Diagnostic Fault Code Check

If a warning light has appeared, your car is running poorly, or you’ve got an intermittent issue that’s hard to pin down, our technicians can help. Best Garages Ltd offers mechanical inspections and plug-in diagnostic testing to identify faults quickly and accurately.

What is a diagnostic check?

A car diagnostic check uses a diagnostic scanner to communicate with your vehicle’s on-board computer. The scanner reads Diagnostic Trouble Codes (DTCs) linked to systems such as the engine, transmission, emissions, ABS, airbags, and more. These codes point us to the area of concern, so we can target the root cause rather than guessing.

How the process works

• We connect the diagnostic tool to your vehicle’s OBD port (typically located under the dashboard)

• The system reads stored fault codes and live data

• Our technician interprets the results alongside a physical inspection and experience

• You receive a clear explanation of the fault and the recommended next steps

What diagnostics can help with

Diagnostics are useful for issues like:

• Engine management warning lights

• Poor starting, misfires, loss of power

• DPF/EGR/emissions-related faults

• ABS or airbag warning lights

• Sensor faults and electrical issues

• Intermittent problems that don’t show up consistently

Important note

A diagnostic check is designed to investigate a suspected fault. It’s not a replacement for routine servicing, but it is one of the fastest ways to get answers when something isn’t right.

Available at: Best Garages Ltd - Newport • Lymington • Ringwood