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Home >> Chevrolet >> 2005 >> Impala LS >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Computer/Integrating Systems >> Description and Operation >> Power Mode >> Notes
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Power Mode: Notes

Power to many of this vehicle's circuits are controlled by the module that is designated the Power Mode Master (PMM). This vehicle's PMM is the Body Control Module (BCM). The PMM controls which power mode (Run, Accessory, Crank, Retained Accessory Power, or Off) is active.