
A CANCEL s wit ch.
The s ys t em al so uses t he fol lowi ng:
The ECMThe s toplamp s wit ch.The APP s ens or
The ECM controls t he s et speed by modi fying engine speed/t orque and reques ti ng gear changes from t he transmis si on(aut omati c variant s only).
The s peed control sys t em als o us es i nput s from t he brake pedal swit ch, t he APP s ens or, t he ECM and t he ABS controlmodule.
The s peed control is operat ed by t he dri ver us ing only the s t eering wheel s wit ches . W hen s peed is act ive, the ECMregulat es the PW M s i gnal s to the fuel injectors t o adjus t the fuel supply as required to maintai n t he s et s peed.
Duri ng s peed control operat ion, t he ECM control s vehicle s peed by adjus ti ng fuel inject ion durat ion and ti ming. W hen t heaccelerator pedal i s pres s ed wit h s peed cont rol act ive, t he ECM output s a calculated throt tl e angle s i gnal in place of theact ual throt t le angle si gnal s produced by the APP s ens or. The cal cul ated t hrot tl e angle i s deri ved from fuel demand.
CONTROL SWITCHES
ItemPart NumberDescription1-Set target s peed/increas e s peed
2-Set target s peed/decreas e s peed
3-Resume set s peed4-Speed control sus pend.
The s peed control swit ches are located on t he LH s i de of the s t eering wheel. The s witches are connect ed via fly leadsdirect ly t o t he clock s pring. All t he s peed cont rol s wit ches are non-lat chi ng momentary rocker swit ches . The mini mum s ets peed is 18 mph (30 (km/h). Speed cont rol is aut omati cal ly s us pended i f the vehicle speed falls bel ow 15 mph (24 km/h).
The s peed control swit ches are res is t ive l adder type s wi tches. There are t hree rocker s wit ches as s oci at ed wi th speedcont rol , two of whi ch are for adapt ive s peed cont rol (where s peci fi ed). The s wit ches vary the resi s tance of a s ignal vol tages ent t o t he ECM. The s wit ches recei ve a 5 volt reference s upply. The ECM meas ures t he ret urned volt age to det ermi newhich s wi tch has been pres s ed.
Suspend Switch
The s uspend/resume swit ch controls t he s electi on of speed control. W hen t he i gni ti on is i n pos it ion II, a si ngle pres s oft he sus pend s wit ch wil l act ivate the s us pend mode. This temporaril y s wit ches off the s peed cont rol s yst em, but ret ai nst he previousl y s et s peed i n t he ECM memory.
Resume Switch
A s econd pres s of the s wi tch re-acti vat es the previousl y s et speed after t he s peed control has been s us pended by pres s ingt he sus pend s wit ch or by depres s ing the brake pedal.
Set Speed/Increase/Decrease Speed (+/–) Switches
W hen t he s peed cont rol s ys t em i s act ive, pres s ing t he '+' s wi tch s ets the controlled speed t o t he current road speed oft he vehi cl e. Subs equent moment ary pres s es of the s wi tch i ncreas es t he s et road s peed by 0.6 mph (1 km/h). If t he s wit chis pres sed and hel d the road s peed wil l conti nue to increas e unti l the s wi tch i s releas ed. Moment ari ly press i ng the '–'s wit ch, decreas es the s et s peed by 0.6 mph (1 km/h). If t he s wit ch is press ed and held, t he s et speed i s decreas ed unt ilt he swit ch is released.
CONTROL DIAGRAM
• NOTE: A = Hardwi red; D = Hi gh s peed CAN bus

14-Cabin t empera ture sensor15-Eva porator temperature se nsor16-ECM17-ATC modul e18-Fus e 27, CJB19-Blower mot or control module20-Sunloa d se nsor21-Fus ible link 17, BJB
PRINCIPLES OF OPERATION
Intake Air Control - Single Zone Manual System
The i ntake a ir source is cont rolle d manually by press ing the fres h/re circulat ed a ir switch located on the control panel. W he npress ed, the ATC module wil l illuminate the swi tch t ell-tale Light Emitti ng Diode (LED) and clos e the a ir intake door. A secondpress of the swit ch will caus e the ATC module to extinguish the swi tch LED and ope n the a ir intake door, a llowing fres h ai r toe nte r the cabin.
• NO TE: The ATC module wil l reduce the amount of fres h ai r ent ering the ca bin to reduce the ra m e ffect ca used by forwardmoti on of the ve hicle .
W he n recirculate d ai r is sele cted, the ATC module will re turn the air int ake door to the ope n position a fter a pe riod of 3minutes. Thi s he lps prevent mis ting within t he cabin. The 3 minute time pe riod for reci rcula ted air can be overridde n bypress ing and hol ding the fre sh/re circulat ed a ir s witch until t he s witch LED fl ashes 3 times. The air inta ke door will now remainclose d until t he next drive cycle.
The ATC module controls the pos ition of the air inta ke door by providing LIN bus messa ges to t he a ir intake door s teppermotor. A Hal l eff ect sens or l ocat ed withi n the st epper motor inf orms the ATC module that move me nt of the ste ppe r motor ist aking pl ace.
