2006 LAND ROVER FRELANDER 2 Repair Manual

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Page 945 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual ItemPart NumberDescription
A-Cool ing s yst em (t emperate cl imat e vehicles )B-Addi ti onal cool ing s ys tem components (cold cli mate vehi cl es)
1-FFBH
2-Auxil iary cool ant pump
Engine Cold
Du

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LAND ROVER FRELANDER 2 2006 Repair Manual Entrained gases i n t he cool ing s ys tem escape t hrough the t hermal control modul e degas l ine t o t he cool ant res ervoir.
The increas ing coolant temperature is felt at t he t hermos ta

Entrained gases i n t he cool ing s ys tem escape t hrough the t hermal control modul e degas l ine t o t he cool ant res ervoir.
The increas ing coolant temperature is felt at t he t hermos tat , and is regi s tered on the ins trument cl us t er coolantt emperature gage vi a t he ECM and ECT s ens or s i gnal.For addit ional informat ion, refer t o: Ins t rument Clus ter (413-01 Inst rument Cl us t er, Des cript ion and Operat ion).
Engine Normal Operating Temperature
W i th the coolant t emperature increas ing, at 83°C (181°F) t he t hermos tat reacts and commences openi ng. The by-pas svalve is progres s ively clos ed. Hot coolant ret urning from t he engi ne t o t he thermal control modul e i s now all owed to pas st hrough the t op hos e connecti on to the radiator. The fl ow of hot coolant t o t he radiat or now forces cold cool ant wi thi n t heradi at or and bot t om hos e t o fl ow t o t he thermal cont rol module.
Duri ng the thermos t at opening period t here i s an i nit ial temperat ure di fferenti al of t he coolant at bot h s ides of t het hermos tat . The thermos t at react s t o t he t emperature different ial and part iall y closes , whi le t he by-pas s val ve opensfurther. The thermos t at and by-pas s valve conti nue to oscil lat e whil e t he cool ant t emperat ure i ncreas es .
At a coolant temperat ure of 91°C (196°F) t he thermost at is full y opened and t he by-pas s valve i s ful ly clos ed. The returncool ant from t he engi ne is now ful ly circul ated t hrough t he radiat or and bot tom hose. Coolant flows t hrough the radiat orfrom the RH tank t o t he LH t ank, and i s cool ed by air pass i ng through the mat ri x. Ent rai ned gas es i n the radiat or es capet hrough the connect ed degas l ine t o t he cool ant res ervoir.
The increas ed cool ant volume created by heat expans ion caus es the coolant level to ri se through t he connecti ng res ervoirhose, and i nt o t he res ervoi r.
The t emperature of the cooli ng s ys t em i s cons t ant ly moni tored by t he ECM via the ECT s ens or s i gnal. The ECM uses t heECT s ignal to control operati on of the cooling fans , and to adjus t engine fueling. The ECM al so operates t he fans i nres ponse to input s from the aut omati c t ransmis s ion oil t emperat ure s ensor, Air Condit ioning (A/C) s ys tem cont rol s wit ch,and t he A/C pres sure s ens or. For addit ional i nformati on, refer to: El ect ronic Engine Cont rols - 2.2L Di es el (303-14Electroni c Engine Controls - 2.2L Dies el, Des cript ion and Operat ion).For addit ional informat ion, refer t o: Air Condit ioning (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
The cool ing fan s peed is als o infl uenced by vehicle road s peed. The ECM adjus t s the speed of t he cool ing fans tocompens ate for t he ram air effect , us ing t he CAN bus road speed s ignal received from the Ant i-Lock Brake Sys tem (ABS)module.
W hen t he engine i s s hut down, t he coolant t emperature and volume decreas e. The thermos t at st art s t o clos e as t hecool ant t emperat ure decreas es to 89°C (192°F), and is fully cl osed at 81°C (178°F). The coolant level wit hin t he res ervoi rdecreas es as coolant is drawn from the res ervoi r to replenis h the s ys tem.
Followi ng engi ne s hut down when the coolant pump i s s tat ionary, the ECM may cont inue t o operat e t he cool ing fans for apre-det ermined peri od to maint ai n engine cooling.

