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 G4XMONSOONX-A-A5 · +14V ECU Power — 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 G4XMONSOONX-A-A25 · System Ground — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 G4XMONSOONX-A-A34 · System Ground — 0.85 mm² (≈18 AWG) — — — × W9 OEM-3-F · Signal ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 SP-0V-1 G4XMONSOONX-A-A24 · Sensor Ground — 0.5 mm² (≈20 AWG) — — — × W11 OEM-2-I · +5V sensor supply G4XMONSOONX-A-A32 · +5V Out — 0.5 mm² (≈20 AWG) — — — × W12 OEM-2-J · Crank position (CKP) G4XMONSOONX-A-A8 · Trigger 1 — 0.5 mm² (≈20 AWG) — — — × W13 OEM-2-H · Cam position (CMP) G4XMONSOONX-A-A9 · Trigger 2 — 0.5 mm² (≈20 AWG) — — — × W14 OEM-2-F · Knock sensor G4XMONSOONX-A-A6 · Knock 1 / Digital Input 4 — 0.5 mm² (≈20 AWG) — — — × W15 OEM-3-G · Ignition 1 (coils 1+4, wasted spark) G4XMONSOONX-A-A13 · Ignition 1 — 0.5 mm² (≈20 AWG) — — — × W16 OEM-3-H · Ignition 2 (coils 2+3, wasted spark) G4XMONSOONX-A-A12 · Ignition 2 — 0.5 mm² (≈20 AWG) — — — × W17 OEM-3-W · Injector 1 G4XMONSOONX-A-A4 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W18 OEM-3-X · Injector 2 G4XMONSOONX-A-A3 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-3-Y · Injector 3 G4XMONSOONX-A-A2 · Injector 3 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-3-Z · Injector 4 G4XMONSOONX-A-A1 · Injector 4 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-1-I · Condenser fan relay G4XMONSOONX-A-A21 · Aux 1 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-1-R · Cooling fan relay G4XMONSOONX-A-A20 · Aux 2 — 0.5 mm² (≈20 AWG) — — — × W23 OEM-1-S · A/C clutch relay G4XMONSOONX-A-A19 · Aux 3 — 0.5 mm² (≈20 AWG) — — — × W24 OEM-3-N · Fuel pump relay G4XMONSOONX-A-A18 · Aux 4 — 0.5 mm² (≈20 AWG) — — — × W25 OEM-1-U · Front O2 heater G4XMONSOONX-A-A27 · Aux 5 — 0.5 mm² (≈20 AWG) — — — × W26 OEM-3-V · Rear O2 heater G4XMONSOONX-A-A26 · Aux 6 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-2-L · Mass air flow (MAF) G4XMONSOONX-A-A17 · Analog Volt 1 — 0.5 mm² (≈20 AWG) — — — × W28 OEM-3-S · Pressure sensor (Mazda: EGR boost sensor) G4XMONSOONX-A-A22 · Analog Volt 2 — 0.5 mm² (≈20 AWG) — — — × W29 OEM-3-E · Throttle position (TPS) G4XMONSOONX-A-A33 · Analog Volt 3 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-2-C · Front O2 signal G4XMONSOONX-A-A14 · Analog Volt 4 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-2-E · Coolant temperature (ECT) G4XMONSOONX-A-A15 · Analog Temp 1 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-2-B · Intake air temperature (IAT) G4XMONSOONX-A-A16 · Analog Temp 2 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-2-D · Vehicle speed G4XMONSOONX-A-A30 · Digital Input 1 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-1-F · Brake switch G4XMONSOONX-A-A31 · Digital Input 2 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-1-G · Power steering pressure switch G4XMONSOONX-A-A23 · Digital Input 3 — 0.5 mm² (≈20 AWG) — — — ×