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AP1 2000–03 (F20C) → rusEFI Proteus (auto)

AP1 2000–03 (F20C) — rusEFI — Proteus
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-04

Revisions

RevLabelByDate
No revisions yet.

Schematic

OEM-AOEM-BOEM-COEM-DPROTEUS-Black23PROTEUS-Black35PROTEUS-White35SP-0VSP-14VSP-GND

Connectors

OEM-A

Mating face
OEM-A-1 · Coolant temp gauge drive1OEM-A-2 · Air control valve solenoid2OEM-A-3 · Evap bypass solenoid3OEM-A-4 · Evap canister vent shut valve4OEM-A-5 · NC5OEM-A-6 · Evap canister purge valve6OEM-A-7 · NC7OEM-A-8 · NC8OEM-A-9 · Vehicle speed sensor9OEM-A-10 · Service check signal10OEM-A-11 · NC11OEM-A-12 · Immobilizer indicator light12OEM-A-13 · Immobilizer enable signal13OEM-A-14 · NC14OEM-A-15 · Fuel pump relay (USDM)15OEM-A-16 · Fuel pump relay (JDM)16OEM-A-17 · A/C clutch relay17OEM-A-18 · Check engine light (MIL)18OEM-A-19 · Tacho output19OEM-A-20 · Radiator fan relay20OEM-A-21 · K-Line21OEM-A-22 · NC22OEM-A-23 · Secondary O2 sensor23OEM-A-24 · Starter switch signal24OEM-A-25 · Immobilizer code25OEM-A-26 · Power steering load detect26OEM-A-27 · A/C switch (request)27OEM-A-28 · Air pump relay28OEM-A-29 · Fuel tank pressure sensor29OEM-A-30 · Electrical load detector30OEM-A-31 · NC31OEM-A-32 · Brake switch32
Wire side
OEM-A-1 · Coolant temp gauge drive1OEM-A-2 · Air control valve solenoid2OEM-A-3 · Evap bypass solenoid3OEM-A-4 · Evap canister vent shut valve4OEM-A-5 · NC5OEM-A-6 · Evap canister purge valve6OEM-A-7 · NC7OEM-A-8 · NC8OEM-A-9 · Vehicle speed sensor9OEM-A-10 · Service check signal10OEM-A-11 · NC11OEM-A-12 · Immobilizer indicator light12OEM-A-13 · Immobilizer enable signal13OEM-A-14 · NC14OEM-A-15 · Fuel pump relay (USDM)15OEM-A-16 · Fuel pump relay (JDM)16OEM-A-17 · A/C clutch relay17OEM-A-18 · Check engine light (MIL)18OEM-A-19 · Tacho output19OEM-A-20 · Radiator fan relay20OEM-A-21 · K-Line21OEM-A-22 · NC22OEM-A-23 · Secondary O2 sensor23OEM-A-24 · Starter switch signal24OEM-A-25 · Immobilizer code25OEM-A-26 · Power steering load detect26OEM-A-27 · A/C switch (request)27OEM-A-28 · Air pump relay28OEM-A-29 · Fuel tank pressure sensor29OEM-A-30 · Electrical load detector30OEM-A-31 · NC31OEM-A-32 · Brake switch32
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Coolant temp gauge drive—W52—0.5PROTEUS-Black35-6———
2Air control valve solenoid—W55—0.5PROTEUS-Black35-8———
3Evap bypass solenoid—W56—0.5PROTEUS-Black23-6———
4Evap canister vent shut valve—W57—0.5PROTEUS-Black23-7———
5NC————————
6Evap canister purge valve—W58—0.5PROTEUS-Black23-15———
7NC————————
8NC————————
9Vehicle speed sensor—W70—0.5PROTEUS-Black23-2———
10Service check signal————————
11NC————————
12Immobilizer indicator light—W53—0.5PROTEUS-Black35-7———
13Immobilizer enable signal————————
14NC————————
15Fuel pump relay (USDM)—W43—0.5PROTEUS-Black35-20———
16Fuel pump relay (JDM)—W44—0.5PROTEUS-Black35-9———
17A/C clutch relay—W45—0.5PROTEUS-Black35-21———
18Check engine light (MIL)—W54—0.5PROTEUS-Black35-19———
19Tacho output————————
20Radiator fan relay—W46—0.5PROTEUS-Black35-10———
21K-Line————————
22NC————————
23Secondary O2 sensor—W62—0.5PROTEUS-White35-14———
24Starter switch signal—W72—0.5PROTEUS-Black23-3———
25Immobilizer code————————
26Power steering load detect—W73—0.5PROTEUS-Black23-9———
27A/C switch (request)—W74—0.5PROTEUS-Black23-11———
28Air pump relay—W47—0.5PROTEUS-Black35-11———
29Fuel tank pressure sensor—W67—0.5PROTEUS-White35-26———
30Electrical load detector—W68—0.5PROTEUS-White35-16———
31NC————————
32Brake switch—W75—0.5PROTEUS-White35-17———

