This Service Repair Manual provides comprehensive information for Volvo Buses, specifically the B10B and B12 models. These commercial vehicles are engineered for reliability and performance, featuring diesel engines and rear-wheel drive systems. This manual focuses on the electrical system, offering detailed insights into its components and operation.

The purpose of this English-language manual is to assist owners, mechanics, and technicians in maintaining and repairing the electrical system of these buses. It covers essential areas such as electrical system diagnosis, component replacement, and troubleshooting procedures, utilizing wiring diagrams and system voltage specifications to ensure efficient and accurate service.