2006 LAND ROVER FRELANDER 2 ECO mode

DT CDescriptionPossible CausesAction
B1D28-15Fuel Pre-heater -circuit short tobatt ery or open
• NOTE: The pre heat i s performedby the ignit ion gl ow plug
Fuel fired boos t er heaterglow pl ug int ernal fault
Carry out ci rcuit checks , ins pect t he glow pl ugcables and connect orCheck and i ns t all a new fuel fi red boost erheat er glow plug as requi red For addi ti onalinformati on, refer t o: Fuel Fired Boos t er Heat erGlow Pl ug And Burner As sembl y (412-02BAuxi liary Cli mate Cont rol , Removal andIns tal lat ion).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
B1D29-93No St art , Even AfterRest art At t empt - nooperati on
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
B1D30-93No St art In TestMode - no operat ionNo 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
B1D31-94Flame Det ect ed Priort o Normal Operat ion- unexpectedoperati on
• NOTE: The glow pl ug and fl ames ens or are a combi ned uni t
Glow pl ug circui t fault
Check exhaus t s yst em and ai r int ake forblockage, ki nki ng or damageCarry out ci rcuit checks , ins pect t he glow pl ugcables and connect or. Repair t he ci rcuit or checkand ins tal l a new fuel fired boos t er heater glowplug as requi red For addit ional i nformati on,refer t o: Fuel Fired Boost er Heat er Glow PlugAnd Burner Ass embly (412-02B Auxil iary Cli mateCont rol , Removal and Ins t allat ion).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
B1D32-92Mult ipl e FlameInt errupt ion DuringHeati ng Cycl e -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 t er heat ermodul 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

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

DT CDescriptionPossible CauseAction
C1A01-96LED Circui t -componentint ernal fail ure
Terrain res pons e rotarycontrol and controlmodul e - LED s hortcircui t t o groundTerrain res pons e rotarycontrol and controlmodul e - LED opencircui t
• NOTE: If t he s yst em i s i n 'fails afe default mode due t oanot her i s sue no LEDs will i ll uminate. This fault does notcaus e t he s ys t em t o go t o 'fail safe default '.
Refer to the Des cri pt ion and Operati on s ect ion of works hopmanual . Check t errai n res ponse s ys t em, special programLEDs . One or more of the LEDs i s s uspected of notill uminat ing as appropri ate. W it h the engi ne running movethe t errain respons e rot ary control through al l fi ve programsand confi rm t he appropriat e s peci al program LED does notill uminat e when t he terrain res pons e rotary cont rol i s in thatpos it ion. Sus pect t he terrain res pons e rotary cont rol andcont rol module, check and ins t al l a new t errain respons erot ary cont rol and control modul e as required, refer t o t henew module/component i nst all ati on not e at t he t op of theDTC Index.
C1A02-94Rotary EncoderStuck InInt ermedi at ePosi ti on -unexpectedoperati on
The t errain respons erotary cont rol is hel d i nan intermediate pos i ti on(between t he s peci alprograms ) for more t han60 secondsForei gn objectprevent ing correctoperat ion of t errai nrespons e rot ary controlMechani cal damage t ot he t errai n res ponserotary cont rol
• NOTE: Sus pect driver error do not replace the terrainres pons e rotary cont rol at thi s t ime
Check for forei gn object prevent ing correct operat ion ofterrain res pons e rotary cont rol. St art t he vehi cle engine,rot at e t he t errai n res ponse rot ary control unt il it has l ocat eda genui ne detent, wai t 60 s econds. St op t he vehi cl e engine,cl ear t he DTC and retes t
U0073-88Control ModuleCommunicati onBus "A" Off - busoff
Bus off. The TerrainRes pons e Cont rolModule has det ect ed t hedat a bus is not avail abl eCAN bus open ci rcuitCAN bus short ci rcuit t ogroundCAN bus short ci rcuit t opowerFail ure of anothercontrol modul e on t heCAN bus
Refer to el ect ri cal circui t diagrams , check CAN ci rcuit for openci rcuit , short to ground, s hort t o power, repai r/renew asneces sary. Us i ng the manufact urer approved diagnos t icsys tem, carry out network int egrit y t est . Check t he s yst em isoperat ing correctl y and the DTC does not return.
