Vehicle Diagnostics

Seeing warning lights on your dashboard? Our expert technicians at Alan Thompson Motor Engineers can quickly pinpoint issues using advanced diagnostic tools, helping you avoid costly failures before they occur.

What Is Vehicle Diagnostics?

Modern vehicles rely on an Engine Control Unit (ECU) that continuously monitors sensors across your car—everything from engine temperature and fluid levels to emissions and electronic systems. When a sensor detects a fault, the ECU triggers a dashboard warning light and stores a fault code. Only specialist diagnostic equipment can read these codes and interpret the underlying issue.

Why Diagnostics Matter

A warning light is just the starting point—it doesn’t reveal the exact fault. Proper diagnostics:

• Read and clear ECU fault codes across engine, transmission, ABS, airbags, and more.

• Display live data streams to assess sensor performance and identify intermittent faults.

• Test electronic systems such as braking (electronic handbrakes) and headlight alignment.

• Help prevent minor issues from escalating into major repairs or safety hazards.

Our Diagnostic Process

• Initial Code Read: Connect to your ECU with Hella Gutmann diagnostic tools to retrieve and interpret fault codes.

• Live Data Analysis: Monitor real-time sensor outputs for temperature, pressure, and electrical values.

• System Tests: Execute functional tests on ABS, airbag systems, electronic throttle, and more.

• Report & Repair: Provide a clear report of findings and recommend required repairs or recalibrations.

Need a Diagnostic Check?

Call us today on 0161 485 6835 to book your vehicle diagnostic appointment.

Our skilled team will ensure any faults are accurately identified and resolved, keeping your car safe and reliable.