Honda S2000 AP2 facelift (2003-2009) grn/wht Wiring diagrams

1 2 TEST TACHOMETER CONNECTOR (AT LEFT REAR OF ENGINE COMPT) 2 15 11 K-LINE CAN-H CAN-L 2 4 CANL CANH BLK WIRE BLU WIRE BRN WIRE CAN L CAN-H DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) DLC I/O ENGINE CONTROL MODULE (ECM) (BEHIND LEFT KICK PANEL) EPS CONTROL UNIT (RIGHT OF BATTERY) FUSE 46 GAUGE ASSEMBLY GRN WIRE GRN/WHT WIRE GRY GRY WIRE GRY WIRE HOT AT ALL TIMES IMMOBILIZER CONTROL UNIT (ON RIGHT SIDE OF STEERING COLUMN) K LINE LT BLU WIRE LT GRN WIRE MAIN UNDER-HOOD FUSE/RELAY BOX (AT RIGHT REAR OF ENGINE COMPT) MES MES CONNECTOR (ON UNDER-DASH FUSE/RELAY BOX) NEP RED WIRE SCS SCS DLC I/O NEP STEERING ANGLE SENSOR (UNDER STEER- ING COLUMN COVER) VSA MODULATOR/ CONTROL UNIT (AT LEFT REAR OF ENGINE COMPT) WEN WHT WIRE WHT/GRN WIRE

-SET CANCEL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DBW M+ DBW+ APP SENSOR (AT LEFT SIDE OF ENGINE COMPARTMENT) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRAKE PEDAL POSITION SWITCH BRN WIRE CABLE REEL (UNDER STEERING CABLE REEL (UNDER STEERING COLUMN COVER) CLUTCH PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) COLUMN COVER) HORNS SYSTEM CRUISE CONTROL INDICATOR LIGHT CRUISE CONTROL MAIN SWITCH CRUISE CONTROL MAIN SWITCH LIGHT CRUISE CONTROL SET/ RESUME CANCEL SWITCH DBW M- SG DOOR LOCKS SYSTEM DRIVE CIRCUIT ENGINE CONTROL UNIT (BEHIND LEFT KICK PANEL) ENGINE CONTROLS SYSTEM FILTER FREQUENCY DIVIDER CIRCUIT FUSE 11 FUSE 14 FUSE 25 FUSE 46 FUSE 47 FUSE 5 FUSE 6 GAUGE ASSEMBLY GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HORN RELAY HOT AT ALL TIMES HOT IN ON LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MAIN UNDER- HOOD FUSE/ RELAY BOX (AT RIGHT REAR OF ENGINE COMPT) OFF ON ON INDICATOR ORG/ WIRE OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR (LEFT SIDE OF TRANSMISSION) PGM-FI MAIN PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RESUME SEDF SEFD STARTING/ CHARGING STEERING WHEEL) SYSTEM THROTTLE ACTUATOR CONTROL MODULE (UNDER RIGHT SIDE OF DASH) THROTTLE ACTUATOR CONTROL MODULE RELAY (UNDER LEFT SIDE OF DASH) TP SENSOR/ THROTTLE ACTUATOR (LEFT FRONT OF ENGINE) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) VCC WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BRAKE PEDAL POSITION SWITCH (ON BRAKE PEDAL SUPPORT) COMBINATION SWITCH FUSE 23 FUSE 47 FUSE 49 FUSE/ RELAY BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 7 GAUGE ASSEMBLY GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HAZARD WARNING SWITCH HEAD HEADLIGHT SWITCH HIGH MOUNT BRAKE LIGHT HOT AT ALL TIMES HOT IN ON LEFT LEFT BRAKE LIGHT (LED) LEFT BRAKE/ SIDE MARKER/ TAILLIGHT LEFT FRONT PARKING LIGHT/ SIDE MARKER LIGHT LEFT REAR TURN SIGNAL LIGHT LEFT FRONT TURN SIGNAL LIGHT LEFT REAR SIDE MARKER LIGHT LEFT SIDE TURN SIGNAL LIGHT LEFT TAIL- LIGHT (LED) LEFT TURN INDICATOR LIGHT LICENSE PLATE LIGHT MAIN UNDER- HOOD FUSE/ RELAY BOX (AT RIGHT REAR OF ENGINE COMPT) MAIN UNDER-HOOD OFF PARK RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT RIGHT BRAKE LIGHT (LED) RIGHT BRAKE/ SIDE MARKER/ TAILLIGHT RIGHT FRONT PARKING LIGHT/ RIGHT REAR TURN SIGNAL LIGHT RIGHT FRONT TURN SIGNAL LIGHT RIGHT SIDE TURN SIGNAL LIGHT RIGHT REAR SIDE MARKER LIGHT RIGHT TAIL- LIGHT (LED) RIGHT TURN INDICATOR LIGHT SIDE MARKER LIGHT TAILLIGHT RELAY TURN SIGNAL SWITCH TURN SIGNAL/ HAZARD RELAY UNDER-DASH FUSE/ RELAY BOX (UNDER LEFT SIDE OF DASH) WHT WIRE WHT/BLK WIRE YEL WIRE

