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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Description & Operation >> "Lights On" Indicator

"Lights On" Indicator

BCM will command the LIGHTS ON indicator on through serial data line whenever the headlights are on through manual control or twilight sentinel. BCM monitors headlight circuit at terminal No. 2B6 ("headlights on" input).