If your 2021 Land Rover is still within the New Vehicle Limited Warranty (4 years / 50,000 miles) , code B1D9F11 is covered. Given that 2021 models were sold from mid-2020 through late 2021, many are still under warranty. Do not pay for this repair if you are under 50,000 miles.
Use a diagnostic tool to clear B1D9F11. Then:
Increased cabin noise (due to Active Noise Cancellation being disabled). The code only appearing during a full system scan via the Pathfinder or TOPIx Cloud diagnostic tools. 3. Potential Root Causes Wiring Harness Abrasion land rover b1d9f11 2021
This code often points toward an issue within the or the HVAC/Climate Control systems , specifically relating to communication with the engine or body sensors. Code Component: B1D9F
: Owners often report that the car drives perfectly fine and that this code does not trigger a warning light on the dashboard; it only appears during a deep diagnostic scan. Common Causes & Diagnosis If your 2021 Land Rover is still within
💡 While this code sounds scary (referencing "Engine Speed"), it is almost always an audio/infotainment glitch rather than a mechanical engine failure.
Because this error is strictly tied to the AAM, . Instead, you might notice: Use a diagnostic tool to clear B1D9F11
Demystifying the Land Rover B1D9F11 2021 Fault Code: A Complete Diagnosis Guide
You did some digging and found that this code often lives in the . The amplifier needs to know how fast the engine is spinning to manage "Speed Dependent Volume Control."