Intake Air Control - Dual Zone Automatic System
The i ntake a ir source is cont rolle d automatically unl ess overridden by press ing the fresh/recirculate d ai r switch loca ted on thecontrol pane l. Under aut oma tic control, t he ATC module det ermi nes the require d position of the air inta ke door usi ng it s'comfort' algorithm based on inputs from the ambient ai r tempe rature s ensor and the ca bin temperature se nsor.
W he n the ve hicle firs t enters power mode 6 (ignition on), the te ll-ta le LED on t he fresh/recirculated air swi tch will bei lluminat ed a nd t he air intake source wil l be aut oma tica lly controlle d by the ATC modul e. The ATC module will cont rol t hei ntake ai r source accordi ng t o ambie nt a ir te mpe rature a nd requeste d ca bin temperature. The intake ai r door will be opene d toa llow fre sh a ir into t he cabin, alt hough a small a mount of re circulat ed a ir will a lso be prese nt.
• NO TE: The ATC module wil l reduce the amount of fres h ai r ent ering the ca bin to reduce the ra m e ffect ca used by forwardmoti on of the ve hicle .
A single pres s of the fres h/re circulat ed a ir s witch wi ll extinguish the tel l-tal e LED. The ATC module will now close t he a iri ntake door a nd provide only recircul ated air into the cabin f or a period of 3 minutes . Af ter this peri od, the ATC module wil lreturn the ai r int ake door to automa tic control. This helps preve nt misti ng withi n the ca bin.
A second pre ss of the fre sh/recircula ted air s wit ch will a lso return the intake air source to a utomati c control and ill uminate thet ell-t ale LED.
The 3 mi nute time period for recircul ated air can be ove rridden by press ing and holding the fres h/re circulate d a ir switch untilt he s witch LED fl ashes 3 times. The air inta ke door will now remain clos ed unti l the next drive cycle .
The ATC module controls the pos ition of the air inta ke door by providing LIN bus messa ges to t he a ir intake door s teppermotor. A Hal l eff ect sens or l ocat ed withi n the st epper motor inf orms the ATC module that move me nt of the ste ppe r motor ist aking pl ace.
Intake Air Control - Dual Zone Automatic System with Pollution Sensor
The i ntake a ir source is cont rolle d automatically unl ess overridden by press ing the fresh/recirculate d ai r switch loca ted on thecontrol pane l. Under aut oma tic control, t he ATC module det ermi nes the require d position of the air inta ke door usi ng it s'comfort' algorithm based on inputs from the ambient ai r tempe rature s ensor, t he cabin temperature se nsor and the pollut ions ens or.
• NO TE: The ATC module wil l reduce the amount of fres h ai r ent ering the ca bin to reduce the ra m e ffect ca used by forwardmoti on of the ve hicle .
W he n the ve hicle firs t enters power mode 6 (ignition on), the 'AUTO ' te ll-ta le LED on the fresh/reci rcul ated air swit ch will bei lluminat ed a nd t he air intake source wil l be aut oma tica lly controlle d by the ATC modul e. A single pres s of thef resh/recircul ated air swi tch will exti ngui sh t he 'AUTO' te ll-t ale LED and illumina te t he 'MAN' te ll-ta le LED. The ATC modulewill now clos e the ai r int ake door and provide only recirculat ed a ir into t he cabi n for a period of 3 minutes. Afte r this period,t he ATC module will return t he a ir intake door to automatic cont rol. This he lps prevent mist ing within t he cabin.
A second pre ss of the fre sh/recircula ted air s wit ch will e xtinguis h both t he 'AUTO' a nd 'MAN' tel l-ta le LED's . The ATC modulewill now cont rol the inta ke a ir source according t o a mbie nt a ir te mperat ure and request ed cabin tempe rature. The a ir intakedoor will be opened to a llow fres h a ir int o the ca bin, but a s mal l amount of reci rcul ated air will also be pre sent . The amountof re circulate d ai r is dete rmi ned by t he ATC module using it s 'comfort' a lgorithm based on i nputs from the ambient airt emperat ure sensor and the cabi n te mpe rature s ens or.
A thi rd press of t he f resh/recirculate d ai r switch returns the air i ntake s ource to aut oma tic cont rol a nd will illumina te the'AUTO' te ll-ta le LED.
The 3 mi nute time period for recircul ated air can be ove rridden by press ing and holding the fres h/re circulate d a ir switch untilt he s witch LED's flas h 3 time s. The air intake door will now remain clos ed until the next dri ve cycle .
The ATC module controls the pos ition of the air inta ke door by providing LIN bus messa ges to t he a ir intake door s tepper

a utomati c control.
Air distri buti on can be re turned t o automatic control by pres sing the 'AUTO' swi tch loca ted in the ce nte r of the blower motorrotary controller. Thi s wi ll ill uminate the 'AUTO' LED and allow t he ATC module to control a ir di stribution in line wit h it s'comfort' algorithm
Air distri buti on is control led by 2 air dist ribution doors. The ATC module control s the position of the air dis tribution doors byprovi ding LIN bus me ssa ges to t he door ste pper motors . Ha ll ef fect sensors located wit hin the stepper mot ors inform t he ATCmodule t hat moveme nt of the st epper motors is taking place.
ECON - Single Zone Manual System
P ress ing the 'ECO N' moment ary swit ch on the control pa nel will swi tch off t he A/C s yste m. W he n s elected, the ATC modulewill t rans mit a mess age ove r the high speed CAN bus to the ECM re que sting the A/C compressor is dis able d. The ECMdisables the compres sor by de-e nergizing the A/C compress or control re lay loca ted in the BJB. The tell-tale LED in the swit chwill i lluminat e to ale rt the ve hicl e occupants tha t the system is in 'ECO N' mode .
W he n 'ECON' mode i s se lect ed, tempera ture control is s till a vai lable but no cooling of i ntake ai r wi ll ta ke place . The minimumoutput a ir te mpe rature f rom the sys tem will be ambient air tempera ture plus any heat pick up in the ai r int ake pat h.
A/C can be s witched back on by pres sing the 'ECON' swi tch a se cond time. This will als o extinguish the 'ECON' LED.
Stop/Sta rt Ve hicl es - From 2010 MY
From 2010 MY , t he 'ECON' switch wi ll be labeled ‘A/C’ to pre vent confus ion with the ‘Eco’ switch which operates the‘Stop/Sta rt’ a nd 'Gea r Change Indica tor' syst ems .For a ddit iona l inf ormation, re fer to: Starting Sys tem (303-06C Start ing Syst em - TD4 2.2L Diese l, Vehicles Buil t From:01-03-2009, Des cript ion and Ope rati on).
ECON - Dual Zone Automatic System
P ress ing the 'ECO N/O FF' momentary swi tch in the control pa nel will swi tch off t he A/C s yste m. W he n s elected, the ATCmodule will t rans mit a mess age ove r the high speed CAN bus to the ECM re que sting the A/C compress or is dis able d. The ECMdisables the compres sor by de-e nergizing the A/C compress or control re lay loca ted in the BJB. The 'ECO N' t ell-tale LED in t hes witch will il lumi nate to alert the ve hicle occupa nts that the sys tem is i n 'ECON' mode.
W he n 'ECON' mode i s se lect ed, tempera ture control is s till a vai lable but no cooling of i ntake ai r wi ll ta ke place . The minimumoutput a ir te mpe rature f rom the sys tem will be ambient air tempera ture plus any heat pick up in the ai r int ake pat h.
A second pre ss of the 'ECON/OFF' switch wil l ext inguish the 'ECO N' LED and illuminate the 'OFF' LED. W hen in 'OFF' mode t heATC module sets the blower mot or s pee d to 0. Air distri buti on i nto the cabi n wi ll remai n as pre viously sele cted. Al l LED's ont he control pane l wil l be ext inguishe d, a lthough night ti me illumina tion will remain acti ve.
• NO TE: W he n in 'OFF' mode , the he ated se at, heat ed windshie ld a nd heat ed rear window functions wi ll st ill be availa ble.
A thi rd press of t he 'ECO N/O FF' s wit ch re turns the s yste m to norma l (A/C) operation and extinguishes t he 'OFF' LED. Thes yste m can be re turned to a utomati c operat ion at a ny t ime by press ing the 'AUTO' swit ch mounted in t he cent ral (blowermotor) rotary control ler.
Stop/Sta rt Ve hicl es - From 2010 MY
From 2010 MY , t he 'ECON' switch wi ll be labeled ‘A/C’ to pre vent confus ion with the ‘Eco’ switch which operates the‘Stop/Sta rt’ a nd 'Gea r Change Indica tor' syst ems .For a ddit iona l inf ormation, re fer to: Starting Sys tem (303-06C Start ing Syst em - TD4 2.2L Diese l, Vehicles Buil t From:01-03-2009, Des cript ion and Ope rati on).
Programmed Defrost
The programmed def rost function is only ava ilable on ve hicl es fi tted wit h a dua l zone heati ng, vent ilat ion a nd A/C syst em.The f unction is s elected by press ing the 'PRO G' moment ary swit ch on the control pa nel. W hen s ele cted, the ATC moduleprovi des maximum winds hie ld de fros ting/de mist ing by confi guri ng t he s yste m a s follows:
'AUTO ' mode offIntake air set to fres h airAir di stribution se t to windshieldBlowe r motor spe ed s et t o maximumHeate d winds hiel d onRear window hea ter on.
W he n progra mmed defrost is sel ecte d, t he s et t emperat ure will remain unchanged. Programme d de fros t ca n be cancell ed bya ny of the following met hods:
P ress ing any air distribut ion moment ary swit chP ress ing the 'AUTO' s witch locate d in the center of t he blowe r motor rot ary cont rolle rP ress ing the 'PRO G' momenta ry s witch a second time .
• NO TE: Blower motor speed can be adjuste d wi thout te rmi nating programmed defrost.
Windshield Heater
The windshie ld heate r comprises 2 heate r el eme nts , LH and RH, bonded be twee n the glass laminat ions . The s yste m iss witched on by press ing the momentary swi tch l ocat ed on t he control panel . W hen selected, the ATC module t rans mits aheat ing request on t he high spe ed CAN bus to t he CJB. On rece ipt of the messa ge, the CJB ene rgiz es t he windshie ld heate rrelay loca ted in t he BJB by provi ding a ground path for t he relay coi l. The energized rela y provides a ba ttery fe ed t o bothheat er el eme nts . Aft er a period of 4 minutes the ATC module re moves t he request for windshie ld heati ng. The CJB the npowe rs down the windshield hea ter by re moving the ground pat h for the rel ay coil.
The ATC module will only reques t wi ndshield he ater ope rati on if the engine is runni ng. An e ngi ne s tatus si gnal is provi ded tot he ATC module by t he ECM over the high speed CAN bus.

12-Fuel fi red boos ter heat er
13-FFBH/DAB ant enna (Vehicles from 2009MY )
14-Fus e 32, BJB15-Fus e FA5, RJB
16-FFBH Remot e hands et (Vehi cl es from 2009MY )
PRINCIPLES OF OPERATION
If a heat ing reques t i s received and t he ambient air t emperature is les s t han or equal to 5°C (41 °F), t he ATC modulet ransmit s a 'supplement al heat' mes s age to the FFBH control modul e over the medi um speed CAN bus . The control modul eres ponds by ret urning a 's uppl ement al heat ' st atus mess age back to the ATC modul e. The control modul e wi ll now i nit iatet he FFBH st art s equence.
If the heati ng reques t is removed, or ambient air t emperat ure ris es t o 8°C (46 °F), the ATC modul e t rans mit s a 'heat er off'mes s age to t he FFBH cont rol module over t he medium s peed CAN bus . Again, t he cont rol module res ponds by returni ng a'heater off' s tat us mes sage back to the ATC modul e. The cont rol module wi ll now de-act ivate the FFBH.
If maxi mum heat ing i s reques ted, Engi ne Cool ant Temperature (ECT) becomes the overriding factor. In t his i nst ance, t heATC module wil l change the CAN bus mes sage from 'heater off' to 's uppl emental heat ' when ECT is bel ow or equal t o 70°C(158°F). If ECT ri ses to 78°C (172°F) t he ATC module returns the mess age t o 'heater off'.
The cont rol module wil l not s t art t he FFBH, or wil l dis cont inue operat ion, if any of the foll owing occur:
The cont rol module is i n t he error l ockout mode (see Diagnostics, below).The engi ne is not runni ng, or s t ops running for approxi mately 4 s econds . The ti me delay i s included for s t alldetecti on.A 'fuel cut -off' mes s age is recei ved from t he CJB over t he medium s peed CAN bus .For addit ional informat ion, refer t o: Air Bag and Safet y Belt Pretens ioner Supplement al Res traint Syst em (SRS)(501-20B Supplement al Res t raint Sys tem, Des cript ion and O perati on).A l ow fuel l evel mes s age is recei ved from t he CJB over t he medium s peed CAN bus (s ee t abl e below).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).
The cont rol module wil l control FFBH operat ion bas ed on t he fol lowi ng levels of fuel i n the tank.
Fuel Level, liters (US Gallons)Description
7.5 (1.98)St art
4.5 (1.18)St op10.5 (2.77)Res tart
Start Sequence
At t he begi nni ng of a s tart s equence, t he FFBH cont rol module;
energizes t he glow pi n and flame s ens or t o pre heat the combust ion chambers tarts t he combust ion ai r fan at s l ow s peedand energizes t he auxi liary cool ant pump.
Aft er approxi matel y 30 s econds , the control modul e energizes t he auxi li ary fuel pump at t he s tarti ng s equence s peed. Thefuel deli vered by the auxil iary fuel pump evaporates i n t he combus t ion chamber, mi xes wi th air from the combus ti on air fanand is ignit ed by t he glow pi n and fl ame s ensor. The cont rol module t hen progres s ively increases t he s peed of the auxil iaryfuel pump and t he combus t ion ai r fan. Once combus ti on is est ablis hed t he cont rol module swi tches t he glow pi n and fl ames ens or t o the fl ame s ens i ng functi on to monit or combus ti on. From t he begi nni ng of the st art s equence t o s tabl ecombus t ion at full load t akes approxi mately 150 seconds .
Full and Part Load Combustion
W hi le t he FFBH is running, the control modul e cycl es the heat er bet ween ful l l oad combus t ion, part load combus ti on and acont rol i dl e phase of operat ion, depending on the temperat ure of t he cool ant in t he heat exchanger.
The heat out put level at part l oad combus t ion i s 2.8 kW . Thi s ris es to 5 kW at full l oad combus ti on. The control modul et ransmit s t he amount of fuel us ed by t he FFBH to the i nst rument clus t er, and t he FFBH coolant t emperature t o t he ATCmodule.
