2011 Land Rover LR4 Bluetooth Module: Location, Troubleshooting, and Replacement

ByThe Answerlode Editorial Team

Finding the Bluetooth Module on Your 2011 LR4

The Bluetooth module on your 2011 LR4 is located in the right rear cargo area, specifically beneath the cup holder/trinket tray. More precisely, it sits behind the side trim panel where the second row right-side seat belt retracts. The module is part of the vehicle’s MOST (Multimedia Optical System Technology) fiber-optic network that runs your entire infotainment system, which is why access requires partial trim removal rather than opening the dashboard.

Accessing the Module

To find and access it yourself, start unclipping the side trim panel from the tailgate end. Work your way forward, unclipping at the rear and under the side window. Once the trim is loose enough, you can swing the upper section out enough to see the two Torx screws that hold the module in place. The screws sit at the top with locating tabs at the bottom. The module itself is identified by the label AH42 10F845 AA, and its Land Rover part number is LR025843.

Before Replacing: Reset Options

Before you assume the module is dead and needs replacement, several simpler fixes work for many owners. First, try pulling fuses 68, 67, and 64 from the passenger compartment fuse box. Leave them out for a few minutes, then reinstall them. This resets the infotainment system and has restored Bluetooth connectivity for some owners without requiring any part replacement.

If that doesn’t work, try simply unplugging the module from its connector and plugging it back in. The module can become full with paired phone memories and stop being discoverable to new devices. A reconnect sometimes clears this condition. You may also want to check if the phone has too many devices already paired to the LR4 in its Bluetooth memory—deleting old pairings from the phone’s side can help.

Water Damage: A Common Hidden Issue

One reason many 2011 LR4 modules fail is moisture and water damage. The right rear wheel well area and the trim above it can leak in some vehicles, sending water directly into the module’s location. If you open up the trim and find moisture, corrosion, or water stains around the module, water damage is likely the culprit. In that case, replacement becomes necessary, but you should also seal the leak source or you’ll destroy the new module too.

Replacing the Module

If the module genuinely needs replacement, the good news is that it’s a straight swap. The module uses a standard connector, and there is no programming, coding, or BCU (Body Control Unit) configuration needed after installation. You remove the two Torx screws, unplug the old module, plug in the new one, secure it with screws, and you’re done. The module is produced by Ford and is the same or compatible unit used across several Land Rover and Ford models.

Used modules typically run $50–$100 on eBay or specialty parts suppliers. New OEM modules cost more but come with warranty coverage. Many owners use second-hand units successfully since the module is fairly durable if it hasn’t been exposed to water.

Alternative: MOST Bypass Cable

If you want to keep your vehicle on the road while troubleshooting or if module replacement isn’t immediately possible, a MOST bypass cable (search eBay for “Landrover MOST bypass”) can reroute the fiber-optic signal around the dead module for around $12. This lets the rest of your infotainment system continue working while you arrange a replacement.

Module Symptoms to Watch For

A failing Bluetooth module often shows up as the phone being unable to connect even though it sees the LR4 in the Bluetooth list. Sometimes the system shows “unable to connect—make sure the Land Rover connection is in range” even when the car is right there. In some cases, a completely failed module can cause speaker static, frozen touch-screen buttons, or problems with the entire infotainment system since the MOST network is a ring topology—if one node fails, it can affect everything on the loop.

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