2006 LAND ROVER FRELANDER 2 heater

Publi s hed: 10-May-2011
General Information - Diagnostic Trouble Code (DTC) IndexDTC: Auxiliary
Heater Control Module (AHCM)
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 .
Des cript ion And Operat ion
For a detail ed descripti on of the fuel fi red boost er heat er cont ol s ys tem, refer t o t he relevant Descripti on and Operat ions ect ion i n t he works hop manual .For addit ional informat ion, refer t o: Fuel Fired Boost er Heat er (412-02B Auxi liary Cli mate Cont rol , Des cri pti on andOperat ion).
• NOTE: W here an 'on demand sel f-tes t' i s referred to, t his can be acces s ed via t he 'DTC Moni tor' tab on the manufact urersapproved diagnos t ic s yst em.
DT CDescriptionPossible CausesAction
B1D22-11Coolant TemperatureSens or - circui t shortt o ground
Fuel fired boos t er heatercool ant t emperat ure s ensorint ernal fault
Check and i ns t all a new fuel fi red boost erheat er coolant temperature sensorUsi 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
B1D22-15Coolant TemperatureSens or - circui t shortt o batt ery or open
Fuel fired boos t er heatercool ant t emperat ure s ensorint ernal fault
Check and i ns t all a new fuel fi red boost erheat er coolant temperature sensorUsi 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
B1D23-13Overheat Sens or -circuit openFuel fired boos t er heatercool ant t emperat ure s ensorint ernal fault
Check and i ns t all a new fuel fi red boost erheat er coolant temperature sensorUsi 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
B1D24-11Glow Plug - circui ts hort t o groundFuel fired boos t er heaterglow pl ug int ernal faultCarry 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

DT CDescriptionPossible CausesAction
B1D24-15Glow Plug - circui ts hort t o batt ery oropen
Fuel fired boos t er heaterglow pl ug int ernal faultCarry 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
B1D25-11Heater Fuel Pump -circuit short toground
Heat er fuel pump circui ts hort to groundHeat er fuel pump failure
Refer to the el ect ri cal circui t diagrams andcheck t he fuel fi red boos ter heater fuel pumpand ci rcuit for short to groundRepai r the circui t or check and ins t al l a new fuelfi red boos ter heat er fuel pump as requiredFor addit ional informati on, refer t o: Fuel FiredBoos t er Heat er Fuel Pump (412-02B Auxi li aryClimate Cont rol, Removal and Ins 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
B1D25-15Heater Fuel Pump -circuit short tobatt ery or open
Heat er fuel pump circui ts hort to power, open ci rcuitHeat er fuel pump failure
Refer to the el ect ri cal circui t diagrams andcheck t he fuel fi red boos ter heater fuel pumpand ci rcuit for short to power, open ci rcuitRepai r the circui t or check and ins t al l a new fuelfi red boos ter heat er fuel pump as requiredFor addit ional informati on, refer t o: Fuel FiredBoos t er Heat er Fuel Pump (412-02B Auxi li aryClimate Cont rol, Removal and Ins 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
B1D26-11Combust ion Ai rBlower - circui t shortt o ground
Fuel fired boos t er heatermodule failureUsi 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)If t he diagnost ic troubl e code reoccurs checkand ins tal l a new fuel fired boos t er heatermodul 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
B1D26-15Combust ion Ai rBlower - circui t shortt o batt ery or open
Fuel fired boos t er heatermodule failureUsi 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)If t he diagnost ic troubl e code reoccurs checkand ins tal l a new fuel fired boos t er heatermodul 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
B1D26-92Combust ion Ai rBlower - performanceor incorrectoperati on
Fuel fired boos t er heatermodule failureUsi 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)

DT CDescriptionPossible CausesAction
Check for reoccurrence of t he diagnost ic troubl ecodeIf t he diagnost ic troubl e code reoccurs checkand ins tal l a new fuel fired boos t er heatermodul 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
B1D26-93Combust ion Ai rBlower - nooperati on
Fuel fired boos t er heatermodule failureUsi 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 reoccurs checkand ins tal l a new fuel fired boos t er heatermodul 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
