
DT CDescriptionPossible CausesAction
B1D33-92Flame Int errupt ionDuri ng NormalOperat ion -performance orincorrect  operat ion
No fuel  pres ent at fuel fi redboos t er heat er modul eExhaus t sys t em blockedAir i nt ake blocked
Check vehicle fuel levelCheck fuel  l ines  t o fuel  fired boos ter heatermodul e for bl ockage, ki nki ng or damageCheck exhaus t  s yst em and ai r int ake forblockage, ki nki ng or damageCheck fuel  for aerati on and correct fuel deliveryCheck vehicle i s  not parked on an i ncl ine whenparking heater i s operatedUsi ng t he manufacturer approved diagnost icsys t em, record t hen clear any st ored di agnos ti ctroubl e codes  t hen conduct the fuel fi redboos t er heater operation test (Set up andconfigurat ion/auxili ary heat er/operat ion t es t)Check for st ored di agnos ti c troubl e codesCheck for correct operat ion
B1D34-68Heater In Lock O utMode - eventinformat ion
Fuel  fired boos t er heaters ys t em faul t• NOTE: For i nformati on onl y, recti fy ot her s t ored fuelfi red boos ter heat er diagnos t ic t rouble codes  pri or tothi s diagnos t ic t rouble code
Usi ng t he manufacturer approved diagnost icsys t em, record t hen clear any st ored di agnos ti ctroubl e codes  t hen conduct the fuel fi redboos t er heater operation test (Set up andconfigurat ion/auxili ary heat er/operat ion t es t)Check for st ored di agnos ti c troubl e codesCheck for correct operat ion
B1D63-11External  ControlRelay - circui t s hortt o ground
Fuel  fired boos t er heatermodule failureCheck and i ns t all a new fuel fi red boost erheat er modul e as  requi redFor addit ional informati on, refer t o: Fuel FiredBoos t er Heat er (412-02B Auxil iary Climat eCont rol , Removal and Ins t allat ion).Refer to the warrant y policy and proceduresmanual , or det ermi ne if any prior approvalprogramme is  in operat ion, pri or t o t heins tal lati on of a new modul e/component
B1D63-15External  ControlRelay - circui t s hortt o batt ery or open
Fuel  fired boos t er heatermodule failureCheck and i ns t all a new fuel fi red boost erheat er modul e as  requi redFor addit ional informati on, refer t o: Fuel FiredBoos t er Heat er (412-02B Auxil iary Climat eCont rol , Removal and Ins t allat ion).Refer to the warrant y policy and proceduresmanual , or det ermi ne if any prior approvalprogramme is  in operat ion, pri or t o t heins tal lati on of a new modul e/component
U0010-00Medium Speed CANCommunicati on Bus -no s ub t ypeinformat ion
Medium speed CANcommuni cat ion bus  offUsi ng t he manufacturer approved diagnost icsys t em, compl et e a CAN network int egrit y t est
U0028-08VehicleCommunicati on BusA - Bus  Si gnal  /Mes sage Fail ures
Medium speed CANcommuni cat ion bus  offFuel  fired boos t er heatermodule failure
Usi ng t he manufacturer approved diagnost icsys t em, compl et e a CAN network int egrit y t est
U0300-00Int ernal Cont rolModule Soft wareIncompati bili ty - nos ub type i nformati on
Fuel  fired boos t er heatermodule not  configured orincorrect ly confi gured
Re-configure the fuel fi red boost er heat ermodul e us ing t he manufacturer approveddiagnos t ic s yst em (Moduleprogramming/Confi gure exis t ingmodul e/Auxil iary heat er control modul e)
U1A37-87Cras h St atusTelegram Bus Signal/ Mes sage Fail uresMis s ing mess age
Cras h s ignal received overCAN network• NOTE: Event  i nformat ion - the rest rai nts  controlmodul e has  recorded a cras h event
Usi ng t he manufacturer approved diagnost icsys t em, check other modules  for relat eddiagnos t ic t rouble codes
U2101-00Control  ModuleConfigurat ionIncompati ble - nos ub type i nformati on
Fuel  fired boos t er heatermodule not  configured orincorrect ly confi guredCent ral  junct ion box notconfigured correct ly
Usi ng t he manufacturer approved diagnost icsys t em, record t hen clear any st ored di agnos ti ctroubl e codes  t hen conduct the fuel fi redboos t er heater operation test (Set up andconfigurat ion/auxili ary heat er/operat ion t es t)Check for reoccurrence of t he diagnost ic troubl ecodeIf t he diagnost ic troubl e code returnsUsi ng t he manufacturer approved diagnost icsys t em check and up-dat e t he car confi gurati onfi le as  requi redRe-configure the Fuel fi red boos ter heatermodul e us ing t he manufacturer approveddiagnos t ic s yst em 

Publi shed: 06-Jul-2011
General Information - Diagnostic Trouble Code (DTC) IndexDTC: Body
Control Module (BCM)
Des cript ion and Operat ion
• 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 .
