AP1 2000–03 (F20C) → Haltech Elite 2500 HT-151300 (auto)
AP1 2000–03 (F20C) — Haltech — Elite 2500
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-04
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
ELITE2500-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | DPO 2 | — | W35 | — | 0.5 | OEM-A-20 | — | — | — |
| 10 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +8V DC | — | — | — | — | — | — | — | — |
| 13 | 12V ignition input | — | — | — | — | — | — | — | — |
| 14 | AVI 10 (TPS) | — | W57 | — | 0.5 | OEM-C-24 | — | — | — |
| 15 | AVI 9 (MAP) | — | W56 | — | 0.5 | OEM-A-30 | — | — | — |
| 16 | AVI 2 | — | W49 | — | 0.5 | OEM-C-27 | — | — | — |
| 17 | AVI 3 | — | W50 | — | 0.5 | OEM-A-23 | — | — | — |
| 18 | DPO 1 | — | W34 | — | 0.5 | OEM-A-17 | — | — | — |
| 19 | INJ 1 | — | W28 | — | 0.5 | OEM-B-11 | — | — | — |
| 2 | AVI 4 | — | W51 | — | 0.5 | OEM-C-15 | — | — | — |
| 20 | INJ 2 | — | W29 | — | 0.5 | OEM-B-3 | — | — | — |
| 21 | INJ 3 | — | W30 | — | 0.5 | OEM-B-4 | — | — | — |
| 22 | INJ 4 | — | W31 | — | 0.5 | OEM-B-5 | — | — | — |
| 23 | DPO 3 | — | W36 | — | 0.5 | OEM-A-28 | — | — | — |
| 24 | DPO 5 (fuel pump trigger) | — | W33 | — | 0.5 | OEM-A-16 | — | — | — |
| 25 | DPO 6 (ECR OUT) | — | W32 | — | 0.5 | OEM-A-15 | — | — | — |
| 26 | ECU injector power input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 27 | INJ 5 | — | W42 | — | 0.5 | OEM-A-12 | — | — | — |
| 28 | INJ 6 | — | W43 | — | 0.5 | OEM-A-18 | — | — | — |
| 29 | INJ 7 | — | W44 | — | 0.5 | OEM-A-2 | — | — | — |
| 3 | IGN 1 | — | W24 | — | 0.5 | OEM-C-4 | — | — | — |
| 30 | INJ 8 | — | W45 | — | 0.5 | OEM-A-3 | — | — | — |
| 31 | Stepper 1 P1 / DPO | — | W37 | — | 0.5 | OEM-B-12 | — | — | — |
| 32 | Stepper 1 P2 / DPO | — | W39 | — | 0.5 | OEM-C-11 | — | — | — |
| 33 | Stepper 1 P3 / DPO | — | W40 | — | 0.5 | OEM-B-23 | — | — | — |
| 34 | Stepper 1 P4 / DPO | — | W41 | — | 0.5 | OEM-A-1 | — | — | — |
| 4 | IGN 2 | — | W25 | — | 0.5 | OEM-C-12 | — | — | — |
| 5 | IGN 3 | — | W26 | — | 0.5 | OEM-C-13 | — | — | — |
| 6 | IGN 4 | — | W27 | — | 0.5 | OEM-C-14 | — | — | — |
| 7 | IGN 5 | — | — | — | — | — | — | — | — |
| 8 | IGN 6 | — | — | — | — | — | — | — | — |
| 9 | +5V DC | — | W18 | — | 0.5 | OEM-C-19 | — | — | — |
ELITE2500-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Crank (Trigger) (+) | — | W20 | — | 0.5 | OEM-C-8 | — | — | — |
| 10 | SPI 3 | — | W59 | — | 0.5 | OEM-C-5 | — | — | — |
| 11 | +13.8V ECU supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 12 | AVI 6 (O2 Input 1) | — | W55 | — | 0.5 | OEM-A-29 | — | — | — |
| 13 | AVI 1 (O2 Input 2) | — | W48 | — | 0.5 | OEM-C-17 | — | — | — |
| 14 | Signal ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Signal ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Signal ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | IGN 7 | — | — | — | — | — | — | — | — |
| 18 | IGN 8 | — | — | — | — | — | — | — | — |
| 19 | DPO 4 | — | W38 | — | 0.5 | OEM-C-1 | — | — | — |
| 2 | Cam (Home) (+) | — | W22 | — | 0.5 | OEM-C-20 | — | — | — |
| 20 | AVI 5 | — | W52 | — | 0.5 | OEM-C-16 | — | — | — |
| 21 | KNOCK 1 | — | — | — | — | — | — | — | — |
| 22 | KNOCK 2 | — | — | — | — | — | — | — | — |
| 23 | CAN H | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | — | — | — | — | — | — | — |
| 25 | DBW 1 / DPO | — | W46 | — | 0.5 | OEM-A-4 | — | — | — |
| 26 | DBW 2 / DPO | — | W47 | — | 0.5 | OEM-A-6 | — | — | — |
| 3 | AVI 7 (Air Temp) | — | W54 | — | 0.5 | OEM-C-25 | — | — | — |
| 4 | AVI 8 (Coolant Temp) | — | W53 | — | 0.5 | OEM-C-26 | — | — | — |
| 5 | Crank (Trigger) (−) | — | W19 | — | 0.5 | OEM-C-9 | — | — | — |
| 6 | Cam (Home) (−) | — | W21 | — | 0.5 | OEM-C-21 | — | — | — |
| 7 | SPI 4 | — | W60 | — | 0.5 | OEM-A-24 | — | — | — |