Swit chi ng Point Temperatures

Switching Point
T emperature, ºC (ºF)Item NumberDescription1Full l oad to part load79ºC (174ºF)
2Part load t o cont rol idl e90ºC (194ºF)
3Control idle to part load74ºC (165ºF)4Part load t o ful l load69ºC (156ºF)
Aft er the st art s equence, the control modul e mai nt ains full load combus ti on unt il t he cool ant temperat ure reachess wit chi ng point temperature 1. At this temperat ure, t he cont rol module decreas es the speed of t he auxi liary fuel pump andt he combus ti on air fan t o half s peed, t o produce part load combus ti on. The control modul e maint ains part l oad combus t ionwhil e t he cool ant t emperat ure remains between s wi tching point t emperat ures 2 and 4. At part l oad combus t ion t het emperature of the coolant wil l increas e or decreas e dependi ng on t he amount of heat required t o heat the vehicle interior.If the coolant temperat ure decreas es t o s wit chi ng point temperature 4, the control modul e increas es t he speed of t heauxi li ary fuel pump and the combust ion ai r fan to full s peed, t o ret urn to full l oad combus ti on. If t he cool ant t emperat ureincreas es to s wit chi ng poi nt temperat ure 2, t he control modul e enters a cont rol i dl e phase of operat ion.
On ent ering the control i dle phas e, the control modul e immediatel y s wit ches t he auxili ary fuel pump off, t o s t opcombus t ion, and s tart s a ti mer for t he combus t ion air fan. Aft er a 2 mi nut e cool down period, the cont rol module s wi tchest he combus ti on air fan off and t hen remai ns in the control i dle phas e whil e t he coolant t emperat ure remains aboves wit chi ng point temperature 3. If t he cool ant t emperat ure decreas es to swi tching point temperat ure 3, t he cont rol moduleini ti at es a s t art t o part l oad combus t ion. A s tart to part load combus ti on takes approximat el y 90 s econds .
In order to li mit t he buil d up of carbon depos it s on t he glow pin and flame s ens or, t he cont rol module als o enters thecont rol i dl e phase if cont inuous combus t ion t ime exceeds 72 mi nut es (at part load, ful l l oad or a combinati on of bot h).Aft er the cool down period, i f the coolant is s t il l in t he t emperature range t hat requires addi ti onal heat , t he cont rol moduleres t art s the fuel fi red boost er heat er.
Shutdown
To s top the FFBH, the control modul e de-energi zes the auxil iary fuel pump to s top combust ion, but cont inues operati on oft he combus ti on air fan and t he auxi liary cool ant pump for a t ime, t o cool down the FFBH. The cool down t ime is 100s econds if t he FFBH was operat ing at part l oad combus t ion and 175 s econds i f the FFBH was operat ing at full loadcombus t ion.
Diagnostics
The cont rol module monit ors t he fuel fi red boos ter heater s yst em for fault s . Diagnost ic Troubl e Code's (DTC)'s are s t oredin a volati le memory in t he cont rol module, whi ch can be interrogated by the Land Rover approved diagnost ic sys tem viat he medium speed CAN bus .
The cont rol module al s o incorporat es an error lockout mode of operat ion t hat inhibits operat ion t o prevent serious faul tsfrom caus ing furt her damage t o t he s ys t em. In the error l ockout mode, t he cont rol module immedi ately st ops the auxil iaryfuel pump, and s tops t he combus t ion air fan and auxi li ary coolant pump aft er a cool down t ime of approxi mat el y 2mi nut es. Error l ockout occurs for:
Start failure and flameout: If a st art s equence fails to es t abl is h combus ti on, or a flameout occurs aft ercombus t ion i s es tabli shed, the cont rol module i mmediat ely i ni ti ates another s tart s equence. The s t art fai lure orfl ameout is als o recorded by an event t imer in t he cont rol module. The event ti mer is i ncreas ed by one after each

s tart fail ure or flameout, and decreas ed by one if a subs equent s tart is succes s ful . If t he event t imer i ncreas es t ot hree (over any number of drive cycl es), the cont rol module ent ers t he error lockout mode.Heat exchanger casing overheat: To prot ect t he s ys t em from exces s ive t emperatures , t he cont rol module ent erst he error l ockout mode if t he heat exchanger coolant temperat ure exceeds 125 °C (257 °F).Battery voltage out of limits: Error lockout wi ll occur if bat tery vol tage fall s bel ow 10.25 or ris es above 15.5 volt s .
The error lockout mode can be cleared usi ng the Land Rover approved di agnos ti c s ys t em, or by dis connect ing the bat terypower supply for a mi nimum of 10 s econds.
Remote Operation - Vehicles from 2009MY with FFBH Remote Control
The 868.3 MHz Radi o Frequency (RF) si gnal s t ransmit ted by the remote hands et are recei ved by the DAB/FFBH ant ennalocated i n t he LH rear s i de window. The s ignal s received by t he antenna are detected by t he FFBH receiver. A 'handshake's ignal is s ent back from the recei ver t o t he hands et t o confirm a val id on or off reques t and act ivate the handset LEDaccordi ngl y. The recei ver proces s es the s i gnal it recei ved and trans mi ts the appropriate si gnal s via a dedi cat ed bus t o theFFBH cont rol module.
