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Home >> GMC >> 2000 >> Yukon Denali >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> Operation >> Asleep & Awake Functions

Asleep & Awake Functions

After the ignition switch is turned off and 20 minutes elapse without any wake up signals, the BCM enters an asleep state and goes into the low power mode. Wake up signals turn BCM on to begin controlling and/or monitoring of certain functions. BCM wake-up inputs are as follows: