Similar units can be confused if their roles and histories are not clearly recorded. The recipient needs to know which is original, which is a proposed replacement and what work is requested for each.
Use separate identification
Photograph labels, assign clear job references and package units individually using the recipient’s instructions. Do not mark over original identifiers. Include the vehicle reference and supported data records without unnecessary personal information.
Ask the specialist to confirm receipt and identity before work proceeds. Avoid describing the pair only as old and new if one has already been swapped previously. Clear traceability helps prevent an incorrect data operation or a repair report being associated with the wrong physical unit.
Need help with this fault?
- Repair Enquiry for a Vehicle Already Dismantled
- What to send for a second opinion on an ECU diagnosis
Browse this collection or prepare a vehicle and module enquiry. Tell us about the vehicle, the fault and any tests already done. Contact our Didcot workshop before travelling or posting a module. Visits are by appointment.