• NOTE: The ‘handshake’ si gnal only confi rms hands et-receiver communi cat ions were s uccess ful , and not that t he FFBH hast urned on.
W hen t he FFBH is act ivated by the remote hands et, t he FFBH cont rol module will al low t he FFBH t o operate for 30 minutesor unt il an off request is received from t he remot e hands et or CJB. During t he 30 minut e period, the FFBH may operat e i neit her full l oad combus ti on, part load combus t ion or a controll ed idle phas e of operat ion, depending on t he t emperature oft he coolant i n t he heat exchanger.
Pre-burn Thresholds
The FFBH unit wi ll only acti vat e remotely if t he fol lowing thres hold condit ions are met:
Pre-burn batt ery vol tage check: ≥11.5V (volt age at FFBH terminals )Pre-burn coolant temperat ure check: ≤15°C (int ernal FFBH measurement )Pre-burn fuel l evel check: ≥7.5 lit ers (value s t ored i n FFBH at ignit ion off)
The fuel level val ue s tored wit hin t he FFBH unit i s only updated when t he engine i s running. W hen s t art ing t he FFBH viaremot e control wit h the engi ne off, the fuel l evel value us ed in the FFBH calculat ions wi ll be t hat s t ored at t he las t key offevent . It i s t herefore poss ibl e for t he FFBH t o fai l to operat e remotel y if t he engine was s t opped wi th a low fuel level; i ft he fuel tank i s s ubs equent ly refuell ed, the FFBH s t ored fuel l evel wil l st il l read l ow i f the engine has not been s tarteds ince refuel li ng.
If the FFBH does not act ivate due to low bat tery vol tage or l ow fuel l evel, t he FFBH cont rol module transmit s a mes s age ispass ed on t he medi um and high speed CAN bus es, vi a t he CJB to the i nst rument clus ter mes s age cent er which wil l dis playone of the foll owing mes s ages at i gnit ion on:
AUXILIARY HEATER UNAVAILABLE LOW FUELAUXILIARY HEATER UNAVAILABLE LOW BATTERY .
If bot h l ow fuel and low batt ery volt age mes sages are val id, t he ins trument cl ust er mes sage center wi ll alt ernate bet weent he two mes sages .
Remote Control ‘Park Heat’ to ATC ‘Supplementary Heat’ Transitions
• NOTE: The FFBH can s ti ll be acti vat ed by t he ATC module as previ ous l y descri bed
If the FFBH has been operated remot el y (‘park heat’) and the vehicl e is st art ed whilst the FFBH i s s ti ll act ive, it willt ransi ti on int o t he ATC-control led ‘s upplement ary heat’ mode if t he ATC request s i t.
Shoul d t he ATC t hen send a mess age t o t he FFBH to turn off, the FFBH will remain active if 30 minut es has not yetelaps ed from t he ori ginal remot e cont rol ‘park heat ’ request . Once t he remai nder of 30 mi nut es has elaps ed, t he FFBH wil lt urn off.
Swit chi ng Point Temperatures
W hen remotel y s tarted t he FFBH us es a different s et of s wit chi ng poi nt temperat ures t o t he normal ‘supplement al heat’mode. Thi s is because the remot e s tart feature can s tart the FFBH wi th the engine off – t hus different t hres hol ds arerequired t o opti mis e t he heati ng of the engine coolant.
Swit chi ng Point Temperatures

23-Transmis s ion warni ng indi cat or (low li ne only)
24-Hil l Des cent Cont rol (HDC) fault i ndi cat or (l ow li ne only)
25-Door open i ndi cat or (l ow li ne only)26-Engi ne management s yst em warning i ndicat or (l ow l ine only)
27-Side l amp indicat or
28-Dynami c Stabil it y Control (DSC) indicat or29-HDC acti ve indicator
30-Ant i-t heft alarm i ndi cat or
31-Glow pl ug indicat or (dies el vehicles onl y)32-Fuel fired boos ter heater i ndi cat or (i f fi tt ed)
The low li ne ins trument cl ust er cont ains 39 i ndi cat ors , the hi gh li ne ins t rument clus ter 27. The indicators in hi gh li neins t rument clus ters are s upplemented by mess ages in the mess age cent er.For addit ional informat ion, refer t o: Informat ion and Mes s age Cent er (413-08 Informat ion and Mes s age Cent er, Des cript ionand Operat ion).
The warni ng indicators can be s plit i nto 2 groups ; sel f cont roll ed and ext ernall y cont rol led. Self cont rol led warni ngindicat ors are dependent on software l ogi c wit hin t he i ns t rument clus ter for act ivati on. External ly controll ed indicators ares uppl ied wi th current from anot her s yst em cont roll ing module or ill uminat ed by the ins trument cl us t er on receipt of amedium s peed CAN bus mes sage from the CJB.
