GMC Envoy I (1997-2000) Anti-theft circuit

BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE FUSE 3 GRD BATTERY SERIAL DATA GRD SENSOR PWR IGNITION HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PASSLOCK SENSOR (AT IGNITION SWITCH) RED WIRE RED/WHT WIRE SENSOR RET SENSOR DATA SPLICE PACK TBC FUSE TRUCK BODY CONTROL MODULE (BEHIND DASH, ON HEATER) UNDERHOOD BUSSED ELECTRICAL CENTER WHT WIRE YEL WIRE