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Car and van diagnostics from £65 at our Stourbridge workshop, serving Dudley, Halesowen, Birmingham and the West Midlands. We investigate warning lights, no-start faults, ECU, ABS, airbag and vehicle electrical problems. Selected mobile visits are available by separate quotation.
Stourbridge workshop from £65 · Mobile visits quoted separately · Call 0121 517 1859
Modern vehicle faults can involve several linked control modules, sensors, power supplies and communication networks. We combine full-system scanning, live data and targeted electrical testing to identify the likely cause before recommending ECU programming, coding, component repair or replacement.
We start with the symptoms and repair history, then select suitable tests for the vehicle. After assessment, we explain which findings are confirmed, which require further investigation and whether repair, coding or programming is appropriate. A fault-code scan alone does not guarantee a diagnosis.
✓Engine, ECU, gearbox, ABS, ESP and airbag diagnostics
✓Battery, alternator, charging and electrical-system testing
✓Immobiliser, key recognition, BCM and BSI investigation
✓Mobile car and van diagnostics across Birmingham and the West Midlands
Workshop diagnostics start from £65 when your vehicle is brought to SG-Tronic Motorsport at Unit 3 Glass Court, 70 Hayes Lane, Stourbridge DY9 8QT. We assess reported symptoms, relevant fault codes, live data and the systems involved before recommending repairs. The final price depends on the vehicle, systems tested and diagnostic time. Mobile call-outs are not included in the £65 workshop starting price; advanced electrical testing, programming and repairs are quoted separately.
A diagnostic trouble code is a starting point—not automatic proof that a component has failed. We review module communication, live values, voltage supply and supporting evidence before advising the next repair or programming step.
Engine warning lights, poor running, misfires, crank-no-start faults, sensor plausibility, fuelling, boost and ECU communication checks. Where replacement fuel injectors need configuration, see our injector coding and programming service.
Wheel-speed signals, ABS hydraulic-unit faults, steering-angle data, stability control and traction-control warning investigation.
Airbag warning lights, restraint-controller faults, seat and buckle circuits, crash-data context and module communication testing.
Manual and automatic gearbox fault assessment, transmission codes, live data, selector information, clutch adaptation and controller communication.
DPF soot and pressure information, regeneration history, temperature sensors and related engine conditions assessed before repair decisions.
Key recognition, security status, crank-no-start symptoms and communication between the immobiliser, body module and engine ECU.
Our Stourbridge workshop provides car and van diagnostic services by appointment, including engine management warning-light diagnosis, vehicle fault finding, non-start investigation, ABS or airbag warnings, battery and charging faults, and ECU communication problems. A diagnostic scan is only the starting point: fault codes are checked against live vehicle data and targeted tests rather than treated as proof that a component needs replacing.
Drivers from Dudley, Halesowen, Brierley Hill, Kingswinford, Birmingham and nearby West Midlands towns can request a workshop appointment. If the vehicle cannot be driven safely, ask about the suitability and cost of a mobile visit before attempting to bring it to the workshop. See our workshop and mobile service coverage.
Body and access modules control multiple electrical functions and communicate across CAN, LIN and manufacturer-specific networks. We test communication, power, grounds, fault memory, live data and related circuits before recommending coding, cloning or replacement.
Body Control Module testing for central locking, lighting, windows, wipers, alarm functions, network communication, water damage and replacement-module faults.
BCM services →Peugeot, Citroën and DS Body Systems Interface diagnosis for non-start, key recognition, electrical functions, configuration, power-management and communication faults.
BSI services →Ford Generic Electronic Module investigation for body-electrical operation, locking, lighting, wipers, retained faults, module communication and replacement coding requirements.
GEM coding →Mercedes-Benz Signal Acquisition Module checks for fuse and relay control, lighting, convenience functions, CAN communication, moisture damage and front or rear SAM faults.
SAM coding →Renault UCH body module diagnosis for immobiliser communication, locking, indicators, wipers, lighting, key recognition and vehicle-network problems.
UCH services →BMW and MINI Footwell Module testing for windows, mirrors, exterior lighting, indicators, short-circuit counters, lost communication and corrupted software.
FRM programming →BMW Car Access System checks for key recognition, terminal status, steering lock, start authorisation, immobiliser synchronisation and ECU communication.
CAS and immobiliser services →Jaguar and Land Rover Keyless Vehicle Module diagnosis for smart-key recognition, passive entry, start authorisation, security communication and replacement-module setup.
KVM and key services →Low voltage and unstable power supplies can create misleading fault codes across several modules. Depending on the symptoms, we can investigate battery condition, charging voltage, alternator performance, voltage drops and CAN/LIN communication. For more complex wiring, intermittent supply or battery-drain problems, see our auto electrical diagnostics service.
Battery state, cranking voltage and alternator charging behaviour assessed against the symptoms.
Engine, ABS, ESP, airbag, battery, gearbox, DPF and other warnings scanned and investigated.
Live data, actuator tests and module status can help reproduce intermittent or condition-dependent faults.
A multi-module scan provides a broader view of stored, current and communication-related faults.