B1D27-11Heater Coolant Pump- circui t short toground
Heat er cool ant pump ci rcuits hort to groundHeat er cool ant pump fail ure
Refer to the el ect ri cal circui t diagrams andcheck t he fuel fi red boos ter heater water pumpand ci rcuit for short to groundRepai r the circui t or check and ins t al l a new fuelfi red boos ter heat er water pump as requi redFor addit ional informati on, refer t o: Fuel FiredBoos t er Heat er Cool ant Pump (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
B1D27-15Heater Coolant Pump- circui t short tobatt ery or open
Heat er cool ant pump ci rcuits hort to power, open ci rcuitHeat er cool ant pump fail ure
Refer to the el ect ri cal circui t diagrams andcheck t he fuel fi red boos ter heater water pumpand ci rcuit for short to power, open ci rcuitRepai r the circui t or check and ins t al l a new fuelfi red boos ter heat er water pump as requi redFor addit ional informati on, refer t o: Fuel FiredBoos t er Heat er Cool ant Pump (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
B1D28-11Fuel Pre-heater -circuit short toground
• 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

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 CausesAction
Check for st ored di agnos ti c troubl e codesCheck for correct operat ion
U3000-16Control Module -circuit vol tage belowt hreshol d
Fuel fired boos t er heatermodule power circuit faultBatt ery/charging sys temfault
Check ot her modules for rel at ed diagnos ti ctroubl e codesIf ot her modul es cont ai n l ow volt age relat eddiagnos t ic t rouble codes, s us pect a commoncaus e (bat t ery/charging s ys tem fault )If not , refer t o t he electrical ci rcuit diagramsand check t he power and ground ci rcuit s to thefuel fi red boos ter heater moduleCheck for st ored di agnos ti c troubl e codesCheck for correct operat ion
U3000-17Control Module -circuit vol tage abovet hreshol d
Charging s ys tem faultFuel fired boos t er heatermodule failure
Check ot her modules for rel at ed diagnos ti ctroubl e codesIf ot her modul es cont ai n high vol tage rel ateddiagnos t ic t rouble codes, s us pect a commoncaus e (bat t ery/charging s ys tem fault )If not , refer t o t he electrical ci rcuit diagramsand check t he power and ground ci rcuit s to thefuel fi red boos ter heater moduleCheck for st ored di agnos ti c troubl e codesCheck for correct operat ion
U3000-43Control Module -s pecial memoryfai lure
Fuel fired boos t er heatermodule failureUsi 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 returnsIns tal l a new fuel fired boos t er heat er modul eas requiredFor 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
U3000-49Control Module -int ernal elect roni cfai lure
Fuel fired boos t er heatermodule failureUsi 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 returnsIns tal l a new fuel fired boos t er heat er modul eas requiredFor 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
U3003-62Batt ery Vol tage -s ignal comparefai lure
There i s a difference ofmore than 2 vol ts bet weenthe power s uppl y t o t he fuelfi red boos ter heater and t hebat t ery volt age val uebroadcas t via t he CAN bus
Check ot her modules for rel at ed diagnos ti ctroubl e codesIf ot her modul es cont ai n volt age relat eddiagnos t ic t rouble codes, s us pect a commoncaus e (bat t ery/charging s ys tem fault )If not , refer t o t he electrical ci rcuit diagramsand check t he power and ground ci rcuit s to thefuel fi red boos ter heater module

DT CDescriptionPossible CauseAction
B10AD-04Rain Sens or - Sys t emInt ernal FailureInternal s ens or fail ureIns t al l a new rain s ens or, refer to newmodule/component i nst all at ion not e at t he top of t heDTC Index
B10AD-09Rain Sens or -Component Fail uresRai n s ens or incorrect lyi nst all edRai n s ens or int ernal fail ure
Check for correct ins tal lati on of rai n s ens or. Ins tall anew s ens or as requi red, refer t o newmodule/component i nst all at ion not e at t he top of t heDTC Index
B10BE-11Solar Sens or - circui ts hort t o groundSunload s ens or circui t -s hort t o groundRefer to electrical ci rcuit diagrams and check s unl oads ens or for s hort t o ground
