W1 OEM-4-B · ECU power +12V (main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 SP-14V-1 G4XATOMX-A-A5 · +14V ECU Power — 0.85 mm² (≈18 AWG) — — — × W3 OEM-4-A · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W4 OEM-4-C · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-4-D · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 OEM-4-K · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 SP-GND-1 G4XATOMX-A-A25 · System Ground — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 G4XATOMX-A-A34 · System Ground — 0.85 mm² (≈18 AWG) — — — × W9 OEM-3-O · Sensor ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 OEM-4-H · Crank pickup timing ground (CKP gnd) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 SP-0V-1 G4XATOMX-A-A24 · Sensor Ground — 0.5 mm² (≈20 AWG) — — — × W12 OEM-3-I · +5V sensor reference G4XATOMX-A-A32 · +5V Out — 0.5 mm² (≈20 AWG) — — — × W13 OEM-4-E · Crank position (CKP) sensor G4XATOMX-A-A8 · Trigger 1 — 0.5 mm² (≈20 AWG) — — — × W14 OEM-4-G · CAS SGC (cam sync) G4XATOMX-A-A9 · Trigger 2 — 0.5 mm² (≈20 AWG) — — — × W15 OEM-4-F · CAS SGT (cam trigger) G4XATOMX-A-A30 · Digital Input 1 — 0.5 mm² (≈20 AWG) — — — × W16 OEM-4-N · Ignition coil trigger (cyl 1&4) G4XATOMX-A-A13 · Ignition 1 — 0.5 mm² (≈20 AWG) — — — × W17 OEM-4-R · Ignition coil trigger (cyl 2&3) G4XATOMX-A-A12 · Ignition 2 — 0.5 mm² (≈20 AWG) — — — × W18 OEM-4-U · Injector 1 (cyl 1) G4XATOMX-A-A4 · Injector 1 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-4-V · Injector 2 (cyl 2) G4XATOMX-A-A3 · Injector 2 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-4-W · Injector 3 (cyl 3) G4XATOMX-A-A2 · Injector 3 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-4-X · Injector 4 (cyl 4) G4XATOMX-A-A1 · Injector 4 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-3-B · MAF sensor input G4XATOMX-A-A17 · Analog Volt 1 — 0.5 mm² (≈20 AWG) — — — × W23 OEM-3-F · Throttle position (TPS) G4XATOMX-A-A22 · Analog Volt 2 — 0.5 mm² (≈20 AWG) — — — × W24 OEM-3-G · Engine coolant temp (CLT) G4XATOMX-A-A15 · Analog Temp 1 — 0.5 mm² (≈20 AWG) — — — × W25 OEM-1-A · Cooling fan relay (low-side) G4XATOMX-A-A21 · Aux 1 — 0.5 mm² (≈20 AWG) — — — × W26 OEM-1-B · A/C condenser fan relay G4XATOMX-A-A20 · Aux 2 — 0.5 mm² (≈20 AWG) — — — × W27 OEM-1-G · A/C clutch relay G4XATOMX-A-A19 · Aux 3 — 0.5 mm² (≈20 AWG) — — — × W28 OEM-1-U · Fuel pump relay (low-side) G4XATOMX-A-A18 · Aux 4 — 0.5 mm² (≈20 AWG) — — — × W29 OEM-3-H · EGR boost sensor G4XATOMX-A-A33 · Analog Volt 3 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-3-K · Intake air temp (IAT) G4XATOMX-A-A16 · Analog Temp 2 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-1-M · Vehicle speed sensor (VSS) G4XATOMX-A-A31 · Digital Input 2 — 0.5 mm² (≈20 AWG) — — — ×