Cadillac Seville V (1998-2004) Pass-key circuit

B+ SENSOR SIG B+ SERIAL DATA SERIAL DATA B+ BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM GRD HOT AT ALL TIMES IGNITION SWITCH NCA WIRE OFF ORG/ WIRE PCM/BATT FUSE POWER DISTRIBUTION SYSTEM PPL PPL SENSOR REF SENSOR SIG SPLICE THEFT DETERRENT EXCITER MODULE UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE