LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1999 >> Envoy >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Analog >> Operation >> Gauges >> Fuel

Instrument Panel - Analog: Operation: Gauges: Fuel

Gauge is Instrument Panel Cluster (IPC) controlled using Vehicle Control Module/Powertrain Control Module (VCM/PCM) data on Class 2 serial data line. As fuel level increases, sending unit resistance increases. VCM/PCM receives information from resistance of fuel tank sending unit and sends it to IPC.