| 8 | SPI 1 | — | W23 | — | 0.5 | OEM-C-29 | — | — | — |
| 9 | SPI 2 | — | W58 | — | 0.5 | OEM-A-9 | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coolant temp gauge drive | — | W41 | — | 0.5 | ELITE2500-A-34 | — | — | — |
| 2 | Air control valve solenoid | — | W44 | — | 0.5 | ELITE2500-A-29 | — | — | — |
| 3 | Evap bypass solenoid | — | W45 | — | 0.5 | ELITE2500-A-30 | — | — | — |
| 4 | Evap canister vent shut valve | — | W46 | — | 0.5 | ELITE2500-B-25 | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | Evap canister purge valve | — | W47 | — | 0.5 | ELITE2500-B-26 | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Vehicle speed sensor | — | W58 | — | 0.5 | ELITE2500-B-9 | — | — | — |
| 10 | Service check signal | — | — | — | — | — | — | — | — |
| 11 | NC | — | — | — | — | — | — | — | — |
| 12 | Immobilizer indicator light | — | W42 | — | 0.5 | ELITE2500-A-27 | — | — | — |
| 13 | Immobilizer enable signal | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | Fuel pump relay (USDM) | — | W32 | — | 0.5 | ELITE2500-A-25 | — | — | — |
| 16 | Fuel pump relay (JDM) | — | W33 | — | 0.5 | ELITE2500-A-24 | — | — | — |
| 17 | A/C clutch relay | — | W34 | — | 0.5 | ELITE2500-A-18 | — | — | — |
| 18 | Check engine light (MIL) | — | W43 | — | 0.5 | ELITE2500-A-28 | — | — | — |
| 19 | Tacho output | — | — | — | — | — | — | — | — |
| 20 | Radiator fan relay | — | W35 | — | 0.5 | ELITE2500-A-1 | — | — | — |
| 21 | K-Line | — | — | — | — | — | — | — | — |
| 22 | NC | — | — | — | — | — | — | — | — |
| 23 | Secondary O2 sensor | — | W50 | — | 0.5 | ELITE2500-A-17 | — | — | — |
| 24 | Starter switch signal | — | W60 | — | 0.5 | ELITE2500-B-7 | — | — | — |
| 25 | Immobilizer code | — | — | — | — | — | — | — | — |
| 26 | Power steering load detect | — | — | — | — | — | — | — | — |
| 27 | A/C switch (request) | — | — | — | — | — | — | — | — |
| 28 | Air pump relay | — | W36 | — | 0.5 | ELITE2500-A-23 | — | — | — |
| 29 | Fuel tank pressure sensor | — | W55 | — | 0.5 | ELITE2500-B-12 | — | — | — |
| 30 | Electrical load detector | — | W56 | — | 0.5 | ELITE2500-A-15 | — | — | — |
| 31 | NC | — | — | — | — | — | — | — | — |
| 32 | Brake switch | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Power source 1 (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Power ground 1 | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Injector 2 | — | W29 | — | 0.5 | ELITE2500-A-20 | — | — | — |
| 4 | Injector 3 | — | W30 | — | 0.5 | ELITE2500-A-21 | — | — | — |
| 5 | Injector 4 | — | W31 | — | 0.5 | ELITE2500-A-22 | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | Power source 2 (main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 10 | Power ground 2 | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Injector 1 | — | W28 | — | 0.5 | ELITE2500-A-19 | — | — | — |
| 12 | VTEC solenoid | — | W37 | — | 0.5 | ELITE2500-A-31 | — | — | — |
| 13 | NC | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | NC | — | — | — | — | — | — | — | — |
| 17 | NC | — | — | — | — | — | — | — | — |
| 18 | NC | — | — | — | — | — | — | — | — |
| 19 | NC | — | — | — | — | — | — | — | — |
| 20 | Ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | Backup power (battery constant) | — | — | — | — | — | — | — | — |
| 22 | Ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 23 | Idle air control valve | — | W40 | — | 0.5 | ELITE2500-A-33 | — | — | — |
| 24 | NC | — | — | — | — | — | — | — | — |
| 25 | NC | — | — | — | — | — | — | — | — |
OEM-C
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Primary O2 heater | — | W38 | — | 0.5 | ELITE2500-B-19 | — | — | — |
| 2 | Alternator control | — | — | — | — | — | — | — | — |
| 3 | Knock sensor | — | — | — | — | — | — | — | — |
| 4 | Ignition coil 1 | — | W24 | — | 0.5 | ELITE2500-A-3 | — | — | — |
