The power system of a school bus includes the engine, transmission, and drivetrain components, working together to generate and deliver the necessary power for propulsion, auxiliary systems, and onboard electrical functions.

The electrical system of a school bus powers essential components such as lighting, ignition, dashboard controls, and safety features, relying on batteries, alternators, and wiring to ensure reliable operation.

The cooling system of a school bus regulates engine temperature by circulating coolant through the radiator, water pump, and hoses, preventing overheating and ensuring optimal engine performance.

The exhaust system of a school bus channels engine emissions through components like the exhaust manifold, catalytic converter, and muffler, reducing pollutants and noise while ensuring compliance with environmental regulations.

The brake system of a bus is a critical safety mechanism that uses air or hydraulic pressure to control braking force, ensuring smooth and reliable stopping through components like brake pads, rotors, drums, and ABS technology.

The ECM (Engine Control Module) of a school bus is a computerized unit that monitors and controls engine performance, fuel efficiency, and emissions by processing sensor data to optimize overall vehicle operation.

Power-train Control Module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU).

An auxiliary system is a secondary system that provides additional support or functionality to a main system, often designed to automatically come into operation when needed.

The BCM (Body Control Module) of a school bus is an electronic control unit that manages various body functions, such as lighting, door operations, wipers, and climate control, enhancing safety and operational efficiency.

The Red Seal endorsement for a school bus technician signifies a nationally recognized certification in Canada, demonstrating expertise in diagnosing, repairing, and maintaining school bus systems to high industry standards.