AUX LAND ROVER FRELANDER 2 2006 Owner's Guide

Publi shed: 06-Jul-2011
Climate Control System - General Information - Climate Control System
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the cl imat e cont rol s yst em, refer to the relevant Des cri pti on and Operati on s ect ion i n t heworks hop manual . REFER to:
Air Dis t ri but ion and Fi lt ering (412-01 Cl imat e Control, Des cript ion and Operat ion),Heat ing and Vent il at ion (412-01 Cl imat e Control, Des cript ion and Operat ion),Air Condi ti oning (412-01 Cli mate Cont rol , Des cri pti on and Operati on),Cont rol Component s (412-01 Cli mate Cont rol , Des cri pti on and Operati on),Elect ric Boost er Heater (412-02B Auxi liary Cli mate Cont rol , Descri pti on and Operat ion),Fuel Fired Boos t er Heat er (412-02B Auxil iary Cli mate Cont rol, Des cri pt ion 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 damage and s ys t em i ntegri ty.2.
Visual InspectionMechanicalElectrical
Coolant levelRefrigerant l eaks (UV l amp)Drive beltCompres s orCooli ng fanControl flap(s)Duct(s )Regis ter(s )Cabin ai r fi lt erHos e(s )Coolant pumpFuel Fi red Boos ter HeaterFuel Fi red Boos ter Heater fuel pumpFuel Fi red Boos ter Heater fuel pipes
Fus e(s)Circui tBlower mot orElectrical connect or(s)Compres s orCool ing fanAct uatorsCli mate cont rol ass embly
3. Lis ten for any unus ual noi ses during cli mate cont rol s ys t em operat ion.3.
4. Ins pect t he refri gerant s ys t em wi th an ult raviolet (UV) lamp for t races of UV s ens i ti ve leak t race dye.4.
5. 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 ep5.
6. If t he caus e is not vis ually evi dent , check Cli mate Cont rol Module, Engi ne Control Module (ECM), Fuel FiredBoos ter Heater and Central Juncti on Box (CJB) for Di agnos ti c Trouble Codes (DTCs ) and refer to the DTC Index.6.
Climate Control System
• NOTE: If a cont rol module or component i s s uspect and the vehicl e remai ns under manufacturer warrant y, refer t o t heW arranty Pol icy and Procedures manual (s ect ion B1.2), or determine i f any pri or approval program is i n operat ion, beforet he replacement of a component.
• NOTE: Generic scan t ool s may not read the codes li st ed, or may read only 5-digi t codes . Match t he 5 digi ts from t he s cant ool t o t he fi rs t 5 di gi ts of the 7-digit code li s ted t o i dent ify the fault (the last 2 digi ts gi ve ext ra informati on read by themanufacturer-approved di agnos ti c s ys t em).
• 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 .
Cli mate Cont rol Syst em
For a compl ete lis t of all Di agnos ti c Trouble Codes (DTCs) t hat could be logged on this vehicle, pleas e refer to Sect ion100-00.
REFER to: Di agnos ti c Trouble Code (DTC) Index - DTC: Heati ng Vent il ati on and Air Condit ioning Control Modul e (HVAC)(100-00 General Informati on, Des cri pti on and Operati on).

Air Dis t ri but ion and Fi lt ering (Des cript ion and Operat ion),Air Condi ti oning (Descri pti on and Operat ion),Cont rol Component s (Descri pti on and Operat ion).
Some vehicles may al s o be fit ted wi th an auxi li ary heater. For addit ional i nformati on, refer t o: (412-02B Auxil iary Cl imat eControl )
Elect ric Boost er Heater (Des cri pti on and Operati on),Fuel Fired Boos t er Heat er (Des cript ion and O perati on).
AUTOMATIC TEMPERATURE CONTROL MODULE
Air di st ri but ion and temperat ure is control led by the Aut omati c Temperature Cont rol (ATC) modul e, which is integral wi tht he cont rol panel . In res pons e t o commands from t he control panel, t he ATC module controls operat ion of ei ther 3 (si nglezone) or 5 (dual zone) s tepper motors mount ed on t he heater as sembl y cas i ng.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
HEATER ASSEMBLY
ItemPart NumberDescription
1-Blower mot or cont rol module2-Blower mot or
3-Air Condit ioning (A/C) evaporat or
4-Heater core5-Electric boos ter heater
The heat er ass embl y cont rols the t emperat ure of t he air s uppl ied t o t he air di st ri buti on duct s, as di rected by the ATCmodule. The heat er ass embl y is mount ed on t he vehi cl e cent er li ne and compris es t he fol lowing components :