U0100-87LostCommunicati onW i th ECM/PCM "A"- mi ss i ngmes s age
The Terrain Res ponseCont rol Modul e has notrecei ved one or moreexpect ed mes s ages fromt he Engine ControlModuleHi gh s peed CAN circuitcommunicat ions fai lureOpen ci rcuit EngineCont rol Modul e,powerfeedOpen ci rcuit EngineCont rol Modul e, grounds upplyEngine Cont rol Modul edi sconnect ed from t hehi gh s peed CANcommunicat ion busOpen ci rcuit EngineCont rol Modul e highs peed CAN l ow circui tOpen ci rcuit EngineCont rol Modul e highs peed CAN hi gh ci rcuitEngine Cont rol Modul enot configuredEngine Cont rol Modul efail ure
Usi ng t he manufact urer approved diagnost ic s ys tem, checkthe Engine Cont rol Modul e for DTCs and refer t o t he rel evantDTC index. Usi ng the manufact urer approved diagnos t icsys tem, carry out network int egrit y t est . Us ing t hemanufact urer approved diagnos t ic s ys tem, re-configure t heEngi ne Cont rol Module. Refer t o electrical ci rcuit diagrams,check power feed and ground s uppl ies , to Engi ne Cont rolModul e for open circui t. Check for open circuit Engine Cont rolModul e high s peed CAN l ow circui t. Check for open circuitEngi ne Cont rol Module hi gh s peed CAN high circui t, repai r asneces sary
U0101-87LostCommunicati onwit h TCM -mi ss i ng mes sage
The Terrain Res ponseCont rol Modul e has notrecei ved one or moreexpect ed mes s ages fromt he Trans mi ss ionCont rol Modul eHi gh s peed CAN circuitcommunicat ions fai lureOpen ci rcuitTrans mi s si on Cont rolModule, powerfeedOpen ci rcuit
Usi ng t he manufact urer approved diagnost ic s ys tem, checkthe Trans mi s si on Cont rol Module for DTCs and refer to therelevant DTC index. Usi ng t he manufact urer approveddi agnos t ic s yst em, carry out net work i ntegri ty tes t. Us i ng themanufact urer approved diagnos t ic s ys tem, re-configure t heTransmis s ion Control Modul e. Refer t o el ect ri cal circui tdi agrams , check power feed and ground s upplies , t oTransmis s ion Control Modul e for open circui t. Check for openci rcuit Trans mi ss i on Cont rol Module hi gh s peed CAN lowci rcuit . Check for open circui t Trans mis s ion Cont rol Modul ehi gh s peed CAN high circui t, repai r as neces s ary

Publi shed: 06-Jul-2011
General Information - Diagnostic Trouble Code (DTC) IndexDTC: Heating
Ventilation and Air Conditioning Control Module (HVAC)
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 DTC's are recorded and, after performi ng t he pinpoint tes t s, a fault i s not pres ent , an i nt ermit tent concern maybe t he caus e. Always check for loose connect ions and corroded terminals .
For addit ional informat ion, refer t o: Cli mate Cont rol Syst em (412-00 Cl imat e Control Sys tem - General Informat ion,Diagnosi s and Tes ti ng).
Heating ventilation and air conditioning control module (HVAC )
DT CDescriptionPossible CauseAction
B102E-09Air quali ty s ens or generalfai lure informati on -Component fai lures
Int ernal s ens or faultInst all a new air qual it y s ensor
B102E-11Air quali ty s ens or generalelectrical fail ures - Ci rcuits hort to ground
Air quali ty s ens or circui t -s hort to groundIncorrect cli mat e cont rolmodule i nst all ed
Refer t o t he electrical ci rcuit diagrams and checkair quali ty sens or ci rcuit for short to ground. Inst alla new cl imat e control modul e as required, refer t onew modul e/component ins t al lat ion not e at thet op of the DTC Index
B102E-12Air quali ty s ens or generalelectrical fail ures - Ci rcuits hort to bat t ery
Air quali ty s ens or circui t -s hort to powerAir quali ty s ens or - O pencircuit
Refer t o t he electrical ci rcuit diagrams and checkair quali ty sens or ci rcuit for short to power. Ins tal la new air qualit y s ensor as requi red
B1030-09Left front s eat heatergeneral fail ure i nformat ion- Component failures
Seat heat er modul eint ernal fail ureInst all a new seat heater module, refer to the newmodule/component ins tal lati on note at the t op oft he DTC IndexB1030-4BLeft front s eat heaters ys t em i nternal fai lures -Over temperat ure
Seat heat er modul eint ernal fail ureSens or incorrect /nofeedback
