W1 OEM-1-B · ECU power +14V (main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 OEM-3-M · ISC valve +14V feed 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-3-A · Power ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-3-B · Power ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 OEM-3-C · Power ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 SP-GND-1 MS3PROMINI-A-22 · Power ground — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 MS3PROMINI-A-23 · Power ground — 0.85 mm² (≈18 AWG) — — — × W9 OEM-3-F · Signal ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 SP-0V-1 MS3PROMINI-A-21 · Sensor ground — 0.5 mm² (≈20 AWG) — — — × W11 OEM-2-I · +5V sensor supply MS3PROMINI-A-2 · +5V VREF out — 0.5 mm² (≈20 AWG) — — — × W12 OEM-2-J · Crank position (CKP) MS3PROMINI-A-30 · CKP+ — 0.5 mm² (≈20 AWG) — — — × W13 OEM-2-H · Cam position (CMP) MS3PROMINI-A-32 · CMP+ — 0.5 mm² (≈20 AWG) — — — × W14 OEM-3-G · Ignition 1 (coils 1+4, wasted spark) MS3PROMINI-A-17 · Spark out A — 0.5 mm² (≈20 AWG) — — — × W15 OEM-3-H · Ignition 2 (coils 2+3, wasted spark) MS3PROMINI-A-18 · Spark out B — 0.5 mm² (≈20 AWG) — — — × W16 OEM-3-W · Injector 1 MS3PROMINI-A-10 · Injector out F — 0.5 mm² (≈20 AWG) — — — × W17 OEM-3-X · Injector 2 MS3PROMINI-A-11 · Injector out G — 0.5 mm² (≈20 AWG) — — — × W18 OEM-3-Y · Injector 3 MS3PROMINI-A-12 · Injector out H — 0.5 mm² (≈20 AWG) — — — × W19 OEM-3-Z · Injector 4 MS3PROMINI-A-5 · Injector out A — 0.5 mm² (≈20 AWG) — — — × W20 OEM-1-I · Condenser fan relay MS3PROMINI-A-4 · Fuel pump out — 0.5 mm² (≈20 AWG) — — — × W21 OEM-1-R · Cooling fan relay MS3PROMINI-A-3 · PWM out 1 / Idle — 0.5 mm² (≈20 AWG) — — — × W22 OEM-1-S · A/C clutch relay MS3PROMINI-A-6 · Injector out B — 0.5 mm² (≈20 AWG) — — — × W23 OEM-3-N · Fuel pump relay MS3PROMINI-A-7 · Injector out C — 0.5 mm² (≈20 AWG) — — — × W24 OEM-3-O · ISC valve low side MS3PROMINI-A-8 · Injector out D — 0.5 mm² (≈20 AWG) — — — × W25 OEM-1-E · Malfunction indicator lamp (MIL) MS3PROMINI-A-9 · Injector out E — 0.5 mm² (≈20 AWG) — — — × W26 OEM-2-L · Mass air flow (MAF) MS3PROMINI-A-13 · Analog in 1 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-3-S · Pressure sensor (Mazda: EGR boost sensor) MS3PROMINI-A-14 · Analog in 2 — 0.5 mm² (≈20 AWG) — — — × W28 OEM-3-E · Throttle position (TPS) MS3PROMINI-A-28 · TPS in — 0.5 mm² (≈20 AWG) — — — × W29 OEM-2-C · Front O2 signal MS3PROMINI-A-15 · Analog in 3 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-3-J · Rear O2 signal MS3PROMINI-A-16 · Analog in 4 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-2-E · Coolant temperature (ECT) MS3PROMINI-A-26 · CLT in — 0.5 mm² (≈20 AWG) — — — × W32 OEM-2-B · Intake air temperature (IAT) MS3PROMINI-A-27 · IAT in — 0.5 mm² (≈20 AWG) — — — × W33 OEM-2-D · Vehicle speed MS3PROMINI-A-34 · Digital frequency in 1 (Hall) — 0.5 mm² (≈20 AWG) — — — × W34 OEM-1-F · Brake switch MS3PROMINI-A-29 · Digital switched in 1 / Flex fuel — 0.5 mm² (≈20 AWG) — — — × W35 OEM-1-G · Power steering pressure switch MS3PROMINI-A-35 · Digital frequency in 2 (Hall) — 0.5 mm² (≈20 AWG) — — — ×