Shift interlock circuit, commercial chassis for Chevrolet Cutaway P30 (1985-1997)

85 30 PPL BLK WIRE BRAKE/ BRAKE/TRANSMISSION SHIFT INTERLOCK (BTSI) SOLENOID (ON STEERING COLUMN) BRN WIRE DIESEL DK GRN/WHT WIRE GASOLINE HOT IN RUN I-3 FUSE I/P FUSE BLOCK PARK/NEUTRAL POSITION AND BACKUP LAMPS SWITCH (LEFT OF TRANS) PPL TORQUE CONVERTER CLUTCH AND STOP LAMPS SWITCH (RIGHT SIDE OF STEERING COLUMN) TRANS- MISSION CONTROL MODULE (LEFT INTERIOR BULKHEAD) TURN SIGNAL FLASHER (ON FUSE BLOCK) TURN-B/U FUSE VEHICLE CONTROL MODULE (LEFT RADIATOR SUPPORT) IGN YEL WIRE