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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Cluster Illumination & Instrument Panel Illumination >> Diagnosis And Testing >> Instrument Cluster and Panel Illumination >> Principles of Operation >> Fixed Backlighting

Fixed Backlighting

When the accessory delay relay is energized, switched voltage is supplied to the window and door lock control switches.