GMC Cab & Chassis C3500 (1985-2000) Shift interlock circuit

BLK WIRE DK GRN/WHT WIRE HOT IN RUN OR START TURN/BU FUSE 16 I/P FUSE BLOCK LT GRN WIRE PARK/ NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK WIRE TCC/STOPLAMP SWITCH (OPEN W/ BRAKE APPLIED) (TOP OF BRAKE PEDAL) TRANSFER CASE CONTROL MODULE (UNDER DASH ON STEERING COLUMN SUPPORT BRACKET) TURN/ HAZARD SWITCH PNK WIRE W/ ELECTRIC SHIFT TRANSFER CASE