We record symptoms, warning lights, repair history and the conditions in which the fault occurs.
Compatible control modules are checked for stored, pending, historic and communication fault codes.
Relevant sensor values, module states and network data are compared with expected operation.
Electrical or functional checks are performed where access, safety and the initial results require them.
We outline the evidence found and recommend further investigation, repair, coding or programming as appropriate.
Specialist fault finding for supported vans, motorhomes, campervans, motorcycles and scooters in Stourbridge, with selected mobile visits across Birmingham and the West Midlands. Diagnostics may include ECU fault codes, live-data checks, electrical and charging faults, ABS, immobilisers, engine management and vehicle networks where compatible.
Motorhomes and campervans are assessed primarily through their base-vehicle systems, not gas, water or habitation appliances. Motorcycle and scooter coverage depends on make, model, ECU protocol and safe access. Send your vehicle details before travelling; specialist vehicle diagnostics and mobile call-outs are quoted individually.
Engine ECU, DPF, AdBlue, EGR, starting, immobiliser, ABS, battery and electrical fault finding for compatible light commercial vans, including fleet and delivery vehicles.
Base-vehicle engine management, ECU, emissions, ABS, charging, instrument-cluster and electrical faults on supported motorhome chassis such as Fiat Ducato and Mercedes Sprinter. Habitation appliances are excluded.
Electronic fault diagnosis for compatible campervans and van conversions, including VW Transporter, Ford Transit and other supported platforms. Engine, starting, sensors, charging and vehicle-network checks.
Supported pickup ECU, 4x4 control, gearbox, ABS, airbag, immobiliser, emissions and body-module fault investigation; vehicle compatibility checked before appointment.
Engine-management warning lights, fuel injection, ignition, charging, ABS and immobiliser or ECU communication faults on supported motorcycles. Diagnosis depends on manufacturer and model-year coverage.
Fault-code and electrical checks for compatible petrol or electronically controlled scooters, including fuel injection, starting, battery charging, key systems and engine warning lights where fitted.
Compatibility check Send vehicle registration or VIN (where applicable), make, model, year, engine size, diagnostic symptoms and any fault-code screenshots. We confirm support, appointment method and the quotation before booking; availability varies by ECU system and vehicle type.
Mobile car diagnostics and vehicle fault finding are available by arrangement in Birmingham and the West Midlands, including Harborne, Edgbaston, Stourbridge, Dudley, Halesowen, Wolverhampton, Walsall, Solihull, West Bromwich, Sutton Coldfield, Kidderminster, Bromsgrove and surrounding areas. We confirm whether the reported symptoms are suitable for on-site assessment before quoting the separate mobile visit charge.
Mobile diagnosis is best suited to faults that can be tested safely at the vehicle. Complex electrical faults, extended circuit testing, module removal, controlled power-supply work or programming may be continued at our Stourbridge workshop after the initial assessment.
A mobile appointment starts with your vehicle symptoms and suitability for on-site testing. When safe and supported, checks can include electronic fault-code scans, live data, battery and charging voltage, module communication and targeted electrical tests. Scanning alone does not always identify the failed component.
Provide the vehicle registration, make, model, engine, warning lights and a clear description of the fault. We confirm whether mobile attendance is technically suitable.
Access to the vehicle and safe working conditions are required. Some intermittent faults need further testing or road-test conditions not available at the appointment location.
We explain the evidence and recommend further repair, programming or workshop diagnostics where required. Mobile visits are quoted separately from the £65 workshop diagnostic starting price.
Request a mobile diagnostic quote See a Birmingham mobile diagnostics case study
Our Vauxhall diagnostics case study documents an on-site visit in Birmingham, with photographs of the vehicle, diagnostic equipment and warning-light checks. It shows the investigation process, not a guaranteed repair result.
For a similar no-start fault, electrical problem or warning light, share the vehicle registration, postcode, symptoms and any existing fault codes. We will confirm whether a workshop appointment or a separately quoted mobile visit is suitable.
View the Vauxhall diagnostics case studyOur mobile diagnostic service is aimed at finding evidence before parts are replaced. Where the vehicle and location allow, we can combine a full-system scan with live data, voltage checks and targeted electrical testing, then explain whether the next step is repair, coding, programming or workshop investigation.
Engine ECU fault memory, sensor plausibility, boost and fuelling data, misfire information, DPF and emissions context assessed against the reported symptoms.
Battery voltage, start authorisation, key status, ECU and body-module communication, power supplies and related security data checked before ECU or immobiliser work is recommended.
Repeated flat batteries, unstable charging, multiple warning lights and lost-module communication can be investigated with voltage, ground and vehicle-network checks where appropriate.
Swirl flap actuator fault codes, intake manifold runner problems, rough running and loss of low-speed response can have different causes. We assess the ECU fault history, intake actuator control, linkage movement, electrical connections and carbon build-up where inspection is appropriate.
The findings help determine whether the next step is intake manifold cleaning, actuator repair, compatible replacement or further ECU testing. Software adjustments are considered only if technically appropriate and legally permitted; they are not a substitute for fixing a mechanical defect.
