W1 OEM-4-B · ECU power +12V (main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 SP-14V-1 MS3PROMINI-A-1 · 12V+ switched power in — 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 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-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 MS3PROMINI-A-21 · Sensor ground — 0.5 mm² (≈20 AWG) — — — × W12 OEM-3-I · +5V sensor reference MS3PROMINI-A-2 · +5V VREF out — 0.5 mm² (≈20 AWG) — — — × W13 OEM-4-E · Crank position (CKP) sensor MS3PROMINI-A-30 · CKP+ — 0.5 mm² (≈20 AWG) — — — × W14 OEM-4-G · CAS SGC (cam sync) MS3PROMINI-A-32 · CMP+ — 0.5 mm² (≈20 AWG) — — — × W15 OEM-4-F · CAS SGT (cam trigger) MS3PROMINI-A-33 · CMP- — 0.5 mm² (≈20 AWG) — — — × W16 OEM-4-N · Ignition coil trigger (cyl 1&4) MS3PROMINI-A-17 · Spark out A — 0.5 mm² (≈20 AWG) — — — × W17 OEM-4-R · Ignition coil trigger (cyl 2&3) MS3PROMINI-A-18 · Spark out B — 0.5 mm² (≈20 AWG) — — — × W18 OEM-4-U · Injector 1 (cyl 1) MS3PROMINI-A-10 · Injector out F — 0.5 mm² (≈20 AWG) — — — × W19 OEM-4-V · Injector 2 (cyl 2) MS3PROMINI-A-11 · Injector out G — 0.5 mm² (≈20 AWG) — — — × W20 OEM-4-W · Injector 3 (cyl 3) MS3PROMINI-A-12 · Injector out H — 0.5 mm² (≈20 AWG) — — — × W21 OEM-4-X · Injector 4 (cyl 4) MS3PROMINI-A-5 · Injector out A — 0.5 mm² (≈20 AWG) — — — × W22 OEM-3-B · MAF sensor input MS3PROMINI-A-13 · Analog in 1 — 0.5 mm² (≈20 AWG) — — — × W23 OEM-3-F · Throttle position (TPS) MS3PROMINI-A-28 · TPS in — 0.5 mm² (≈20 AWG) — — — × W24 OEM-3-G · Engine coolant temp (CLT) MS3PROMINI-A-26 · CLT in — 0.5 mm² (≈20 AWG) — — — × W25 OEM-1-A · Cooling fan relay (low-side) MS3PROMINI-A-4 · Fuel pump out — 0.5 mm² (≈20 AWG) — — — × W26 OEM-1-B · A/C condenser fan relay MS3PROMINI-A-3 · PWM out 1 / Idle — 0.5 mm² (≈20 AWG) — — — × W27 OEM-1-G · A/C clutch relay MS3PROMINI-A-6 · Injector out B — 0.5 mm² (≈20 AWG) — — — × W28 OEM-1-U · Fuel pump relay (low-side) MS3PROMINI-A-7 · Injector out C — 0.5 mm² (≈20 AWG) — — — × W29 OEM-3-M · Front O2 heater control MS3PROMINI-A-8 · Injector out D — 0.5 mm² (≈20 AWG) — — — × W30 OEM-1-E · Check engine light (MIL) MS3PROMINI-A-9 · Injector out E — 0.5 mm² (≈20 AWG) — — — × W31 OEM-3-H · EGR boost sensor MS3PROMINI-A-14 · Analog in 2 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-3-N · EGR boost sensor (2nd channel) MS3PROMINI-A-15 · Analog in 3 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-3-C · Front O2 sensor input MS3PROMINI-A-16 · Analog in 4 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-3-K · Intake air temp (IAT) MS3PROMINI-A-27 · IAT in — 0.5 mm² (≈20 AWG) — — — × W35 OEM-1-M · Vehicle speed sensor (VSS) MS3PROMINI-A-34 · Digital frequency in 1 (Hall) — 0.5 mm² (≈20 AWG) — — — × W36 OEM-1-C · Starter input (12V while cranking) MS3PROMINI-A-29 · Digital switched in 1 / Flex fuel — 0.5 mm² (≈20 AWG) — — — × W37 OEM-1-K · A/C pressure switch (A/C request) MS3PROMINI-A-35 · Digital frequency in 2 (Hall) — 0.5 mm² (≈20 AWG) — — — ×