For addit ional informat ion, refer t o: Communicati ons  Net work (418-00 Modul e Communicati ons  Net work, Des cript ion andOperat ion).
Body control module (BC M)
DT CDescriptionPossible CauseAction
B100A-11Fuel  PumpAuthoris ati on - ci rcuits hort  t o ground
Fuel pump authori s at ionci rcuit  - s hort  t o groundRefer to electrical ci rcuit  diagrams and check fuel  pumpaut hori sat ion circui t for s hort  t o ground
B100A-15Fuel  PumpAuthoris ati on - ci rcuits hort  t o power oropen
Fuel pump authori s at ionci rcuit  - s hort  t o power,open circui t
Refer to electrical ci rcuit  diagrams and check fuel  pumpaut hori sat ion circui t for s hort  t o power, open circui t
B1024-08Trans ponder - Buss ignal/Mess ageFailures
Trans ponder - Buss i gnal /mes s age fail uresCarry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1024-51Start Cont rol  Uni t -not programmedSt art  control uni t - notconfi guredRe-configure the st art  control uni t usi ng themanufacturer approved diagnost ic sys tem
B1024-81Start Cont rol  unit  -invali d s eri al  dat areceived
Inval id serial data recei vedCarry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1024-87Start cont rol  unit  -mi ss i ng mes sageMis si ng mes s ageCarry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1024-96Start cont rol  unit  -component  int ernalfai lure
Internal  fail ureIns t al l a new s t art  cont rol  unit , refer to newmodule/component  i nst all at ion not e at  t he top of t heDTC IndexB1025-81Trans ponder - invali ds eri al  dat aInval id serial data recei vedCarry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys temB1026-08Steering Column Lock- Bus  Signal/Mes sageFailures
St eering col umn lock - Buss i gnal /mes s age fail uresCarry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1026-51Steering Column Lock- not programmedSt eering col umn lock - notconfi guredRe-configure the st eeri ng col umn lock us ing t hemanufacturer approved diagnost ic sys tem
B1026-52Steering Column Lock- not act ivat edRequest  to enable thes t eering column locks upply not  approved
Check LIN circui t bet ween s teering column l ock and CJB
B1026-71Steering Column Lock- actuator s t uckShould be set  i f the SCL isunable to reach locked andO K posi ti on
Carry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1026-82Steering Column LockSt eering col umn locki ncorrectl y programmedIns t al l a new s t eering column lock
B1026-92Steering Column Lock- performance orincorrect  operat ion
Micro s wi tch/s ens or faultCarry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1026-94Steering Column Lock- unexpectedoperati on
St atus  mes s ages  arerecei ved from t he SCLwhen SCL should be turnedoff
Carry out  the pi npoint  t es ts  as s oci at ed t o t his  DTCusi ng t he manufact urer approved diagnost ic s ys tem
B1026-96Steering Column Lock- component  i nt ernalfai lure
Internal  fail ureIns t al l a new s t eering column lock, refer t o t he newmodule/component  i nst all at ion not e at  t he top of t heDTC Index 

11-Int egrated audio modul e
12-Int egrated control modul e
PRINCIPLES OF OPERATION
Windshield Wiper Switch
ItemPart NumberDescription
1-Intermit tent  wi pe/rai n s ens or
2-Low s peed wipe3-Hi gh s peed wi pe
4-Singl e wipe - pul l down and releas e
5-Intermit tent  wi pe del ay or rai n s ens or s ens it ivi ty6-Intermit tent  operat ion of t he rear wiper
7-Operat es t he rear was her and wi per
The winds hield wiper functi ons  are operat ed by moving t he s wit ch up or down. Fl ick wi pe is  s elected by pus hing the s wi tchdown. The swi tch i s  non-l at chi ng in thi s posi ti on and wiper operati on is  st opped when the swi tch i s  rel eas ed and i t ret urnst o the off posi ti on. The fli ck wipe s wi tch contact is  connect ed on a s ingl e wire t o t he Cent ral  junct ion box (CJB) andground. Thi s is  the s ame connect ion t o t he CJB as  t he fas t s peed wipe. W hen t he s witch is  operat ed t he ci rcuit  i scompleted bet ween the CJB and ground. The CJB detects  the complet ed circui t and operat es  t he wipers for as  l ong as  thes wit ch cont act  i s made.
Int ermit tent is  sel ect ed by pushi ng the wiper swi tch up, t o t he det ent pos i ti on; t he wi pers  operate at the del ay periods elect ed on t he rot ary swi tch on the wi per st alk. The wipers remai n in the i ntermit tent  mode unt il  t he wiper s wit ch ismoved t o the off or s low/fas t speed pos it ions. The i ntermit tent  s wit ch cont act  is  connected bet ween t he CJB and ground.W hen t he s wit ch is  moved to the i ntermit tent  posi ti on t he ci rcuit  i s  completed. The CJB detects  the complet ed circuit  andoperates  t he wi pers  i n the intermit t ent  delay sel ect ed for as  l ong as  the s wi tch contact is  made.
The int ermi tt ent del ay period is  s elected us i ng a rot ary control on the wiper s wit ch st alk. The rot ary control al lows  t hedri ver t o s elect s ix delay periods to s ui t the prevai li ng weather condit ions . The rot ary control i s  connected on three wirest o the CJB and a s ingle wire to ground. The s i x pos i ti ons  each us e a di fferent combinat ion of t he t hree wi res . The CJBdetects , via the t hree wi res , which s electi on has been made and operates  t he wi pers  wi th the appropri ate del ay.
Slow speed operat ion i s s el ect ed by pus hi ng t he wiper s wit ch up, t o t he s econd det ent  pos it ion. The wipers operate ats low speed unti l the wiper swi tch i s  moved t o t he off, intermit t ent  or fast  s peed posi ti ons . The s low s peed s wi tch contactis  connect ed between t he CJB and ground. W hen t he s wit ch is  moved t o t he s low speed pos it ion t he circuit  is  complet ed.The CJB detects  t he complet ed ci rcuit  and operat es the wipers  at  s l ow s peed for as  long as  the s wi tch cont act is  made.
Fast  s peed operati on is  sel ect ed by pushi ng the wiper swit ch up, t o t he thi rd det ent pos it ion. The wi pers operate at fas ts peed unt il  t he wiper s wit ch is  moved to t he off, int ermi tt ent or sl ow s peed pos i ti ons . The fas t  s peed s wit ch cont act  i sconnected bet ween the CJB and ground. W hen t he s wit ch is  moved to the fast  speed posit ion t he circuit  i s  complet ed. TheCJB detects  t he complet ed ci rcuit  and operat es the wipers  at  fas t speed for as  long as  t he s wit ch cont act  i s made.
The winds hield washer functi on butt on is  locat ed on t he end of t he swit ch st alk. W hen t he butt on is  pres sed a circuit  i scompleted bet ween the CJB and ground. The CJB detects  the complet ed circui t and operat es  t he winds hield washer for aslong as  t he butt on i s depress ed.
Rear W as h/W i pe Swit ch
The rear was h/wi pe functi ons  are operat ed by moving t he s wit ch rearwards . Rear wi pe is  sel ect ed by moving t he wi pers wit ch rearwards t o the fi rs t detent posi ti on. The rear wiper swit ch is  connected bet ween t he CJB and ground. W hen thes wit ch is  moved t o t he rear wi per pos it ion t he circui t is  complet ed. The CJB det ect s t he compl eted circui t and operates  t herear wi per for as  long as  t he s wit ch cont act  i s made.
The rear was her i s  s elected by movi ng the wiper s wit ch rearwards to the s econd, non-l atching pos it ion. W hen t he s wit ch ismoved t o thi s posi ti on a circui t is  compl et ed between t he CJB and ground. The CJB det ect s  t he completed ci rcuit  andoperates  t he rear was her for as  l ong as  the s wi tch contact is  made.
For addit ional informat ion, refer t o: W i pers  and W as hers (501-16 W ipers  and W as hers , Des cri pti on and Operati on).
Turn Signal Indicator and Headlamp Switch
The t urn s ignal indicator s wit ch as sembl y is  locat ed i n the left  hand s ide of t he case and is  retai ned in t he case wit h t wos crews . The swi tch i s  connected t o t he mai n harnes s via a connect or on the back of the s wit ch. The s wit ch cont rol s thefol lowing funct ions :
Left  / right turn s ignal operati onHigh / low beam operati onHeadl amp flas hComputer functi on s electi on (i f fi tt ed). 

C-HP pipe connecti on – fuel  rail  t o inject or (4 off)
1-Fuel rail
2-PCV3-Fuel rail  press ure sens or
The fuel  rai l is  manufact ured from forged st eel and secured t o t he cyl inder head with 2 fixings . The fuel rai l st orespres s urized fuel  from t he HP pump, and prevent s  pres s ure fluct uat ions  i n the HP s ys tem. A fuel  rail  pres s ure s ens or and aPW M PCV are ins tall ed int o t he bore at  each end of the fuel rail . The pres s ure s ensor i s ins tal led at  t he acces sory dri veend of the fuel rail ; the PCV ins tal led at  t he transmis s ion end of t he fuel rai l.
High-pres sure fuel  pipes  connect t he fuel rai l t o t he HP pump and fuel inject ors . A l eak-off pipe connect s the fuel rail  t ot he fuel fi lt er return circui t.
The common fuel  rail, fuel press ure s ens or and PCV form an int egral as s embly, and mus t not  be separat ed. If a faultoccurs  that  requires  component  renewal, t hen t he compl ete fuel rail  as s embl y mus t  be renewed.
Fuel Rail Pressure Sensor
The fuel  rai l pres sure s ens or is  mount ed i n t he end of the fuel  rail  (access ory drive end) and connected to t he ECM vi a t heengi ne harnes s. The press ure sens or is  provi ded wit h a 5V power s upply, ground and signal connect ions . The fuel railpres s ure s ensor i s a pi ezo-res is ti ve type s ens or contai ni ng an actuati ng diaphragm. Deflect ion of t he diaphragm provides  aproport ional si gnal  (output) volt age t o t he ECM, dependant  on t he fuel  pres s ure wit hin t he fuel  rai l.
Pressure Sensor ParametersPressure Sensor Output VoltageFuel Rail Pressure
0.5V230 bar (3,336 ps i)
4.5V1,600 bar (23,206 ps i)The ECM compares  t he s ens or s ignal vol tage t o s tored memory val ues, i n order t o cal cul ate the actual fuel  pres s urepres ent in t he fuel  rail. The ECM then us es t he fuel rai l press ure informat ion t o cont rol  t he operati ng posi ti on of the VCVand PCV.For addit ional informat ion, refer t o: Electroni c Engi ne Controls  - 2.2L Dies el (303-14 El ect ronic Engine Cont rols  - 2.2LDies el, Des cript ion and Operat ion).
