This manual pertains to the Porsche 928, a distinguished grand tourer produced for the USA market in 1981. Engineered with Porsche's renowned commitment to performance and innovation, the 928 was designed to offer a blend of sporty handling and luxurious comfort. Its V8 engine, coupled with a sophisticated transaxle layout for optimal weight distribution, provided a unique driving experience. The 928 was recognized for its advanced technology for the era, earning the European Car of the Year award in 1978, and continues to be celebrated for its engineering quality and distinctive design.

This specialized Current Flow Diagram Manual focuses on the electrical system troubleshooting and repair of the 1981 Porsche 928. It provides comprehensive, professional-grade diagnostic information, including detailed current flow diagrams, component testing procedures, and guidance for repairing electrical faults across all major vehicle systems. The manual is designed to assist owners, mechanics, and technicians in accurately diagnosing and resolving complex electrical issues, thereby ensuring the continued optimal performance and reliability of the vehicle. Its detailed diagrams and step-by-step methodologies are presented with clarity for effective use.