Blower mot orHeater coreCabin ai r fil ter.For addit ional informat ion, refer t o: Air Di st ri buti on and Fi lt eri ng (412-01 Climat e Cont rol, Des cript ion andOperat ion).A/C evaporat or.For addit ional informat ion, refer t o: Air Condit ioning (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Air i ntake flap and s tepper motor.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Air di st ri but ion fl aps and s t epper mot ors .For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Temperature blend flaps and s t epper mot ors .For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Electric boos ter heater (if fi tt ed).For addit ional informat ion, refer t o: Electric Boos ter Heater (412-02 Auxi li ary Cl imat e Control, Des cript ion andOperat ion).
Blower Motor
The blower mot or compris es an open hub, centrifugal fan powered by an elect ric motor. Operati on of the bl ower motor iscont rol led by t he ATC module in conjuncti on wit h t he blower mot or control modul e. The ATC module provi des a Puls e W i dthModulated (PW M) si gnal t o t he blower motor control modul e based on the requi red bl ower speed. The bl ower motor cont rolmodule i nterprets the PW M s ignal as a blower mot or speed and controls t he volt age to t he blower mot or accordingl y.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
Heater Core
The heat er core provi des t he heat s ource to warm the ai r bei ng s uppl ied i nto t he cabin. The heat er core is an alumi num, 2pass , fin and t ube heat exchanger ins t al led acros s t he widt h of t he heat er ass embly. Two al uminum tubes att ached t o t heheat er core extend t hrough t he engi ne bulkhead and connect t o t he engine cool ing s ystem. W hen the engine is runni ng,engi ne cool ant is const antl y ci rculat ed through the heater core by the coolant pump. For addit ional informati on, refer t o:
Engi ne Cool ing (303-03A Engine Cooli ng - I6 3.2L Petrol, Des cript ion and Operat ion),Engi ne Cool ing (303-03B Engine Cooli ng - TD4 2.2L Di esel , Descri pti on and Operat ion).
VENTILATION OUTLETS
The vent il ati on out let s all ow t he free flow of ai r through t he cabi n. The out let s are ins tall ed in the LH and RH rear quart erpanel s, behind the t ail lamps .
Each vent ilat ion out let compri ses a gril le covered by a s oft rubber fl ap, and i s effect ively a non-ret urn val ve. The flapsopen and cl ose aut omat ical ly depending on t he different ial between cabin and out si de air pres s ures .
PRINCIPLES OF OPERATION
Operat ion of t he heat ing and venti lat ion s ys tem is controlled by the ATC modul e.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).

Rear Window Heater
The rear window hea ter comprise s a single heat er e leme nt bonded to the inner surf ace of t he glass . The syste m is swi tche don by pre ssing the mome nta ry s witch locate d on the control panel. W he n se lected, the ATC module tra nsmits a he atingreque st on the high spee d CAN bus to the CJB. On recei pt of the me ssa ge, the CJB energiz es t he rear window hea ter relayl ocat ed i n the Auxilia ry Junct ion Box (AJB) by providing a ground pa th for the re lay coil. The energiz ed relay provide s a bat teryf eed to t he heat er e leme nt. Afte r a period of 12 minute s the ATC module re moves the heat ing request . The CJB then powe rsdown the rea r wi ndow he ate r by removing the ground pa th f or t he relay coil .
The ATC module will only reques t re ar window heate r opera tion if the e ngine is running. An engine stat us s ignal is provide d tot he ATC module by t he ECM over the high speed CAN bus.
Exterior Mirror Heaters
O peration of the ext erior mirror heat ers is fully a utomat ic a nd re qui res no input from the driver. The exterior mirror hea tersa re a ctive when the ambient air tempera ture is below 5°C (41°F) and e ngine coolant te mpe rature i s be low 65° C (149° F).Ambi ent air a nd engine coola nt t empera ture val ues are provided by the ECM on the high speed CAN bus. O n re ceipt of the set emperat ure values, the CJB det ermines if e xterior mirror he ating is require d.
The CJB requests exterior mirror hea ting by transmit ting a high spe ed CAN bus mes sage to bot h the drivers and pa sse ngerdoor module s. The door modules provide fee d and ground paths to the respecti ve e xterior mirror he ating el eme nts . W hena mbi ent and engine cool ant tempera ture ris es a bove the va lues sta ted earl ier, the CJB transmi ts a high speed CAN busmess age to the door module s ca nce lling the hea ting reques t.
Seat Heaters
O peration of the sea t he aters is controll ed by the ATC module on re ceipt of a heati ng reque st f rom either of the se at heat ermomenta ry s witches loca ted on the cont rol pane l. The s witches are mounte d in the LH and RH rota ry controllers. A singlepress of a se at heat er switch wi ll implement low level heati ng a nd illumina te a tell-tale LED. A second pre ss of the switch willi mple me nt high l eve l hea ting and ill uminate 2 te ll-t ale LED's. A third press of t he s witch will turn t he s eat hea ter off.
Seat hea ting request s are transmitte d from the ATC module to the seat hea ter control modules on the LIN bus . Two se atheat er control modul es a re f itted, one under each front seat . The se at heat er control modules provide an e lect rical supply tot he s eat hea ter e lement s and a tempera ture sensor loca ted in t he s eat cus hion.
The s eat hea ter cont rol module provides a 5 V reference fee d to the sea t he ate r te mpe rature s ensor. The s eat hea tert emperat ure sensor is an NTC thermistor. By monitoring the ret urne d voltage, t he control module can calculate thet emperat ure of t he s eat. If t he t empera ture rise s above the target tempera ture , the control module wi ll dis abl e operat ion oft he heat er e leme nts .

