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 […]
Top 5 Mistakes That Will Brick a JLR Module (And How to Avoid Them) It’s a feeling every technician knows and dreads. The progress bar freezes at 78%. The laptop becomes unresponsive. The car is completely dead. This is the moment a simple programming job turns into a catastrophic, multi-thousand-dollar nightmare. A “bricked” module is […]
Case Study: How We Programmed a Used JLR KVM Module in Under an Hour “Smart Key Not Found.” It’s a message that spells doom for a JLR owner and a massive headache for the repairing workshop. When a Keyless Vehicle Module (KVM) fails, the vehicle is completely immobilized. This is a real-world story of how […]
JLR Pathfinder on Steroids: 5 Engineering Functions SX-Tool Unlocks If you’re an independent JLR specialist, you know that having a Pathfinder subscription is essential. It’s the official gateway to modern diagnostics. But you also know its limits. Pathfinder is designed to enforce dealer policy, not to empower your workshop. It’s powerful, but it plays by […]
