Chevrolet Astro I (1985-2005) 4.3l vin x, transfer case circuit

ATC FUSE BLK WIRE BRAKE FUSE 18 BRN WIRE CONVENIENCE CENTER (LEFT OF I/P FUSE BLOCK, BY LEFT KICK PANEL) DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK GRN WIRE DK GRN/WHT WIRE FRONT PROPSHAFT SPEED SENSOR (NEAR CENTER OF TRANSFER CASE) GROUND GROUND GRY WIRE HOT AT ALL TIMES HOT IN I/C LOGIC I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE ORG/ WIRE PPL RADIO BATT FUSE 19 REAR PROPSHAFT SPEED SENSOR (NEAR CENTER OF TRANSFER CASE) RED WIRE RR VSS RR VSS RUN WIRE SERIAL DATA IGNITION SERVICE AWD IND SOUND SYSTEM (RADIO) STOPLAMP SWITCH, ELECTRONIC BRAKE CONTROL MODULE) TC MOTOR TC MOTOR GROUND BATTERY TRANSFER CASE ENCODER MOTOR (INSIDE TRANSFER CASE) TRANSFER CASE SHIFT CONTROL MODULE (BEHIND LEFT KICK PANEL) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF FIREWALL) VOLTAGE REGULATOR VSS VSS PPL YEL WIRE