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Home >> GMC >> 1989 >> Forward Control 3.9 L, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Standard & Electronic >> Description & Operation >> Voltmeter >> All Models

All Models

The voltmeter measures voltage of charging system. On Astro and Safari, the voltmeter uses an internal shunt and is connected to Black wire (terminal No. 11) and Pink/Black wire (terminal No. 17) of connector No 1.