BCM, BSI & UCH Cloning UK: Replacing a Body-Control Module

A replacement body-control module may need vehicle-specific information from the original unit. This GEM service covers supported body-control, configuration and security data transfer between a readable BCM, BSI or UCH and a compatible donor.

Choosing between repair and transfer

The cloning product is intended for a replacement-module route. If you want the original module assessed for an internal fault and returned after supported repair, the separate BCM/BSI/UCH testing product has different requirements and does not normally need a donor.

Identify the module before ordering

BCM, BSI and UCH are grouped in this shop category, but the grouping does not make them interchangeable. Confirm the actual unit and both labels, rather than ordering a replacement solely because it has the same broad name.

Two modules are required

Send your original BCM, BSI or UCH and a compatible donor/replacement unit. The cloning price covers labour for the advertised procedure; it does not include a donor. If you need help sourcing one, contact GEM first. Any proposed donor and extra cost must be agreed before purchase.

Compatibility and readable data

Part number, hardware version, processor, memory configuration and the condition of both units affect support. Similar casings or connectors are insufficient. The original must contain readable supported data; water, fire, corrosion, severe PCB damage or previous incorrect programming can prevent a transfer.

How to arrange the postal service

1. Use the product page to check the service scope and current ordering details. Send clear label photographs if compatibility is uncertain.
2. Have both modules removed using the relevant manufacturer procedures by a suitably qualified person.
3. Pack securely in anti-static protection and a strong padded box; protect the connectors. Mark the units ORIGINAL and DONOR and pack them separately. Include your order number, contact details, vehicle information and fault description.
4. Confirm the delivery address and send the parcel using tracked postage. You arrange and pay for inbound delivery.
5. GEM assesses the supplied units and carries out the supported, agreed work. If the required procedure is unsuitable, further action is discussed first.
6. The supplied modules are returned using the applicable return-shipment service. Review return costs and available cover at checkout.

Ask for the current turnaround estimate before posting. Timing depends on module condition, support and workload; no fixed completion date or successful outcome is guaranteed.

What happens after the modules are returned?

Arrange installation and any required vehicle diagnostics, coding or calibration. The agreed bench transfer does not include those tasks or repairs to other vehicle systems. Successfully copying data is not proof that every donor circuit is healthy. Both supplied modules are returned, and additional work requires prior agreement.

UK-wide postal service: all cities, towns and rural areas

You can send a suitable module from anywhere in England, Scotland, Wales or Northern Ireland. Customers in London, Birmingham, Manchester, Glasgow, Cardiff or Belfast use the same postal enquiry process as customers elsewhere in the UK. GEM is based in Birmingham; nationwide coverage means postal module work, not a claim of a local workshop or mobile visit in every city. Confirm compatibility and delivery details before dispatch.

Can I send only a replacement module?

Not for this original-to-donor cloning procedure. GEM needs the original supported data source as well as the compatible donor. Confirm the scope before sending a unit if the original has been lost or cannot be read.

Read the service terms and conditions alongside the product listing.

View the service and arrange your order

Check the current price, compatibility requirements and full service terms before ordering. This is work on customer-supplied electronics; the photographed module is not a replacement unit for sale.