B10BE-13Solar Sens or - opencircui tSunload s ens or circui t -open circui tRefer to electrical ci rcuit diagrams and check s unl oads ens or for open circuit
B10C0-12Fuel Pump PowerSuppl y - circui t shortt o power
Fuel pump power supplyci rcuit - s hort t o powerRefer to electrical ci rcuit diagrams and check fuel pumppower s upply circui t for s hort t o power
B10C0-14Fuel Pump PowerSuppl y - circui t shortt o ground or open
Fuel pump power supplyci rcuit - s hort t o ground,open circui t
Refer to electrical ci rcuit diagrams and check fuel pumppower s upply circui t for s hort t o ground, open ci rcuit
B10D7-94PATS Key -unexpected operat ionNo res pons e fromt rans ponder i n keyRepl ace key
B10E5-11PCM wake-up si gnal -circui t short to groundEngine Cont rol Module(ECM) wake-up s ignalci rcuit - s hort t o ground
Refer to electrical ci rcuit diagrams and check ECMwake-up s ignal ci rcuit for short to ground
B10E5-15PCM wake-up si gnal -circui t short to poweror open
Engine Cont rol Module(ECM) wake-up s ignalci rcuit - s hort t o power,open circui t
Refer to electrical ci rcuit diagrams and check ECMwake-up s ignal ci rcuit for short to power, open circui t
B10E7-12Igni ti on On Relay -circui t short to powerEJB i gni ti on On relaycontrol ci rcuit - s hort t opower
Refer to electrical ci rcuit diagrams and check EJBignit ion relay control ci rcuit for s hort t o power
B10E7-14Igni ti on On Relay -circui t short to groundor open
EJB i gni ti on On relaycontrol ci rcuit - s hort t oground, open circuit
Refer to electrical ci rcuit diagrams and check EJBignit ion relay control ci rcuit for s hort t o ground, openci rcuit
B10EA-12Posi ti ve t emperaturecoeffi ci ent heat er -circui t short to power
Pos it ive t emperat urecoefficient heater circuit -s hort t o power
Refer to electrical ci rcuit diagrams and check posi ti vetemperat ure coeffici ent heater circui t for s hort t o power
B10EA-14Posi ti ve t emperaturecoeffi ci ent heat er -circui t short to groundor open
Pos it ive t emperat urecoefficient heater circuit -s hort t o ground, openci rcuit
Refer to electrical ci rcuit diagrams and check posi ti vetemperat ure coeffici ent heater circui t for s hort t oground, open circui t
B10EB-77Driver door doubl elocking mot or -commanded pos i ti onnot reachabl e
Incorrect feedback fromDDMCheck for Los t Communicati ons DTCs and carry outass ociated pi npoi nt tes t us ing manufacturer approveddiagnos t ic s ys tem. If no los t communicati on DTC, checkdoubl e locking mechani s m for mechanical fail ureB10EC-77Pass enger doordoubl e l ocking mot or- commanded pos i ti onnot reachabl e
Incorrect feedback fromPDMCheck for Los t Communicati ons DTCs and carry outass ociated pi npoi nt tes t us ing manufacturer approveddiagnos t ic s ys tem. If no los t communicati on DTC, checkdoubl e locking mechani s m for mechanical fail ureB10ED-77Rear door dri ver s i dedoubl e l ocking mot or- commanded pos i ti onnot reachabl e
Incorrect feedback fromrear door dri ver s i deCheck DDM for Los t Communicat ions DTCs and carryout as s oci ated pi npoi nt t es t usi ng manufacturerapproved di agnos ti c s yst em. If no los t communi cat ionDTC, Carry out t he pinpoint t est s as sociat ed t o thi sDTC us ing t he manufacturer approved diagnos ti cs ys t em, check doubl e locking mechanis m formechanical fai lure
B10EE-77Rear door pas sengers ide double l ocki ngmot or - commandedposi ti on notreachabl e
Incorrect feedback fromrear door pas senger si deCheck PDM for Lost Communi cat ions DTCs and carry outass ociated pi npoi nt tes t us ing manufacturer approveddiagnos t ic s ys tem. If no los t communicati on DTC, Carryout the pi npoint t es ts as s oci at ed t o t his DTC us ing themanufacturer approved diagnost ic sys tem, check doublelocki ng mechani sm for mechanical fail ureB10EF-12Sunroof Speed Out put- circui t short topower
Sunroof s peed out putci rcuit - s hort t o powerRefer to electrical ci rcuit diagrams and check s unroofs peed out put circui t for s hort t o power
B10EF-14Sunroof Speed Out put- circui t short toground or open
Sunroof s peed out putci rcuit - s hort t o ground,open circui t
Refer to electrical ci rcuit diagrams and check s unroofs peed out put circui t for s hort t o ground, open ci rcuit
B10F2-12Sunroof cont rol -circui t short to powerSunroof cont rol circui t -s hort t o powerRefer to electrical ci rcuit diagrams and check s unroofcont rol circuit for s hort to power

DT CDescriptionPossible CauseAction
tank unit ci rcuit (Fuel eject s ens or) for s hort to ground.Us ing t he manufacturer approved diagnost ic sys temcheck and ins t al l lat es t relevant l evel of s oft ware t othe central juncti on box and the i nst rument panelcl ust er. If t he level of s oft ware is correct carry out abat t ery resetP1674-00Control ModuleSoft ware Corrupt edA s oft ware as s ert ion fai ledwit hi n t he moduleLoad the l ates t rel evant level of s oftware usi ng t hemanufacturer approved diagnost ic sys tem
U0001-00High Speed CANCommunicati on BusBus O ffCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0010-00Medium Speed CANCommunicati on BusBus O ffCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0100-00Lost Communi cat ionW i th ECM/PCM 'A'Los t communicat ion wit hECMCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0101-00Lost Communi cat ionwi th TCMLos t communicat ion wit hTCMCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0104-00Lost Communi cat ionW i th Speed Cont rolModule
Los t communicat ion wit hs peed cont rol moduleCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0126-00Lost Communi cat ionW i th Steeri ng AngleSensor Module
Los t communicat ion wit hs t eering angle s ens orCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0129-00Lost Communi cat ionW i th Brake Syst emControl Module
Los t communicat ion wit hABS modul eCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0135-00Lost Communi cat ionW i th Different ialControl Module -Front
Los t communicat ion wit hdi fferenti al control modul eCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0155-00Lost Communi cat ionW i th Ins t rumentPanel Cl us t er (IPC)Control Module
Los t communicat ion wit hi nst rument clus t erCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0156-00Lost Communi cat ionW i th Informat ionCenter "A"
Los t communicat ion wit hi nformati on cent erCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0159-00Lost Communi cat ionW i th Parking As s is tControl Module "A"
Los t communicat ion wit hparki ng aid modul eCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0164-00Lost Communi cat ionW i th HVAC ControlModule
Los t communicat ion wit hcl imat e cont rol moduleCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0166-00Lost Communi cat ionW i th Auxi li ary HeaterControl Module
Los t communicat ion wit hauxil iary heat er cont rolmodul e
Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0181-00Lost Communi cat ionW i th Headl ampLevel ling Cont rolModule
Los t communicat ion wit hheadlamp Levell ing controlmodul e
Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0199-00Lost Communi cat ionW i th "Door ControlModule A"
Los t communicat ion wit hDriver Door Modul e (DDM)Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0200-00Lost Communi cat ionW i th "Door ControlModule B"
Los t communicat ion wit hPas s enger Door Modul e(PDM)
Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0208-00Lost Communi cat ionW i th "Seat ControlModule A"
Los t communicat ion wit hPas s enger Seat Modul e(PSM)
Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0214-00Lost Communi cat ionW i th Remote Functi onActuati on
Los t communicat ion wit hRemot e Keyles s Entrymodul e
Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0231-00Lost Communi cat ionW i th Rain Sens ingModule
Los t communicat ion wit hrain sens ing moduleCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0236-00Lost Communi cat ionW i th Column LockModule
Los t communicat ion wit hs t eering column lockmodul e
Carry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0252-00Lost Communi cat ionW i th Lighti ng Cont rolModule - Rear 'B'
Los t communicat ion wit ht rai ler moduleCarry out the as s oci at ed network t es t for this DTCusi ng t he manufact urer approved diagnost ic s ys tem
U0301-00Soft wareIncompati bil it y wit hECM/PCM
ECM dis connect edIncorrect ECM i nst all edCheck el ect ri cal connecti ons to ECM. Check correct ECMis i nst all ed