SW256 TCU / Telematics OFF (Tracker Disable)

TCU / Telematics OFF for Jaguar & Land Rover — disable the telematics control unit (the built-in modem/tracker) so the car stops transmitting, for privacy or workshop use. Set via the CCF and coded to your VIN / As-Built over OBD, remote & mobile. Reversible with SW257.

What this activation does

• Turns off the Telematics Control Unit (TCU) — the car’s built-in mobile modem — so it stops sending data, location and connected-services traffic.
• Used for privacy, for vehicles going into storage/workshop, or where the connected services are not wanted.
• Select the entry matching the TCU fitted so it is disabled cleanly. Fully reversible with SW257. Coded to your VIN / As-Built.

Choose the option that matches your vehicle

Key terms explained

• TCU (Telematics Control Unit): The car’s built-in mobile modem. It handles connected services, emergency call and remote app features — and is what a tracker uses to report position.
• Telematics OFF: Coding that stops the TCU transmitting, without physically removing it. Reversible.
• CCF (Car Configuration File): The master list of feature flags stored in the vehicle. Setting a value here switches a factory feature on or off. All of these activations are done by editing the CCF, not by fitting parts.
• As-Built: Your vehicle's original factory configuration record, tied to the VIN. Every change is written back against your As-Built so the car stays consistent with JLR records.
• Coded to your VIN: The change is applied to your specific vehicle over the OBD diagnostic port — remote and mobile, no bench work and no new hardware.
• Error / Undefined: Factory enumeration place-holders that exist inside the parameter list. They are not real choices — do not select them. Pick the plain-English option that matches your vehicle.