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 […]
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 […]
A Technician’s High-Level Guide to JLR TCU Replacement Disclaimer: This guide is intended for professional automotive technicians or highly experienced DIYers with access to JLR-specific diagnostic tools. This is a complex procedure. SX-Tool is not liable for any damage or injury resulting from improper procedures. Replacing a Telematics Control Unit (TCU) in a Jaguar or […]
A Simple Mistake, A Big Headache: Finding the Correct JLR TCU Part Number Ordering a new Telematics Control Unit (TCU) for your Jaguar or Land Rover should be a straightforward process, but one small mistake can lead to big problems: ordering the wrong part number. This guide will show you how to ensure you get […]
JLR Retrofit: Why the TCU is a Critical Part of an InControl Upgrade Upgrading an older Jaguar or Land Rover’s infotainment system‚Äîfor example, from the basic InControl Touch to the more advanced InControl Touch Pro with Apple CarPlay‚Äîis a popular but complex modification. While most people focus on the new screen and head unit, a […]
The SX-Tool Ecosystem: Which JLR Engineering Tool is Right For You? (2025 Guide) In the world of modern Jaguar Land Rover service, there are two realities. The first is the official JLR-sanctioned path: a walled garden of expensive subscriptions, proprietary hardware, and restrictive software that blocks you from using cost-effective used parts. The second is […]
Top 5 JLR Diagnostic & Programming Tools for Professionals (2025 Review) Working on a modern Jaguar or Land Rover is like performing surgery on a billion-dollar satellite. These are no longer just mechanical beasts; they are rolling data centers with dozens of interconnected modules, complex security protocols, and a network architecture (DoIP) that can bring […]
Don’t Buy New: An Independent’s Guide to Programming Used JLR Modules That dreaded phone call from the parts department: “The module is on backorder for six weeks, and it’s $2,500.” For any independent JLR workshop, this is a business killer. But what if you could bypass this entire system? Welcome to the profitable world of […]
JLR DOIP Explained: The Guide Every Independent Workshop Needs for 2017+ Vehicles You connect your trusty diagnostic tool to a 2019 Range Rover Sport, and… nothing. Or maybe you can only see the engine and transmission modules. You can’t read the BCM, you can’t access the infotainment, and you certainly can’t program anything. What’s going […]
