Can You Drive a Land Rover with a Faulty DC-DC Converter? You’re driving your MHEV Land Rover, and the ‘Charging System Fault’ light comes on. Your destination is still a few miles away. The big question is: can you make it? The short answer is: not for long, and it’s a very bad idea. What’s […]
How to Replace a Land Rover MHEV DC-DC Converter: A Technician’s Overview Disclaimer: This guide is for trained automotive professionals. Working on a 48V MHEV system carries risks. Always follow official workshop procedures and safety guidelines. SX-Tool is not liable for damage or injury. Replacing the 48V to 12V DC-DC converter (also known as the […]
Don’t Order the Wrong Part: How to Find the Right MHEV DC-DC Converter Part Number Replacing the 48V to 12V DC-DC converter on your Land Rover MHEV requires one thing above all else: the correct part number. While many converters look similar, installing the wrong one can result in incompatibility and a failed repair. Here‚Äôs […]
How Your Land Rover MHEV Works: The 48V System Explained Many new Land Rover models feature MHEV technology, which stands for Mild Hybrid Electric Vehicle. It’s a clever system designed to improve efficiency and performance, and it all revolves around a 48V electrical architecture. Let’s break it down. The Three Key 48V Components The 48V […]
Decoding Land Rover DC-DC Converter Fault Codes (DTCs) When a technician connects a diagnostic scanner to your MHEV Land Rover with a charging fault, they’re looking for specific Diagnostic Trouble Codes (DTCs) stored in the Generator Control Module (GCM) or Powertrain Control Module (PCM). These codes provide clues to the root of the problem. Here […]
What is a JLR TCU and Why Does it Matter? As modern Jaguar and Land Rover vehicles become more connected, one module stands out as the central hub for all external communication: the Telematics Control Unit (TCU). But what exactly is it, and what does it do? This guide breaks down this essential component. What […]
Is Your JLR’s Connectivity on the Fritz? 5 Signs of a Failing TCU When the Telematics Control Unit (TCU) in your Jaguar or Land Rover starts to fail, the symptoms can range from minor annoyances to critical safety warnings. Recognizing these signs early can help you diagnose the problem correctly. Here are the five most […]
Dealing with the JLR “SOS System Inactive” Warning: Your Complete Guide The “SOS System Inactive” warning light is one of the most common‚Äîand concerning‚Äîfaults to appear on a modern Jaguar or Land Rover dashboard. It indicates a serious problem with the vehicle’s emergency communication system. This guide explains what it means and how to fix […]
JLR’s 3G Shutdown: How a TCU Upgrade Can Save Your Connected Features As cellular carriers around the world phase out their 3G networks, owners of many older (typically pre-2018) Jaguar and Land Rover vehicles are discovering their connected features have stopped working. This isn’t a fault with your car, but rather technological obsolescence. The good […]
Used vs. New JLR TCU: Why a “Bargain” Part Will Cost You More When faced with a faulty Telematics Control Unit (TCU) and the associated repair bill, it can be tempting to search for a used part on eBay or from a salvage yard. While the initial price may look attractive, buying a used JLR […]
