About Us

The Trusted Diagnostic Company in the South West

Don’t play guessing games with your car’s safety. Whether it’s an airbag warning, ABS fault, or a mysterious misfire, our dealer-grade diagnostics pinpoint the exact issue in minutes. We clear the codes, explain the problem in plain English, and get you back on the road safely.

07404367405

Welcome to Kernow Diagnostics

The "Check Engine" Light Ruining Your Day?

We’ll diagnose it in 30 minutes.

When that red AIRBAG or SRS light stays on after start-up, you are driving without a safety net. In the event of a collision, the vehicle’s computer has disabled the system—meaning your airbags may not inflate. What We Do: We don’t just "delete" the code. We perform a deep dive into the Supplemental Restraint System (SRS) using manufacturer-level software.

Clear Air bag/SRS light

The Report Includes: ECU Health: We check every module (Engine, Gearbox, ABS, Climate) for hidden pending codes—faults that haven't turned the warning light on yet. Live Data Analysis: We graph your oxygen sensors, MAF sensor readings, and fuel pressure to spot lazy components before they fail. Advisory Report: A plain-English, printable document ranking issues as Critical, Immediate, or Monitor.

Full Health Report

We Diagnose: Misfires: We don't just tell you which cylinder; we tell you why (fuel, spark, or compression). Transmission Slip: We read clutch pack wear and solenoid response times—not just generic "gearbox fault" codes. DPF & Emissions: For modern diesels, we check soot load and differential pressure to see if your filter is clogged.

Diagnose Engine/Drivetrain/Electrical issues

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Want your car to drive like new again?

Make Appointment