GMC Savana Special G3500 (1996-2011) Headlight circuit, with sealed beam headlamps

BLK WIRE BRAKE IND CTRL BRAKE PSI IN DRL RELAY CTRL BULB TEST LOCK OFF DAYTIME RUNNING LAMPS MODULE (UNDER LEFT SIDE OF I/P, TAPED TO I/P HARNESS) DAYTIME RUNNING LAMPS RELAY (UNDER LEFT SIDE OF I/P, ON CONVENIENCE CENTER) DRL DIODE MODULE DRL FUSE 15 DRL INDICATOR FROM 36-PIN LEFT BULKHEAD CONN) BREAKOUT) LT GAUGES FUSE 4 GRN WIRE GROUND HEAD HEADLAMP DIMMER SWITCH HEADLAMP SWITCH HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (LEFT KICK PANEL) IGNITION SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT FORWARD LAMP BREAKOUT TOWARD RIGHT) LEFT FORWARD LAMP BREAKOUT) LEFT HEADLAMP LIGHTING MAXI FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT PPL OFF PARK ORG/ WIRE PARK BRAKE IN IGN KEY STATUS PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGN (RUN/ST) LAMP FEED WIRE PNK WIRE PPL RED WIRE RIGHT HEADLAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPT, LEFT FENDER) WHT WIRE YEL WIRE