| 5 | Alternator FR signal | — | W59 | — | 0.5 | ELITE2500-B-10 | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | Sensor ground 1 | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | Crank sensor + (CKP+) | — | W20 | — | 0.5 | ELITE2500-B-1 | — | — | — |
| 9 | Crank sensor − (CKP−) | — | W19 | — | 0.5 | ELITE2500-B-5 | — | — | — |
| 10 | VTEC pressure switch | — | — | — | — | — | — | — | — |
| 11 | Secondary O2 heater control | — | W39 | — | 0.5 | ELITE2500-A-32 | — | — | — |
| 12 | Ignition coil 2 | — | W25 | — | 0.5 | ELITE2500-A-4 | — | — | — |
| 13 | Ignition coil 3 | — | W26 | — | 0.5 | ELITE2500-A-5 | — | — | — |
| 14 | Ignition coil 4 | — | W27 | — | 0.5 | ELITE2500-A-6 | — | — | — |
| 15 | Secondary O2 sensor | — | W51 | — | 0.5 | ELITE2500-A-2 | — | — | — |
| 16 | Primary O2 sensor | — | W52 | — | 0.5 | ELITE2500-B-20 | — | — | — |
| 17 | MAP sensor | — | W48 | — | 0.5 | ELITE2500-B-13 | — | — | — |
| 18 | Sensor ground 2 | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor 5V supply 1 (MAP) | — | W18 | — | 0.5 | ELITE2500-A-9 | — | — | — |
| 20 | Cam (TDC1) sensor + | — | W22 | — | 0.5 | ELITE2500-B-2 | — | — | — |
| 21 | Cam (TDC1) sensor − | — | W21 | — | 0.5 | ELITE2500-B-6 | — | — | — |
| 22 | Knock sensor | — | — | — | — | — | — | — | — |
| 23 | NC | — | — | — | — | — | — | — | — |
| 24 | Air pump electric current sensor | — | W57 | — | 0.5 | ELITE2500-A-14 | — | — | — |
| 25 | Intake air temp sensor | — | W54 | — | 0.5 | ELITE2500-B-3 | — | — | — |
| 26 | Coolant temp sensor | — | W53 | — | 0.5 | ELITE2500-B-4 | — | — | — |
| 27 | Throttle position sensor | — | W49 | — | 0.5 | ELITE2500-A-16 | — | — | — |
| 28 | Sensor 5V supply 2 | — | — | — | — | — | — | — | — |
| 29 | Cam (TDC2) sensor + | — | W23 | — | 0.5 | ELITE2500-B-8 | — | — | — |
| 30 | Cam (TDC2) sensor − | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 31 | Timing ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | NC | — | — | — | — | — | — | — | — |
| 2 | NC | — | — | — | — | — | — | — | — |
| 3 | NC | — | — | — | — | — | — | — | — |
| 4 | NC | — | — | — | — | — | — | — | — |
| 5 | NC | — | — | — | — | — | — | — | — |
| 6 | NC | — | — | — | — | — | — | — | — |
| 7 | NC | — | — | — | — | — | — | — | — |
| 8 | NC | — | — | — | — | — | — | — | — |
| 9 | NC | — | — | — | — | — | — | — | — |
| 10 | NC | — | — | — | — | — | — | — | — |
| 11 | NC | — | — | — | — | — | — | — | — |
| 12 | NC | — | — | — | — | — | — | — | — |
| 13 | NC | — | — | — | — | — | — | — | — |
| 14 | NC | — | — | — | — | — | — | — | — |
| 15 | NC | — | — | — | — | — | — | — | — |
| 16 | NC | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-C-31 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-C-18 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-C-30 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-C-7 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | ELITE2500-B-14 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | ELITE2500-B-15 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | ELITE2500-B-16 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-B-1 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-B-9 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | ELITE2500-A-26 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | ELITE2500-B-11 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-B-10 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-B-2 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-B-20 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-B-22 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | ELITE2500-A-10 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | ELITE2500-A-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Coolant temp gauge drive | low_side_out | ELITE2500-A-34 | Stepper 1 P4 / DPO | switch_out | corroborated | |
