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Home >> BMW >> 2002 >> 745i >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Module - Overview - E65 >> Power Module >> Purpose of the System

Purpose of the System

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The Power Module (PM) is one of the innovative new developments on the E65. The job of the Power Module is to ensure that the battery charge level is maintained when the engine is running and when the vehicle is at rest. The Power Module is also responsible for maintaining the power supply (in the event of faults in the electrical system) to important vehicle systems by disconnecting lower priority circuits.