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Home >> Ford >> 2015 >> Fusion Titanium Hybrid >> Repair and Diagnosis >> External Pages >> Different car >> Section 569 (Instrument Panel And Interior Switches Illumination (Except Hybrid)) >> Description And Operation >> Instrument Panel and Interior Switches Illumination - System Operation and Component Description >> Non-Networked Illumination Operation

Non-Networked Illumination Operation

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Based on the ambient light level input from the autolamp/sunload sensor and the requested illumination dimming level input from the dimmer switch, the BCM calculates the correct dimming level for the hardwired illumination sources. The BCM provides a pulse-width modulated voltage to all hardwired illumination sources on 1 circuit.