Mercury Sable IV (1999-2005) heated oxygen sensor 21 (front of engine compt, on exhaust manifold) Wiring diagrams

A/C CLUTCH RELAY A/C SYSTEM BATTERY JUNCTION BOX (FRONT CENTER OF DASH, BEHIND RADIATOR) BLK/WHT WIRE BLK/YEL WIRE BRAKE PEDAL POSITION (BPP) SWITCH (UPPER DASH, UPPER FRONT SIDE OF BRAKE PEDAL) BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/ORG WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL JUNCTION BOX (UNDER LEFT SIDE OF DASH) CHARGING SYSTEM DK BLU/ORG WIRE DK BLU/YEL WIRE DPFE SENS SENSOR INPUT CANISTER VENT VSS SENS A/C CLUTCH RLY FROM DTR SENSOR (DIAGRAM 1 OF 4) FTP SENS IPS SENSOR INPUT FUEL INJECTORS FUSE 122 FUSE 17 FUSE 28 GROUND GRY/BLK WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEATED OXYGEN SENSOR 11 (REAR OF ENGINE COMPT, ON EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 12 (UNDER VEHICLE, DOWNSTREAM FROM CATALYTIC CONVERTER 1) HEATED OXYGEN SENSOR 21 (FRONT OF ENGINE COMPT, ON EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 22 (UNDER VEHICLE, DOWNSTREAM FROM CATALYTIC CONVERTER 2) HOT AT ALL TIMES IND CTRL FUEL INJ 6 FUEL INJ 4 FUEL INJ 2 LT BLU/ORG WIRE LT BLU/RED WIRE LT GRN WIRE LT GRN/ORG WIRE LT GRN/RED WIRE MAF SENS TP SENS VREF SIGNAL RETURN BPP SW NCA WIRE PNK/LT BLU WIRE PNK/WHT WIRE PNK/YEL WIRE POWER (IGN) POWERTRAIN CONTROL MODULE (PCM) (RIGHT REAR CORNER OF ENGINE COMPT, IN FIREWALL) RED WIRE RED/BLK WIRE RED/LT GRN WIRE RED/PNK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/ORG WIRE TAN/YEL WIRE TOP OF ENGINE) VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/LT BLU WIRE YEL/RED WIRE YEL/WHT WIRE

A/C CLUTCH RELAY A/C SYSTEM BATTERY JUNCTION BOX (BEHIND RADIATOR) BLK/WHT WIRE BLK/YEL WIRE BRAKE PEDAL POSITION (BPP) SWITCH (UPPER DASH, UPPER FRONT SIDE OF BRAKE PEDAL) BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/ORG WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL JUNCTION BOX (UNDER LEFT SIDE OF DASH) DK BLU/ORG WIRE DK BLU/YEL WIRE DPFE SENS SENSOR INPUT CANISTER VENT VSS SENS A/C CLUTCH RLY FROM DTR SENSOR (DIAGRAM 1 OF 4) FTP SENS IPS SENS IN FUEL INJECTORS FUSE 17 FUSE 22 FUSE 28 GROUND GRY/BLK WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEATED OXYGEN SENSOR 11 (REAR OF ENGINE COMPT, ON EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 12 (UNDER VEHICLE, DOWNSTREAM FROM CATALYTIC CONVERTER 1) HEATED OXYGEN SENSOR 21 (FRONT OF ENGINE COMPT, ON EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 22 (UNDER VEHICLE, DOWNSTREAM FROM CATALYTIC CONVERTER 2) HOT AT ALL TIMES IND CTRL FUEL INJ 6 FUEL INJ 4 FUEL INJ 2 LT BLU/ORG WIRE LT BLU/RED WIRE LT GRN WIRE LT GRN/ORG WIRE LT GRN/RED WIRE MAF SENS TP SENS VREF SIGNAL RETURN BPP SW NCA WIRE PNK/LT BLU WIRE PNK/WHT WIRE PNK/YEL WIRE POWER (IGN) POWERTRAIN CONTROL MODULE (PCM) (RIGHT REAR CORNER OF ENGINE COMPT, IN FIREWALL) RED WIRE RED/BLK WIRE RED/LT GRN WIRE RED/PNK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/ORG WIRE TAN/YEL WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/LT BLU WIRE YEL/RED WIRE YEL/WHT WIRE