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LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Engine Cooling - TD4 2.2L Diesel - Engine Cooling
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the cooli ng s ys t em, refer t o t he rel

Publi s hed: 11-May-2011
Engine Cooling - TD4 2.2L Diesel - Engine Cooling
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the cooli ng s ys t em, refer t o t he rel evant Des cript ion and Operat ion secti on in the workshop
manual.
REFER to: Engine Cooli ng (303-03B Engi ne Cool ing - TD4 2.2L Dies el, Des cript ion and Operat ion).
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 does
not guarant ee confirmat ion of a faul t, and may als o caus e addit ional fault s i n t he v ehi cl e being t est ed and/or t he donor
vehi 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.
2.
Visual Inspection Mechanical Electrical
Coolant leaks Coolant expans ion t ank
Electric fan
Radiat or Fuse
W i ri ng harness
Loos e or corroded connect or(s )
Engi ne Coolant Temperature (ECT) s ensor
3.
If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) before
proceeding 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 Ch art, al ternat ively, check for
Di agnos ti c Trouble Codes (DTCs) and refer t o t he DTC Index.
4.
Symptom Chart Symptom Possible CauseAction
Coolant los s Hoses Hose connect ions
Radi ator
Cool ant pump
Heat er core
Gaskets
Engi ne cas t ing cracks
Engi ne block core plugs GO t o Pinpoint Test
A.Engine overheati ng
Engi ne cool ant (level/condit ion) Thermos tat
Fan motor
Fan motor fus es and/or circui ts
ECT s ens or
Engi ne cont rol module (ECM)
Fan speed module GO t o Pinpoint Test
B.Engine not reaching normal operat ing t emperat ure
Thermos tat Elect ric fan
Fan speed module GO t o Pinpoint Test
C.DTC Index
• NOTE: If the control modul e or a component i s s us pect and the vehicle remains unde r manufacturer warrant y, refer t o the
W arranty Pol icy and Procedures manual (s ect ion B1.2), or determine i f any pri or appr oval programme is in operat ion, pri or
t o the ins tall ati on of a new module/component.
• NOTE: Generic scan t ool s may not read the codes li st ed, or may read only fi ve digi t codes . Mat ch the five di git s from t he
s 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 fa ul t (t he las t t wo digi ts gi ve ext ra
informat 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 mal
places, and wi th a current cali brati on cert ifi cat e. W hen t est ing res is tance, al ways take t he res is t ance of t he DMM leads
int o account.
• NOTE: Check and recti fy bas ic faul ts before beginni ng diagnos t ic rout ines i nvol vi n g pinpoint t es t s.
• NOTE: If DTCs are recorded and, aft er performi ng the pi npoi nt tes ts , a fault is no t present , an int ermi tt ent concern may
be t he caus e. Always check for loose connect ions and corroded terminals .
DT C Description Possible Cause Action
P011600 Engine Coolant Temperat ure
Sensor 1 Circuit Mini mum temperat ure or
increas e not achi eved wi thi n Check int egrit y of cool ing s ys tem.
REFER t o: Engi ne Cool ing (303-03B

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LAND ROVER FRELANDER 2 2006 Repair Manual 1
2
1
1
DT C
Description Possible Cause Action
Range/Performance t ime limitEngine Cooli ng - TD4 2.2L Dies el,
Di agnos is and Tes t ing).
P011700 Engine Coolant Temperat ure
Sensor 1 Circuit Low