Cl ear DTC and re-t es t. If DTC remai ns ins tal l a news eat heat er modul e, refer t o t he newmodule/component ins tal lati on note at the t op oft he DTC Index. Ins t all a new front s eat heat er mat
B1030-87Left front s eat heater buss ignal/mess age fai lures -Mis s ing mess age
LIN bus ci rcuit or s eatheat er module powers uppl y ci rcuit fault
Refer t o t he electrical ci rcuit diagrams and checkt he front left seat heater module LIN Bus circui t,power and ground s uppl y circuit s for short ci rcuit t oground, s hort circuit t o power, open circui t, hi ghresi st anceB1032-09Right front seat heatergeneral fail ure i nformat ion- Component failures
Seat heat er modul eint ernal fail ureInst all a new seat heater module, refer to the newmodule/component ins tal lati on note at the t op oft he DTC Index
B1032-4BRight front seat heaters ys t em i nternal fai lures -Over temperat ure
Seat heat er modul eint ernal fail ureSens or incorrect /nofeedback
Cl ear DTC and re-t es t. If DTC remai ns ins tal l a news eat heat er modul e, refer t o t he newmodule/component ins tal lati on note at the t op oft he DTC Index. Ins t all a new front s eat heat er mat
B1032-87Right front seat heater buss ignal/mess age fai lures -Mis s ing mess age
LIN Bus ci rcuit or s eatheat er module powers uppl y ci rcuit fault
Refer t o t he electrical ci rcuit diagrams and checkt he front ri ght s eat heat er module LIN Bus circui t,power and ground s uppl y circuit s for short ci rcuit t oground, s hort circuit t o power, open circui t, hi ghresi st anceB1034-01Left front s eat heaterelement general fail ureinformat ion - Generalelectrical fail ure
Element damaged, opencircuitRefer t o t he electrical ci rcuit diagrams and checkt he left front seat heater element circui t for opencircui t
B1035-01Left rear s eat heat erelement general fail ureinformat ion - Generalelectrical fail ure
Element damaged, opencircuitThis DTC wil l onl y log in vali dat ion mode. No hel pt ext requi red
B1036-01Right front seat heaterelement general fail ureinformat ion - Generalelectrical fail ure
Element damaged, opencircuitRefer t o t he electrical ci rcuit diagrams and checkfront ri ght seat heater element circui t for opencircui t

Ensure that the steering wheel is in the straight ahead position, do not turn the st eering w heel prior to checking the
fluid level.
Check t hat the flui d level is t o t he mi d-way mark between the MAX and MIN marks on t he fluid res ervoir, t op-up i f
neces s ary. Clean t he area around the res ervoi r fi ll er cap, remove cap.
CAUTION:
Do not fill reservoir above the MAX mark.
If necess ary, t op-up us ing t he recommended fluid to the mid-way mark on the reservoi r.
For addit ional informat ion, refer t o: Specificati ons (211-02 Power St eering, Specificati ons).
Ins t all the res ervoir fill er cap.
Windshield Washer Reservoir
Remove the winds hi eld was her res ervoir fill er cap.
Top-up t he res ervoir us ing a mi xt ure of an approved wi nds hiel d was her flui d and wate
r unti l the level i s t o the
bott om of t he gauze fil ter i n t he res ervoir fil ler neck. Ins t all the res ervoir fill er cap.
Engine Oil and Filter
• CAUTIO NS: For vehi cl es operati ng under arduous condi ti ons see relevant secti on.

Vehicles operating on high sulphur content fuel - above 0.7%, the oil and filter cha nge period MUST NOT
exceed 3 months or 3,750 miles (6,000 km).
Vehicles operating on moderate sulphur content fuel - 0.3 to 0.7%, the oil and filte r change period MUST NOT
exceed 6 months or 7,500 miles (12,000 km).
Renew engi ne oil and fil ter.
For addit ional informat ion, refer t o: Oil Fil ter El ement (303-01A Engine - I6 3.2L Pet rol , Removal and Ins t allat ion).
Air Filtering
CAUTION: For vehi cl es operati ng under arduous condi ti ons s ee relevant s ecti on.
1. Every 2 years or 30,000 miles (48,000 km): Replace the ai r cl eaner element .
For addit ional informat ion, refer t o: Air Cl eaner (303-12B Int ake Ai r Dis t ri but ion and Fi lt ering - TD4 2.2L Di es el, Removal
and Ins t allat ion).