Ignition/No Charge Indicator
The ignit ion/no charge indicator i s cont rol led by t he ins t rument clus ter s oft ware and i ll uminated by medium speed CAN buss ignals from the ECM via t he CJB. The indicator il lumi nat es i n a red col or when the vehicle ent ers power mode 6 and isexti nguis hed when t he engine i s s tart ed.
If the i ndi cat or remai ns ill uminat ed aft er the engine has s t art ed or ill uminat es when drivi ng, t he alt ernator charge out puthas fai led.
Low Oil Pressure Warning Indicator
The low oil pres s ure warning i ndi cat or is i lluminated by t he i ns t rument clus ter on recei pt of a medium speed CAN buss ignal from t he CJB. The s ignal ori gi nates i n t he ECM and is generat ed by t he engi ne oil l evel s ens or on petrol vehicl es andt he engi ne oil pres s ure s ensor on di esel vehi cles .
The indicat or i ll uminates i n a red color when t he vehi cl e enters power mode 6 for a 3 s econd bulb check. If t he bul bs ubs equent ly ill uminat es when the engine is runni ng, t he engine s houl d be s t opped i mmediat ely i t is s afe to do s o.
Malfunction Indicator Lamp
The Malfunct ion Indicat or Lamp (MIL) i s il lumi nat ed by t he ins trument cl ust er on receipt of a medi um s peed CAN bus s ignalfrom the CJB. The si gnal originat es in t he ECM and i s generated if an On-Board Diagnos ti c (OBD) fault has been det ectedwhich wi ll caus e excess i ve emis s ions output. Thi s may rel ate to ei ther an engine management or trans mi ss i on fault .
The MIL is ill uminat ed in an amber color when t he vehi cl e enters power mode 6 for a 3 s econd bul b check. The bul b checkin thi s ins tance is carri ed out by the ECM vi a t he CJB, not t he ins trument cl ust er. If t he MIL subs equent ly i lluminates t hevehi cl e s houl d be i nterrogated us ing t he Land Rover approved diagnost ic sys tem at the earli es t opport uni ty.
Safety Belt Warning Indicator
The s afety bel t warni ng indicator wi ll il lumi nat e i n a red color on receipt of a medi um s peed CAN bus s ignal from t he CJB.The s ignal origi nat es in the Res traint s Cont rol Module (RCM), which monit ors the s t at us of t he occupant clas s ificati ons ys t em and s wi tches located i n t he s afety bel t buckles .
Three vari ati ons of warning are avai lable depending on vehicle confi gurati on:
Reminder (al l vehicl es except Nort h Ameri can Specificati on (NAS) vehicles )Federal Mot or Vehi cl e Safet y Standard (FMVSS) 208 remi nder (NAS vehi cles only)Belt Mi nder
The condi ti ons for s afety bel t warning indicator il lumi nat ion are as follows :
Reminder
Vehicle i n power mode 6Dri vers s afet y belt not s ecured in i ts buckleLarge pas senger det ect ed i n front pas s enger s eat wit h an uns ecured safety bel t.
The warni ng indicator wi ll remai n i lluminated unt il eit her t he i gni ti on is swi tched off or condi ti ons 2 and 3 no longer exis t .
FMVSS-208 Reminder
Vehicle i n power mode 6Dri vers s afet y belt not s ecured in i ts buckle.
The warni ng indicator wi ll remai n i lluminated for 65 s econds and wil l be accompanied by a si ngl e 6 second chi me from theins t rument clus ter s ounder.
• NOTE: The warni ng indicator and chime wil l not acti vat e i f thes e condi ti ons aris e 75 seconds aft er t he vehicle hasentered power mode 6.
The warni ng indicator wi ll be exti ngui shed and t he s ounder cancell ed if t he i gni ti on is s wi tched off or t he dri ver's s afet ybelt i s s ecured in i ts buckle.
Belt Mi nder

Vehicle i n power mode 6 (all vehi cles except NAS vehicles )Vehicle i n power mode 6 for 75 s econds (NAS vehicl es onl y)Vehicle s peed is greater t han 6 mph (10 kph)Dri vers s afet y belt not s ecured in i ts buckleLarge pas senger det ect ed i n front pas s enger s eat wit h an uns ecured safety bel t.
The warni ng indicator wi ll flas h at a frequency of 2 Hz while accompani ed by a chime from the i nst rument clus ter for 10s econds. Thi s is foll owed by a 10 s econd period where the warning i ndicat or is permanent ly ill uminat ed and the s ounder i ss il ent . Thi s 10 s econd cycle wi ll be repeat ed for a maxi mum of 190 seconds or any of t he condit ions l is t ed above cease toexis t.
Supplemental Restraint System Warning Indicator
The Suppl ement al Rest rai nt Sys tem (SRS) warning i ndi cat or is i lluminated on recei pt of a medium s peed CAN bus si gnalfrom the CJB. The si gnal originat es in t he RCM whi ch monit ors t he condi ti on of the SRS and ill uminat es the red warni ngindicat or accordingly.
