2010-2019 Jaguar XJ Keyless Module: 'Smart Key Not Found' and Programming Guide
Your guide to diagnosing and replacing the Keyless Vehicle Module (KVM) in your Jaguar XJ, including the critical programming steps required to get your car running again.
- This module is NOT plug-and-play and requires special programming from a Jaguar dealer or specialist with JLR SDD/Pathfinder software.
- A used KVM can be installed, but you MUST confirm with your mechanic beforehand that they have the ability to program a pre-owned module to your vehicle's VIN.
- The most common symptom of failure is a 'Smart Key Not Found' message on the dash, which prevents the car from starting.
- All of your car keys must be present during the programming session to be paired with the replacement module; any keys not present will be disabled.
Symptoms of a Failing Jaguar XJ Keyless Vehicle Module
A failing KVM can cause a range of frustrating issues, often starting intermittently and becoming more frequent over time. The most common sign is a message on the instrument cluster that reads 'Smart key not found' even when the key is inside the vehicle.
- 'Smart key not found' Message: This is the most definitive symptom. The car refuses to start and displays this error on the dashboard.
- Engine Fails to Crank: You press the start button, and nothing happens, or you may hear a single click. The immobilizer, controlled by the KVM, is preventing the engine from starting.
- Intermittent Starting Issues: The vehicle may fail to start on the first few attempts but will then work fine, making the problem difficult to diagnose initially.
- Passive Entry and Lock Failure: The feature that allows you to unlock the doors by touching the handle or lock them by pressing the button on the handle stops working.
- Remote Fob Inoperative: The lock and unlock buttons on the key fob itself may stop working, even after replacing the fob's battery.
Associated OBD-II Codes
A professional scan tool can often find diagnostic trouble codes (DTCs) stored in the vehicle's memory. While a generic code reader may not see these, a more advanced tool can pull codes related to KVM failure. Look for 'B' (Body) or 'U' (Network) codes. A common code is U0214, which indicates a loss of communication with the Remote Function Actuator. Other manufacturer-specific codes may also be present, which a Jaguar specialist can interpret.
Warning: The symptoms of a failing KVM can be very similar to a weak key fob battery or a failing main vehicle battery. Always replace the key fob battery (typically a CR2032) and ensure the main 12V battery is fully charged and healthy before condemning the KVM.
Known Issues, TSBs, and Recalls
While there are no widespread recalls specifically for the KVM on the 2010-2019 Jaguar XJ, Jaguar has issued Technical Service Bulletins (TSBs) related to its function. For example, TSB JTB00468NAS1 addresses situations where the engine fails to crank and a 'Smart key not found' message appears. The cause is identified as a potential 'lock up' of the KVM. The fix often involves a software update using the dealer's diagnostic tool (SDD). In some cases, the bulletin notes that the module itself may need replacement. There are no other major recalls for this specific part, though various electrical and airbag recalls exist for the XJ model range.
Buying a Used Vehicle Access Control Module: What You MUST Know
This is the most critical section for anyone considering this repair. Due to the security-focused nature of this part, you cannot simply swap it like a headlight bulb. This is not a plug-and-play part.
- Programming is Mandatory: Any replacement KVM—whether new or used—must be professionally programmed to your vehicle's VIN. Without this step, the car will not recognize the module, and the engine will not start.
- Confirm Installer Capability: Before buying a used KVM, you MUST speak with your intended installer. Ask them directly: "Can you program a used KVM to my Jaguar XJ?" Many dealerships will only program new modules they supply. Independent specialists and some advanced automotive locksmiths with the correct tools are your best bet.
- Specialized Tools Required: Programming requires access to Jaguar's proprietary software, either SDD (Symptom Driven Diagnostics) for pre-2017 models or Pathfinder for 2017+ models. This is not software your average corner garage will have.
- Used Modules May Be 'Locked': KVMs are often considered 'one-time programmable'. Once programmed to a vehicle, they can be locked. A specialist may need to 'virginize' (wipe) the used module before it can be programmed to your car. Again, confirm your installer can do this.
- All Keys Must Be Present: During the programming process, all of your vehicle's keys must be present. They will be erased from the module's memory and re-paired to the replacement KVM. Any keys not present will no longer work with the car.
Pro Tip: When purchasing a used KVM, match the part number exactly. While several part numbers may supersede or be compatible, an exact match is the safest option. The primary part numbers to look for are AW9319H238AA, C2D14992, C2D3641, and DPLA19H440BB.
Replacement Cost Breakdown
The cost of this repair is dominated by the part and the specialized labor for programming. Physically swapping the module is relatively quick; it's located in the passenger footwell area.
🎬 Watch: Locate the keyless control module in your XJ| Item | Estimated Cost | Notes |
|---|---|---|
| New OEM Module | $310 - $450 | Price from a Jaguar dealership parts department. |
| Used OEM Module | $45 - $100 | Commonly available from online recyclers. |
| Shop Labor (Physical Swap) | $100 - $200 | Typically 0.5 to 1 hour of labor. |
| Programming (Dealer/Specialist) | $200 - $400 | This is a separate charge for the specialized service and can take 1-2 hours. |
| Total (Using New Part) | $610 - $1,050 | |
| Total (Using Used Part) | $345 - $700 | Significant savings, but only if you have a confirmed installer for a used module. |
Frequently Asked Questions (FAQ)
Can I replace the KVM myself to save money?
You can perform the physical swap of the module yourself, which is located behind the passenger footwell cover and is relatively easy to access. However, the vehicle will be completely immobilized and undrivable until it is towed to a facility that can program the module. You cannot start the car after swapping the part until it is programmed.
Do I need to buy new keys when I replace the KVM?
No, you do not need to buy new keys. However, all of your existing keys must be brought to the programming appointment. They will be electronically paired with the new KVM module. Any keys you own that are not present during this process will be permanently de-authorized and will not work with the car anymore.
My keyless entry works, but the car won't start. Could it still be the KVM?
Yes. The KVM has different functions. It's possible for the immobilizer part of the module to fail while the remote locking/unlocking functions still work. The 'Smart key not found' message is the key symptom pointing towards a KVM or related security system failure.
Can a locksmith program a Jaguar KVM?
Some highly specialized automotive locksmiths can. You must call and ask specifically if they have the equipment (like JLR SDD, Pathfinder, Autel IM608, or Abrites) and experience with Jaguar/Land Rover KVM programming. Many locksmiths can only handle older, less complex systems. Do not assume any locksmith can do this job.
Helpful Videos
Technical Specifications
OEM Part Numbers: AW9319H238AA C2D14992 C2D3641 DPLA19H440BB
Also known as Keyless Vehicle Module (KVM) or Remote Function Actuator (RFA). Located in the passenger side footwell area.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Jaguar XJ: