Chevrolet Astro I (1985-2005) Charging circuit

B+ VOLTAGE BATTERY BATTERY IND BLK WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS E SERIAL DATA DK BLU WIRE DK GRN WIRE FUSIBLE LINK GAUGES FUSE 4 GENERATOR GENERATOR FIELD DUTY CYCLE SIGNAL GRY WIRE HOT AT ALL TIMES HOT IN RUN, START I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) IGN 1 VOLTAGE IGN VOLTAGE IPC CLASS 2 SERIAL DATA LOGIC INSTRUMENT PANEL CLUSTER ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RADIO BATT FUSE 19 RED WIRE SERIAL DATA CLASS 2 STARTER SOLENOID