1
2
1
1
DT C
Description Possible Cause Action
Range/Performance t ime limitEngine Cooli ng - TD4 2.2L Dies el,
Di agnos is and Tes t ing).
P011700 Engine Coolant Temperat ure
Sensor 1 Circuit Low Engi ne cool ant temperat ure
s ens or circuit - short to
ground, open ci rcuit Carry out t he pinpoint t es t s as sociat ed
wi th thi s DTC us ing t he manufacturer
approved diagnost ic sys tem
P011800 Engine Coolant Temperat ure
Sensor 1 Circuit Hi gh Engi ne cool ant temperat ure
s ens or circuit - short to power Carry out t he pinpoint t es t s as sociat ed
wi th thi s DTC us ing t he manufacturer
approved diagnost ic sys tem
P048000 Fan 1 Cont rol Circui t Fan cont rol output 1 circui t -
no l oad Carry out t he pinpoint t es t s as sociat ed
wi th thi s DTC us ing t he manufacturer
approved diagnost ic sys tem
P04804B Fan 1 Cont rol Circui t Fan cont rol output 1 circui t -
over t emperat ure Carry out t he pinpoint t es t s as sociat ed
wi th thi s DTC us ing t he manufacturer
approved diagnost ic sys tem
P048100 Fan 2 Cont rol Circui t Fan PW M power s t age out put
2 no l oad Refer t o el ect ri cal circui t di agrams and
check cooli ng fan 2 cont rol circui t for open
circui t
P04814B Fan 2 Cont rol Circui t Fan PW M power s t age out put
2 exces s t emperat ure Refer t o el ect ri cal circui t di agrams and
check cooli ng fan 2 cont rol circui t for high
resi s tance
P048300 Fan Performance Fan has s tall ed Check and remove obs truct ion from
cooli ng fan. Check for sei zure of cool ing
fan
P069111 Fan 1 Cont rol Circui t Low Fan cont rol output 1 circui t -
s hort t o ground Carry out t he pinpoint t es t s as sociat ed
wi th thi s DTC us ing t he manufacturer
approved diagnost ic sys tem
P069212 Fan 1 Cont rol Circui t High Fan cont rol output 1 circui t -
s hort t o power Carry out t he pinpoint t es t s as sociat ed
wi th thi s DTC us ing t he manufacturer
approved diagnost ic sys tem
P069311 Fan 2 Cont rol Circui t Low Cooling fan control circui t -
s hort t o ground Refer t o el ect ri cal circui t di agrams and
check cooli ng fan cont rol ci rcuit for short
t o ground
P069412 Fan 2 Cont rol Circui t High Cooling fan control circui t -
s hort t o power Refer t o el ect ri cal circui t di agrams and
check cooli ng fan cont rol ci rcuit for short
t o power
Pinpoint Tests
PINPOINT TEST A : LOSS OF COOLANT T EST
CO NDIT IONS DET AILS/RESULT S/ACT IONS
A1: VISUAL INSPECT ION Vis ually ins pect for l oss of coolant .
Carry out a s ys t em press ure tes t. See component t es ts i n t his s ecti on.
Is the engine cooli ng sys t em l eaking?
Yes
Rect ify t he leak as i ndi cat ed by t he tes t res ult . Top-up and fil l t he cooling sys tem t o the correct
level wit h t he correct s pecificati on fl uid as necess ary.
REFER to: Speci fi cat ions (303-03A Engi ne Cool ing - I6 3.2L Petrol , Specificati ons) /
Cool ing Sys tem Drai ning, Fi ll ing and Bl eeding (303-03A Engine Cooli ng - I6 3.2L Pet rol, General
Procedures).
TEST the s ys tem for correct operat ion.
No Veri fy t he cust omer compl aint.
PINPOINT TEST B : THE ENGINE OVERHEATS T EST
CONDIT IONS DET AILS/RESULT S/ACT IO NS
B1: CHECK CO OLANT W ARNING: The cool ing s yst em is pres s uri zed! Ensure t he res ervoir cap i s never rel eas
ed unt il t he sys t em has cool ed.
Fail ure t o fol low thes e ins t ructi ons may res ult i n pers onal i njury.
Check t he cool ant l evel and condi ti on.
Does the s ys tem cont ai n s ufficient cool ant of t he correct s peci fi cat ion?
Yes GO t o B2 .
No Top-up and fi ll t he cool ing s ys tem to the correct l evel wi th the correct s pecifi cat i on flui d as
neces sary.
REFER t o: Speci ficat ions (303-03A Engi ne Cool ing - I6 3.2L Pet rol , Specificati ons ) /
Cool ing Sys tem Drai ni ng, Fi lli ng and Bleeding (303-03A Engine Cooli ng - I6 3.2L Pet rol, General
Procedures ).
Check for coolant los s . GO t o Pi npoint Tes t A.B2: CHECK CO OLANT EXPANSION T ANK PRESSURE CAP
Check t he cool ant expansi on tank press ure cap for damage/correct operati on. REFER t o t he cool ant
expans ion t ank pres sure cap pres sure t est i n t his s ect ion.