OEM-B

Mating face
OEM-B-1 · Power source 1 (main relay)1OEM-B-2 · Power ground 12OEM-B-3 · Injector 23OEM-B-4 · Injector 34OEM-B-5 · Injector 45OEM-B-6 · NC6OEM-B-7 · NC7OEM-B-8 · NC8OEM-B-9 · Power source 2 (main relay)9OEM-B-10 · Power ground 210OEM-B-11 · Injector 111OEM-B-12 · VTEC solenoid12OEM-B-13 · NC13OEM-B-14 · NC14OEM-B-15 · NC15OEM-B-16 · NC16OEM-B-17 · NC17OEM-B-18 · NC18OEM-B-19 · NC19OEM-B-20 · Ground20OEM-B-21 · Backup power (battery constant)21OEM-B-22 · Ground22OEM-B-23 · Idle air control valve23OEM-B-24 · NC24OEM-B-25 · NC25
Wire side
OEM-B-1 · Power source 1 (main relay)1OEM-B-2 · Power ground 12OEM-B-3 · Injector 23OEM-B-4 · Injector 34OEM-B-5 · Injector 45OEM-B-6 · NC6OEM-B-7 · NC7OEM-B-8 · NC8OEM-B-9 · Power source 2 (main relay)9OEM-B-10 · Power ground 210OEM-B-11 · Injector 111OEM-B-12 · VTEC solenoid12OEM-B-13 · NC13OEM-B-14 · NC14OEM-B-15 · NC15OEM-B-16 · NC16OEM-B-17 · NC17OEM-B-18 · NC18OEM-B-19 · NC19OEM-B-20 · Ground20OEM-B-21 · Backup power (battery constant)21OEM-B-22 · Ground22OEM-B-23 · Idle air control valve23OEM-B-24 · NC24OEM-B-25 · NC25
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Power source 1 (main relay)—W1—0.85SP-14V-1———
2Power ground 1—W5—0.85SP-GND-1———
3Injector 2—W40—0.5PROTEUS-Black35-15———
4Injector 3—W41—0.5PROTEUS-Black35-4———
5Injector 4—W42—0.5PROTEUS-Black35-16———
6NC————————
7NC————————
8NC————————
9Power source 2 (main relay)—W2—0.85SP-14V-1———
10Power ground 2—W4—0.85SP-GND-1———
11Injector 1—W39—0.5PROTEUS-Black35-3———
12VTEC solenoid—W48—0.5PROTEUS-Black35-2———
13NC————————
14NC————————
15NC————————
16NC————————
17NC————————
18NC————————
19NC————————
20Ground—W6—0.85SP-GND-1———
21Backup power (battery constant)————————
22Ground—W7—0.85SP-GND-1———
23Idle air control valve—W51—0.5PROTEUS-Black35-5———
24NC————————
25NC————————

