GMC Yukon I (1991-1999) Electronic power steering circuit

BATTERY FEED EVO SOL OUTPUT BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC VARIABLE ORIFICE (EVO) SOLENOID (ON STEERING PUMP) EVO SOL FEED GAUGES FUSE 4 GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK LT BLU WIRE ORG/ WIRE ORG/BLK WIRE PNK PPL IGNITION SRL DATA CLASS 13 SENSOR RETURN 5 VOLT REF WIRE PNK WIRE POS SIG VOLT OUT REF POSITION SIGNAL VSS SIGNAL INPUT POWER STEERING CONTROL MODULE (PSCM) (UNDER CENTER OF I/P) PPL PPL (I/P HARN, APPROX 5 CM INTO DATA LINK CONNECTOR BREAKOUT) SECURITY FUSE 21 STEERING WHEEL POSITION SENSOR (ON STEERING COLUMN) SEN RTN VEHICLE CONTROL MODULE (VCM) (IN ENGINE COMPT) VSS OUT WHT WIRE