Fuel Filter
1. Every year or 15,000 miles (24,000 km): Drai n water from the fuel fi lt er.
1. Every 2 years or 30,000 miles (48,000 km): Replace fuel fi lt er el ement.
For addit ional informat ion, refer t o: Fuel Fil ter (310-01B Fuel Tank and Lines - TD4 2.2L Dies el, Removal and Ins tall ati on).
Automatic Transmission
Every 10 years or 150,000 miles (240,000 km): Renew automat ic t rans mis s ion flui d.

The cont rol ling software for t he TPMS i s located wi thi n t he CJB. The s oft ware det ects t he fol lowing:
t he ti re press ure is bel ow t he recommended low pres sure value - under infl ated t iret he pos i ti on of the t ire on t he vehi cle.
The s ys t em compri s es a Radio Frequency (RF) receiver, 4 init iat ors and 4 ti re press ure s ens ors (5 if t he spare wheel has as ens or fi tt ed).
The 4 i nit iators are hard wi red t o t he CJB. The i nit iators t rans mit 125 KHz Low Frequency (LF) s ignals t o t he t ire pres s ures ens ors which res pond by modifying t he mode s t at us wi thin the RF trans mi s si on. The 315 or 433 MHZ RF s ignals aredetected by the RF recei ver whi ch is l ocat ed at the rear of t he vehicle, behi nd t he headl ining. The RF receiver is connect edt o the CJB on the Local Interconnect Net work (LIN) bus . The received RF s i gnals from t he t ire pres s ure s ensors are pas s edt o the CJB on the LIN bus and contain identi fi cat ion, pres sure, temperat ure and accel erat ion i nformat ion for each wheeland t ire.
The TPMS s oft ware communi cat es wit h t he ins trument cl ust er via t he medium s peed Control ler Area Net work (CAN) bus toprovide t he driver wit h appropri at e warnings. The TPMS s oftware als o i ndi cat es s tat us or fail ure of t he TPMS orcomponents .
Tire Location and Identification
The TPMS can identi fy the pos it ion of t he wheel s on t he vehi cle and as s ign a recei ved ti re press ure s ens or identi fi cat ion t oa s peci fi c posi ti on on t he vehi cl e, for exampl e FL (front l eft ), FR (front ri ght ), RL (rear left ) and RR (rear right). Thi s feat ureis required because of the di fferent pres sure t argets and t hres hold bet ween the front and rear t ires.
The wheel l ocat ion i s performed aut omati cal ly by t he TPMS s oft ware us i ng an 'auto-locati on' funct ion. Thi s functi on is full yautomat ic and requi res no i nput from t he dri ver. The TPMS software automat icall y re-learns t he pos it ion of t he wheel s ont he vehi cl e if t he t ire pres s ure s ensors are replaced or the wheel posi ti ons on t he vehi cl e are changed.
The TPMS s oft ware can aut omat icall y detect, under all operati ng condit ions , the following:
one or more new t ire pres sure s ensors have been fit t edone or more ti re press ure s ens ors have s t opped t rans mi tt ingTPMS s oft ware can reject identi fi cat ions from ti re press ure sens ors whi ch do not belong to the vehiclet he spare wheel and one of t he 'runni ng' wheels on the vehicle have changed pos it ions .
If a new t ire pres s ure s ensor i s fi tt ed on any 'running' wheel , the s oft ware can learn t he new s ens or i dent ificati onautomat ically when the vehicle is driven for more t han 15 mi nut es at a s peed of more than 20 km/h (12.5 mph).
• NOTE: The s pare wheel is not fit ted wit h a t ire pres s ure s ens or.
TPMS Operation
Each ti me t he vehi cl e i s dri ven the TPMS s oft ware act ivates each i ni ti ator i n turn to t rans mit a LF 125 KHz s ignal t o eacht ire pres sure s ensor. The LF si gnal i s received by t he ti re pres sure s ens or which responds by t rans mit ti ng a 315 or 433MHZ (depending on market ) si gnal whi ch is received by t he RF recei ver. The si gnal contains coded data which corres pondst o s ens or identi fi cat ion, air pres s ure, air t emperature and accel erati on data. This i s t hen pas s ed to the CJB on the ISO9141 K Line.
If the vehicle has been parked for more than 15 minutes and t hen dri ven at a s peed of more t han 12.5 mph (20 km/h), t heini ti at ors each fire an LF s ignal in turn for 18 s econds i n t he fol lowing order:
Front LHFront RHRear RHRear LH.
Each ti re press ure s ens or res ponds i n t urn whi ch allows the TPMS s oftware to est ablis h the s ensor pos it ions at t he st art oft he drive cycle. This proces s is repeat ed up t o t hree t imes but l ess if t he s ens or pos i ti ons are already known. The processis known as 'Auto Locati on' and t akes 2 to 4 mi nut es t o compl ete.
Duri ng thi s peri od the t ire pres s ure sens ors t rans mi t at regular int ervals , once every 5 s econds (once every 15 s econds onNAS vehicles ). For the remainder of the drive cycl e t he t ire pres sure s ensors transmit once every 60 s econds or more oft enif a change of ti re pres sure is sens ed unti l the vehicle st ops and the TPMS ret urns t o t he parking mode.
Once the wheel pos it ions have been es t abl is hed, t he i ni ti ators s top t rans mit t ing t he LF s ignal and do not t rans mi t agai nunti l the vehicle has been parked for more than 15 minutes .
The warni ng appears in t he i ns t rument clus ter mes s age cent re when the i nfl at ion press ure has fal len t o 25% of t henominal pres s ure. The dis played mes sage wi ll als o i ncl ude the pos it ion(s) of t he affect ed wheel(s).
The TPMS enters 'Parki ng Mode' aft er the vehicl e s peed has been l es s t han 20 km/h (12.5 mph) for 15 minut es . In parkingmode t he t ire pres sure s ensors transmit a coded RF s ignal once every 13 hours. If t he ti re pres sure decreas es by more
t han 0.06 bar (1 lbf/in2 ), t he s ens or wil l trans mi t more oft en if pres s ure in t he t ire is bei ng los t.
The s pare wheel ti re press ure s ens or als o t rans mit s a si gnal once every 13 hours i n t he s ame manner as the 'running
wheels ' when in parki ng mode. If t he t ire pres sure decreases by more t han 0.06 bar (1 l bf/i n2 ), the s ensor wi ll t rans mitmore oft en if press ure in t he t ire is bei ng los t .
Initiators

The care point s detai led i n 'Tire Changing' earlier i n t hi s s ect ion must be foll owed to avoi d damage to the sens or. If a news ens or is fi tt ed, a new nut, s eal and was her mus t als o be fit ted and the s ensor nut t ightened t o t he correct torque asgiven i n the Service Repai r Manual .
Instrument Cluster Indications
ItemPart NumberDescription
1-Low ti re press ure warning indicator
2-Mes s age cent reThe warni ng indicati ons to the driver are common on all vehi cl es fi tt ed wi th TPMS. The dri ver i s alerted t o s ys tem warningsby a l ow t ire pres s ure warning i ndi cat or in t he i ns t rument clus ter and an appli cable text mes s age in t he mes s age cent re.
The TPMS s oft ware wit hi n t he CJB pas s es s yst em s t atus i nformat ion to the i nst rument clus ter on t he medi um s peed CANbus. The i nst rument clus t er t hen convert s t his dat a int o il lumi nat ion of t he warni ng indi cat or and di spl ay of an appropriat emes s age.
W hen t he i gni ti on is s wi tched on, the warning i ndi cat or is i ll uminated for 3 s econds for a bul b check.
• NOTE: If the vehicle is not fit ted wi th the TPMS, t he warning indicator wi ll not ill uminat e.
The ins t rument clus ter checks, wit hi n t he 3 s econd bul b check peri od, for a CAN bus mes s age from t he TPMS. Duri ng thi st ime the TPMS performs int ernal tes ts and CAN bus ini ti al is ati on. The warning i ndi cat or wil l be ext inguis hed if t he TPMSs oft ware does not is s ue a faul t mes s age or t ire pres s ure warning mes s age.
If a TPMS faul t warning mess age is det ect ed by t he ins t rument clus ter at ignit ion on, t he warni ng indicator wi ll flas h for 75s econds aft er the 3 s econd bulb check period and t hen remai n permanent ly i lluminated.
If a ti re pres sure warni ng mes sage i s detected by the i nst rument clus t er at i gni ti on on, the warning i ndi cat or wil lexti nguis h briefly after t he 3 s econd bulb check peri od, before re-il lumi nat ing to indicate a ti re pres sure warni ng.
The fol lowing table shows t he warni ng indicat or funct ionali ty for given event s:
EventInstrument Cluster IndicationsLow pres s ure warning l imit reached in hi ghs peed modeW arni ng indicat or i ll uminated. 'TY RE PRESSURES LO W FOR SPEED' mes sagedis played.Low pres s ure warning l imit reached in onewheel in l ow s peed modeW arni ng indicat or i ll uminated. 'CHECK ALL TY RE PRESSURES XX LOW 'mes sage di spl ayed.
