Diagnostic Packages & Testing Services

At Norton Garage, we invest in advanced OBD-II diagnostic equipment, live-data ECU telemetry scanners, and electrical testing tools to diagnose faults accurately on all vehicle makes and models across Stockton-on-Tees:

Standard ECU Code Read

  • Full vehicle OBD-II electronic fault scan
  • Engine management light (EML) code retrieval
  • Diagnostic report & initial fault advice
  • Reset fault memory (where appropriate)
From
£39.99
Book Scan

Advanced System Diagnostics

  • Live ECU sensor data-logging & pressure readings
  • ABS, Airbag (SRS) & Traction Control diagnostics
  • Electrical wiring & component voltage testing
  • Actionable repair roadmap & parts estimate
From
£69.99
Book Diagnostic

DPF Pressure Diagnostics

Specialist diesel backpressure checks

From £49.99

Key Fob & ECU Coding

Module adaptation & programming

Get Quote

*Diagnostic scan fees cover initial equipment connection, fault-code analysis, and technician time. Repair costs are quoted separately following diagnosis.

Why Ignoring Your Engine Light Costs More

Modern vehicles contain up to 80 interconnected electronic control units (ECUs). When an amber or red warning light illuminates on your dashboard, it means a sensor has detected a parameter outside safe operating limits.

Ignoring a minor fault—such as a misfiring spark plug or a faulty oxygen sensor—can quickly destroy your catalytic converter, damage your turbocharger, or force your engine into electronic limp mode.

Beyond Code Reading — Finding the Root Cause

A diagnostic tool only tells us which sensor reported an error code (e.g. "MAF Sensor Out of Range"). Our experienced Norton mechanics conduct physical tests to confirm whether the sensor itself failed or if an underlying boost leak or broken wire caused the error.

Systems We Diagnose at Norton Garage

  • Engine Management (EML): Oxygen sensors, mass airflow (MAF) meters, misfires, throttle bodies, and fuel injection faults.
  • Braking & Safety (ABS / ESP / SRS): Wheel speed sensors, hydraulic pumps, brake wear indicators, and airbag module fault codes.
  • Exhaust & Emissions: EGR valve stuck open/closed, DPF differential pressure sensor faults, AdBlue errors, and catalytic converter efficiency.
  • Transmission & Drivetrain: Automatic gearbox fault codes, clutch actuator errors, and electronic differential controls.
  • Electrical & Battery: Alternator charging performance, battery drain diagnostics, electric window modules, and central locking faults.

Frequently Asked Questions

Clearing a fault code without fixing the underlying issue will only cause the warning light to return within a few miles once the ECU re-tests the sensor, resulting in an MOT failure.
An amber warning light indicates a fault that requires prompt inspection. A flashing or red warning light indicates a critical fault (such as low oil pressure or severe misfire)—you should pull over safely and turn off the engine immediately.
Yes! We provide free local collection and delivery across Norton, Stockton-on-Tees, Billingham, Thornaby, and Eaglescliffe.