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 MAXXECUSTREE-C1-M4 · +12V ECU power supply — 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 MAXXECUSTREE-C1-L4 · Engine GND — 0.85 mm² (≈18 AWG) — — — × W8 OEM-3-F · Signal ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W9 SP-0V-1 MAXXECUSTREE-C1-H1 · Sensor GND — 0.5 mm² (≈20 AWG) — — — × W10 SP-0V-1 MAXXECUSTREE-C1-H2 · Trigger GND — 0.5 mm² (≈20 AWG) — — — × W11 OEM-2-I · +5V sensor supply MAXXECUSTREE-C1-G1 · +5V sensor supply — 0.5 mm² (≈20 AWG) — — — × W12 OEM-2-J · Crank position (CKP) MAXXECUSTREE-C1-H3 · TRIGGER — 0.5 mm² (≈20 AWG) — — — × W13 OEM-2-H · Cam position (CMP) MAXXECUSTREE-C1-H4 · HOME — 0.5 mm² (≈20 AWG) — — — × W14 OEM-3-G · Ignition 1 (coils 1+4, wasted spark) MAXXECUSTREE-C1-A2 · IGN 1 — 0.5 mm² (≈20 AWG) — — — × W15 OEM-3-H · Ignition 2 (coils 2+3, wasted spark) MAXXECUSTREE-C1-A3 · IGN 2 — 0.5 mm² (≈20 AWG) — — — × W16 OEM-3-W · Injector 1 MAXXECUSTREE-C1-K1 · INJ 1 — 0.5 mm² (≈20 AWG) — — — × W17 OEM-3-X · Injector 2 MAXXECUSTREE-C1-K2 · INJ 2 — 0.5 mm² (≈20 AWG) — — — × W18 OEM-3-Y · Injector 3 MAXXECUSTREE-C1-M1 · INJ 3 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-3-Z · Injector 4 MAXXECUSTREE-C1-M2 · INJ 4 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-1-I · Condenser fan relay MAXXECUSTREE-C1-B4 · GPO 1 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-1-R · Cooling fan relay MAXXECUSTREE-C1-C4 · GPO 2 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-1-S · A/C clutch relay MAXXECUSTREE-C1-D4 · GPO 3 — 0.5 mm² (≈20 AWG) — — — × W23 OEM-3-N · Fuel pump relay MAXXECUSTREE-C1-A4 · GPO 8/TACHO — 0.5 mm² (≈20 AWG) — — — × W24 OEM-1-U · Front O2 heater MAXXECUSTREE-C1-D1 · WBO2 Heater- — 0.5 mm² (≈20 AWG) — — — × W25 OEM-3-O · ISC valve low side MAXXECUSTREE-C1-M3 · INJ 5 — 0.5 mm² (≈20 AWG) — — — × W26 OEM-1-E · Malfunction indicator lamp (MIL) MAXXECUSTREE-C1-L3 · INJ 6 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-2-L · Mass air flow (MAF) MAXXECUSTREE-C1-J3 · AIN 3 (0-5V) — 0.5 mm² (≈20 AWG) — — — × W28 OEM-3-S · Pressure sensor (Mazda: EGR boost sensor) MAXXECUSTREE-C1-J4 · AIN 4 (0-5V) — 0.5 mm² (≈20 AWG) — — — × W29 OEM-3-E · Throttle position (TPS) MAXXECUSTREE-C1-G2 · TPS/AIN — 0.5 mm² (≈20 AWG) — — — × W30 OEM-2-E · Coolant temperature (ECT) MAXXECUSTREE-C1-J1 · AIN 1 (temperature) — 0.5 mm² (≈20 AWG) — — — × W31 OEM-2-B · Intake air temperature (IAT) MAXXECUSTREE-C1-J2 · AIN 2 (Temperature) — 0.5 mm² (≈20 AWG) — — — × W32 OEM-2-D · Vehicle speed MAXXECUSTREE-C1-K3 · DIN 1 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-1-F · Brake switch MAXXECUSTREE-C1-K4 · DIN 2 — 0.5 mm² (≈20 AWG) — — — ×