| OEM-A-10 | Service check signal | — | — | — | — | single_source | |
| OEM-A-11 | NC | — | — | — | — | unverified | |
| OEM-A-12 | Immobilizer indicator light | low_side_out | ELITE2500-A-27 | INJ 5 | injector_out | single_source | |
| OEM-A-13 | Immobilizer enable signal | — | — | — | — | single_source | |
| OEM-A-14 | NC | — | — | — | — | unverified | |
| OEM-A-15 | Fuel pump relay (USDM) | low_side_out | ELITE2500-A-25 | DPO 6 (ECR OUT) | low_side_out | corroborated | |
| OEM-A-16 | Fuel pump relay (JDM) | low_side_out | ELITE2500-A-24 | DPO 5 (fuel pump trigger) | low_side_out | single_source | |
| OEM-A-17 | A/C clutch relay | low_side_out | ELITE2500-A-18 | DPO 1 | low_side_out | corroborated | |
| OEM-A-18 | Check engine light (MIL) | low_side_out | ELITE2500-A-28 | INJ 6 | injector_out | corroborated | |
| OEM-A-19 | Tacho output | tacho_out | — | — | — | corroborated | |
| OEM-A-2 | Air control valve solenoid | low_side_out | ELITE2500-A-29 | INJ 7 | injector_out | single_source | |
| OEM-A-20 | Radiator fan relay | low_side_out | ELITE2500-A-1 | DPO 2 | low_side_out | corroborated | |
| OEM-A-21 | K-Line | serial | — | — | — | single_source | |
| OEM-A-22 | NC | — | — | — | — | unverified | |
| OEM-A-23 | Secondary O2 sensor | lambda_nb_in | ELITE2500-A-17 | AVI 3 | analog_in | single_source | |
| OEM-A-24 | Starter switch signal | digital_in | ELITE2500-B-7 | SPI 4 | digital_in | corroborated | |
| OEM-A-25 | Immobilizer code | — | — | — | — | single_source | |
| OEM-A-26 | Power steering load detect | digital_in | — | — | — | corroborated | |
| OEM-A-27 | A/C switch (request) | digital_in | — | — | — | corroborated | |
| OEM-A-28 | Air pump relay | low_side_out | ELITE2500-A-23 | DPO 3 | low_side_out | corroborated | |
| OEM-A-29 | Fuel tank pressure sensor | analog_in | ELITE2500-B-12 | AVI 6 (O2 Input 1) | analog_in | corroborated | |
| OEM-A-3 | Evap bypass solenoid | low_side_out | ELITE2500-A-30 | INJ 8 | injector_out | single_source | |
| OEM-A-30 | Electrical load detector | analog_in | ELITE2500-A-15 | AVI 9 (MAP) | analog_in | corroborated | |
| OEM-A-31 | NC | — | — | — | — | unverified | |
| OEM-A-32 | Brake switch | digital_in | — | — | — | corroborated | |
| OEM-A-4 | Evap canister vent shut valve | low_side_out | ELITE2500-B-25 | DBW 1 / DPO | hbridge_out | single_source | |
| OEM-A-5 | NC | — | — | — | — | unverified | |
| OEM-A-6 | Evap canister purge valve | low_side_out | ELITE2500-B-26 | DBW 2 / DPO | hbridge_out | single_source | |
| OEM-A-7 | NC | — | — | — | — | unverified | |
| OEM-A-8 | NC | — | — | — | — | unverified | |
| OEM-A-9 | Vehicle speed sensor | digital_in | ELITE2500-B-9 | SPI 2 | digital_in | corroborated | |
| OEM-B-1 | Power source 1 (main relay) | power_in | ELITE2500-A-26 + ELITE2500-B-11 | ECU injector power input + +13.8V ECU supply | power_in | corroborated | |
| OEM-B-10 | Power ground 2 | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-B-11 | Injector 1 | injector_out | ELITE2500-A-19 | INJ 1 | injector_out | corroborated | |
| OEM-B-12 | VTEC solenoid | high_side_out | ELITE2500-A-31 | Stepper 1 P1 / DPO | switch_out | corroborated | |
| OEM-B-13 | NC | — | — | — | — | unverified | |
| OEM-B-14 | NC | — | — | — | — | unverified | |
| OEM-B-15 | NC | — | — | — | — | unverified | |
| OEM-B-16 | NC | — | — | — | — | unverified | |
| OEM-B-17 | NC | — | — | — | — | unverified | |
| OEM-B-18 | NC | — | — | — | — | unverified | |
| OEM-B-19 | NC | — | — | — | — | unverified | |
| OEM-B-2 | Power ground 1 | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | corroborated | |
| OEM-B-20 | Ground | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-B-21 | Backup power (battery constant) | power_in | — | — | — | single_source | |