OEM-C

Mating face
OEM-C-1 · Primary O2 heater1OEM-C-2 · Alternator control2OEM-C-3 · Knock sensor3OEM-C-4 · Ignition coil 14OEM-C-5 · Alternator FR signal5OEM-C-6 · NC6OEM-C-7 · Sensor ground 17OEM-C-8 · Crank sensor + (CKP+)8OEM-C-9 · Crank sensor − (CKP−)9OEM-C-10 · VTEC pressure switch10OEM-C-11 · Secondary O2 heater control11OEM-C-12 · Ignition coil 212OEM-C-13 · Ignition coil 313OEM-C-14 · Ignition coil 414OEM-C-15 · Secondary O2 sensor15OEM-C-16 · Primary O2 sensor16OEM-C-17 · MAP sensor17OEM-C-18 · Sensor ground 218OEM-C-19 · Sensor 5V supply 1 (MAP)19OEM-C-20 · Cam (TDC1) sensor +20OEM-C-21 · Cam (TDC1) sensor −21OEM-C-22 · Knock sensor22OEM-C-23 · NC23OEM-C-24 · Air pump electric current sensor24OEM-C-25 · Intake air temp sensor25OEM-C-26 · Coolant temp sensor26OEM-C-27 · Throttle position sensor27OEM-C-28 · Sensor 5V supply 228OEM-C-29 · Cam (TDC2) sensor +29OEM-C-30 · Cam (TDC2) sensor −30OEM-C-31 · Timing ground31
Wire side
OEM-C-1 · Primary O2 heater1OEM-C-2 · Alternator control2OEM-C-3 · Knock sensor3OEM-C-4 · Ignition coil 14OEM-C-5 · Alternator FR signal5OEM-C-6 · NC6OEM-C-7 · Sensor ground 17OEM-C-8 · Crank sensor + (CKP+)8OEM-C-9 · Crank sensor − (CKP−)9OEM-C-10 · VTEC pressure switch10OEM-C-11 · Secondary O2 heater control11OEM-C-12 · Ignition coil 212OEM-C-13 · Ignition coil 313OEM-C-14 · Ignition coil 414OEM-C-15 · Secondary O2 sensor15OEM-C-16 · Primary O2 sensor16OEM-C-17 · MAP sensor17OEM-C-18 · Sensor ground 218OEM-C-19 · Sensor 5V supply 1 (MAP)19OEM-C-20 · Cam (TDC1) sensor +20OEM-C-21 · Cam (TDC1) sensor −21OEM-C-22 · Knock sensor22OEM-C-23 · NC23OEM-C-24 · Air pump electric current sensor24OEM-C-25 · Intake air temp sensor25OEM-C-26 · Coolant temp sensor26OEM-C-27 · Throttle position sensor27OEM-C-28 · Sensor 5V supply 228OEM-C-29 · Cam (TDC2) sensor +29OEM-C-30 · Cam (TDC2) sensor −30OEM-C-31 · Timing ground31
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Primary O2 heater—W49—0.5PROTEUS-Black35-12———
2Alternator control—W59—0.5PROTEUS-Black23-8———
3Knock sensor————————
4Ignition coil 1—W35—0.5PROTEUS-Black35-35———
5Alternator FR signal—W71—0.5PROTEUS-Black23-10———
6NC————————
7Sensor ground 1—W17—0.5SP-0V-1———
8Crank sensor + (CKP+)—W31—0.5PROTEUS-Black23-5———
9Crank sensor − (CKP−)—W30—0.5PROTEUS-Black23-13———
10VTEC pressure switch—W76—0.5PROTEUS-White35-28———
11Secondary O2 heater control—W50—0.5PROTEUS-Black35-23———
12Ignition coil 2—W36—0.5PROTEUS-Black35-34———
13Ignition coil 3—W37—0.5PROTEUS-Black35-22———
14Ignition coil 4—W38—0.5PROTEUS-Black35-33———
15Secondary O2 sensor—W63—0.5PROTEUS-White35-25———
16Primary O2 sensor—W64—0.5PROTEUS-White35-15———
17MAP sensor—W60—0.5PROTEUS-White35-13———
18Sensor ground 2—W14—0.5SP-0V-1———
19Sensor 5V supply 1 (MAP)—W28—0.5PROTEUS-White35-10———
20Cam (TDC1) sensor +—W33—0.5PROTEUS-Black23-4———
21Cam (TDC1) sensor −—W32—0.5PROTEUS-Black23-12———
22Knock sensor————————
23NC————————
24Air pump electric current sensor—W69—0.5PROTEUS-White35-27———
25Intake air temp sensor—W66—0.5PROTEUS-White35-30———
26Coolant temp sensor—W65—0.5PROTEUS-White35-20———
27Throttle position sensor—W61—0.5PROTEUS-White35-24———
28Sensor 5V supply 2—W29—0.5PROTEUS-White35-21———
29Cam (TDC2) sensor +—W34—0.5PROTEUS-Black23-1———
30Cam (TDC2) sensor −—W15—0.5SP-0V-1———
31Timing ground—W16—0.5SP-0V-1———

OEM-D

Mating face
OEM-D-1 · NC1OEM-D-2 · NC2OEM-D-3 · NC3OEM-D-4 · NC4OEM-D-5 · NC5OEM-D-6 · NC6OEM-D-7 · NC7OEM-D-8 · NC8OEM-D-9 · NC9OEM-D-10 · NC10OEM-D-11 · NC11OEM-D-12 · NC12OEM-D-13 · NC13OEM-D-14 · NC14OEM-D-15 · NC15OEM-D-16 · NC16
Wire side
OEM-D-1 · NC1OEM-D-2 · NC2OEM-D-3 · NC3OEM-D-4 · NC4OEM-D-5 · NC5OEM-D-6 · NC6OEM-D-7 · NC7OEM-D-8 · NC8OEM-D-9 · NC9OEM-D-10 · NC10OEM-D-11 · NC11OEM-D-12 · NC12OEM-D-13 · NC13OEM-D-14 · NC14OEM-D-15 · NC15OEM-D-16 · NC16
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1NC————————
2NC————————
3NC————————
4NC————————
5NC————————
6NC————————
7NC————————
8NC————————
9NC————————
10NC————————
11NC————————
12NC————————
13NC————————
14NC————————
15NC————————
16NC————————

PROTEUS-Black23

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Digital 2—W34—0.5OEM-C-29———
10Digital 1—W71—0.5OEM-C-5———
11Digital 6—W74—0.5OEM-A-27———
12VR 2 negative—W32—0.5OEM-C-21———
13VR 1 negative—W30—0.5OEM-C-9———
14Power ground—W8—0.85SP-GND-1———
15ETB 2 positive—W58—0.5OEM-A-6———
16CAN 1 Low————————
17CAN 1 High————————
18Ignition switch in————————
19Power ground—W9—0.85SP-GND-1———
2Digital 3—W70—0.5OEM-A-9———
20Power ground—W10—0.85SP-GND-1———
21CAN 2 Low————————
22CAN 2 High————————
23Main relay feed—W3—0.85SP-14V-1———
3Digital 4—W72—0.5OEM-A-24———
4VR 2 positive—W33—0.5OEM-C-20———
5VR 1 positive—W31—0.5OEM-C-8———
6ETB 1 negative—W56—0.5OEM-A-3———
7ETB 1 positive—W57—0.5OEM-A-4———
8ETB 2 negative—W59—0.5OEM-C-2———
9Digital 5—W73—0.5OEM-A-26———

PROTEUS-Black35

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Highside 2————————
10Lowside 13—W46—0.5OEM-A-20———
11Lowside 14—W47—0.5OEM-A-28———
12Lowside 15—W49—0.5OEM-C-1———
13Highside 3————————
14Highside 4————————
15Injector 2—W40—0.5OEM-B-3———
16Injector 4—W42—0.5OEM-B-5———
17Power ground—W11—0.85SP-GND-1———
18Power ground—W12—0.85SP-GND-1———
19Injector 8—W54—0.5OEM-A-18———
2Highside 1—W48—0.5OEM-B-12———
20Lowside 10—W43—0.5OEM-A-15———
21Lowside 12—W45—0.5OEM-A-17———
22Ignition 3—W37—0.5OEM-C-13———
23Lowside 16—W50—0.5OEM-C-11———
24Power ground—W13—0.85SP-GND-1———
25Ignition 12————————
26Ignition 11————————
27Ignition 10————————
28Ignition 9————————
29Ignition 8————————
3Injector 1—W39—0.5OEM-B-11———
30Ignition 7————————
31Ignition 6————————
32Ignition 5————————
33Ignition 4—W38—0.5OEM-C-14———
34Ignition 2—W36—0.5OEM-C-12———
35Ignition 1—W35—0.5OEM-C-4———
4Injector 3—W41—0.5OEM-B-4———
5Injector 5—W51—0.5OEM-B-23———
6Injector 6—W52—0.5OEM-A-1———
7Injector 7—W53—0.5OEM-A-12———
8Injector 9—W55—0.5OEM-A-2———
9Lowside 11—W44—0.5OEM-A-16———

PROTEUS-White35

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Sensor ground—W18—0.5SP-0V-1———
105V supply #2—W28—0.5OEM-C-19———
1112V sensor supply————————
1212V sensor supply————————
13Analog Volt 1—W60—0.5OEM-C-17———
14Analog Volt 3—W62—0.5OEM-A-23———
15Analog Volt 5—W64—0.5OEM-C-16———
16Analog Volt 7—W68—0.5OEM-A-30———
17Analog Volt 9—W75—0.5OEM-A-32———
18Analog Volt 11————————
19Thermistor 1————————
2Sensor ground—W19—0.5SP-0V-1———
20Coolant temp (CLT)—W65—0.5OEM-C-26———
215V supply #1—W29—0.5OEM-C-28———
225V supply #2————————
23Sensor ground—W20—0.5SP-0V-1———
24Analog Volt 2—W61—0.5OEM-C-27———
25Analog Volt 4—W63—0.5OEM-C-15———
26Analog Volt 6—W67—0.5OEM-A-29———
27Analog Volt 8—W69—0.5OEM-C-24———
28Analog Volt 10—W76—0.5OEM-C-10———
29Sensor ground—W21—0.5SP-0V-1———
3Sensor ground—W22—0.5SP-0V-1———
30Intake air temp (IAT)—W66—0.5OEM-C-25———
31Thermistor 4————————
325V supply #1————————
335V supply #2————————
34Knock 1————————
35Knock 2————————
4Sensor ground—W23—0.5SP-0V-1———
5Sensor ground—W24—0.5SP-0V-1———
6Sensor ground—W25—0.5SP-0V-1———
7Sensor ground—W26—0.5SP-0V-1———
8Sensor ground—W27—0.5SP-0V-1———
95V supply #1————————