The SRS warni ng indicator i s il lumi nat ed by t he RCM for a 6 s econd bul b check when the vehicle firs t ent ers power mode 6.If a fault is detect ed wit h t he indicator, the ins trument cl us t er returns a medi um speed CAN bus s ignal vi a t he CJB to theRCM and a Diagnos t ic Troubl e Code (DTC) i s s tored in the RCM's memory. The mes s age 'SrS' wi ll als o be di spl ayed i n t heodometer.For addit ional informat ion, refer t o: Informat ion and Mes s age Cent er (413-08 Informat ion and Mes s age Cent er, Des cript ionand Operat ion).
Left and Right Hand Turn Signal Indicators
The green l eft and right hand turn s ignal i ndicat ors are i ll uminated on recei pt of medium speed CAN bus s i gnals from t heCJB. The CJB provi des a CAN bus s ignal wit h one of t he foll owing values :
0 - LH st eeri ng col umn mul ti -funct ion s wit ch in the central pos it ion1 - LH st eeri ng col umn mul ti -funct ion s wit ch in the LH turn posi ti on2 - LH st eeri ng col umn mul ti -funct ion s wit ch in the RH turn pos it ion3 - Hazard fl as hers reques t ed.
If the vehicle is i n power mode 6 t he ins trument cl ust er wil l fl as h the appropri ate turn s ignal i ndicat or if a medium speedCAN bus s ignal is recei ved wit h a value of 1 or 2. Medi um s peed CAN bus s ignals wi th a value of 3 wi ll acti vat e both theLH and RH turn s ignal i ndicat ors si mult aneous ly i rrespecti ve of power mode.
W hen acti vat ed, the l eft and right hand turn s ignal indicators wil l be accompanied by 'ti ck t ock' chimes from t he ins trumentclus ter s ounder.
Brake Warning Indicator
EBA and EBD warnings are trans mi tt ed t o t he CJB from t he ABS module over t he high s peed CAN bus . Thes e s ignals arerel ayed t o t he i ns t rument clus ter on t he medium s peed CAN bus and wil l act ivate the brake warning i ndicat or when t hevehi cl e i s in power mode 6. If an EBA warni ng is request ed, the i ndi cat or wil l ill uminat e in an amber color. If an EBDwarni ng is reques t ed, t he indi cat or will i ll uminate in a red color.
Low brake flui d level warnings are als o t rans mit t ed to the i nst rument clus t er from the CJB on the medi um s peed CAN bus .The s ignal origi nat es in the ABS modul e which recei ves a hardwired input from the brake flui d level s ens or. If a l ow brakefl uid warning i s reques ted, the indicator wil l il lumi nat e i n a red col or when the vehicle is i n power mode 6.
The brake warni ng indi cat or i s als o s ubject t o a 3 second bul b check when the vehicle firs t ent ers power mode 6. Theindicat or wi ll i lluminate in a amber color for 1.5 s econds t hen a red col or for 1.5 s econds .
High Eng ine Coolant Temperature Warning Ind icator
The red hi gh Engine Coolant Temperature (ECT) warning i ndi cat or is control led by the engine t emperat ure gage s oft ware(see above).
Headlamp High Beam Indicator
The blue headlamp hi gh beam i ndi cat or is i ll uminated on recei pt of a medium s peed CAN bus si gnal from the CJB. Thes ignal origi nat es in the l ight s wit ch module and i s t ransmit ted t o t he CJB over t he LIN bus. The i nst rument clus t er will onlyil lumi nat e t he headl amp high beam indicator when t he vehicle i s in power mode 6 and t he LH s teeri ng column mul ti -functi on s wit ch is moved t o t he high beam pos i ti on.
Tire Pressure Monitoring System Indicator
The Tire Pres s ure Moni tori ng Syst em (TPMS) indicator i s cont rol led by t he ins t rument clus ter on receipt of medium s peedCAN bus s ignals from t he CJB. The s ignal ori gi nates i n t he TPMS module. The indicator i s il lumi nat ed in an amber col or fora 3 second bulb check by the TPMS modul e when t he vehi cl e enters power mode 6. If t he indicator remains i lluminated orfl ashes after t he engi ne is st art ed or when dri vi ng, the TPMS has developed a faul t. The t ire pres s ures s houl d bemonit ored manuall y unti l the fault is recti fi ed.For addit ional informat ion, refer t o: W heels and Ti res (204-04 W heels and Tires , Des cript ion and Operat ion).
Anti-lock Brake System Warning Indicator
The Anti -l ock Brake Sys t em (ABS) warning i ndicat or is controll ed by the ABS module whi ch trans mi ts a high s peed CAN busmes s age to t he CJB. The CJB relays t he mes sage t o t he i ns t rument clus ter over the medi um s peed CAN bus . The warningindicat or i s il lumi nat ed i n an amber col or for 3 s econds for a bulb check by the ABS modul e when t he vehi cl e enters powermode 6. If the warning i ndi cat or remains ill uminat ed or ill uminat es when drivi ng, an ABS fault has occurred and t he ABSfuncti on wil l not be avai lable.
Duri ng the bul b check, if t he warni ng indicator comes on for 0.5 s econd, t hen goes off for 0.5 second and is then