ANTI-THEFT SYSTEM BLK WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE INDICATOR LIGHT COMBINATION LIGHT SWITCH DAYTIME RUNNING LIGHTS (DRL) CONTROL UNIT DIMMER SWITCH LO HI DRL DIODE (UNDER MIDDLE OF DASH) DRL INDICATOR LIGHT ELECTRICAL LOAD DETECTOR UNIT FILTER FLASH TO PASS SWITCH FUSE 27 FUSE 41 FUSE 43 FUSE 44 FUSE 45 FUSE 5 GAUGE ASSEMBLY GRN WIRE GRN/WHT WIRE HEAD OFF HEAD- LIGHT RELAY 2 HEADLIGHT RELAY 1 HEADLIGHT SWITCH HIGH BEAM HIGH BEAM CUT RELAY HIGH BEAM IGNITER HIGH BEAM INDICATOR LIGHT HOT AT ALL TIMES HOT IN ON HOT IN ON W/ ENGINE NOT CRANKING IGNITER INVERTER LEFT HEADLIGHT LOW BEAM MAIN UNDER-HOOD FUSE/RELAY BOX ORG/ WIRE PARK PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) POWER TOPS SYSTEM RED WIRE RED/BLU WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) FUSE 19 WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 IGNITION ANTI-THEFT SYSTEM BLK WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE INDICATOR LIGHT COMBINATION LIGHT SWITCH CPU FILTER DAYTIME RUNNING LIGHTS (DRL) CONTROL UNIT (UNDER LEFT SIDE OF DASH) DAYTIME RUNNING LIGHTS (DRL) SUB-CONTROL UNIT (UNDER LEFT SIDE OF DASH) DIMMER SWITCH LO HI DRL DRL IND HIGH REQUEST PRK BRK IN DRL INDICATOR LIGHT ELECTRICAL LOAD DETECTOR UNIT FLASH TO PASS SWITCH FUSE 19 FUSE 27 FUSE 41 FUSE 43 FUSE 44 FUSE 45 FUSE 5 GAUGE ASSEMBLY GRN WIRE GRN/WHT WIRE HEAD OFF HEADLIGHT RELAY 1 HEADLIGHT RELAY 2 HEADLIGHT SWITCH HIGH BEAM HIGH BEAM CUT RELAY HIGH BEAM IGNITER HIGH BEAM INDICATOR LIGHT HOT AT ALL TIMES HOT IN ON HOT IN ON W/ ENGINE NOT CRANKING IGNITER INVERTER LEFT HEADLIGHT LOW BEAM MAIN UNDER-HOOD FUSE/RELAY BOX NOT USED NOT USED ON REQUEST ORG/ WIRE PARK PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) POWER POWER OUT GROUND GROUND POWER TOPS SYSTEM R HIGH CTRL IGNITION RED WIRE RED/BLU WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 IMOCD DIAG-H BRK SW IMOARM BLK WIRE BLK/YEL WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ECM (BEHIND LEFT KICK PANEL) ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM FUEL FUEL PUMP TANK UNIT (ON TOP OF FUEL TANK, BELOW REAR TRAY) FUSE 2 FUSE 25 GAUGE ASSEMBLY GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GROUND GROUND GROUND HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON IMMOBILIZER CONTROL UNIT- RECEIVER (ON RIGHT SIDE OF STEERING COLUMN) IMMOBILIZER SYSTEM INDICATOR INSTRUMENT CLUSTER SYSTEM J/C J/C LT BLU WIRE MAIN UNDER-HOOD FUSE/RELAY BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 46 PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE LEVER) PGM-FI MAIN RELAY 1 (UNDER LEFT SIDE OF DASH) PGM-FI MAIN RELAY 2 (UNDER LEFT SIDE OF DASH) PNK WIRE POWER TOPS SYSTEM RED WIRE RED/BLU WIRE SUPPLEMENTAL RESTRAINTS SYSTEM UNDER-DASH FUSE/ RELAY BOX (UNDER LEFT SIDE OF DASH) WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

