🧭 Introduction: Why Land Rover Owners Are Seeing “Key Not Found” or “No Start”
Modern Land Rover and Range Rover models rely heavily on electronic immobilizer systems — mainly the KVM (Keyless Vehicle Module) and RFA (Remote Function Actuator).
When either of these modules fails or loses synchronization with your smart key, you’ll often see messages like:
❌ “Smart Key Not Found”
❌ “Press Brake to Start” (but nothing happens)
❌ “Key Not Recognized”
These symptoms often lead to no-start conditions that can leave the vehicle stranded.
🔍 Common Causes of Land Rover No-Start or Key Detection Issues
- KVM / RFA Module Corruption – The most frequent cause. Internal memory corruption or failed flash can cause the module to lose pairing with existing keys.
- Key Data Loss – Dead batteries or improper jump starts can desynchronize key data stored in the KVM.
- Water Damage or Shorted Wiring – The KVM module is often located in moisture-prone areas (such as under the rear seat or trunk floor).
- Attempted Programming Gone Wrong – Incorrect tool use (aftermarket programmer) can corrupt EEPROM data or partial-erase the KVM, making the keys unreadable.
🧠 How ECUMedics Diagnoses & Repairs the Problem
At ECUMedics, we specialize in mail-in electronic repair and cloning of Land Rover and Jaguar security modules.
Our process includes:
- ✅ Full KVM data extraction & integrity check
- ✅ EEPROM and Flash verification to identify corrupted sectors
- ✅ Key testing to confirm if your smart key transponder is still active
- ✅ Cloning or re-synchronization of your original KVM or RFA module
- ✅ Return ready to plug & start — no dealer reprogramming required
Whether you have a Range Rover Sport, Velar, Evoque, or Discovery — if it says “Key Not Found,” our lab can help.
🛠️ What You Can Mail In
We accept the following for service:
- Your KVM or RFA module
- One or more original or replacement keys
- (Optional) Vehicle VIN and brief description of the issue
Once received, our technicians bench-test the components, clone the data as needed, and return them pre-paired.
🚀 Why Choose a Mail-In Service Instead of a Dealer Visit
| Dealer Visit | ECUMedics Mail-In Service |
|---|---|
| Requires vehicle on site | Ship only your module + key |
| Re-programming can cost $1,000+ | Typically under $300–$500 |
| May replace modules unnecessarily | We repair & clone your existing one |
| Limited diagnostic time | Dedicated bench-level analysis |
🧭 Supported Models
We support most Land Rover & Jaguar models with smart keys, including:
- Range Rover Sport / L494
- Range Rover L405
- Discovery 4 / 5
- Evoque
- Velar
- Jaguar XF, XJ, XE, F-Type
💡 Tip for Technicians
If you’re a shop diagnosing these vehicles:
- Always verify 12V and CAN communication to the KVM before assuming failure.
- If key data reads as blank or corrupted on scan tools — stop and send the module before further attempts.
ECUMedics can often recover lost data and avoid total immobilizer resets.
📨 How to Get Started
- Visit our service page here:
👉 Land Rover / Jaguar KVM Key Programming & Cloning - Select your service type (key test, programming, or full KVM clone).
- Follow the mail-in instructions at checkout.
- We’ll handle the rest — testing, repairing, and returning your module ready to start your vehicle.
⚠️ Important Disclaimer
This service is intended for legitimate repair or replacement purposes only. ECUMedics does not bypass or remove immobilizer systems — all work is performed in compliance with security and data-protection standards.
Still stuck with “Key Not Found”?
👉 Mail in your KVM or RFA module today — we’ll test and repair it within 24-48 hours.