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W14—0.5OEM-C-18———
1——W15—0.5OEM-C-30———
1——W16—0.5OEM-C-31———
1——W17—0.5OEM-C-7———
1——W18—0.5PROTEUS-White35-1———
1——W19—0.5PROTEUS-White35-2———
1——W20—0.5PROTEUS-White35-23———
1——W21—0.5PROTEUS-White35-29———
1——W22—0.5PROTEUS-White35-3———
1——W23—0.5PROTEUS-White35-4———
1——W24—0.5PROTEUS-White35-5———
1——W25—0.5PROTEUS-White35-6———
1——W26—0.5PROTEUS-White35-7———
1——W27—0.5PROTEUS-White35-8———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-B-1———
1——W2—0.85OEM-B-9———
1——W3—0.85PROTEUS-Black23-23———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W4—0.85OEM-B-10———
1——W5—0.85OEM-B-2———
1——W6—0.85OEM-B-20———
1——W7—0.85OEM-B-22———
1——W8—0.85PROTEUS-Black23-14———
1——W9—0.85PROTEUS-Black23-19———
1——W10—0.85PROTEUS-Black23-20———
1——W11—0.85PROTEUS-Black35-17———
1——W12—0.85PROTEUS-Black35-18———
1——W13—0.85PROTEUS-Black35-24———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-A-1Coolant temp gauge drivelow_side_outPROTEUS-Black35-6Injector 6injector_outcorroborated
OEM-A-10Service check signal————single_source
OEM-A-11NC————unverified
OEM-A-12Immobilizer indicator lightlow_side_outPROTEUS-Black35-7Injector 7injector_outsingle_source
OEM-A-13Immobilizer enable signal————single_source
OEM-A-14NC————unverified
OEM-A-15Fuel pump relay (USDM)low_side_outPROTEUS-Black35-20Lowside 10low_side_outcorroborated
OEM-A-16Fuel pump relay (JDM)low_side_outPROTEUS-Black35-9Lowside 11low_side_outsingle_source
OEM-A-17A/C clutch relaylow_side_outPROTEUS-Black35-21Lowside 12low_side_outcorroborated
OEM-A-18Check engine light (MIL)low_side_outPROTEUS-Black35-19Injector 8injector_outcorroborated
OEM-A-19Tacho outputtacho_out———corroborated
OEM-A-2Air control valve solenoidlow_side_outPROTEUS-Black35-8Injector 9injector_outsingle_source
OEM-A-20Radiator fan relaylow_side_outPROTEUS-Black35-10Lowside 13low_side_outcorroborated
OEM-A-21K-Lineserial———single_source
OEM-A-22NC————unverified
OEM-A-23Secondary O2 sensorlambda_nb_inPROTEUS-White35-14Analog Volt 3analog_insingle_source
OEM-A-24Starter switch signaldigital_inPROTEUS-Black23-3Digital 4digital_incorroborated
OEM-A-25Immobilizer code————single_source
OEM-A-26Power steering load detectdigital_inPROTEUS-Black23-9Digital 5digital_incorroborated
OEM-A-27A/C switch (request)digital_inPROTEUS-Black23-11Digital 6digital_incorroborated
OEM-A-28Air pump relaylow_side_outPROTEUS-Black35-11Lowside 14low_side_outcorroborated
OEM-A-29Fuel tank pressure sensoranalog_inPROTEUS-White35-26Analog Volt 6analog_incorroborated
OEM-A-3Evap bypass solenoidlow_side_outPROTEUS-Black23-6ETB 1 negativehbridge_outsingle_source
OEM-A-30Electrical load detectoranalog_inPROTEUS-White35-16Analog Volt 7analog_incorroborated
OEM-A-31NC————unverified
OEM-A-32Brake switchdigital_inPROTEUS-White35-17Analog Volt 9analog_incorroborated
OEM-A-4Evap canister vent shut valvelow_side_outPROTEUS-Black23-7ETB 1 positivehbridge_outsingle_source
OEM-A-5NC————unverified
OEM-A-6Evap canister purge valvelow_side_outPROTEUS-Black23-15ETB 2 positivehbridge_outsingle_source
OEM-A-7NC————unverified
OEM-A-8NC————unverified
OEM-A-9Vehicle speed sensordigital_inPROTEUS-Black23-2Digital 3digital_incorroborated
OEM-B-1Power source 1 (main relay)power_inPROTEUS-Black23-23Main relay feedpower_incorroborated
OEM-B-10Power ground 2groundPROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24Power ground + Power ground + Power ground + Power ground + Power ground + Power groundgroundsingle_source
OEM-B-11Injector 1injector_outPROTEUS-Black35-3Injector 1injector_outcorroborated
OEM-B-12VTEC solenoidhigh_side_outPROTEUS-Black35-2Highside 1high_side_outcorroborated
OEM-B-13NC————unverified
OEM-B-14NC————unverified
OEM-B-15NC————unverified
OEM-B-16NC————unverified
OEM-B-17NC————unverified
OEM-B-18NC————unverified
OEM-B-19NC————unverified
OEM-B-2Power ground 1groundPROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24Power ground + Power ground + Power ground + Power ground + Power ground + Power groundgroundcorroborated