A/C COMPRESSOR (ON LOWER LEFT SIDE OF ENGINE) A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C PRESSURE SWITCH (ON RECEIVER DRIER, BEHIND CENTER OF FRONT BUMPER) A/C SWITCH AIR MIX CONTROL MOTOR (UNDER RIGHT SIDE OF DASH) AMD-P BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE ECT SENSOR 1 (TOP REAR OF ENGINE) ECT SENSOR 2 (LOWER LEFT OF RADIATOR) ENGINE CONTROL MODULE (ECM) (BEHIND LEFT KICK PANEL) ENGINE CONTROLS SYSTEM EVAPORATOR TEMPERATURE SENSOR (UNDER RIGHT SIDE OF DASH, ON HEATER CASE) FAN CTRL FRESH OUT RECIRC OUT FRS FUSE 20 FUSE 25 FUSE 58 GAUGE ASSEMBLY GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND ILL(+) ILL(-) BATTERY IGNITION GRY WIRE HEATER CONTROL PANEL HIGH LOW HOT AT ALL TIMES HOT IN ON WITH ENGINE NOT CRANKING ILLUM CANCEL LT GRN WIRE M-COOL M-DEF M-HOT M-VENT MAIN UNDER-HOOD FUSE/RELAY BOX (AT RIGHT REAR OF ENGINE COMPARTMENT) MODE 1 MODE 2 MODE 3 MODE 4 MODE 4 OUTPUT MODE 3 OUTPUT ILLUM CANCEL SIG MODE CONTROL MOTOR (UNDER LEFT SIDE OF DASH) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE REC RECIRCULATION CONTROL MOTOR (UNDER RIGHT SIDE OF DASH) RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY CTRL S-COM THERMAL PROTECTOR TO BLOWER MOTOR RELAY (DIAGRAM 2 OF 2) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

AFS AFSHTC ALTF ALTL VTPSW APSB APSB BAROMETER SENSOR BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/YEL WIRE CMP B CKP DBW M- DBW+ ECM (BEHIND LEFT KICK PANEL) EVAP CANISTER PURGE VALVE (BELOW MASTER CYLINDER) FUSE 14 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/WHT WIRE HOT IN ON UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) IACV IAT ALTC SEFD SEDF PCS INTAKE AIR TEMPERATURE (IAT) SENSOR (ON INTAKE MANIFOLD) MAP AFS (+) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SEDF SEFD STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM THROTTLE ACTUATOR CONTROL MODULE (UNDER RIGHT SIDE OF DASH) VCC VTS WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

ACCELERATOR PEDAL POSITION SENSOR (AT LEFT SIDE OF ENGINE COMPARTMENT) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRAKE PEDAL POSITION SWITCH (ON BRAKE PEDAL SUPPORT) BRN WIRE BRN/YEL WIRE ELD UNIT ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 (TOP REAR OF ENGINE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2 (LOWER LEFT OF RADIATOR) FUSE 16 FUSE 46 FUSE 47 FUSE 6 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON MAIN UNDER- HOOD FUSE/ RELAY BOX (AT RIGHT REAR OF ENGINE COMPT) OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR (LEFT SIDE OF TRANSMISSION) RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SECONDARY HEATED UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BKSW K-LINE CAN-L NEP BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE CAN-H FANC SEFMJ FTP ELD PSPSW IMO FLR CCMSW CCRESSW BKSWNC CCCLSW CCSETSW COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) DRIVING CIRCUIT ECM (BEHIND LEFT KICK PANEL) ELECTRONIC POWER STEERING CONTROL UNIT (RIGHT OF BATTERY) ELECTRONIC POWER STEERING SYSTEM ETCSRLY FILTER FUEL TANK PRESSURE SENSOR (UNDERSIDE OF VEHICLE, AT FRONT OF FUEL TANK) FUSE 2 FUSE 25 FUSE 5 GAUGE ASSEMBLY GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON IMMOBILIZER CONTROL UNIT- RECEIVER (ON RIGHT SIDE OF STEERING COLUMN) IMMOBILIZER SYSTEM INDICATOR IMOCD ACS SCS WEN LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE LT GRN/WHT WIRE MIL INDICATOR MRLY AFSHTCR ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) VSV WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE