About This Architecture

Main ECU CAU (Cab Area Unit) I/O architecture diagram illustrates the electrical connections and signal routing within a vehicle's cabin control module. The diagram maps input/output interfaces between the CAU and peripheral sensors, actuators, and communication buses throughout the cab environment. This architecture is critical for engineers designing cabin comfort, lighting, climate, and infotainment control systems that must integrate reliably across multiple vehicle platforms. Fork this diagram on Diagrams.so to customize I/O assignments, add CAN/LIN bus definitions, or adapt it for your specific vehicle architecture. The CAU typically serves as a secondary ECU coordinating cabin subsystems under the main vehicle gateway module.

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What is a CAU (Cab Area Unit) ECU and how are its inputs and outputs organized in a vehicle electrical architecture?

A CAU (Cab Area Unit) is a secondary ECU that manages cabin subsystems including lighting, climate, and infotainment. The I/O architecture diagram shows how the CAU connects to sensors (switches, temperature, occupancy), actuators (motors, relays, displays), and communication buses (CAN, LIN) to coordinate cabin functions under the main vehicle gateway module.