Controller. w/o hybrid. A control module used in a vehicle's Battery management system, typically found on Start / Stop non-hybrid and non-electric vehicles. A protective cover, which is placed over the Battery terminals, to protect the terminals from dirt and debris. A sensor used on the negative Battery terminal to measure the Battery's current to regulate a vehicles alternator output. Anti-Theft Alarm Control Unit. Battery Cable Terminal End. Positive. Cable Terminal End. Current Sensor. relay. Terminal Cover. Anti - Theft Alarm Control Unit. Central protection. Circuit Breaker. CONTROL MODULE. Controller. Fuse Unit. Protector.