Working on modern cars can feel very different from working on vehicles built 20 or 30 years ago. Electronics, sensors and complex control systems mean that many faults now involve diagnostics as well as mechanical repair.
Haynes Autofix is designed to help DIY vehicle owners understand and maintain modern cars by bringing together key technical data, electrical information, fault code guidance and practical repair advice in a single online platform.
While traditional Haynes manuals focus on step-by-step teardown procedures, Autofix brings together technical data, wiring diagrams and diagnostic guidance to help owners understand and maintain modern vehicles.
Access is linked to your specific vehicle, so the information you see is tailored to your car.
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What does Haynes Autofix include?
Haynes Autofix brings together several different types of information that are useful when maintaining or troubleshooting a modern vehicle.
These include:
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Vehicle-specific service schedules and maintenance information
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Technical data and specifications
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Fault code explanations and diagnostic guidance
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Electrical wiring diagrams for key systems
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Technical drawings and component location information
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Practical DIY tutorials covering common repair tasks
Together, these tools help owners understand how their vehicle systems work, interpret warning codes and prepare for maintenance or repair work.
Service and maintenance information
Keeping up with regular servicing is one of the best ways to keep a car reliable and avoid expensive repairs.
Autofix provides vehicle-specific service schedules and maintenance information, including:
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Service intervals
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Fluid types and capacities
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Torque settings
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Inspection items and service procedures
This information helps owners plan maintenance correctly and ensure the correct fluids, parts and specifications are used.
Fault code help and diagnostic guidance
Modern vehicles rely heavily on electronic systems, and many faults trigger diagnostic trouble codes that can be read using an OBD scanner. Autofix helps interpret these codes and understand what they may mean.
The system includes:
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Fault code explanations
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Possible causes
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Suggested diagnostic checks
An interactive fault finder also guides users through common symptoms and possible causes, helping owners narrow down likely issues before beginning repairs or replacing parts.
When used alongside a compatible OBD scanner, Autofix helps owners interpret fault codes and understand the systems involved.
Wiring diagrams
Electrical problems can be some of the most challenging faults to diagnose on modern vehicles.
Autofix includes wiring diagrams for a range of important vehicle systems, such as:
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Engine management
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Charging and starting systems
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ABS and stability control
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Air conditioning
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Comfort and body systems
These diagrams help users understand how circuits are connected and identify the components involved when tracing electrical faults.
Technical drawings and component locations
Understanding where components are located and how systems are arranged can make repair work much easier.
Autofix includes a range of technical drawings and component location images that help users identify parts and understand how key systems are arranged within the vehicle.
This information can be particularly useful when preparing for maintenance or investigating faults.
Practical DIY tutorials
In addition to vehicle-specific technical information, Autofix includes a library of practical tutorials covering common maintenance and repair tasks.
These guides explain typical procedures and best-practice approaches for tasks such as:
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Oil changes
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Brake pad swaps
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Cooling system checks
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Detail on changing timing and auxiliary belts
These tutorials provide general guidance that applies to many vehicles and help DIY mechanics understand how common repair tasks are typically carried out.
Designed for modern DIY car maintenance
Modern vehicles combine mechanical engineering with increasingly complex electronic systems.
Haynes Autofix brings together key technical data, wiring information and practical repair guidance in a single reference platform designed for DIY vehicle owners.
Whether you are planning routine servicing, investigating a warning light or preparing for a repair job, Autofix provides structured information to help you understand your vehicle and approach maintenance with confidence.
