{"product_id":"for-land-rover-discovery-4-l319-parking-aid-control-module-ecu-ah42-15k866-bg","title":"For LAND ROVER DISCOVERY 4 L319 PARKING AID CONTROL MODULE ECU AH42-15K866-BG","description":"\u003cp\u003e#76\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine Land Rover Discovery 4 L319 Parking Aid PDC Control Module ECU – AH42-15K866-BG \/ LR024774\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine Land Rover\/JLR used Parking Aid Control Module \/ PDC parking sensor ECU, suitable for selected Land Rover Discovery 4 L319 models equipped with the corresponding factory front and\/or rear parking assistance system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis electronic control module forms the central control unit for the vehicle’s ultrasonic parking sensor system, receiving signals from the parking sensors, processing obstacle-distance information and communicating with the vehicle’s electronic network to provide the driver with parking-distance warnings.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePart Number: AH42-15K866-BG\u003c\/p\u003e\u003cp\u003eAlternative Number: AH4215K866BG\u003c\/p\u003e\u003cp\u003eLand Rover OE \/ Service Number: LR024774\u003c\/p\u003e\u003cp\u003ePart Type: Parking Aid Control Module \/ PDC Module \/ Parking Sensor ECU\u003c\/p\u003e\u003cp\u003eModule Type: PAM – Parking Aid Module\u003c\/p\u003e\u003cp\u003eSystem: Parking Distance Control \/ Parking Assistance\u003c\/p\u003e\u003cp\u003eApplication: Factory Front \/ Rear Parking Sensor System depending on vehicle specification\u003c\/p\u003e\u003cp\u003eVehicle Platform: Discovery 4 \/ L319\u003c\/p\u003e\u003cp\u003eManufacturer: Land Rover \/ JLR\u003c\/p\u003e\u003cp\u003eCondition: Used Genuine Land Rover Part\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCOMPATIBILITY\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLand Rover Discovery 4 – L319\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDirectly documented applications include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Discovery 4 L319 – 2009-2016\u003c\/p\u003e\u003cp\u003e• Discovery 4 \/ LR4 applications\u003c\/p\u003e\u003cp\u003e• Factory parking sensor equipped vehicles\u003c\/p\u003e\u003cp\u003e• Front and rear parking assistance configurations depending on specification\u003c\/p\u003e\u003cp\u003e• Petrol and diesel models where the corresponding parking aid system is fitted\u003c\/p\u003e\u003cp\u003e• Automatic and manual applications depending on vehicle specification\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe exact AH42-15K866-BG engineering number is specifically documented as a genuine Discovery 4 L319 Parking Aid Module. (GlobalParts)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e2010-2011 DISCOVERY 4 \/ LR4 APPLICATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe module is particularly well documented on early Discovery 4 \/ LR4 vehicles.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUsed-module fitment information specifically identifies:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLand Rover LR4 \/ Discovery 4\u003c\/p\u003e\u003cp\u003e• 2010\u003c\/p\u003e\u003cp\u003e• 2011\u003c\/p\u003e\u003cp\u003e• Base applications depending on market\u003c\/p\u003e\u003cp\u003e• HSE applications depending on market\u003c\/p\u003e\u003cp\u003e• Factory PDC \/ parking-distance system\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis makes AH42-15K866-BG a particularly strong reference for an early Discovery 4 equipped with the corresponding parking aid system. (eBay)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eADDITIONAL JLR APPLICATIONS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe AH42-15K866 parking module family is also documented across selected JLR vehicles, including:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRange Rover Sport – L320\u003c\/p\u003e\u003cp\u003e• Selected approximately 2010-2013 applications\u003c\/p\u003e\u003cp\u003e• Factory parking aid equipped vehicles\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRange Rover \/ Range Rover Vogue – L322\u003c\/p\u003e\u003cp\u003e• Selected applications depending on production date and parking system\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eJaguar XJ – X351\u003c\/p\u003e\u003cp\u003e• Related AH42-15K866 parking-module applications are documented\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, different engineering suffixes and software\/configurations exist.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not assume that a Range Rover or Jaguar module is automatically interchangeable with AH42-15K866-BG simply because the central 15K866 engineering number is the same.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTECHNICAL INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe AH42-15K866-BG \/ LR024774 is an electronic controller responsible for managing the vehicle’s ultrasonic parking assistance system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIts functions include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Receiving signals from the ultrasonic parking sensors\u003c\/p\u003e\u003cp\u003e• Processing individual sensor information\u003c\/p\u003e\u003cp\u003e• Calculating proximity to surrounding obstacles\u003c\/p\u003e\u003cp\u003e• Detecting objects within the parking sensor operating range\u003c\/p\u003e\u003cp\u003e• Controlling parking-distance warning operation\u003c\/p\u003e\u003cp\u003e• Communicating parking-system information with other vehicle modules\u003c\/p\u003e\u003cp\u003e• Monitoring the parking sensors for electrical\/system faults\u003c\/p\u003e\u003cp\u003e• Supporting front and\/or rear parking assistance depending on vehicle configuration\u003c\/p\u003e\u003cp\u003e• Communicating through the vehicle electronic network\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWhen an obstacle approaches the vehicle, the ultrasonic sensors transmit information to the parking aid module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe module processes this information and allows the vehicle to provide the appropriate audible and\/or visual parking-distance warning to the driver.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePARKING AID \/ PDC SYSTEM INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe complete Discovery 4 parking assistance system can include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Parking Aid Control Module – AH42-15K866-BG\u003c\/p\u003e\u003cp\u003e• Front ultrasonic parking sensors\u003c\/p\u003e\u003cp\u003e• Rear ultrasonic parking sensors\u003c\/p\u003e\u003cp\u003e• Front bumper sensor wiring loom\u003c\/p\u003e\u003cp\u003e• Rear bumper sensor wiring loom\u003c\/p\u003e\u003cp\u003e• Parking aid switch \/ controls\u003c\/p\u003e\u003cp\u003e• Instrument \/ infotainment warning system\u003c\/p\u003e\u003cp\u003e• Audible warning components\u003c\/p\u003e\u003cp\u003e• CAN communication network\u003c\/p\u003e\u003cp\u003e• Associated body-control electronics\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe exact configuration varies according to model year and vehicle equipment.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eVEHICLE NETWORK INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe parking aid module does not operate independently.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIt communicates with other vehicle electronic systems over the vehicle’s network and uses information from other modules to determine when parking assistance should operate.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis allows the parking system to coordinate with functions such as:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Reverse selection\u003c\/p\u003e\u003cp\u003e• Vehicle ignition status\u003c\/p\u003e\u003cp\u003e• Parking aid activation\u003c\/p\u003e\u003cp\u003e• Vehicle speed information\u003c\/p\u003e\u003cp\u003e• Driver information\/warning systems\u003c\/p\u003e\u003cp\u003e• Other body-control functions\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe AH42-15K866-BG is documented as communicating with the vehicle’s bus architecture while processing signals from the ultrasonic sensors. (Global Parts)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCOMMON SYMPTOMS OF A FAULTY PARKING AID MODULE\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eReplacement may be required due to:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Parking sensors completely inoperative\u003c\/p\u003e\u003cp\u003e• Front and rear parking sensors not working\u003c\/p\u003e\u003cp\u003e• Parking aid unavailable warning\u003c\/p\u003e\u003cp\u003e• Parking system fault message\u003c\/p\u003e\u003cp\u003e• No audible parking warnings\u003c\/p\u003e\u003cp\u003e• Sensors not communicating\u003c\/p\u003e\u003cp\u003e• Intermittent parking sensor operation\u003c\/p\u003e\u003cp\u003e• Multiple parking sensor fault codes\u003c\/p\u003e\u003cp\u003e• Module communication failure\u003c\/p\u003e\u003cp\u003e• Internal electronic failure\u003c\/p\u003e\u003cp\u003e• Corroded electrical connections\u003c\/p\u003e\u003cp\u003e• Water \/ moisture damage\u003c\/p\u003e\u003cp\u003e• Physical damage to the module or connectors\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIMPORTANT DIAGNOSTIC INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA parking aid system failure does not automatically mean the AH42-15K866-BG module is faulty.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore replacement, check:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Individual parking sensors\u003c\/p\u003e\u003cp\u003e• Front sensor wiring loom\u003c\/p\u003e\u003cp\u003e• Rear sensor wiring loom\u003c\/p\u003e\u003cp\u003e• Electrical connectors\u003c\/p\u003e\u003cp\u003e• Module power supply\u003c\/p\u003e\u003cp\u003e• Module ground\u003c\/p\u003e\u003cp\u003e• Relevant fuses\u003c\/p\u003e\u003cp\u003e• CAN communication\u003c\/p\u003e\u003cp\u003e• Parking aid switch\u003c\/p\u003e\u003cp\u003e• Vehicle battery condition\u003c\/p\u003e\u003cp\u003e• Diagnostic fault codes\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA single failed ultrasonic sensor or damaged bumper wiring loom can sometimes disable or significantly affect the operation of the complete parking assistance system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProfessional diagnostic scanning is recommended before replacing the module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWATER \/ MOISTURE DAMAGE INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWater ingress is particularly important when diagnosing JLR parking aid modules.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOwner and repair reports document parking aid modules being damaged by moisture\/water entering the module or its electrical connectors. (FullFatRR)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the original module shows:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Corrosion\u003c\/p\u003e\u003cp\u003e• Green deposits on connector pins\u003c\/p\u003e\u003cp\u003e• Water staining\u003c\/p\u003e\u003cp\u003e• Moisture inside the casing\u003c\/p\u003e\u003cp\u003e• Repeated module failures\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ethe surrounding area should be inspected for the source of the water leak before installing another module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOtherwise, a replacement module may suffer the same damage.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePART NUMBER INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePrimary engineering number:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAH42-15K866-BG\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAlternative formatting:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAH4215K866BG\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLand Rover service\/OE reference:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLR024774\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThese numbers are directly cross-referenced on Discovery 4 L319 parking sensor modules. (GlobalParts)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRELATED \/ ALTERNATIVE MODULE NUMBERS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe wider JLR parking aid module family includes references such as:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAH42-15K866-BE\u003c\/p\u003e\u003cp\u003eAH42-15K866-BF\u003c\/p\u003e\u003cp\u003eAH42-15K866-BG\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRelated JLR service references documented within this module family include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLR012681\u003c\/p\u003e\u003cp\u003eLR020807\u003c\/p\u003e\u003cp\u003eLR021807\u003c\/p\u003e\u003cp\u003eLR024774\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eJaguar applications can also carry related service references including:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eC2D16012\u003c\/p\u003e\u003cp\u003eC2D18207\u003c\/p\u003e\u003cp\u003eC2Z7475\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThese references are documented within the same broader parking-assist module family. (Go-Parts)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, these numbers should not automatically be advertised as direct plug-and-play replacements for AH42-15K866-BG.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eVehicle specification, module software and parking-system configuration can differ.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eENGINEERING SUFFIX INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe engineering number:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAH42-15K866-BG\u003c\/p\u003e\u003cbr\u003e\u003cp\u003econtains an important revision suffix:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBG\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOther visually similar modules can carry suffixes such as:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBE\u003c\/p\u003e\u003cp\u003eBF\u003c\/p\u003e\u003cp\u003eBG\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThere are owner reports of some different suffix versions functioning across similar JLR applications, but this should not be treated as guaranteed OE interchangeability without checking the vehicle configuration. (FullFatRR)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor an eBay listing, the safest approach is to advertise the exact number:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAH42-15K866-BG \/ LR024774\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eINSTALLATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInstallation should be performed according to the appropriate Land Rover workshop procedure.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDuring installation:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Check the replacement module number\u003c\/p\u003e\u003cp\u003e• Inspect the module mounting area for moisture\u003c\/p\u003e\u003cp\u003e• Inspect electrical connectors for corrosion\u003c\/p\u003e\u003cp\u003e• Check connector pins carefully\u003c\/p\u003e\u003cp\u003e• Inspect surrounding wiring\u003c\/p\u003e\u003cp\u003e• Confirm power and ground supplies\u003c\/p\u003e\u003cp\u003e• Secure the module correctly\u003c\/p\u003e\u003cp\u003e• Reconnect all electrical connections\u003c\/p\u003e\u003cp\u003e• Perform a diagnostic scan\u003c\/p\u003e\u003cp\u003e• Clear applicable stored fault codes\u003c\/p\u003e\u003cp\u003e• Test front parking sensors where fitted\u003c\/p\u003e\u003cp\u003e• Test rear parking sensors\u003c\/p\u003e\u003cp\u003e• Confirm audible\/visual warnings operate correctly\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAny source of water ingress should be repaired before fitting the replacement module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePROGRAMMING \/ CODING\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor a like-for-like AH42-15K866-BG replacement, used-part reports indicate that some vehicles accept the replacement without a dealer reset or programming. (FullFatRR)\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, because parking-system equipment can vary between vehicles:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProgramming Required: Vehicle dependent\u003c\/p\u003e\u003cp\u003eConfiguration Required: Vehicle dependent\u003c\/p\u003e\u003cp\u003eDiagnostic Check Recommended: Yes\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA replacement module should not be guaranteed as universally plug-and-play.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWhere the vehicle configuration differs, JLR-compatible diagnostic equipment may be required to check or configure the parking aid system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIMPORTANT COMPATIBILITY NOTE\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore ordering, please compare:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAH42-15K866-BG\u003c\/p\u003e\u003cp\u003eAH4215K866BG\u003c\/p\u003e\u003cp\u003eLR024774\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAlso check:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Vehicle model\u003c\/p\u003e\u003cp\u003e• Vehicle production year\u003c\/p\u003e\u003cp\u003e• Factory parking sensor specification\u003c\/p\u003e\u003cp\u003e• Front \/ rear parking sensor configuration\u003c\/p\u003e\u003cp\u003e• Engineering-number suffix\u003c\/p\u003e\u003cp\u003e• Electrical connectors\u003c\/p\u003e\u003cp\u003e• Connector pin arrangement\u003c\/p\u003e\u003cp\u003e• Module casing\u003c\/p\u003e\u003cp\u003e• Mounting points\u003c\/p\u003e\u003cp\u003e• Existing module label\u003c\/p\u003e\u003cp\u003e• Listing photographs\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not rely solely on “Land Rover Discovery 4 L319” when ordering.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eSeveral revisions of the 15K866 Parking Aid Module were used across Land Rover and Jaguar vehicles.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor the safest replacement, match AH42-15K866-BG \/ LR024774 directly with the original module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCONDITION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUsed Genuine Land Rover \/ JLR Electronic Module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eNormal cosmetic marks, scratches and signs of previous installation may be present.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePlease inspect all listing photographs carefully for the exact label, AH42-15K866-BG identification, connectors, mounting points and overall condition.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAs with any used electronic module, correct vehicle compatibility and diagnosis should be confirmed before installation.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIdeal genuine Land Rover replacement Parking Aid \/ PDC parking sensor control module ECU for a compatible Land Rover Discovery 4 L319.\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Unbranded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e AH42-15K866-BG\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReference OE\/OEM Number:\u003c\/strong\u003e AH42-15K866-BG\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":54992730816839,"sku":"158284364406","price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/1528\/3527\/files\/10_e7b9b00d-acbc-4237-bb46-cae0788cbe10.jpg?v=1789220846","url":"https:\/\/spares4repairs.store\/products\/for-land-rover-discovery-4-l319-parking-aid-control-module-ecu-ah42-15k866-bg","provider":"Spares 4 Repairs","version":"1.0","type":"link"}