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LAND ROVER FRELANDER 2 2006 Repair Manual 1
1
Is t he coolant expans ion t ank pres sure cap operati ng correctl y?
Yes GO t o B3 .
No INSTALL a new coolant expans ion t ank pres s ure cap. TEST t he s yst em for correct opera ti on.
B3: CHE

1
1
Is t he coolant expans ion t ank pres sure cap operati ng correctl y?
Yes GO t o B3 .
No INSTALL a new coolant expans ion t ank pres s ure cap. TEST t he s yst em for correct opera ti on.
B3: CHECK T HERMOST AT Check t he t hermos tat for correct operat ion. REFER to the t hermos t at component t es t i n t his
sect ion.
Is t he t hermos tat operat ing correct ly?
Yes
Check for correct operat ion of cooli ng fans , ci rcuit s , sens ors , modules , et c.
REFER t o: Electroni c Engine Controls (303-14B Electronic Engine Controls - TD4 2.2L Dies el,
Diagnos i s and Test ing).
No
INSTALL a new t hermos t at .
REFER t o: Thermos tat (303-03B Engine Cooli ng - TD4 2.2L Di esel , Removal and Ins t allat ion).
TEST the s ys tem for correct operat ion.
PINPOINT TEST C : THE ENG INE DOES NOT REACH NORMAL OPERATING TEMPERATURE T EST
CONDIT IONS DET AILS/RESULT S/ACT IONS
C1: CHECK T HERMOST AT Check t he thermost at for correct operat ion. REFER to t he t hermos tat component t est i n t his
secti on.
Is t he t hermos tat operati ng correct ly?
Yes Check for correct operat ion of cooling fans , ci rcuit s, s ens ors , modul es, et c.
REFER t o: Electroni c Engi ne Control s (303-14B Electroni c Engi ne Controls - TD4 2.2L Dies el,
Diagnos is and Tes t ing).
No INSTALL a new t hermos tat .
REFER t o: Thermos tat (303-03B Engi ne Cooling - TD4 2.2L Di es el, Removal and Ins t al lat ion).
TEST t he s yst em for correct operati on.
Component Tests
Cooling System Pressure Test W ARNING: Never, under any ci rcums tances, remove the coolant expans ion tank pres s ure
cap whi le t he engine i s
operati ng. To avoid havi ng s caldi ng hot water or s team bl ow out of the cooli ng s ys t e m, use ext reme care when removi ng
t he coolant expans ion tank pres s ure cap from a hot cool ing s ys tem. W ai t unti l the en gine has cooled, then wrap a t hick
cloth around t he coolant expans ion tank pres s ure cap and t urn it s lowl y unt il t he pr es s ure begins t o releas e, s t ep back
whil e t he pres sure i s rel eas ed from the s ys tem. W hen certai n all t he pres s ure has be en rel eas ed (s ti ll wit h a cl oth) t urn
and remove t he coolant expans ion t ank pres sure cap. Fail ure t o follow thes e i ns t ruct i ons may res ult i n damage t o t he
cool ing s ys tem, engine and/or cause pers onal injury.
1. Swit ch the engine off.
1.
2. Open the hood and i nst all prot ect ive fender covers .
2.
3. Careful ly remove the coolant expans ion t ank pres s ure cap from the coolant expans ion t ank to rel ieve pres s ure i n
t he cool ing s ys tem. Add coolant t o cool ant expans i on tank as necess ary.
3.
4. Ins t al l the press ure tes t er equipment t o t he cool ing s yst em foll owing manufact urers i nst ruct ions. Rei ns t all t he
coolant expans ion t ank pres sure cap (if pres s ure t est equipment i s not ins tal led t o t he cool ant expans i on tank).
4.
5. Pres surize t he cool ing s ys tem to the coolant expans ion t ank pres s ure cap lower l imi t .
5.
6. Observe the gauge readi ng for approximat ely t wo minutes . Pres s ure s houl d not drop du ring t his t ime.
If sys tem holds pres s ure, cont inue from s tep 7. If the pres s ure drops, check the complet e cool ing s ys tem for l eaks . Als o refer to en
gi ne s ys t em checks i f a
leak cannot be locat ed in the cooli ng s ys t em. Correct any leaks found and recheck t h e s ys t em.6.
7. Release the s ys tem pres s ure and remove the press ure tes t equipment. Check the coolan t level. Replenis h as
necess ary wit h t he correct cool ant s olut ion.
REFER t o: Specificati ons (303-03A Engine Cooli ng - I6 3.2L Pet rol, Specifi cat ions ).
7.
8. Check t he radi at or overfl ow hos e for any obs truct ions which may block the flow of co olant eit her to or from t he
coolant expans ion t ank.
8.
9. Conduct the coolant expans ion t ank pres s ure cap pres s ure t es t in t his secti on.
9.
Coolant Expansion Tank Pressure Cap Pressure Test W ARNING: Never, under any ci rcums tances, remove the coolant expans ion tank pres s ure
cap whi le t he engine i s
operati ng. To avoid havi ng s caldi ng hot water or s team bl ow out of the cooli ng s ys t e m, use ext reme care when removi ng
t he coolant expans ion tank pres s ure cap from a hot cool ing s ys tem. W ai t unti l the en gine has cooled, then wrap a t hick
cloth around t he coolant expans ion tank pres s ure cap and t urn it s lowl y unt il t he pr es s ure begins t o releas e, s t ep back
whil e t he pres sure i s rel eas ed from the s ys tem. W hen certai n all t he pres s ure has be en rel eas ed (s ti ll wit h a cl oth) t urn
and remove t he coolant expans ion t ank pres sure cap. Fail ure t o follow thes e i ns t ruct i ons may res ult i n damage t o t he
cool ing s ys tem, engine and/or cause pers onal injury.