Low pres s ure warning l imit reached in moret han one wheel i n low s peed modeW arni ng indicat or i ll uminated. 'CHECK ALL TY RE PRESSURES' mes s agedis played.
W arning l imi t reached in any 'running' wheeland no l ocat ion s peci fi ed by TPMSW arni ng indicat or i ll uminated. 'CHECK ALL TY RE PRESSURES' mes s agedis played.
W arning l imi t reached in s pare wheel (if fit ted)W arni ng indicat or i ll uminated for 20 s econds and again at s ubsequentignit ion cycles . 'CHECK SPARE TY RE PRESSURE' mess age dis played.
TPMS faul tW arni ng indicat or flas hing for 75 s econds and then remains permanent lyil lumi nat ed. 'TY RE PRESSURE MONITORING SY STEM FAULT' mes sagedis played.

Publi s hed: 11-May-2011
Wheels and Tires - Wheels and Tires
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the wheel s and ti res and Ti re Press ure Monit oring Sys tem (TPMS), refer t o t he rel evantDes cript ion and Operat ion s ecti on in the works hop manual.REFER to: W heel s and Tires (204-04 W heel s and Tires, 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, obvi ous si gns of damage and s ys tem int egrit y.2.
Visual InspectionMechanicalElectrical
Tire pres s uresTire/W heel damageTire l ow pres s ure s ens or i nst all at ion/damageFront i ni ti ator ins t al lat ion/damageRear init iat or ins tall ati on/damage
Fus esCent ral Junct ion Box (CJB)Electrical connect ors /harnes s esRF receiver (TPMS recei ver)
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. If t he caus e is not vis ually evi dent , check for Di agnos ti c Trouble Codes (DTCs) and refer t o t he DTC Index.4.
DTC Index
• NOTE: If the control modul e or a component i s s us pect and the vehicle remains under manufacturer warrant y, refer t o theW arranty Pol icy and Procedures manual (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 fi ve digit codes . Mat ch the five di git s from t hes can tool to the firs t fi ve di git s of the seven digi t code l is ted to ident ify t he faul t (t he las t t wo digi ts gi ve ext rainformat ion read by the manufact urer-approved diagnost ic s ys tem).
• NOTE: W hen performing volt age or res is t ance t est s , always use a digi tal mult imeter (DMM) accurat e t o t hree deci malplaces and wit h a current cal ibrat ion cert ificate. W hen tes ti ng res i st ance, always take the res is tance of the DMM l eads i ntoaccount.
• 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: 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 .
• NOTE: Tire Pres s ure Moni tor Syst em DTCs will be logged in t he Central Junct ion Box (CJB).
DT CDescriptionPossible CauseAction
B118251Ti re Press ure Monit oring Sys tem(TPMS) - Not ProgrammedTPMS module inTrans port /Fact ory modeEnt er TPMS modul e i nt o cus tomer modeus i ng manufact urer approved diagnost icsys temC1A5616Front Left W heel Module - ci rcuitvolt age below t hres hold (lowbat tery)
Siemens i nternal algori thmIns tal l a new module as required
C1A5686Front Left W heel Module - s ignali nval id (out of range)Siemens i nternal algori thmIns tal l a new module as required
C1A5693Front Left W heel Module - nooperat ion (los t s ens or)Siemens i nternal algori thmIns tal l a new module as required
C1A5711Left Front Init iat or - short togroundLeft front ini ti at or circuit -s hort t o groundRefer to el ect ri cal circui t diagrams andcheck left front i nit iator circui t for s hort t oground
C1A5712Left Front Init iat or - short topowerLeft front ini ti at or circuit -s hort t o powerRefer to el ect ri cal circui t diagrams andcheck left front i nit iator circui t for s hort t opower
C1A5713Left Front Init iat or - open ci rcuitLeft front ini ti at or circuit -open circuitRefer to el ect ri cal circui t diagrams andcheck left front i nit iator circui t for openci rcuitC1A5816Front Ri ght W heel Module - ci rcuitvolt age below t hres hold (lowbat tery)
Siemens i nternal algori thmIns tal l a new module as required
C1A5886Front Ri ght W heel Module - si gnali nval id (out of range)Siemens i nternal algori thmIns tal l a new module as required