| OEM-B-22 | Ground | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-B-23 | Idle air control valve | low_side_out | ELITE2500-A-33 | Stepper 1 P3 / DPO | switch_out | corroborated | |
| OEM-B-24 | NC | — | — | — | — | unverified | |
| OEM-B-25 | NC | — | — | — | — | unverified | |
| OEM-B-3 | Injector 2 | injector_out | ELITE2500-A-20 | INJ 2 | injector_out | corroborated | |
| OEM-B-4 | Injector 3 | injector_out | ELITE2500-A-21 | INJ 3 | injector_out | corroborated | |
| OEM-B-5 | Injector 4 | injector_out | ELITE2500-A-22 | INJ 4 | injector_out | corroborated | |
| OEM-B-6 | NC | — | — | — | — | unverified | |
| OEM-B-7 | NC | — | — | — | — | unverified | |
| OEM-B-8 | NC | — | — | — | — | unverified | |
| OEM-B-9 | Power source 2 (main relay) | power_in | ELITE2500-A-26 + ELITE2500-B-11 | ECU injector power input + +13.8V ECU supply | power_in | corroborated | |
| OEM-C-1 | Primary O2 heater | low_side_out | ELITE2500-B-19 | DPO 4 | low_side_out | corroborated | |
| OEM-C-10 | VTEC pressure switch | digital_in | — | — | — | corroborated | |
| OEM-C-11 | Secondary O2 heater control | low_side_out | ELITE2500-A-32 | Stepper 1 P2 / DPO | switch_out | single_source | |
| OEM-C-12 | Ignition coil 2 | ignition_out | ELITE2500-A-4 | IGN 2 | ignition_out | corroborated | |
| OEM-C-13 | Ignition coil 3 | ignition_out | ELITE2500-A-5 | IGN 3 | ignition_out | corroborated | |
| OEM-C-14 | Ignition coil 4 | ignition_out | ELITE2500-A-6 | IGN 4 | ignition_out | corroborated | |
| OEM-C-15 | Secondary O2 sensor | lambda_nb_in | ELITE2500-A-2 | AVI 4 | analog_in | corroborated | |
| OEM-C-16 | Primary O2 sensor | lambda_nb_in | ELITE2500-B-20 | AVI 5 | analog_in | corroborated | |
| OEM-C-17 | MAP sensor | analog_in | ELITE2500-B-13 | AVI 1 (O2 Input 2) | analog_in | corroborated | |
| OEM-C-18 | Sensor ground 2 | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 | Signal ground + Signal ground + Signal ground | sensor_ground | corroborated | |
| OEM-C-19 | Sensor 5V supply 1 (MAP) | vref | ELITE2500-A-9 | +5V DC | vref | corroborated | |
| OEM-C-2 | Alternator control | low_side_out | — | — | — | single_source | |
| OEM-C-20 | Cam (TDC1) sensor + | trigger_in | ELITE2500-B-2 | Cam (Home) (+) | trigger_in | corroborated | |
| OEM-C-21 | Cam (TDC1) sensor − | trigger_in | ELITE2500-B-6 | Cam (Home) (−) | trigger_in | corroborated | |
| OEM-C-22 | Knock sensor | knock_in | — | — | — | conflict | |
| OEM-C-23 | NC | — | — | — | — | unverified | |
| OEM-C-24 | Air pump electric current sensor | analog_in | ELITE2500-A-14 | AVI 10 (TPS) | analog_in | single_source | |
| OEM-C-25 | Intake air temp sensor | temp_in | ELITE2500-B-3 | AVI 7 (Air Temp) | analog_in | corroborated | |
| OEM-C-26 | Coolant temp sensor | temp_in | ELITE2500-B-4 | AVI 8 (Coolant Temp) | analog_in | corroborated | |
| OEM-C-27 | Throttle position sensor | analog_in | ELITE2500-A-16 | AVI 2 | analog_in | corroborated | |
| OEM-C-28 | Sensor 5V supply 2 | vref | — | — | — | corroborated | |
| OEM-C-29 | Cam (TDC2) sensor + | trigger_in | ELITE2500-B-8 | SPI 1 | digital_in | corroborated | |
| OEM-C-3 | Knock sensor | knock_in | — | — | — | conflict | |
| OEM-C-30 | Cam (TDC2) sensor − | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 | Signal ground + Signal ground + Signal ground | sensor_ground | corroborated | |
| OEM-C-31 | Timing ground | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 | Signal ground + Signal ground + Signal ground | sensor_ground | single_source | |
| OEM-C-4 | Ignition coil 1 | ignition_out | ELITE2500-A-3 | IGN 1 | ignition_out | corroborated | |
| OEM-C-5 | Alternator FR signal | digital_in | ELITE2500-B-10 | SPI 3 | digital_in | single_source | |
| OEM-C-6 | NC | — | — | — | — | unverified | |