Page 950 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 1. Remove the expansi on tank press ure cap from t he cool ant expans i on tank.1.
2.
Us e water t o clean cap in area of rubber s eal and vacuum rel ief valve. Fol lowing man ufact urers ins tru

1. Remove the expansi on tank press ure cap from t he cool ant expans i on tank.1.
2.
Us e water t o clean cap in area of rubber s eal and vacuum rel ief valve. Fol lowing man ufact urers ins truct ions ,
i nst all t he cool ant expans i on tank pres s ure cap t o t he pres s ure t es ter.
2.
• NOTE: If the press ure tes ter i s pres s uris ed t oo quickly, an erroneous pres s ure rea di ng may resul t.
3. Slowly pres suris e t he s ys t em unt il the pres sure gauge reading s t ops i ncreasi ng, and not e highest press ure
readi ng obtained.
3.
4. Release pres sure and repeat Step 3 at leas t twi ce to make s ure t he pres s ure t es t rea ding i s repeatable and
wi thi n s peci ficat ion.
4.
5. If t he pres s ure t es t gauge readi ngs are not wi thin s pecificati on, i nst all a new cool ant expans ion tank pres s ure
cap.
5.
Thermostat Test
Remove the thermos t at
REFER to: Thermos t at (303-03B Engine Cooli ng - TD4 2.2L Dies el , Removal and Inst all at ion).
Ins pect for vis ible damage, note it s openi ng t emperature and immers e i t in wat er. He at t he water unti l thi s temperat ure is
reached. The t hermos tat s hould begin to open. If i t does not begin to open, ins t al l a new t hermos tat .
REFER to: Thermos t at (303-03B Engine Cooli ng - TD4 2.2L Dies el , Removal and Inst all at ion).
If thermos t at begi ns to open, cont inue t o heat the wat er unt il t he t hermos tat fully opens , 5.8 mm (0.2 in) or more off t he
s eat . If it does not full y open, i nst all a new thermos t at.
REFER to: Thermos t at (303-03B Engine Cooli ng - TD4 2.2L Dies el , Removal and Inst all at ion).
Radiator Leak Test - Removed from the Vehicle CAUTION: Do not l eak tes t an alumi nium radiat or i n t he s ame wat er t hat is us ed t o le
ak t es t copper/bras s radiat ors .
Flux and caust ic cl eaners may be pres ent in the t est wat er which wi ll corrode al umin i um. If a separat e t ank is not
avai lable, drai n and rins e the tes t tank before t est ing an alumini um radi ator.
Clean t he radi at or before leak t es t ing t o prevent cont aminat ion of t he tes t t ank. Le ak tes t t he radiat or in clean wat er wit h
138 kPa (20 ps i ) air pres s ure.

Page 951 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Engine Cooling - TD4 2.2L Diesel - Cooling System Draining, Filling and
Bleeding
General Procedures
Pos it ion t he vehi cl e on a lift .1.
Set the heat er controls t o maxi

Page 952 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual T orque:
23 Nm 9.
Tight en the radiat or drain t ap.
10.
Inst all t he drain plug.
11.
Connect t he batt ery ground cable.
Refer t o: Specificati ons (414-00 Bat tery and Charging Sys tem -
Gener

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