Headlight circuit, commercial chassis without drl for GMC Vandura P3500 (1985-1997)

1 2 ALL GASOLINE; DIESEL W/ A/T DIESEL W/ M/T BLK WIRE GRN WIRE HEADLAMPS SWITCH HI BEAM INDICATOR HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT HEADLAMP HI HI LO LO HEADLAMPS DIMMER SWITCH LT GRN WIRE OFF HEAD PARK RIGHT HEADLAMP LO TAN WIRE YEL WIRE