
A diagnostic check is a comprehensive health scan of your vehicle’s essential electronic systems. Using specialist diagnostic equipment connected to your car’s OBD port, our technicians pull detailed information from the engine control unit (ECU) and other modules to identify fault codes and pinpoint issues affecting performance.
This isn’t limited to obvious warning lights — diagnostics can catch faults that haven’t triggered a dashboard alert yet, giving you a clear picture of vehicle health and what needs attention.

Note: If further investigation or specialist diagnostics are required (for example ABS, airbag systems or advanced electrical faults), we will explain any additional costs before proceeding


Consider booking a diagnostic if you notice:


Don’t wait for a small problem to turn into a major repair.
Get your car checked by professionals — contact Fletch’s Customs now for a personalised diagnostic booking and quote

Keep your vehicle performing safely and efficiently with expert vehicle diagnostics from Fletch’s Customs. Using the latest diagnostic tools and professional expertise, we identify issues quickly and accurately before they escalate into costly repairs. Modern vehicles contain dozens of sensors and systems monitored by onboard computers —
Keep your vehicle performing safely and efficiently with expert vehicle diagnostics from Fletch’s Customs. Using the latest diagnostic tools and professional expertise, we identify issues quickly and accurately before they escalate into costly repairs. Modern vehicles contain dozens of sensors and systems monitored by onboard computers — our diagnostic service reads these codes and interprets them so you know what’s really going on under the hood

A diagnostic check uses advanced scanning equipment to communicate with your car’s onboard computer (OBD-II system) to retrieve fault codes and real-time data. This allows our technicians to pinpoint issues within key systems such as:
A diagnostic check uses advanced scanning equipment to communicate with your car’s onboard computer (OBD-II system) to retrieve fault codes and real-time data. This allows our technicians to pinpoint issues within key systems such as:
This thorough assessment reveals hidden or developing faults that may not yet show obvious symptoms, helping you avoid breakdowns and expensive repairs later.

Regular diagnostics can spot problems before they worsen — saving you time and money and keeping you safe on the road
We use modern diagnostic tools that are capable of reading fault codes from all major vehicle systems, giving us detailed insights into every corner of y
Regular diagnostics can spot problems before they worsen — saving you time and money and keeping you safe on the road
We use modern diagnostic tools that are capable of reading fault codes from all major vehicle systems, giving us detailed insights into every corner of your car.
Our team combines deep automotive knowledge with transparent reporting, explaining each fault code and recommendation in plain language.
By addressing small issues early, you can avoid larger mechanical failures down the line — keeping both repair costs and downtime low.
Diagnostics help ensure your engine and other systems are working optimally, which can improve fuel economy and extend your vehicle’s lifespan.