Pressure Control Valve (PCV)
The PCV i s mounted i n t he end of the fuel rail  (trans mi s si on end) and connect ed t o the ECM via t he engine harnes s . ThePCV i s a s olenoid-operat ed valve cont rol led by a 12V PW M si gnal . The ECM operat es  the PCV to adjus t  t he fuel  pres s urewit hin the fuel rail . Rel ieved fuel  is  direct ed through t he fuel  rail leak-off pipe t o t he fuel fi lt er ret urn circui t. The l eak-offfuel  als o provi des  cooli ng and lubricat ion for t he PCV.For addit ional informat ion, refer t o: Electroni c Engi ne Controls  - 2.2L Dies el (303-14 El ect ronic Engine Cont rols  - 2.2LDies el, Des cript ion and Operat ion).
The PCV i s normall y open when t he s ol enoi d is  not  energi zed by the ECM. The resi s tance val ue of the PCV sol enoi d coi l is3.6 ohms at 20°C (68°F).
The PCV i s als o us ed by t he ECM t o provide di rect cont rol of the fuel sys tem, in t he fol lowi ng si tuat ions :
Duri ng s udden t rans ient phas es  i n engine s peed (s uddenl y li ft ing off the accel erat or pedal, for example) where VCVact ion is  not  s ufficient to affect  t he s uppl y of fuel to the fuel rail .To cont rol  fuel  press ure in t he event  that the VCV fai ls .Duri ng the fuel heat ing period, when supply fuel temperat ure is  l ess  than 40°C (104°F). The VCV i s  ful ly opened byt he ECM and t he HP pump compres s es a maximum quanti ty of fuel  t o rais e t he fuel t emperature. The PCV is  t henmodulat ed by the ECM to provide l eak-off fuel  from the fuel rail  t o t he fuel fi lt er ret urn circui t. The fuel i s  t henrecircul ated t hrough t he fuel fi lt er and back t o t he HP pump.W hen t he fuel  s uppl y t emperature is  greater t han 70°C (158°F). The PCV is  modul ated by t he ECM t o releas e fuelrai l pres sure, s ubs equentl y decreasi ng the fuel temperat ure to protect the fuel sys tem component s. Leak-off fuelfrom the fuel  rail  is  direct ed to the fuel fil ter return ci rcuit  and back t o the fuel tank.Duri ng engi ne s hut down t o progres s ively coll aps e fuel rail  pres s ure.
FUEL INJECTORS 

The refrigera nt press ure  sensor provides  the  ECM wi th a  pre ssure input  from the  high press ure  side  of t he refri gera nt s yste m.The pres sure  sensor  is locat ed in the  ref rige rant  line  be twee n the conde nse r and the thermosta tic  expa nsion valve .
The ECM supplie s a 5 V reference fe ed t o the pressure s ens or a nd recei ves  a re turn signal volta ge, bet wee n 0  V and 5  V,relat ed t o system pressure.  The  ECM use s the s igna l from t he s ensor to protect  the  ref rigerant  sys tem from extremes  ofpress ure .
If the  pre ssure withi n the re frige rant  sys tem exceeds the minimum  or maximum pre ssure li mits , the ECM will;
disable the A/C compress or (TD4 vehicles )re duce A/C compress or di spla cement  (i6  vehi cles ).
If a reduction in  A/C compre ssor displace me nt fa ils  to bring the  sys tem back into it's optimum  pres sure  range, the  i6 ECM  willdisable t he A/C compres sor.
The ECM constantly  sends a  refrigera nt s yst em pres sure  signal  to the ATC module.  The signal i s tra nsmitte d from  the  ECM tot he Cent ral Junct ion  Box (CJB) over  the  high spe ed CAN bus . The CJB acts a s a  gate way and provides t he press ure  signal t ot he ATC  module  over the  me dium speed CAN bus.
If the  pre ssure withi n the re frige rant  sys tem rise s a bove  its  ma ximum press ure  limit, the ATC module will  incre ase  thea mount of re circulate d a ir enteri ng t he cabin. This helps  lower t he press ure  wit hin t he refrigera nt s yste m a nd t hus  helps toa void ha ving to disa ble t he A/C  compres sor.
