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Vehicle Systems Guide

Diagnostics & Fault Finding

Modern vehicles contain 30-100+ electronic control units (ECUs) that communicate via a CAN bus network. Diagnostic equipment reads fault codes from these systems to identify problems.

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📞 01274 442192

Components

The diagnostics & fault finding consists of: OBD-II port, engine ECU, transmission ECU, ABS module, airbag module, body control module, instrument cluster, TPMS sensors, ADAS modules, key programming.

Petrol & diesel vehicles

All vehicles manufactured after 2001 (petrol) and 2004 (diesel) have OBD-II diagnostic ports. Manufacturer-specific scan tools access deeper system data.

Hybrid & electric vehicles

Electric vehicles have additional diagnostic systems for the battery management system (BMS), inverter, and electric motor. These require specialist EV-capable scan tools.

Common faults

The most common diagnostics & fault finding faults we see across Bradford and West Yorkshire include: engine warning light, ABS light, airbag light, traction control light, any dashboard warning, intermittent electrical issues, poor performance without obvious cause.

If you notice any of these symptoms, book a diagnostic session or call us on 01274 442192.

Typical costs (labour)

OBD diagnostic scan: £40-£60. Multi-system scan: £60-£90. Advanced fault finding session: £80-£120/hour. ADAS calibration: £80-£150.

Prices are illustrative and vary by vehicle. Enter your registration for an instant accurate quote for your specific car.

Related systems

Electrical System · Engine System

Areas we cover

We provide diagnostics & fault finding repairs across: Bradford, Shipley, Keighley, Ilkley, Pudsey, Bingley, Guiseley, Cleckheaton, Brighouse, and 50+ more locations within our 10-mile service zone.

Brands we service

Our technicians work on all makes including: BMW, Audi, Mercedes, Volkswagen, Ford, Vauxhall, Toyota, Kia, Hyundai, Nissan, plus 40 more. View all services →

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