| OEM-C-7 | Sensor ground 1 | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 | Signal ground + Signal ground + Signal ground | sensor_ground | corroborated | |
| OEM-C-8 | Crank sensor + (CKP+) | trigger_in | ELITE2500-B-1 | Crank (Trigger) (+) | trigger_in | corroborated | |
| OEM-C-9 | Crank sensor − (CKP−) | trigger_in | ELITE2500-B-5 | Crank (Trigger) (−) | trigger_in | corroborated | |
| OEM-D-1 | NC | — | — | — | — | unverified | |
| OEM-D-10 | NC | — | — | — | — | unverified | |
| OEM-D-11 | NC | — | — | — | — | unverified | |
| OEM-D-12 | NC | — | — | — | — | unverified | |
| OEM-D-13 | NC | — | — | — | — | unverified | |
| OEM-D-14 | NC | — | — | — | — | unverified | |
| OEM-D-15 | NC | — | — | — | — | unverified | |
| OEM-D-16 | NC | — | — | — | — | unverified | |
| OEM-D-2 | NC | — | — | — | — | unverified | |
| OEM-D-3 | NC | — | — | — | — | unverified | |
| OEM-D-4 | NC | — | — | — | — | unverified | |
| OEM-D-5 | NC | — | — | — | — | unverified | |
| OEM-D-6 | NC | — | — | — | — | unverified | |
| OEM-D-7 | NC | — | — | — | — | unverified | |
| OEM-D-8 | NC | — | — | — | — | unverified | |
| OEM-D-9 | NC | — | — | — | — | unverified |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-B-1 | SP-14V-1 | 0.85 | no route | Power source 1 (main relay) | — | |
| W2 | OEM-B-9 | SP-14V-1 | 0.85 | no route | Power source 2 (main relay) | — | |
| W3 | SP-14V-1 | ELITE2500-A-26 | 0.85 | no route | ECU injector power input | — | |
| W4 | SP-14V-1 | ELITE2500-B-11 | 0.85 | no route | +13.8V ECU supply | — | |
| W5 | OEM-B-10 | SP-GND-1 | 0.85 | no route | Power ground 2 | — | |
| W6 | OEM-B-2 | SP-GND-1 | 0.85 | no route | Power ground 1 | — | |
| W7 | OEM-B-20 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W8 | OEM-B-22 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W9 | SP-GND-1 | ELITE2500-A-10 | 0.85 | no route | Battery ground | — | |
| W10 | SP-GND-1 | ELITE2500-A-11 | 0.85 | no route | Battery ground | — | |
| W11 | OEM-C-18 | SP-0V-1 | 0.5 | no route | Sensor ground 2 | — | |
| W12 | OEM-C-30 | SP-0V-1 | 0.5 | no route | Cam (TDC2) sensor − | — | |
| W13 | OEM-C-31 | SP-0V-1 | 0.5 | no route | Timing ground | — | |
| W14 | OEM-C-7 | SP-0V-1 | 0.5 | no route | Sensor ground 1 | — | |
| W15 | SP-0V-1 | ELITE2500-B-14 | 0.5 | no route | Signal ground | — | |
| W16 | SP-0V-1 | ELITE2500-B-15 | 0.5 | no route | Signal ground | — | |
| W17 | SP-0V-1 | ELITE2500-B-16 | 0.5 | no route | Signal ground | — | |
| W18 | OEM-C-19 | ELITE2500-A-9 | 0.5 | no route | Sensor 5V supply 1 (MAP) | — | |
| W19 | OEM-C-9 | ELITE2500-B-5 | 0.5 | no route | Crank sensor − (CKP−) | — | |
| W20 | OEM-C-8 | ELITE2500-B-1 | 0.5 | no route | Crank sensor + (CKP+) | — | |
| W21 | OEM-C-21 | ELITE2500-B-6 | 0.5 | no route | Cam (TDC1) sensor − | — | |
| W22 | OEM-C-20 | ELITE2500-B-2 | 0.5 | no route | Cam (TDC1) sensor + | — | |
| W23 | OEM-C-29 | ELITE2500-B-8 | 0.5 | no route | Cam (TDC2) sensor + | — | |
| W24 | OEM-C-4 | ELITE2500-A-3 | 0.5 | no route | Ignition coil 1 | — | |
| W25 | OEM-C-12 | ELITE2500-A-4 | 0.5 | no route | Ignition coil 2 | — | |
| W26 | OEM-C-13 | ELITE2500-A-5 | 0.5 | no route | Ignition coil 3 | — | |
| W27 | OEM-C-14 | ELITE2500-A-6 | 0.5 | no route | Ignition coil 4 | — | |
| W28 | OEM-B-11 | ELITE2500-A-19 | 0.5 | no route | Injector 1 | — | |
| W29 | OEM-B-3 | ELITE2500-A-20 | 0.5 | no route | Injector 2 | — | |
| W30 | OEM-B-4 | ELITE2500-A-21 | 0.5 | no route | Injector 3 | — | |
| W31 | OEM-B-5 | ELITE2500-A-22 | 0.5 | no route | Injector 4 | — | |
| W32 | OEM-A-15 | ELITE2500-A-25 | 0.5 | no route | Fuel pump relay (USDM) | — | |
| W33 | OEM-A-16 | ELITE2500-A-24 | 0.5 | no route | Fuel pump relay (JDM) | — | |
| W34 | OEM-A-17 | ELITE2500-A-18 | 0.5 | no route | A/C clutch relay | — | |
