# ProCarManuals > Free automotive reference resource: car repair and owner's manuals, wiring diagrams, fuse box layouts and fault (DTC) code references for cars, trucks and agricultural machinery. All manuals are provided as free PDF downloads or viewable online. The site is organised by manufacturer: each brand has a category page listing its models, and each model page links to the related manuals, wiring diagrams and fuse box guides. Site-wide search is available on every page. ## Main sections - [Repair and owner's manuals](https://procarmanuals.com/category/manual/): all manuals grouped by manufacturer and model - [About ProCarManuals](https://procarmanuals.com/about/): purpose of the project, sources and copyright policy - [FAQ](https://procarmanuals.com/faq-page/): how to search, download PDFs, read diagrams and use the diagnostic tools ## Machine-readable resources - [XML sitemap](https://procarmanuals.com/sitemaps.xml): full list of indexable pages - [Agentic Resource Discovery catalog](https://procarmanuals.com/.well-known/ai-catalog.json): ARD manifest for AI agents ## Optional - [Full-text export (llms-full.txt)](https://procarmanuals.com/llms-full.txt): concatenated plain-text version of the key pages for large-context models