OEM-B-20GroundgroundPROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24Power ground + Power ground + Power ground + Power ground + Power ground + Power groundgroundsingle_source
OEM-B-21Backup power (battery constant)power_in———single_source
OEM-B-22GroundgroundPROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24Power ground + Power ground + Power ground + Power ground + Power ground + Power groundgroundsingle_source
OEM-B-23Idle air control valvelow_side_outPROTEUS-Black35-5Injector 5injector_outcorroborated
OEM-B-24NC————unverified
OEM-B-25NC————unverified
OEM-B-3Injector 2injector_outPROTEUS-Black35-15Injector 2injector_outcorroborated
OEM-B-4Injector 3injector_outPROTEUS-Black35-4Injector 3injector_outcorroborated
OEM-B-5Injector 4injector_outPROTEUS-Black35-16Injector 4injector_outcorroborated
OEM-B-6NC————unverified
OEM-B-7NC————unverified
OEM-B-8NC————unverified
OEM-B-9Power source 2 (main relay)power_inPROTEUS-Black23-23Main relay feedpower_incorroborated
OEM-C-1Primary O2 heaterlow_side_outPROTEUS-Black35-12Lowside 15low_side_outcorroborated
OEM-C-10VTEC pressure switchdigital_inPROTEUS-White35-28Analog Volt 10analog_incorroborated
OEM-C-11Secondary O2 heater controllow_side_outPROTEUS-Black35-23Lowside 16low_side_outsingle_source
OEM-C-12Ignition coil 2ignition_outPROTEUS-Black35-34Ignition 2ignition_outcorroborated
OEM-C-13Ignition coil 3ignition_outPROTEUS-Black35-22Ignition 3ignition_outcorroborated
OEM-C-14Ignition coil 4ignition_outPROTEUS-Black35-33Ignition 4ignition_outcorroborated
OEM-C-15Secondary O2 sensorlambda_nb_inPROTEUS-White35-25Analog Volt 4analog_incorroborated
OEM-C-16Primary O2 sensorlambda_nb_inPROTEUS-White35-15Analog Volt 5analog_incorroborated
OEM-C-17MAP sensoranalog_inPROTEUS-White35-13Analog Volt 1analog_incorroborated
OEM-C-18Sensor ground 2sensor_groundPROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor groundsensor_groundcorroborated
OEM-C-19Sensor 5V supply 1 (MAP)vrefPROTEUS-White35-105V supply #2vrefcorroborated
OEM-C-2Alternator controllow_side_outPROTEUS-Black23-8ETB 2 negativehbridge_outsingle_source
OEM-C-20Cam (TDC1) sensor +trigger_inPROTEUS-Black23-4VR 2 positivetrigger_incorroborated
OEM-C-21Cam (TDC1) sensor −trigger_inPROTEUS-Black23-12VR 2 negativetrigger_incorroborated
OEM-C-22Knock sensorknock_in———conflict
OEM-C-23NC————unverified
OEM-C-24Air pump electric current sensoranalog_inPROTEUS-White35-27Analog Volt 8analog_insingle_source
OEM-C-25Intake air temp sensortemp_inPROTEUS-White35-30Intake air temp (IAT)temp_incorroborated
OEM-C-26Coolant temp sensortemp_inPROTEUS-White35-20Coolant temp (CLT)temp_incorroborated
OEM-C-27Throttle position sensoranalog_inPROTEUS-White35-24Analog Volt 2analog_incorroborated
OEM-C-28Sensor 5V supply 2vrefPROTEUS-White35-215V supply #1vrefcorroborated
OEM-C-29Cam (TDC2) sensor +trigger_inPROTEUS-Black23-1Digital 2trigger_incorroborated
OEM-C-3Knock sensorknock_in———conflict
OEM-C-30Cam (TDC2) sensor −sensor_groundPROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor groundsensor_groundcorroborated
OEM-C-31Timing groundsensor_groundPROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor groundsensor_groundsingle_source
OEM-C-4Ignition coil 1ignition_outPROTEUS-Black35-35Ignition 1ignition_outcorroborated
OEM-C-5Alternator FR signaldigital_inPROTEUS-Black23-10Digital 1digital_insingle_source
OEM-C-6NC————unverified
OEM-C-7Sensor ground 1sensor_groundPROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor groundsensor_groundcorroborated
OEM-C-8Crank sensor + (CKP+)trigger_inPROTEUS-Black23-5VR 1 positivetrigger_incorroborated
OEM-C-9Crank sensor − (CKP−)trigger_inPROTEUS-Black23-13VR 1 negativetrigger_incorroborated
OEM-D-1NC————unverified
OEM-D-10NC————unverified
OEM-D-11NC————unverified
OEM-D-12NC————unverified
OEM-D-13NC————unverified
OEM-D-14NC————unverified
OEM-D-15NC————unverified
OEM-D-16NC————unverified
OEM-D-2NC————unverified
OEM-D-3NC————unverified
OEM-D-4NC————unverified
OEM-D-5NC————unverified
OEM-D-6NC————unverified
OEM-D-7NC————unverified
OEM-D-8NC————unverified
OEM-D-9NC————unverified

