W1 OEM-B-1 · Power source 1 (main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 OEM-B-9 · Power source 2 (main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W3 SP-14V-1 MS3PROMINI-A-1 · 12V+ switched power in — 0.85 mm² (≈18 AWG) — — — × W4 OEM-B-10 · Power ground 2 SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-B-2 · Power ground 1 SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 OEM-B-20 · Ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 OEM-B-22 · Ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 MS3PROMINI-A-22 · Power ground — 0.85 mm² (≈18 AWG) — — — × W9 SP-GND-1 MS3PROMINI-A-23 · Power ground — 0.85 mm² (≈18 AWG) — — — × W10 OEM-C-18 · Sensor ground 2 SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-C-30 · Cam (TDC2) sensor − SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-C-31 · Timing ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 OEM-C-7 · Sensor ground 1 SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W14 SP-0V-1 MS3PROMINI-A-21 · Sensor ground — 0.5 mm² (≈20 AWG) — — — × W15 OEM-C-19 · Sensor 5V supply 1 (MAP) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W16 OEM-C-28 · Sensor 5V supply 2 SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W17 SP-5V1-1 MS3PROMINI-A-2 · +5V VREF out — 0.5 mm² (≈20 AWG) — — — × W18 OEM-C-8 · Crank sensor + (CKP+) MS3PROMINI-A-30 · CKP+ — 0.5 mm² (≈20 AWG) — — — × W19 OEM-C-9 · Crank sensor − (CKP−) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-C-20 · Cam (TDC1) sensor + MS3PROMINI-A-32 · CMP+ — 0.5 mm² (≈20 AWG) — — — × W21 OEM-C-21 · Cam (TDC1) sensor − SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-C-29 · Cam (TDC2) sensor + MS3PROMINI-A-33 · CMP- — 0.5 mm² (≈20 AWG) — — — × W23 OEM-C-4 · Ignition coil 1 MS3PROMINI-A-17 · Spark out A — 0.5 mm² (≈20 AWG) — — — × W24 OEM-C-12 · Ignition coil 2 MS3PROMINI-A-18 · Spark out B — 0.5 mm² (≈20 AWG) — — — × W25 OEM-C-13 · Ignition coil 3 MS3PROMINI-A-19 · Spark out C — 0.5 mm² (≈20 AWG) — — — × W26 OEM-C-14 · Ignition coil 4 MS3PROMINI-A-20 · Spark out D — 0.5 mm² (≈20 AWG) — — — × W27 OEM-B-11 · Injector 1 MS3PROMINI-A-10 · Injector out F — 0.5 mm² (≈20 AWG) — — — × W28 OEM-B-3 · Injector 2 MS3PROMINI-A-11 · Injector out G — 0.5 mm² (≈20 AWG) — — — × W29 OEM-B-4 · Injector 3 MS3PROMINI-A-12 · Injector out H — 0.5 mm² (≈20 AWG) — — — × W30 OEM-B-5 · Injector 4 MS3PROMINI-A-5 · Injector out A — 0.5 mm² (≈20 AWG) — — — × W31 OEM-A-15 · Fuel pump relay (USDM) MS3PROMINI-A-4 · Fuel pump out — 0.5 mm² (≈20 AWG) — — — × W32 OEM-A-16 · Fuel pump relay (JDM) MS3PROMINI-A-3 · PWM out 1 / Idle — 0.5 mm² (≈20 AWG) — — — × W33 OEM-A-17 · A/C clutch relay MS3PROMINI-A-6 · Injector out B — 0.5 mm² (≈20 AWG) — — — × W34 OEM-A-20 · Radiator fan relay MS3PROMINI-A-7 · Injector out C — 0.5 mm² (≈20 AWG) — — — × W35 OEM-A-28 · Air pump relay MS3PROMINI-A-8 · Injector out D — 0.5 mm² (≈20 AWG) — — — × W36 OEM-B-12 · VTEC solenoid RLY1-R-OUT · Relay contact output (switched +12 V to load) — 0.5 mm² (≈20 AWG) — — — × W37 SP-14V-1 RLY1-R-IN · Relay contact input (switched +12 V) — 0.5 mm² (≈20 AWG) — — — × W38 SP-14V-1 RLY1-R-COIL+ · Relay coil positive (switched +12 V) — 0.5 mm² (≈20 AWG) — — — × W39 RLY1-R-COIL- · Relay coil negative (ECU low-side driver) MS3PROMINI-A-9 · Injector out E — 0.5 mm² (≈20 AWG) — — — × W40 OEM-C-17 · MAP sensor MS3PROMINI-A-13 · Analog in 1 — 0.5 mm² (≈20 AWG) — — — × W41 OEM-C-27 · Throttle position sensor MS3PROMINI-A-28 · TPS in — 0.5 mm² (≈20 AWG) — — — × W42 OEM-A-23 · Secondary O2 sensor MS3PROMINI-A-14 · Analog in 2 — 0.5 mm² (≈20 AWG) — — — × W43 OEM-C-15 · Secondary O2 sensor MS3PROMINI-A-15 · Analog in 3 — 0.5 mm² (≈20 AWG) — — — × W44 OEM-C-16 · Primary O2 sensor MS3PROMINI-A-16 · Analog in 4 — 0.5 mm² (≈20 AWG) — — — × W45 OEM-C-26 · Coolant temp sensor MS3PROMINI-A-26 · CLT in — 0.5 mm² (≈20 AWG) — — — × W46 OEM-C-25 · Intake air temp sensor MS3PROMINI-A-27 · IAT in — 0.5 mm² (≈20 AWG) — — — × W47 OEM-A-9 · Vehicle speed sensor MS3PROMINI-A-34 · Digital frequency in 1 (Hall) — 0.5 mm² (≈20 AWG) — — — × W48 OEM-C-5 · Alternator FR signal MS3PROMINI-A-35 · Digital frequency in 2 (Hall) — 0.5 mm² (≈20 AWG) — — — × W49 OEM-A-24 · Starter switch signal MS3PROMINI-A-29 · Digital switched in 1 / Flex fuel — 0.5 mm² (≈20 AWG) — — — ×