Instrument illumination circuit for Buick Roadmaster VIII (1991-1996)

ANALOG DIM ASHTRAY LAMP AUTO HEADLAMP OR DRL CONTROL MODULE BASE BLK WIRE BRN WIRE COURTESY LAMPS CIRCUIT COURTESY SWITCH DIMMING SWITCH DK BLU WIRE GRY WIRE HEAD OFF PARK HEADLAMP SWITCH HEADLIGHT SWITCH HEATER AND A/C CONTROL HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF I/P) INSTRUMENT CLUSTER INT DIM FUSE 42 LEFT DOOR LOCK SWITCH LAMP MAX OPENS AT EXTREME POSITION RADIO REAR WINDOW WIPER/ WASHER, MULTI- FUNCTION SWITCH (WAGON) RIGHT DOOR LOCK SWITCH LAMP TRUNK LID RELEASE SWITCH WHT WIRE WITH DRL OR TWILIGHT SENTINEL YEL WIRE