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-B-1SP-14V-10.85no routePower source 1 (main relay)—
W2OEM-B-9SP-14V-10.85no routePower source 2 (main relay)—
W3SP-14V-1PROTEUS-Black23-230.85no routeMain relay feed—
W4OEM-B-10SP-GND-10.85no routePower ground 2—
W5OEM-B-2SP-GND-10.85no routePower ground 1—
W6OEM-B-20SP-GND-10.85no routeGround—
W7OEM-B-22SP-GND-10.85no routeGround—
W8SP-GND-1PROTEUS-Black23-140.85no routePower ground—
W9SP-GND-1PROTEUS-Black23-190.85no routePower ground—
W10SP-GND-1PROTEUS-Black23-200.85no routePower ground—
W11SP-GND-1PROTEUS-Black35-170.85no routePower ground—
W12SP-GND-1PROTEUS-Black35-180.85no routePower ground—
W13SP-GND-1PROTEUS-Black35-240.85no routePower ground—
W14OEM-C-18SP-0V-10.5no routeSensor ground 2—
W15OEM-C-30SP-0V-10.5no routeCam (TDC2) sensor −—
W16OEM-C-31SP-0V-10.5no routeTiming ground—
W17OEM-C-7SP-0V-10.5no routeSensor ground 1—
W18SP-0V-1PROTEUS-White35-10.5no routeSensor ground—
W19SP-0V-1PROTEUS-White35-20.5no routeSensor ground—
W20SP-0V-1PROTEUS-White35-230.5no routeSensor ground—
W21SP-0V-1PROTEUS-White35-290.5no routeSensor ground—
W22SP-0V-1PROTEUS-White35-30.5no routeSensor ground—
W23SP-0V-1PROTEUS-White35-40.5no routeSensor ground—
W24SP-0V-1PROTEUS-White35-50.5no routeSensor ground—
W25SP-0V-1PROTEUS-White35-60.5no routeSensor ground—
W26SP-0V-1PROTEUS-White35-70.5no routeSensor ground—
W27SP-0V-1PROTEUS-White35-80.5no routeSensor ground—
W28OEM-C-19PROTEUS-White35-100.5no routeSensor 5V supply 1 (MAP)—
W29OEM-C-28PROTEUS-White35-210.5no routeSensor 5V supply 2—
W30OEM-C-9PROTEUS-Black23-130.5no routeCrank sensor − (CKP−)—
W31OEM-C-8PROTEUS-Black23-50.5no routeCrank sensor + (CKP+)—
W32OEM-C-21PROTEUS-Black23-120.5no routeCam (TDC1) sensor −—
W33OEM-C-20PROTEUS-Black23-40.5no routeCam (TDC1) sensor +—
W34OEM-C-29PROTEUS-Black23-10.5no routeCam (TDC2) sensor +—
W35OEM-C-4PROTEUS-Black35-350.5no routeIgnition coil 1—
W36OEM-C-12PROTEUS-Black35-340.5no routeIgnition coil 2—
W37OEM-C-13PROTEUS-Black35-220.5no routeIgnition coil 3—
W38OEM-C-14PROTEUS-Black35-330.5no routeIgnition coil 4—
W39OEM-B-11PROTEUS-Black35-30.5no routeInjector 1—
W40OEM-B-3PROTEUS-Black35-150.5no routeInjector 2—
W41OEM-B-4PROTEUS-Black35-40.5no routeInjector 3—
W42OEM-B-5PROTEUS-Black35-160.5no routeInjector 4—
W43OEM-A-15PROTEUS-Black35-200.5no routeFuel pump relay (USDM)—
W44OEM-A-16PROTEUS-Black35-90.5no routeFuel pump relay (JDM)—
W45OEM-A-17PROTEUS-Black35-210.5no routeA/C clutch relay—
W46OEM-A-20PROTEUS-Black35-100.5no routeRadiator fan relay—
W47OEM-A-28PROTEUS-Black35-110.5no routeAir pump relay—
W48OEM-B-12PROTEUS-Black35-20.5no routeVTEC solenoid—
W49OEM-C-1PROTEUS-Black35-120.5no routePrimary O2 heater—
W50OEM-C-11PROTEUS-Black35-230.5no routeSecondary O2 heater control—
W51OEM-B-23PROTEUS-Black35-50.5no routeIdle air control valve—
W52OEM-A-1PROTEUS-Black35-60.5no routeCoolant temp gauge drive—
W53OEM-A-12PROTEUS-Black35-70.5no routeImmobilizer indicator light—
W54OEM-A-18PROTEUS-Black35-190.5no routeCheck engine light (MIL)—
W55OEM-A-2PROTEUS-Black35-80.5no routeAir control valve solenoid—
W56OEM-A-3PROTEUS-Black23-60.5no routeEvap bypass solenoid—
W57OEM-A-4PROTEUS-Black23-70.5no routeEvap canister vent shut valve—
W58OEM-A-6PROTEUS-Black23-150.5no routeEvap canister purge valve—
W59OEM-C-2PROTEUS-Black23-80.5no routeAlternator control—
W60OEM-C-17PROTEUS-White35-130.5no routeMAP sensor—
W61OEM-C-27PROTEUS-White35-240.5no routeThrottle position sensor—
W62OEM-A-23PROTEUS-White35-140.5no routeSecondary O2 sensor—
W63OEM-C-15PROTEUS-White35-250.5no routeSecondary O2 sensor—
W64OEM-C-16PROTEUS-White35-150.5no routePrimary O2 sensor—
W65OEM-C-26PROTEUS-White35-200.5no routeCoolant temp sensor—
W66OEM-C-25PROTEUS-White35-300.5no routeIntake air temp sensor—
W67OEM-A-29PROTEUS-White35-260.5no routeFuel tank pressure sensor—
W68OEM-A-30PROTEUS-White35-160.5no routeElectrical load detector—
W69OEM-C-24PROTEUS-White35-270.5no routeAir pump electric current sensor—
W70OEM-A-9PROTEUS-Black23-20.5no routeVehicle speed sensor—
W71OEM-C-5PROTEUS-Black23-100.5no routeAlternator FR signal—
W72OEM-A-24PROTEUS-Black23-30.5no routeStarter switch signal—
W73OEM-A-26PROTEUS-Black23-90.5no routePower steering load detect—
W74OEM-A-27PROTEUS-Black23-110.5no routeA/C switch (request)—
W75OEM-A-32PROTEUS-White35-170.5no routeBrake switch—
W76OEM-C-10PROTEUS-White35-280.5no routeVTEC pressure switch—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit
connectorS2K-0005-ECU-AHondaS2000 2000–05 ECU harness plug A (32P, TE 179681-6)1.000ea
connectorS2K-0005-ECU-BHondaS2000 2000–05 ECU harness plug B (25P, TE 179679-6)1.000ea
connectorS2K-0005-ECU-CHondaS2000 2000–05 ECU harness plug C (31P, TE 179680-5)1.000ea
connectorS2K-0005-ECU-DHondaS2000 2000–05 ECU plug D (P/N unknown)1.000ea

