Ford Focus I (1998-2004) diode Wiring diagrams

BACK-UP LAMPS BATTERY JUNCTION BOX (LEFT REAR ENGINE COMPT) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE PEDAL POSITION SWITCH BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CENTRAL JUNCTION BOX (BEHIND LEFT SIDE OF DASH) DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) DIODE ENGINE COMPT) ENGINE CONTROLS FUSE 20 FUSE 42 FUSE 9 GEARSHIFT LEVER UNIT GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/ORG WIRE GRY/RED WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER MASS AIR FLOW (MAF SENSOR) NCA WIRE ORG/BLK WIRE OUTPUT SHAFT SPEED SENSOR (RIGHT SIDE OF TRANS) OVERDRIVE CANCEL SWITCH PCA POWER HOLD RELAY RED WIRE SSA SSB SSC SSD SSE STOPLAMP SWITCH (RIGHT SIDE OF BRAKE PEDAL BRACKET) TFT THROTTLE POSITION (TP) SENSOR (ON THROTTLE BODY) TRANSMISSION HARDWARE UNIT WHT (OR WHT/VIO) WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO WIRE

BATTERY JUNCTION BOX (BJB) (IN LEFT REAR CORNER OF ENGINE COMPARTMENT) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) DIODE DUAL PRESSURE SWITCH (RIGHT FRONT CORNER OF ENGINE COMPT) ENGINE COOLING FAN MOTOR (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) ENGINE COOLING FAN RELAY ENGINE COOLING FAN RESISTOR (IN FRONT OF ENGINE COMPT, NEAR COOLING FAN) FUSE 2 FUSE 6 FUSE 9 GRN WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH SPEED ENGINE COOLING FAN RELAY HOT AT ALL TIMES IGNITION SWITCH NCA WIRE OFF ORG/ WIRE POWER HOLD RELAY RED WIRE RUN WIRE SECOND COOLING FAN MOTOR (RIGHT FRONT OF ENGINE COMPT, BEHIND RADIATOR WHT WIRE WHT/RED WIRE YEL WIRE

38 68 86 91 SENSOR SIGNAL GROUND SWITCHED SENSOR SIGNAL SENSOR RETURN BATTERY JUNCTION BOX (BJB) (IN LEFT REAR CORNER OF ENGINE COMPARTMENT) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) COOLING FAN MOTOR DIODE (IN BATTERY JUNCTION BOX (BJB)) DIODE ENGINE COOLING FAN MOTOR (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) ENGINE COOLING FAN RELAY FUSE 2 FUSE 6 FUSE 9 GRN WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND SWITCHED HIGH SPEED ENGINE COOLING FAN RELAY HOT AT ALL TIMES IGNITION SWITCH NCA WIRE OFF ORG/ WIRE POWER HOLD RELAY RED WIRE RUN WIRE SECOND COOLING FAN MOTOR (IN RIGHT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) SPI+ VIO WIRE WHT (OR WIRE WHT WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE ZETEC-E

38 68 91 SENSOR SIGNAL SWITCHED GROUND SENSOR RETURN BATTERY JUNCTION BOX (BJB) (IN LEFT REAR CORNER OF ENGINE COMPARTMENT) BATTERY JUNCTION BOX (BJB) (IN LEFT REAR CORNER OF ENGINE COMPARTMENT) FUSE 2 BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLU WIRE BRN (OR WIRE BRN WIRE BRN/RED WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) COOLING FAN MOTOR DIODE DIODE ENGINE COOLING FAN MOTOR (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) ENGINE COOLING FAN RELAY FUSE 6 FUSE 9 GRN WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE HOT AT ALL TIMES IGNITION SWITCH NCA WIRE OFF ORG/ WIRE POWER HOLD RELAY RED WIRE RUN WIRE SPI+ VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE ZETEC-E

BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) BRN WIRE CENTRAL JUNCTION BOX (BEHIND LEFT SIDE OF DASH) CLOCK- SPRING CLUTCH PEDAL POSITION SWITCH (TOP OF CLUTCH PEDAL SUPPORT) COAST/RESUME DECEL DIODE FUSE 42 FUSE 53 FUSE 61 FUSE 9 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES BATTERY JUNCTION BOX (LEFT REAR CORNER OF ENG COMPT) HOT IN START OR RUN IGNITION SWITCH INSTRUMENT CLUSTER LOCK NCA WIRE OFF ORG/ WIRE POWER HOLD RELAY POWERTRAIN CONTROL MODULE (AT BASE OF "A" PILLAR) RADIO RED WIRE REST RUN WIRE SET/ACC SPEED CONTROL MODULE (ON CENTER OF FIREWALL) STEERING WHEEL/ SPEED CONTROL SWITCH (IN STEERING WHEEL) STOPLAMP SWITCH (UNDER LEFT SIDE OF DASH, ON UPPER RIGHT SIDE OF PEDAL BRACKET) VEHICLE SPEED SENSOR (RIGHT SIDE OF TRANSMISSION, NEAR DRIVESHAFT FLANGE) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE

3 4 (NOT USED) A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C WIDE OPEN THROTTLE (WOT) RELAY BATTERY JUNCTION BOX (BJB) (IN LEFT REAR CORNER OF ENGINE COMPARTMENT) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) DIODE ENGINE COOLING FAN RELAY FUSE 15 FUSE 2 FUSE 6 FUSE 9 GRN WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND SWITCHED HIGH SPEED ENGINE COOLING FAN RELAY HOT AT ALL TIMES IGNITION SWITCH NCA WIRE OFF ORG/ WIRE POWER HOLD RELAY RED WIRE RUN WIRE SECOND COOLING FAN MOTOR (IN RIGHT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) VIO WIRE WHT (OR WIRE WHT WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE ZTEC-E

3 4 (NOT USED) A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C WIDE OPEN THROTTLE (WOT) RELAY BATTERY JUNCTION BOX (BJB) (IN LEFT REAR CORNER OF ENGINE COMPARTMENT) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/RED WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) DIODE ENGINE COOLING FAN MOTOR (IN LEFT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) ENGINE COOLING FAN RELAY FUSE 15 FUSE 2 FUSE 6 FUSE 9 GRN WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND SWITCHED HIGH SPEED ENGINE COOLING FAN RELAY HOT AT ALL TIMES IGNITION SWITCH OFF ORG/ WIRE POWER HOLD RELAY RED WIRE RUN WIRE SECOND COOLING FAN MOTOR (IN RIGHT FRONT OF ENGINE COMPARTMENT, BEHIND RADIATOR) WHT WIRE WHT/RED WIRE YEL WIRE

-1 +2 1/+ A/C WIDE OPEN THROTTLE (WOT) RELAY BATTERY JUNCTION BOX (BJB) (LEFT REAR CORNER OF ENGINE COMPT) BLK WIRE BLU WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) DIODE ELECTRIC VACUUM REGULATOR (EVR) SOLENOID VALVE ENGINE ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE COOLING FAN RELAY EVAP CANISTER PURGE VALVE EVAPORATIVE EMISSION (EVAP) CANISTER VENT VALVE EXCEPT SVT SVT (1) (2) FROM BATTERY (DIAGRAM 1 OF 4) FROM FUSE 9 (DIAGRAM 1 OF 4) FROM IGNITION SWITCH (DIAGRAM 2 OF 4) FUEL PUMP RELAY FUSE 1 FUSE 64 FUSE 15 FUSE 18 FUSE 28 FUSE 40 GEARSHIFT LEVER UNIT GRN WIRE GRN/BLU WIRE HEATED OXYGEN SENSOR 11 HEATED OXYGEN SENSOR 12 HEATER BLOWER MOTOR HIGH BEAM RELAY LOW BEAM RELAY HIGH SPEED ENGINE COOLING FAN RELAY IDLE SPEED CONTROL VALVE INLET MANIFOLD RUNNER CONTROL (IMRC) MODULE IGNITION COIL IGNITION RELAY INJECTOR 1 CAMSHAFT TIMING ACTUATOR INJECTOR 2 INJECTOR 3 INJECTOR 4 LEFT REVERSING LAMP RIGHT REVERSING LAMP MASS AIRFLOW (MAF) SENSOR NCA WIRE ORG/ WIRE POWER HOLD RELAY POWERTRAIN CONTROL MODULE (PCM) RED WIRE RELAY RUN WIRE TO FUSE 53 (DIAGRAM 4 OF 4) TRANSMISSION RANGE SENSOR VEHICLE SPEED SENSOR W/O DRL WHT WIRE YEL WIRE