Publi shed: 26-Jul-2011
Auxiliary Heating - Fuel Fired Booster Heater
Diagnosi s and Tes ti ng
Overview
For informati on on t he des cri pti on and operati on of the s ys tem, refer t o s ect ion 412-02 -REFER to:
Fuel Fired Boos t er Heat er (412-02B Auxil iary Cli mate Cont rol, Des cri pt ion and Operati on),Fuel Fired Boos t er Heat er (412-02B, Des cript ion and Operat ion),Fuel Fired Boos t er Heat er (412-02B Auxil iary Cli mate Cont rol, Removal and Ins t al lat ion),Fuel Fired Boos t er Heat er Fuel Pump (412-02B Auxili ary Cl imat e Control, Removal and Ins tall ati on),Fuel Fired Boos t er Heat er Cool ant Pump (412-02B Auxil iary Cli mate Cont rol, Removal and Ins t al lat ion),Fuel Fired Boos t er Heat er Glow Pl ug And Burner As sembl y (412-02B Auxi liary Cli mate Cont rol , Removal andIns tal lat ion).Auxi li ary Heat ing i n the works hop manual .
Inspection and Verification
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for obvious mechani cal or electrical fault s .2.
Visual inspectionMechanicalElectrical
Fuel fired heater as sembl y- Combus ti on air fan- Coolant inl et /out let- Heat exchanger- Temperat ure s ens or- Exhaus t- Fuel inlet- Ai r inlet- EvaporatorAuxili ary fuel pump and li nesAuxili ary coolant pump
Fus esHarness esEl ect ri cal connector(s )Cont roll er area network (CAN) ci rcuit sCont rol module(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 ep3.
4. Us e the approved di agnos ti c s ys t em or a s can t ool t o ret rieve any diagnos t ic t rouble codes (DTCs ) before movingont o t he sympt om chart or DTC i ndex.4.
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.
• 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 (s ect ion B1.2), or determine i f any pri or approval programme is in operat ion, pri ort 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 5-digi t codes . Match t he 5 digi ts from t he s cant ool t o t he fi rs t 5 di gi ts of the 7-digit code li s ted t o i dent ify the fault (the last 2 digi ts gi ve ext ra informati on read by themanufacturer-approved di agnos ti c s ys t em).
• 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 .
The t abl e below l is t s all Diagnos ti c Trouble Codes (DTCs ) t hat could be logged in the Fuel Fi red Boos ter Heater Module, foraddi ti onal Di agnos is and Tes ti ng informat ion refer t o t he relevant Diagnosi s and Test ing Secti on
DTC index
For a compl ete lis t of all Di agnos ti c Trouble Codes (DTCs) t hat could be logged on this vehicle, pleas e refer to Sect ion100-00. REFER t o: Diagnost ic Troubl e Code (DTC) Index - DTC: Auxi li ary Heater Control Modul e (AHCM) (100-00 GeneralInformat ion, Des cript ion and Operat ion).