| W35 | OEM-A-20 | ELITE2500-A-1 | 0.5 | no route | Radiator fan relay | — | |
| W36 | OEM-A-28 | ELITE2500-A-23 | 0.5 | no route | Air pump relay | — | |
| W37 | OEM-B-12 | ELITE2500-A-31 | 0.5 | no route | VTEC solenoid | — | |
| W38 | OEM-C-1 | ELITE2500-B-19 | 0.5 | no route | Primary O2 heater | — | |
| W39 | OEM-C-11 | ELITE2500-A-32 | 0.5 | no route | Secondary O2 heater control | — | |
| W40 | OEM-B-23 | ELITE2500-A-33 | 0.5 | no route | Idle air control valve | — | |
| W41 | OEM-A-1 | ELITE2500-A-34 | 0.5 | no route | Coolant temp gauge drive | — | |
| W42 | OEM-A-12 | ELITE2500-A-27 | 0.5 | no route | Immobilizer indicator light | — | |
| W43 | OEM-A-18 | ELITE2500-A-28 | 0.5 | no route | Check engine light (MIL) | — | |
| W44 | OEM-A-2 | ELITE2500-A-29 | 0.5 | no route | Air control valve solenoid | — | |
| W45 | OEM-A-3 | ELITE2500-A-30 | 0.5 | no route | Evap bypass solenoid | — | |
| W46 | OEM-A-4 | ELITE2500-B-25 | 0.5 | no route | Evap canister vent shut valve | — | |
| W47 | OEM-A-6 | ELITE2500-B-26 | 0.5 | no route | Evap canister purge valve | — | |
| W48 | OEM-C-17 | ELITE2500-B-13 | 0.5 | no route | MAP sensor | — | |
| W49 | OEM-C-27 | ELITE2500-A-16 | 0.5 | no route | Throttle position sensor | — | |
| W50 | OEM-A-23 | ELITE2500-A-17 | 0.5 | no route | Secondary O2 sensor | — | |
| W51 | OEM-C-15 | ELITE2500-A-2 | 0.5 | no route | Secondary O2 sensor | — | |
| W52 | OEM-C-16 | ELITE2500-B-20 | 0.5 | no route | Primary O2 sensor | — | |
| W53 | OEM-C-26 | ELITE2500-B-4 | 0.5 | no route | Coolant temp sensor | — | |
| W54 | OEM-C-25 | ELITE2500-B-3 | 0.5 | no route | Intake air temp sensor | — | |
| W55 | OEM-A-29 | ELITE2500-B-12 | 0.5 | no route | Fuel tank pressure sensor | — | |
| W56 | OEM-A-30 | ELITE2500-A-15 | 0.5 | no route | Electrical load detector | — | |
| W57 | OEM-C-24 | ELITE2500-A-14 | 0.5 | no route | Air pump electric current sensor | — | |
| W58 | OEM-A-9 | ELITE2500-B-9 | 0.5 | no route | Vehicle speed sensor | — | |
| W59 | OEM-C-5 | ELITE2500-B-10 | 0.5 | no route | Alternator FR signal | — | |
| W60 | OEM-A-24 | ELITE2500-B-7 | 0.5 | no route | Starter switch signal | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 179679-6 | TE | S2000 2000–05 ECU harness plug B (25P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | 179680-5 | TE | S2000 2000–05 ECU harness plug C (31P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | 179681-6 | TE | S2000 2000–05 ECU harness plug A (32P, TE 040 Multi-Lock) | 1.000 | ea |
| connector | S2K-0005-ECU-D | Honda | S2000 2000–05 ECU plug D (P/N unknown) | 1.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-C-28 | Required OEM function "Sensor 5V supply 2" (vref) is not connected to the new ECU. |
| warn | NET_FAMILY | OEM-A-4 ↔ ELITE2500-B-25 | OEM-A-4 "Evap canister vent shut valve" [low_side_out] is wired to ELITE2500-B-25 "DBW 1 / DPO" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-A-6 ↔ ELITE2500-B-26 | OEM-A-6 "Evap canister purge valve" [low_side_out] is wired to ELITE2500-B-26 "DBW 2 / DPO" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-C-29 ↔ ELITE2500-B-8 | OEM-C-29 "Cam (TDC2) sensor +" [trigger_in] is wired to ELITE2500-B-8 "SPI 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| info | NET_FAMILY | OEM-A-12 ↔ ELITE2500-A-27 | OEM-A-12 "Immobilizer indicator light" [low_side_out] is wired to ELITE2500-A-27 "INJ 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-18 ↔ ELITE2500-A-28 | OEM-A-18 "Check engine light (MIL)" [low_side_out] is wired to ELITE2500-A-28 "INJ 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1 ↔ ELITE2500-A-34 | OEM-A-1 "Coolant temp gauge drive" [low_side_out] is wired to ELITE2500-A-34 "Stepper 1 P4 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-2 ↔ ELITE2500-A-29 | OEM-A-2 "Air control valve solenoid" [low_side_out] is wired to ELITE2500-A-29 "INJ 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-3 ↔ ELITE2500-A-30 | OEM-A-3 "Evap bypass solenoid" [low_side_out] is wired to ELITE2500-A-30 "INJ 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-12 ↔ ELITE2500-A-31 | OEM-B-12 "VTEC solenoid" [high_side_out] is wired to ELITE2500-A-31 "Stepper 1 P1 / DPO" [switch_out]. Configure this output as high side. |
| info | NET_FAMILY | OEM-B-23 ↔ ELITE2500-A-33 | OEM-B-23 "Idle air control valve" [low_side_out] is wired to ELITE2500-A-33 "Stepper 1 P3 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-C-11 ↔ ELITE2500-A-32 | OEM-C-11 "Secondary O2 heater control" [low_side_out] is wired to ELITE2500-A-32 "Stepper 1 P2 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-C-25 ↔ ELITE2500-B-3 | OEM-C-25 "Intake air temp sensor" [temp_in] is wired to ELITE2500-B-3 "AVI 7 (Air Temp)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C-26 ↔ ELITE2500-B-4 | OEM-C-26 "Coolant temp sensor" [temp_in] is wired to ELITE2500-B-4 "AVI 8 (Coolant Temp)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 13 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-A-26 Power steering load detect; OEM-A-27 A/C switch (request); OEM-A-32 Brake switch; OEM-B-21 Backup power (battery constant); OEM-C-10 VTEC pressure switch; OEM-C-2 Alternator control; OEM-C-22 Knock sensor; OEM-C-3 Knock sensor |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-04. Review every wire against both manuals before building. Open items: - OEM-C 28: Sensor 5V supply 2: no free 5 V reference left on Haltech Elite 2500 for supply group "s2k_vcc2" (groups must stay separate) Not wired: - OEM-B 21: Backup power (battery constant): Haltech Elite 2500 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-C 2: Alternator control: no free low_side/ls_hs/injector/hbridge on Haltech Elite 2500 - OEM-A 19: Tacho output: no free tacho/frequency_out/low_side/ls_hs on Haltech Elite 2500 - OEM-A 26: Power steering load detect: no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-A 27: A/C switch (request): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-A 32: Brake switch: no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 10: VTEC pressure switch: no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-A 21: K-Line: no free k_line on Haltech Elite 2500 - 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 - ELITE2500-A 13: 12V ignition input: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
Sources
| Reliability | Kind | Title | URL |
|---|---|---|---|
| 4 | vendor_doc | AEM 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 |
| 4 | vendor_doc | Haltech Elite 2500 — 26-pin connector pinout | https://support.haltech.com/portal/en/kb/articles/main-connector-26-pin-elite2500 |
| 4 | vendor_doc | Haltech Elite 2500 — 34-pin main connector pinout | https://support.haltech.com/portal/en/kb/articles/main-connector-34-pin-elite2500 |
| 4 | datasheet | Haltech Elite 2500 (HT-151300) spec sheet | https://joeblospeedshop.com/wp-content/uploads/2023/11/HT-151300_SPEC-SHEET-2500-ELITE.pdf |
| 4 | vendor_doc | Haltech KB: F20C (AP1) engine | https://support.haltech.com/portal/en/kb/articles/f20c-ap1-engine |
| 4 | vendor_doc | Link S2000 AP1 PlugIn installation manual | https://linkecu.com/documentation/S2000X.pdf |
| 2 | forum | AllPinouts: 2000–2005 Honda S2000 ECU | https://allpinouts.org/pinouts/connectors/car/2000-2005-honda-s2000-ecu/ |
| 2 | forum | Autodata blog: ECU Pinout Honda S2000 2000-2004 | http://autodatas.blogspot.com/2012/11/ecu-pinout-honda-s2000-2000-2004.html |
| 2 | derived | Typical load estimates (relay coil ~0.2 A, high-Z injector ~1.2 A, VVT solenoid ~1 A) | — |