AUTOMOTIVE ELECTRONICS · UK-WIDE POSTAL SERVICE

Automotive electronics repair across the UK

ECU, TCU and vehicle module enquiries from garages and vehicle owners nationwide. Our workshop is in Didcot, Oxfordshire; suitable electronic modules can be sent to us by post after we confirm the job.

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ECU, TCU, EV and hybrid support for owners and garages

For a difficult electrical fault, send your vehicle details, full scan report and repair history. We can then discuss whether to assess a removed module, book the vehicle into the workshop or work with your garage.

ECU and transmission electronics start with our guides to P2711 DSG gear disengagement, TCU power-supply faults and coding after ECU replacement. We confirm suitability before you send a unit.

EV and hybrid enquiries read the hybrid battery cooling case review and Prius inverter fault-code guide. High-voltage and complete-vehicle assessments require a confirmed appointment at our Didcot workshop; please contact us before arranging transport.

Independent garages across the UK use our ECU, TCU and EV referral checklist to send useful test evidence, or read about J2534 programming preparation. Agree the scope and vehicle support with us before booking.

Illustration of an engine ECU, transmission mechatronic unit and EV inverter beside diagnostic waveforms
An illustration of ECU, transmission and EV electronics.

ECU repair and car electrical diagnostics near Oxford and Reading

Looking for help with a car electrical problem in Oxford, Reading, Abingdon or Wallingford? AXION Automotive is based at Unit 2, Long Wittenham Rd, Didcot, Oxfordshire, OX11 9BH. Contact us with the vehicle details and symptoms to arrange the appropriate workshop assessment or an agreed postal module job.

For non-starting, intermittent power loss, a battery that keeps going flat, wiring faults or modules that will not communicate, start with vehicle electrical fault finding. For a suspected engine controller, use our ECU repair and cloning service. A fault code alone does not establish that the controller needs replacing.

Choose the relevant guide for TCU and DSG electronics, BCM and BSI body modules, or FRM and SAM electronics. If your report calls the unit a BSM or uses another abbreviation, send its full label and the exact diagnostic wording so we can identify the enquiry correctly.

We also welcome key programming and immobiliser enquiries from authorised owners and garages, and EV and hybrid diagnostic enquiries. Vehicle and system support must be confirmed before booking. Complete-vehicle work takes place by arrangement at Didcot; please contact us before travelling from Oxford, Reading or neighbouring towns.

Prepare your assessment details, then request an assessment or call 07440 134303. Include any diagnostic report, previous repairs and whether the fault is constant or intermittent.

Postal ECU, BCM, SAM and TCU enquiries across the UK

You do not need to live near Didcot to ask about a suitable removed-module assessment. We welcome enquiries from Birmingham and the West Midlands, London and the South East, Liverpool and the North West, Glasgow and Scotland, Southampton and the South Coast, and other UK locations. Start by sending the vehicle details, complete part number, symptoms and diagnostic report.

Ask about the identified ECU, TCU, BCM, FRM or SAM unit and the evidence behind the suspected fault. We will establish whether a postal assessment is appropriate for the exact component and requested work. Wiring faults, intermittent vehicle behaviour and work involving other controllers may need an on-vehicle assessment. Ask about programming, coding and immobiliser requirements before removing a unit. EV and hybrid enquiries need an agreed plan for the specific system. Contact us before travelling, dispatching components or booking transport.

Oxfordshire & nearby counties

Didcot, Oxford, Abingdon, Wallingford, Wantage, Harwell, Chilton, Milton, Sutton Courtenay, Long Wittenham, Dorchester-on-Thames, Benson, Goring, Faringdon, Witney, Bicester and Thame. Nearby enquiries also include Reading, Newbury, Swindon, Aylesbury and High Wycombe. Workshop visits and module drop-offs are by arrangement.

West Midlands

Postal ECU, TCU and vehicle module repair enquiries from Birmingham, Coventry, Wolverhampton, Walsall, Dudley, West Bromwich, Solihull, Sutton Coldfield, Tamworth, Nuneaton, Rugby, Warwick, Leamington Spa, Stratford-upon-Avon, Redditch, Kidderminster, Worcester, Hereford, Telford, Shrewsbury, Stafford and Stoke-on-Trent.

East Midlands

Postal automotive electronics enquiries from Leicester, Nottingham, Derby, Northampton, Lincoln, Loughborough, Hinckley, Mansfield, Chesterfield, Kettering, Corby, Wellingborough and the wider East Midlands.

London, South East & East

London, Reading, Milton Keynes, Southampton, Portsmouth, Brighton, Cambridge, Peterborough, Norwich and Ipswich.

South West & Wales

Bristol, Bath, Swindon, Gloucester, Cheltenham, Exeter and Plymouth, plus Cardiff, Newport, Swansea and Wrexham.

North, Scotland & Northern Ireland

Manchester, Liverpool, Chester, Preston, Leeds, Bradford, Sheffield, Hull, York, Newcastle, Sunderland, Edinburgh, Glasgow, Aberdeen, Dundee, Belfast and Derry/Londonderry.

These are examples of areas served through postal enquiries, not additional workshop locations. If your town is not listed, you can still contact us. Delivery options and costs depend on the item and destination.

Choose the service your module needs

ECU repair & cloning

Engine control unit assessment, electronic repair and compatible donor data transfer.

TCU & DSG electronics

Transmission controller and mechatronic electronics assessment, repair and cloning.

BCM & BSI repair

Body control module faults, water damage assessment and compatible data transfer.

SRS module assessment

Airbag control module assessment and supported crash-data services.

Keys & immobiliser support

Vehicle-specific key programming and immobiliser enquiries for authorised owners and garages.

EV & hybrid diagnostics

Discuss the vehicle, symptoms and required diagnostic work with our team before booking.

Module programming

Programming, cloning and adaptation support, subject to module and vehicle compatibility.

Electrical fault finding

Vehicle electrical diagnosis involving wiring, sensors, power supplies and control modules.

Module data recovery

Assessment of recoverable data from damaged or non-communicating automotive electronics.

How to arrange a postal repair

  1. Identify the unit. Send a label photograph, full part number, vehicle details and diagnostic report.
  2. Discuss suitability. Confirm what can be assessed and whether we need the original unit, a donor or the vehicle.
  3. Agree the next step. Confirm the assessment, delivery instructions and any job reference with the team.
  4. Pack and send. Follow our packaging guide and keep your tracking details.

Read the postal repair guide →

UK repair coverage questions

Do you have a branch in my city?

Our workshop is in Didcot, Oxfordshire. We support customers elsewhere through suitable postal module jobs. The cities listed here are service areas, not branch addresses.

Can you collect or repair a vehicle at my home?

Please contact us to discuss the work and location. This page describes our postal module service and does not offer nationwide mobile vehicle repairs.

Can I post an EV battery or complete assembly?

Do not send batteries, high-voltage assemblies or fluid-containing parts without specific instructions and an agreed transport arrangement. Start by discussing the component and fault with us.

Can garages send repeat jobs?

Yes, contact the team with each unit’s identification, symptoms and supporting diagnostics so we can agree the appropriate route for that job.

Read our Google reviews

Find customer feedback for Axion Auto Electronics Repair & Data recovery at our Didcot location. Read the latest reviews and rating directly on Google Maps.

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Browse manufacturers, modules and fault codes

Vehicle manufacturer index · ECU and module identification · Fault-code directory · All repair guides

Start with the part number

Tell us what the vehicle is doing, where you are based and whether you need a postal assessment or a Didcot appointment.

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