Request engine fault diagnosticsWe scan the relevant modules, review current and historic faults, compare live data and check the conditions in which the warning appears before recommending parts or programming.
Testing can include battery voltage, engine-speed signal, fuel and sensor data, ECU communication, immobiliser authorisation and power or ground checks to separate a control-system fault from a mechanical problem.
We check battery and charging stability, CAN/LIN communication, module power supplies, grounds and network fault patterns before deciding whether coding, repair or replacement is appropriate.
MULTI-BRAND CAPABILITY
Diagnostic support is available for many petrol, diesel, hybrid cars, vans, pickups and light commercial vehicles, including Audi, Volkswagen, SEAT, Škoda, BMW, MINI, Mercedes-Benz, Ford, Vauxhall, Peugeot, Citroën, Renault, Fiat, Jaguar, Land Rover, Volvo, Toyota, Nissan, Hyundai and Kia.
Exact test capability depends on model, year, diagnostic protocol and safe access to the vehicle.
Petrol, diesel & hybrid
Light commercial
ECU, ABS, Airbag & more
Compatibility for car and van diagnostics depends on model year, diagnostic protocol, controller manufacturer and safe access to the vehicle. We confirm the vehicle details and reported symptoms before booking so the correct equipment and service method can be prepared.
In-vehicle fault diagnosis takes place at our Stourbridge workshop or through suitable mobile appointments arranged separately. Customers elsewhere in the UK can enquire about postal ECU and control-module programming or online tuning files where the module and service are compatible.
Postal or online services cannot replace physical diagnosis on the vehicle. Send vehicle details, fault symptoms and clear module-label photographs before shipping any unit.
If your engine management light is on, your car loses power, struggles to start or displays an ABS, airbag or gearbox warning, the next step is fault finding rather than replacing parts by guesswork. SG-Tronic Motorsport offers diagnostic checks at its Stourbridge workshop, supporting drivers from Birmingham, Dudley, Halesowen and the West Midlands.
We investigate symptoms using suitable diagnostic equipment and targeted checks. A scan result alone is not a repair diagnosis: the cause might be an electrical fault, mechanical component, sensor or control module. We explain the findings and relevant options before additional work is agreed.
People searching for car diagnostics near me, diagnostic garages near Birmingham or a garage for engine warning light checks often need to identify the cause before arranging a repair. Workshop diagnostics are available in Stourbridge for supported vehicles, with any separately offered mobile diagnostic appointment quoted and arranged according to suitability.
No. The £65 starting price is for workshop diagnostics at our Stourbridge premises. Mobile diagnostic visits are quoted separately according to location, vehicle, symptoms and the testing required. Please request a quotation before booking.
Not always. Where access and safety allow, mobile checks can cover supported electronic systems, live data and basic electrical tests. Complex wiring, module removal, extended testing and some programming work may need workshop equipment.
The service can include a multi-module scan, warning-light and fault-code review, live-data analysis, module communication checks and targeted electrical or functional testing where appropriate. The exact process depends on the symptoms and vehicle.
Yes, supported ABS, ESP, traction-control, airbag/SRS, engine ECU and automatic transmission TCM or TCU systems can be scanned and assessed. Further circuit or component testing may be required before confirming the cause.
Mobile appointments are available by arrangement across Birmingham and the West Midlands, including Harborne, Edgbaston, Stourbridge, Dudley, Halesowen, Wolverhampton, Solihull and surrounding areas, subject to safe access and technical suitability.
Not always. A trouble code identifies the system and conditions in which a problem was detected; it does not automatically prove that the named component is defective. Live data, power, ground, wiring and functional tests may also be necessary.
Yes. Depending on the vehicle and symptoms, testing can include battery and charging voltage, ECU and body-module communication, immobiliser authorisation, power and ground checks, CAN/LIN network faults and relevant live data.
Yes, supported vans, pickups and light commercial vehicles can be diagnosed for engine management, DPF and emissions, ABS, airbag, immobiliser, charging, electrical and control-module faults.
Please send the registration or VIN, vehicle make and model, engine details, dashboard warning-light photos, fault codes if available, a description of the symptoms and the Birmingham or West Midlands postcode where mobile attendance is required.
For compatible motorhomes and campervans, we can assess base-vehicle engine ECU, warning lights, emissions, charging, starting and other electronic systems. Please provide the chassis or base-vehicle details first. Habitation appliances, LPG and water systems are not part of routine vehicle diagnostics.
Selected motorcycles and scooters can be checked for engine management, fuel-injection, charging, immobiliser, ABS and related electronic faults, subject to make, model, year and diagnostic protocol support. Contact us with your vehicle details before booking.
The advertised £65 starting price applies to eligible workshop car and van diagnostics. Motorhome, campervan, motorcycle and scooter work may need an individual quotation. Mobile appointments are always quoted separately.
SG-Tronic Motorsport provides supported car and van diagnostics at its Stourbridge workshop for motorists from Birmingham, Dudley and surrounding West Midlands areas. Mobile diagnostic checks may be available separately by arrangement, subject to suitability and quotation.