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Are you looking for Electronic Fault Diagnosticsfor your vehicle?


Regular inspection and maintenance is the secret to keeping your vehicle trouble-free. At Blackbrook Motors, we perform car diagnostics in St. Helens, Merseyside to help you with just that; follow on with any necessary repair, identify any damaged and malfunctioning parts and get them repaired for maximum performance from our service station today.

We are one of the largest vehicle service shops in St. Helens with a team of trained technicians offering complete car diagnostics and repairs at an affordable price.

Vehicle diagnostic – An inside look

TModern vehicles are the amalgamation of various sophisticated technology, controlled by a computer called the engine control unit or ECU. Our car diagnostic test in St. Helens revolves around accessing and reading ECU data to identify any malfunction.

Whenever your car’s ECU registers a glitch, it generates a fault-code, an alpha-numerical string that indicates the type of issue and the component where it occurred. Modern ECUs keep a detailed record of any and all fault-codes, which we access during car diagnostics in St. Helens to identify any malfunction.

Some components that can create issues

We diagnose almost every part by accessing ECU data. Some of the critical components that we emphasise include –

    • ABS

ABS or Anti-lock Braking System allows you to maintain traction upon sudden braking. Any malfunction with the ABS will be registered as a critical error in the ECU. You will also notice an ABS warning light in your car’s dash.

Bring your vehicle to Blackbrook Motors for car diagnostics in St. Helens whenever you face this issue.

    • Fuel system

Modern cars have swapped carburettors in exchange for a more efficient fuel injection system. These are also controlled by the ECU, regulating the amount of fuel being pumped into an engine, air-fuel ratio, and timing. Issues with the FI system can result in engine knocks, indicating improper fuel feed.

    • Power management

ECU also controls an engine’s power and cycle management. Issues with an engine’s power cycle will cause it to thwart its output and negatively impacting its mileage.

Usually, a complete car diagnostics test in St. Helens takes about two hours, including minor repairs that might be required.

Think quality, think us

Forget about scouring the internet for ‘car diagnostics near me’, bring your vehicle to our shop at Blackbrook Road, Haydock, St. Helens, WA11 0AD. Call us to book your appointment today.

For more information and quotes Call Us