
Signal ampli tude > maximum.Part iculat e fi lt er uncorrect eddifferent ial pres s ure value abovel imi t in after run
CAUTION: All i nt ake air s yst em leaks MUST berecti fi ed before carrying out dynamic regenerat ion.
Check for correct ins tall ati on and int egrit y ofdifferent ial pres sure s ens or hoses , rect ify asrequired. Check for correct i ns t allat ion and i ntegri tyof intake ai r sys tem, rect ify as requi red. Carry outdynami c regenerati on us ing t he manufacturerapproved di agnos ti c s ys t em
'DPF Ful l Vi s it Dealer'mes s age dis played. Torquederat e, regenerati on lockedout (DTC P244A97 als ol ogged)
Part iculat e fi lt er different ialpres s ure s ens or bl ockedCheck for bl ocked/rest ri cted Di fferenti al Press uresens or and hos es
DTC Index
• NOTE: If the control modul e or a component i s s us pect and the vehicle remains under manufacturer warrant y, refer t o theW arranty Pol icy and Procedures manual, or determine i f any prior approval programme is i n operat ion, prior t o t heins t al lat ion of a new modul e/component .
• NOTE: Generic scan t ool s may not read the codes li st ed, or may read only fi ve digit codes . Mat ch the five di git s from t hes can tool to the firs t fi ve di git s of the seven digi t code l is ted to ident ify t he faul t (t he las t t wo digi ts gi ve addi ti onalinformat ion read by the manufact urer approved diagnos t ic s ys tem).
• NOTE: W hen performing volt age or res is t ance t est s , always use a digi tal mult imeter (DMM) accurat e t o t hree deci malplaces, and wi th an up-t o-date cal ibrat ion cert ificate. W hen tes ti ng res is t ance al ways take t he res is t ance of t he DMMleads i nt o account .
• NOTE: Check and recti fy bas ic faul ts before beginni ng diagnos t ic rout ines i nvol vi ng pinpoint t es t s.
• NOTE: Ins pect connect ors for s igns of water ingres s , and pins for damage and/or corros ion.
• NOTE: If DTCs are recorded and, aft er performi ng the pi npoi nt tes ts , a fault is not present , an int ermi tt ent concern maybe t he caus e. Always check for loose connect ions and corroded terminals .
For a compl ete lis t of all di agnos ti c troubl e codes that coul d be l ogged on t his vehicle, pleas e refer to s ect ion 100-00.REFER to: Di agnos ti c Trouble Code (DTC) Index - TD4 2.2L Dies el, DTC: Engi ne Control Module (ECM) (100-00 GeneralInformat ion, Des cript ion and Operat ion).

Publi s hed: 11-May-2011
Electronic Engine Controls - TD4 2.2L Diesel - Camshaft Position (CMP)
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.
Di sconnect t he bat t ery ground cable.
Refer t o: Specificati ons (414-00 Bat tery and Charging Sys tem -General Informat ion, Specificati ons).
1.
2. W ARNING: Make sure t o s upport the vehicle wit h axles tands .
Rais e and s upport t he vehi cl e.
2.
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).
3.
4.