Publi s hed: 11-May-2011
Auxiliary Climate Control -
Torque SpecificationsDescriptionNmlb-ft
Electric boos ter heater Torx screws21
Fuel fired boost er heat er bol ts107Feul fired boost er heat er fuel pump bolt s107

Publi s hed: 11-May-2011
Auxiliary Climate Control - Electric Booster Heater
Des cript ion and Operat ion
COMPONENT LOCATION
ItemPart NumberDescription1-Heater as sembl y
2-Electric boos ter heater
OVERVIEW
Due t o t he s lower warm up t imes as s oci at ed wi th the di es el engi ne, an elect ric booster heat er may be fit ted t o i ncreas eheat er performance. The el ect ri c boos t er heater does t hi s by heati ng the ai r leaving t he heater as sembl y.
The electric boos ter heater compris es cerami c coat ed t hermis t or el ements and a microcontroll er. A reques t for el ect ri cboos t er heat er operat ion origi nat es in the Aut omati c Temperature Control (ATC) module. Thi s reques t is t rans mi tt ed to theCentral Junct ion Box (CJB) over t he medium speed Controll er Area Network (CAN) bus . The CJB int erpret s t hi s reques t andoutputs a Puls e W idth Modul ati on (PW M) s ignal t o t he electric boos ter heater mi crocont roll er. The durat ion of t he puls esprovided by t he CJB is proport ional t o t he amount of heat ing requi red.
The amount of heat ing reques ted by the ATC i s bas ed on:
Ambient air t emperat ureEngi ne Coolant Temperature (ECT)Heati ng request .

Publi s hed: 11-May-2011
Auxiliary Climate Control - Fuel Fired Booster Heater
Des cript ion and Operat ion
COMPONENT LOCATION - VEHICLES WITHOUT FFBH REMOTE CONTROL
ItemPart NumberDescription1-Automat ic Temperat ure Cont rol (ATC) modul e
2-Fuel Fi red Boos ter Heater (FFBH)
3-Auxili ary coolant pump4-Ambi ent ai r temperat ure s ens or
5-Auxili ary fuel pump
COMPONENT LOCATION - VEHICLES FROM 2009MY WITH FFBH REMOTE CONTROL

ItemPart NumberDescription
1-Automat ic Temperat ure Cont rol (ATC) modul e2-Fuel Fi red Boos ter Heater (FFBH)
3-Auxili ary coolant pump
4-Ambi ent ai r temperat ure s ens or5-Auxili ary fuel pump
6-FFBH Recei ver
7-FFBH antenna mat chi ng unit
OVERVIEW
The Fuel fired Boos t er Heat er (FFBH) is rated at 5 kW and compensat es for t he rel ativel y low coolant t emperaturesinherent i n the di esel engine. The uni t is locat ed behind t he Right Hand (RH) front fender s plas h s hield and heat s enginecool ant downs tream of t he heat er core.
Operat ion of t he FFBH is controlled by the Aut omati c Temperature Control (ATC) module via the medi um s peed ControllerArea Net work (CAN) bus . Operati on of the FFBH i s influenced by:
Ambient air t emperat ureEngi ne cool ant temperat ure.
The FFBH wil l operate i f the ambient air t emperature is lower than 5 °C (41 °F) and s top if ambient t emperature reaches 8°C (46 °F). Operat ion of t he FFBH may als o be inhibit ed if t he fuel l evel drops below a predet ermi ned level .
Remote Operation - Vehicles from 2009MY
On vehicles from 2009MY the FFBH has remote operati on. The remote sys tem includes t he addi ti on of a FFBH receiver,

FFBH antenna mat chi ng uni t and a remote hands et for operati on of the s ys tem. The FFBH unit remains as previ ous l y fi tt edbut has upgraded s oftware. The Engine Cont rol Modul e (ECM) als o has a s oft ware cal ibrat ion upgrade. The ins trumentclus ter mes s age cent er di spl ays FFBH mes s ages when required.
AUTOMATIC TEMPERATURE CONTROL MODULE
The ATC module is mount ed in the center cons ole and is i ntegral wi th the control panel. The module works i n conjunct ionwit h t he ECM t o control al l aspects of heati ng, venti lat ion, and Air Condit ioning (A/C).For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
AUXILIARY FUEL PUMP
ItemPart NumberDescription
1-Fuel li ne connect or2-Non return valve
3-Solenoid coi l
4-Pl unger5-Fi lt er i nsert
6-Fuel li ne connect or
7-O-ring s eal8-Spring
9-Pi st on
10-Bus hThe auxi li ary fuel pump is mount ed on the RH s ide of t he fuel t ank and regulates t he fuel s upply t o t he FFBH. The pump isa s elf primi ng, s olenoid operat ed plunger pump, controll ed by a Puls e W idt h Modulation (PW M) s ignal from t he cont rolmodule i n t he FFBH. W hen the pump is de-energized, i t provides a pos it ive s hut-off of t he fuel s uppl y.