EVAPORATOR TEMPERATURE SENSOR
The e vaporat or t emperat ure  sensor  is a  Negative Te mpe rature Coef ficie nt (NTC) the rmistor. The se nsor is  mounted on the  LHs ide  of the heate r ca sing, and meas ures  the  temperature of  cooled  air once  it has t rave led  ove r the  evaporator. The se nsorrecei ves  a 5  V re fere nce  feed from the ATC module.  By monitori ng t he returned volt age , the  ATC module ca n ca lcul ate  theresis tance of  the  sensor  and hence e vaporat or t emperat ure.
CABIN TEMPERATURE SENSOR 

The cabin te mpe rature s ensor comprises  a NTC  thermist or a nd a  motor. The  sensor is mounted behind  a grill on the driverss ide  of the instrume nt panel , adjace nt t he s teering  column.
• NO TE:  The  cabin te mperat ure  sens or i s only fi tted to vehi cles  with a dual  zone, a utomati c cli mat e control system.
The motor is  provide d an ele ctrical f eed  from the  ATC module and draws  ca bin a ir in through the grill a nd over  the  thermis tor.The t hermist or re ceives  a 5  V re fere nce  feed from the ATC module.  By moni toring the re turned  volt age, the  ATC modul e ca ncalculate  air  tempera ture  wit hin  the  cabin.
CABIN HUMIDITY SENSOR
The cabin humidity s ens or is  located wit hin  the  inte rior  mirror a nd comprise s 3  individual el eme nts :
A humidit y se nsorAn ai r temperature se nsorA windshi eld  glas s te mpe rature s ens or.
• NO TE:  The  cabin humidity  sens or i s an opt iona l fit  onl y.
The readings  from these  3 s ensors combine  to reduce the ri sk of mi sting on the  windshield.
The humidity sensor element is  cont aine d behind a  nylon mesh  cove r. The s ens or comprise s an ele ment made  up of fil mcapa citors on dif fere nt s ubst rate s. The diele ctric is a  polyme r which abs orbs  or  rele ases  wa ter  proportional  to t he humidity oft he a ir being dra wn t hrough  the  sensor.  This  causes  a change in the  capacit ance of  the  sensor.
Humidity wit hin  the  cabi n is  controll ed by ra ising or  lowering the  te mpe rature of the  evaporator. An increas e in eva poratort emperat ure  increase s the moist ure  cont ent  of t he a ir in the  cabin.  Lowering the evaporator tempe rature re duces t he mois tureconte nt of the ai r in  the  cabin.
The capa cita nce  of t he s ensor, t oget her  with both te mperat ure  values,  are  provided as  LIN bus  me ssages t o the ATC module.The ATC  module  use s these  signals  to calculate  the  dew point of the ai r at  the  windshi eld. W hen t he t emperat ure  of t hewindshie ld glass  rea ches  or  falls  bel ow t his  value, misti ng i s likely  to occur. In  this  inst ance, the ATC module will;
ra ise  the  tempera ture  of  the  air l eaving t he heat er a ssemblya djus t the position of the  windshield dis tribution (de fros t) s tepper motora djus t the position of the  air inta ke  stepper  mot orre duce A/C compress or di spla cement  (i6  only)powe r the  windshield hea ter  element s (if  fitt ed).
AMBIENT AIR TEMPERATURE SENSOR 

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 

10-RH s i de turn s ignal lamp
11-Licens e pl ate lamps
12-LH rear l amp as s embl y13-RH rear lamp as s embly
14-LH headlamp as s embly
15-AFS cont rol  module16-Headl amp l evel ing mot or
17-RH headlamp as s embly
18-Steering wheel modul e19-LH s t eering column mult ifunct ion s wit ch
20-High mount ed s top lamp
21-Central  Junct ion Box (CJB)22-Revers e s wit ch (manual transmis si on only)
23-Stoplamp s wit ch
24-Rain/light  s ensor25-Hazard flas her s wi tch
26-Light s wit ch modul e
27-Fuse 15A (F33)
CENTRAL JUNCTION BOX (CJB)
The CJB receives exteri or li ght ing relat ed inputs  from t he fol lowing s wi tches:
Light s wit ch modul e- Side l amp pos it ion- Headlamp pos it ion- Automat ic (AUTO) posi ti on (if fi tt ed)- Front  fog lamp swi tch (if fit ted)- Rear fog l amp s wit ch- Dimmer cont rol- Headlamp l evel ing control  (if fit ted).Brake s wi tchLH s t eering column mult ifunct ion s wit ch for t urn si gnal  i ndi cat ors  and hi gh beam/headl amp flas hHazard flas her s wi tchRain/light  s ensor (LIN si gnal ).