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (12)

SeverityCodeSubjectMessage
warnNET_FAMILYOEM-A-32 ↔ PROTEUS-White35-17OEM-A-32 "Brake switch" [digital_in] is wired to PROTEUS-White35-17 "Analog Volt 9" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-A-3 ↔ PROTEUS-Black23-6OEM-A-3 "Evap bypass solenoid" [low_side_out] is wired to PROTEUS-Black23-6 "ETB 1 negative" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-A-4 ↔ PROTEUS-Black23-7OEM-A-4 "Evap canister vent shut valve" [low_side_out] is wired to PROTEUS-Black23-7 "ETB 1 positive" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-A-6 ↔ PROTEUS-Black23-15OEM-A-6 "Evap canister purge valve" [low_side_out] is wired to PROTEUS-Black23-15 "ETB 2 positive" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-C-10 ↔ PROTEUS-White35-28OEM-C-10 "VTEC pressure switch" [digital_in] is wired to PROTEUS-White35-28 "Analog Volt 10" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-C-2 ↔ PROTEUS-Black23-8OEM-C-2 "Alternator control" [low_side_out] is wired to PROTEUS-Black23-8 "ETB 2 negative" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
infoNET_FAMILYOEM-A-12 ↔ PROTEUS-Black35-7OEM-A-12 "Immobilizer indicator light" [low_side_out] is wired to PROTEUS-Black35-7 "Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-A-18 ↔ PROTEUS-Black35-19OEM-A-18 "Check engine light (MIL)" [low_side_out] is wired to PROTEUS-Black35-19 "Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-A-1 ↔ PROTEUS-Black35-6OEM-A-1 "Coolant temp gauge drive" [low_side_out] is wired to PROTEUS-Black35-6 "Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-A-2 ↔ PROTEUS-Black35-8OEM-A-2 "Air control valve solenoid" [low_side_out] is wired to PROTEUS-Black35-8 "Injector 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-23 ↔ PROTEUS-Black35-5OEM-B-23 "Idle air control valve" [low_side_out] is wired to PROTEUS-Black35-5 "Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM8 optional OEM pins are not mapped: OEM-A-10 Service check signal; OEM-A-13 Immobilizer enable signal; OEM-A-19 Tacho output; OEM-A-21 K-Line; OEM-A-25 Immobilizer code; OEM-B-21 Backup power (battery constant); OEM-C-22 Knock sensor; OEM-C-3 Knock sensor

Accepted (0)

CodeSubjectReasonBy

Notes

Auto-mapped by auto_map() from the library pin data on 2026-10-04. Review every wire against both manuals before building. Not wired: - OEM-B 21: Backup power (battery constant): rusEFI Proteus has no battery-constant input; not needed - OEM-C 3: Knock sensor: 2 stock pins named "Knock sensor" without a documented polarity / pairing; wire by hand - OEM-C 22: Knock sensor: 2 stock pins named "Knock sensor" without a documented polarity / pairing; wire by hand - OEM-A 19: Tacho output: no free tacho/frequency_out/low_side/ls_hs on rusEFI Proteus - OEM-A 21: K-Line: no free k_line on rusEFI Proteus - OEM-A 10: Service check signal: not classified in the library; wire by hand - OEM-A 13: Immobilizer enable signal: not classified in the library; wire by hand - OEM-A 25: Immobilizer code: not classified in the library; wire by hand - PROTEUS-Black23 18: Ignition switch in: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source

Sources

ReliabilityKindTitleURL
4vendor_docAEM 30-6052 Series 2 Plug & Play EMS, 2000–2005 S2000 (original ECU pinout)https://documents.aemelectronics.com/techlibrary_30-6052_series_2_plug___play_ems.pdf
4vendor_docHaltech KB: F20C (AP1) enginehttps://support.haltech.com/portal/en/kb/articles/f20c-ap1-engine
4vendor_docLink S2000 AP1 PlugIn installation manualhttps://linkecu.com/documentation/S2000X.pdf
4vendor_docrusEFI Proteus — board connector definitions (Black35 / White35 / Black23)https://github.com/rusefi/rusefi/tree/master/firmware/config/boards/proteus/connectors
2forumAllPinouts: 2000–2005 Honda S2000 ECUhttps://allpinouts.org/pinouts/connectors/car/2000-2005-honda-s2000-ecu/
2forumAutodata blog: ECU Pinout Honda S2000 2000-2004http://autodatas.blogspot.com/2012/11/ecu-pinout-honda-s2000-2000-2004.html
2derivedTypical load estimates (relay coil ~0.2 A, high-Z injector ~1.2 A, VVT solenoid ~1 A)—