GMC Envoy I (1997-2000) Instrument illumination circuit

A/T SHIFT INDICATOR COMPASS TRIP CONSOLE AM/FM STEREO RADIO DIM BLK WIRE BODY BUSSED ELECTRICAL CENTER (BBEC) (PARK LAMP RELAY) BRN WIRE DIM POT DK GRN WIRE EXTERIOR LAMPS SYSTEM FOG LAMP SWITCH GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES PRK LP FUSE HVAC CONTROLLER (MANUAL) (4) BULBS I/P FUSE BLOCK I/P TRAY ASH TRAY LAMP ILLUM FUSE INSTRUMENT CLUSTER LEFT FRONT DOOR HARN, 8 CM FROM RADIO SPEAKER BREAKOUT) LEFT FRONT DOOR LOCK AND WINDOW SWITCH LIFTGATE/ LIFTGLASS SWITCH LIGHT SWITCH LT BLU WIRE NCA WIRE OFF HEAD PARK ORG/ WIRE OUTSIDE REARVIEW MIRROR SWITCH PRK LPS PRK LPS FUSE REAR DEFOGGER SYSTEM RIGHT FRONT DOOR LOCK AND WINDOW SWITCH SUPPLEMENTAL/ INFLATABLE RESTRAINT I/P MODULE TRANSFER CASE SELECT SWITCH TRANSMISSION SHIFTER LEVER TRUCK BODY CONTROL (TBC) MODULE (BEHIND DASH, MOUNTED TO HEATER) UNDERHOOD BUSSED ELECTRICAL CENTER (UBEC) WHT WIRE WINDOW LOCKOUT SWITCH