Circuit Protection
Two 60 Amp fus ibl e li nks  in t he batt ery junct ion box protect the power feed to the CJB LH and RH li ght ing ci rcuit sres pect ively. All  ext erior l ighti ng ci rcuit s  are prot ect ed by Field Effect  Trans is t ors  (FETs ), l ocat ed in the CJB, which candetect overloads and s hort circuit s .
The FETs  res pond to heat  generated by increased current fl ow caus ed by a s hort ci rcuit . On a normal ci rcuit  t his  woul dcaus e t he fus e to bl ow. The FETs  respond t o t he heat  i ncrease and di s connect  t he s uppl y t o t he affect ed ci rcuit . W hen t hefaul t is  rect ified or t he FET has cool ed, t he FET wil l res et and operate t he circui t normall y. If t he faul t pers is ts  the FET wi llcycle, di sconnect ing and reconnect ing t he power supply. The CJB s tores  fault  codes which can be ret rieved usi ng a LandRover approved diagnost ic sys tem. The fault  code wil l identi fy t hat there is  a fault on a part icular out put which as si s t infaul t det ect ion.
Alarm Indications
The exteri or li ght ing s ys tem is  us ed for al arm arm and dis arm reques ts . W hen t he driver l ocks  or unlocks the vehicle, avis ual i ndicat ion of a s uccess ful  l ock or unlock reques t is  di spl ayed t o t he dri ver by the hazard flas hers  operat ing a numberof ti mes .For addit ional informat ion, refer t o: Anti -Theft  - Act ive (419-01A Anti -Theft  - Acti ve, Des cri pt ion and Operati on).
Lights On Warning chime
W hen t he i gni ti on in the off (power mode 0) or auxi liary (power mode 4) mode and the l ighti ng cont rol  rotary swit ch is  i nt he si de lamp or headlamp posi ti on, a warning chime wi ll s ound i f the driver's  door is  opened. This  indicates  t o t he dri vert hat  t he exterior li ght s  have been left  on. The chime is  generat ed from t he i ns t rument  clus ter s ounder on receipt  of ali ght s  on s i gnal , a door open s ignal and an ignit ion swi tch off s ignal  from t he CJB on the hi gh s peed CAN bus.
Crash Signal Activation
W hen a crash s ignal  i s  t rans mit ted from t he Rest rai nts  Cont rol Modul e (RCM), t he CJB act ivat es  the hazard flas hers  andt he turn s ignal indicators  in t he i ns t rument  clus ter. The hazard fl ashers  wil l continue to operate unt il  t he ignit ion mode ischanged t o t he auxi liary power mode 4or the off power mode 0 or the RCM no longer trans mi ts  the cras h si gnal .For addit ional informat ion, refer t o: Air Bag and Safet y Belt  Pretens ioner Supplement al  Res traint  Syst em (SRS) (501-20BSuppl ement al Rest rai nt  Sys tem, Des cri pti on and Operati on).
Headlamp Timer
The CJB cont rol s a headl amp t imer funct ion whi ch allows  the headlamps  t o remain on for a peri od of ti me after leaving t hevehi cl e. Thi s  is  a dri ver conveni ence feat ure which il lumi nat es  t he dri veway after leaving t he vehicle.
This  feat ure can onl y be acti vat ed by pulli ng t he high beam ' flas h-t o-pas s' on t he LH s t eering column mult ifunct ion s wi tch.It can be deacti vat ed eit her by ti ming out  or by pull ing t he mul ti funct ion swi tch again.
The default  s ett ing can be changed by a Land Rover or authorized deal er . The default t imi ng is  s et  t o 30s but can bechanged t o 0s  (OFF), 30s (defaul t), 60s , 90s , 120s , 150s  and 180s .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).