Bring a Locked Tailgate Module Back to Life

The Liftgate Control Module, which JLR also lists as the Tailgate Control Module or TGCM, runs every powered tailgate function on your vehicle. It governs the opening and closing cycles, stores height memory positions, monitors obstacle detection, and controls soft-close operation. The module keeps vehicle-specific data inside its EEPROM memory, including the VIN, calibration parameters, and the security pairing information that binds it to the original chassis.

A donor module from another vehicle will not work in your car. It remains married to its original chassis, and your vehicle rejects the handshake. The tailgate then refuses to open, throws persistent fault codes, or stops responding entirely. The same failure appears when the original module loses its EEPROM data through a voltage spike, water ingress, or an interrupted programming session.

Our BJ32-14B673-AG Virgin EEPROM Data File gives you the clean answer. The file carries validated blank data that resets the module to its factory-unmarried state. You write this data to the module EEPROM with a compatible programmer, then configure the module to your vehicle through JLR SDD. The tailgate then operates as a fully integrated factory component, with every function restored.

The BJ32-14B673-AG variant serves the earlier Jaguar Land Rover powered tailgate generation. It fits Range Rover Evoque L538, Discovery Sport L550 (early production), and several Jaguar models with powered tailgate systems. You must confirm your module part number matches before ordering, because JLR released several hardware revisions across model years.

Why This File Matters for Your Repair

JLR built the liftgate module to protect vehicle security. The EEPROM stores a cryptographic link between the module and the chassis, and the vehicle checks that link every time you press the tailgate button. When the link breaks, the module becomes useless to any other vehicle. The virgin file rebuilds that link from scratch, which lets your diagnostic platform complete a fresh pairing sequence.

This approach saves your customer the cost of a brand-new module from the dealer. A new unit often exceeds several hundred pounds, and fitting it still requires programming time. Our virgin data file renews the used module you already hold, which brings the repair cost down dramatically while restoring identical factory behaviour.

Technical Specifications

How the Virgin EEPROM Process Works

1. Remove and Identify: Take the liftgate control module out of the vehicle and confirm the part number reads BJ32-14B673-AG.
2. Read and Back Up: Connect your programmer to the module EEPROM chip and read the existing data. Store this original file so you can restore it later if required.
3. Write Virgin Data: Write our validated virgin EEPROM file to the module. The module returns to a blank, unmarried state.
4. Refit the Module: Reinstall the module in the vehicle and connect your JLR SDD diagnostic equipment.
5. Configure and Calibrate: Use SDD to configure the module to your VIN, apply the correct calibration values, and complete the anti-theft synchronisation handshake.
6. Verify Function: Cycle the tailgate through several open and close sequences, confirm height memory positions, and check for any stored fault codes.

Why Choose This Virgin EEPROM Data

• Validated Before Delivery: Every file passes checksum verification and structural validation. You write it once and move straight to configuration.
• Beats a Dealer Replacement: A new liftgate module from a JLR dealer often costs hundreds of pounds. Our data file renews a used module for a fraction of that figure.
• Restores Complete Functionality: Once configured, the module runs every powered tailgate function exactly as the factory intended, including height memory and obstacle detection.
• Instant Download: We email the download link immediately after order confirmation, so your repair starts the same day.
• Evoque and Discovery Sport Coverage: The BJ32-14B673-AG variant suits these popular models directly, which saves you the guesswork of finding the right file.
• Technical Support Included: Our JLR specialists answer your questions about the write process and the SDD configuration steps that follow.

Important Technical Considerations

Always back up the original EEPROM data before you write a new file. If the module existing data stays intact, you can restore it later. Once you write virgin data, the module loses its previous configuration permanently unless you keep a backup.

Confirm the module part number before ordering. JLR released several hardware revisions across model years, and the wrong data file may fail to write or produce a non-functional module. Contact us with your VIN if you need us to confirm the correct file for your vehicle.

The final configuration step demands a stable power supply holding 12.5 V or higher throughout the session. A voltage drop during module configuration can corrupt the newly written data and leave the module inoperable. Connect a JLR-approved battery support unit before you begin.

Frequently Asked Questions

Is this a physical module or just a data file?

This listing covers the virgin EEPROM data file only. We deliver it as an instant digital download. You must already hold a compatible BJ32-14B673-AG liftgate control module.

What tools do I need to use this file?

You need an EEPROM programmer compatible with the module memory chip, a soldering or chip-reading setup if your programmer requires direct connection, and access to JLR SDD diagnostic software for the final configuration.

Can I use this file on any liftgate module?

No. This file suits the BJ32-14B673-AG module variant only. Confirm your module part number before ordering. Contact us with your VIN and we will confirm the correct file.

Will the tailgate work straight after writing the file?

No. After writing the virgin data, you must configure the module to your vehicle through JLR SDD. The module needs its VIN, calibration values, and security pairing set before the tailgate operates.

Can I reverse the process if something goes wrong?

Yes, if you back up the original EEPROM data before writing. We always recommend saving the original file. With that backup in hand, you can return the module to its previous state.

Do you offer support during the process?

Yes. Our JLR specialists answer technical questions about the write process, the configuration steps, and any fault codes that appear after installation. Contact us at any point and we will help you resolve the issue.

Order Your Virgin EEPROM Data File Today

Renew a locked or donor liftgate control module with our validated virgin EEPROM data file for BJ32-14B673-AG. You receive instant delivery, a file ready for direct write, and full technical support from our JLR specialists. Restore complete powered tailgate functionality for far less than the cost of a dealer replacement.