1 (OR 2) 1 POS 2 POS 2 (OR 1) A/C WIDE OPEN THROTTLE RELAY ANTI-THEFT SYSTEM (PATS IND) BATTERY JUNCTION BOX (BJB) (LEFT REAR CORNER OF ENGINE COMPT) BLK WIRE BLK/BLU (OR BLK) WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COOLING FANS (HIGH SPEED FAN RELAY) CRUISE CONTROL SYSTEM, SOUND SYSTEMS D POS DATALINE DATALINE HIGH FAN DIODE DLC ELECTRONIC VACUUM REGULATOR SOLENOID VALVE (ON LEFT SIDE OF FIREWALL) ENGINE COOLING FAN RELAY FUEL PUMP FUEL PUMP DRIVER MODULE (UNDER RIGHT REAR SEAT) FUEL PUMP RELAY FUEL TANK UNIT FUSE 12 FUSE 18 FUSE 8 FUSE 9 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GROUND IGN COIL START SIG VSS OUT O/D SW GROUND IGN COIL PATS FP DRIVER GRY/ORG WIRE HIGH SPEED ENGINE COOLING FAN RELAY HOT AT ALL TIMES IGNITION COIL (ON REAR OF CYLINDER HEAD) IGNITION RELAY IGNITION SWITCH IGNITION TRANSFORMER CAPACITOR (ON REAR OF CYL HEAD, BESIDE IGN COIL) IMRC R POS (SPI) INERTIA FUEL SHUTOFF SWITCH (BEHIND RIGHT KICK PANEL) LOCK MAF TFT SENS ECT CHT ACT FP DRIVER AC PRESS PATS IND MIL IND ECR SOL ORG/ WIRE ORG/BLK WIRE OSS TSS PATS INJ 3 CKP SENS CKP SENS POWER HOLD RELAY PSP SW RED WIRE RUN WIRE SPI+ STARTER RELAY STARTING/CHARGING SYSTEM TO SPARK PLUGS TRANS UNIT WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE

A/C WIDE OPEN THROTTLE RELAY ANTI-THEFT SYSTEM (PATS IND) BATTERY JUNCTION BOX (BJB) (LEFT REAR CORNER OF ENGINE COMPT) BLK WIRE BLK/BLU (OR BLK) WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN/BLU WIRE BRN/RED WIRE CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COOLING FANS (HIGH SPEED FAN RELAY) CRUISE CONTROL SYSTEM, SOUND SYSTEMS DATALINE DATALINE HIGH FAN DIODE DLC ENGINE COOLING FAN RELAY FUEL PUMP FUEL PUMP DRIVER MODULE (UNDER RIGHT REAR SEAT) FUEL PUMP RELAY FUEL TANK UNIT FUSE 12 FUSE 18 FUSE 8 FUSE 9 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND IGN COIL PATS FP DRIVER GRY/ORG WIRE HIGH SPEED ENGINE COOLING FAN RELAY HOT AT ALL TIMES IGNITION COIL (ON REAR OF CYLINDER HEAD) IGNITION RELAY IGNITION SWITCH INERTIA FUEL SHUTOFF SWITCH (BEHIND RIGHT KICK PANEL) LOCK MAF PRES SIG CHT ACT FP DRIVER AC PRESS PATS IND ORG/ WIRE ORG/BLK WIRE PATS INJ 3 CKP SENS CKP SENS GROUND GROUND GROUND IGN COIL START SIG VSS OUT POWER HOLD RELAY PSP SW RED WIRE RUN WIRE SENSOR SIG STARTER RELAY STARTING/CHARGING SYSTEM SW GND TO SPARK PLUGS WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE