Car Wiring Diagrams for Headlights circuit for GMC RV Cutaway G3500 (2012-2013)

12 8 17 11 SWITCH ON SIG PARK LAMPS SIG SWITCH OFF SIG AMBIENT SENS SIG 23 16 PPL LO BEAM CTRL HI BEAM RLY CTRL 25 18 HEADLAMP SW SIG HEADLAMP LO SIG AMBIENT LIGHT SENSOR (ON TOP OF INSTRUMENT PANEL) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRL 1 FUSE 67 DRL 2 FUSE 66 DRL PCB RELAY FTP FUSIBLE LINK 2 HEAD HEAD 1 8 HEAD LAMP HIGH BEAM RELAY HEADLAMP, PANEL DIMMER SWITCH HIGH BEAM IND HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY 15 ENERGIZED IGN IPC FUSE 10 LEFT HIGH BEAM HEADLAMP LEFT HEADLAMP LEFT LOW BEAM HEADLAMP LO BEAM RLY CTRL LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW BEAM PCB RELAY LT BLU WIRE LT GRN/BLK WIRE LT LO BEAM FUSE 53 OFF AUTO PARK PARK BRAKE SWITCH (UNDER LEFT SIDE OF DASH) PARK BRK SW SIG PNK WIRE PNK/WHT WIRE PPL RED WIRE RIGHT HEADLAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RT HI BEAM FUSE 52 RT LO LT HI BEAM BEAM FUSE 54 FUSE 51 SERIAL DATA SYSTEM TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ CHROME GRILLE W/ CHROME GRILLE W/O CHROME GRILLE W/O CHROME GRILLE WHT WIRE YEL WIRE