W1 OEM-4-B · ECU power +12V (main relay) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 SP-14V-1 MS3PROULTIMA-A-35 · 12V+ switched power in — 0.85 mm² (≈18 AWG) — — — × W3 OEM-4-I · Permanent +12V (battery) MS3PROULTIMA-C-23 · Keep alive power — 0.85 mm² (≈18 AWG) — — — × W4 OEM-4-A · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-4-C · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 OEM-4-D · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 OEM-4-K · Chassis ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 MS3PROULTIMA-A-13 · Power ground — 0.85 mm² (≈18 AWG) — — — × W9 SP-GND-1 MS3PROULTIMA-B-18 · Ground — 0.85 mm² (≈18 AWG) — — — × W10 SP-GND-1 MS3PROULTIMA-B-3 · Ground — 0.85 mm² (≈18 AWG) — — — × W11 SP-GND-1 MS3PROULTIMA-B-5 · Ground — 0.85 mm² (≈18 AWG) — — — × W12 SP-GND-1 MS3PROULTIMA-B-7 · Ground — 0.85 mm² (≈18 AWG) — — — × W13 SP-GND-1 MS3PROULTIMA-B-9 · Ground — 0.85 mm² (≈18 AWG) — — — × W14 OEM-3-O · Sensor ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W15 OEM-4-H · Crank pickup timing ground (CKP gnd) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W16 SP-0V-1 MS3PROULTIMA-A-16 · Logic ground — 0.5 mm² (≈20 AWG) — — — × W17 SP-0V-1 MS3PROULTIMA-A-18 · Sensor return — 0.5 mm² (≈20 AWG) — — — × W18 SP-0V-1 MS3PROULTIMA-C-17 · Sensor return — 0.5 mm² (≈20 AWG) — — — × W19 SP-0V-1 MS3PROULTIMA-C-18 · Sensor return — 0.5 mm² (≈20 AWG) — — — × W20 SP-0V-1 MS3PROULTIMA-C-19 · Sensor return — 0.5 mm² (≈20 AWG) — — — × W21 SP-0V-1 MS3PROULTIMA-C-20 · Sensor return — 0.5 mm² (≈20 AWG) — — — × W22 SP-0V-1 MS3PROULTIMA-C-21 · Sensor return — 0.5 mm² (≈20 AWG) — — — × W23 OEM-3-I · +5V sensor reference MS3PROULTIMA-A-8 · 5V+ VREF out 1 — 0.5 mm² (≈20 AWG) — — — × W24 OEM-4-E · Crank position (CKP) sensor MS3PROULTIMA-A-6 · CKP+ — 0.5 mm² (≈20 AWG) — — — × W25 SP-0V-1 MS3PROULTIMA-A-15 · CKP− — 0.5 mm² (≈20 AWG) — — — × W26 OEM-4-G · CAS SGC (cam sync) MS3PROULTIMA-A-26 · CMP+ — 0.5 mm² (≈20 AWG) — — — × W27 SP-0V-1 MS3PROULTIMA-A-27 · CMP− — 0.5 mm² (≈20 AWG) — — — × W28 OEM-4-F · CAS SGT (cam trigger) MS3PROULTIMA-B-34 · Digital Frequency in 1 VR+ — 0.5 mm² (≈20 AWG) — — — × W29 SP-0V-1 MS3PROULTIMA-B-35 · Digital Frequency in 1 VR− — 0.5 mm² (≈20 AWG) — — — × W30 OEM-4-N · Ignition coil trigger (cyl 1&4) MS3PROULTIMA-B-13 · Spark out G — 0.5 mm² (≈20 AWG) — — — × W31 OEM-4-R · Ignition coil trigger (cyl 2&3) MS3PROULTIMA-B-14 · Spark out E — 0.5 mm² (≈20 AWG) — — — × W32 OEM-4-U · Injector 1 (cyl 1) MS3PROULTIMA-A-3 · Injector out J — 0.5 mm² (≈20 AWG) — — — × W33 OEM-4-V · Injector 2 (cyl 2) MS3PROULTIMA-A-4 · Injector out I — 0.5 mm² (≈20 AWG) — — — × W34 OEM-4-W · Injector 3 (cyl 3) MS3PROULTIMA-B-1 · Injector out A — 0.5 mm² (≈20 AWG) — — — × W35 OEM-4-X · Injector 4 (cyl 4) MS3PROULTIMA-B-10 · Injector out F — 0.5 mm² (≈20 AWG) — — — × W36 OEM-3-B · MAF sensor input MS3PROULTIMA-A-19 · Analog in 1 — 0.5 mm² (≈20 AWG) — — — × W37 OEM-3-F · Throttle position (TPS) MS3PROULTIMA-A-9 · TPS in — 0.5 mm² (≈20 AWG) — — — × W38 OEM-3-G · Engine coolant temp (CLT) MS3PROULTIMA-A-11 · CLT in — 0.5 mm² (≈20 AWG) — — — × W39 OEM-1-A · Cooling fan relay (low-side) MS3PROULTIMA-A-28 · Fuel pump relay out — 0.5 mm² (≈20 AWG) — — — × W40 OEM-1-B · A/C condenser fan relay MS3PROULTIMA-A-14 · PWM / Idle Out 1 — 0.5 mm² (≈20 AWG) — — — × W41 OEM-1-G · A/C clutch relay MS3PROULTIMA-C-4 · Digital out 1 — 0.5 mm² (≈20 AWG) — — — × W42 OEM-1-U · Fuel pump relay (low-side) MS3PROULTIMA-A-29 · PWM out 2 — 0.5 mm² (≈20 AWG) — — — × W43 OEM-3-M · Front O2 heater control MS3PROULTIMA-C-3 · Digital out 2 — 0.5 mm² (≈20 AWG) — — — × W44 OEM-1-E · Check engine light (MIL) MS3PROULTIMA-A-30 · PWM out 3 — 0.5 mm² (≈20 AWG) — — — × W45 OEM-4-J · PRC solenoid (FPR control) MS3PROULTIMA-C-2 · PWM out 4 — 0.5 mm² (≈20 AWG) — — — × W46 OEM-4-O · EGR vent solenoid MS3PROULTIMA-C-1 · PWM out 5 — 0.5 mm² (≈20 AWG) — — — × W47 OEM-4-P · EGR vacuum solenoid MS3PROULTIMA-A-1 · High current out 1 — 0.5 mm² (≈20 AWG) — — — × W48 OEM-4-Q · Idle air control (IAC) valve MS3PROULTIMA-A-2 · High current out 2 — 0.5 mm² (≈20 AWG) — — — × W49 OEM-4-T · EVAP purge solenoid MS3PROULTIMA-A-5 · High current out 3 — 0.5 mm² (≈20 AWG) — — — × W50 OEM-4-L · Tachometer output MS3PROULTIMA-A-24 · Tach out — 0.5 mm² (≈20 AWG) — — — × W51 OEM-3-H · EGR boost sensor MS3PROULTIMA-A-20 · Analog in 2 — 0.5 mm² (≈20 AWG) — — — × W52 OEM-3-N · EGR boost sensor (2nd channel) MS3PROULTIMA-A-21 · Analog in 3 — 0.5 mm² (≈20 AWG) — — — × W53 OEM-3-C · Front O2 sensor input MS3PROULTIMA-A-25 · O2 in — 0.5 mm² (≈20 AWG) — — — × W54 OEM-3-D · Rear O2 sensor input MS3PROULTIMA-A-22 · Analog In 4 — 0.5 mm² (≈20 AWG) — — — × W55 OEM-3-K · Intake air temp (IAT) MS3PROULTIMA-A-10 · MAT in — 0.5 mm² (≈20 AWG) — — — × W56 OEM-3-J · EGR valve position sensor MS3PROULTIMA-A-23 · Analog In 5 — 0.5 mm² (≈20 AWG) — — — × W57 OEM-1-M · Vehicle speed sensor (VSS) MS3PROULTIMA-B-28 · Digital frequency in 1 — 0.5 mm² (≈20 AWG) — — — × W58 OEM-1-C · Starter input (12V while cranking) MS3PROULTIMA-A-32 · Digital switched in 1 — 0.5 mm² (≈20 AWG) — — — × W59 OEM-1-K · A/C pressure switch (A/C request) MS3PROULTIMA-B-20 · Digital switched in 2 — 0.5 mm² (≈20 AWG) — — — × W60 OEM-1-L · Clutch switch MS3PROULTIMA-B-29 · Digital switched in 3 — 0.5 mm² (≈20 AWG) — — — × W61 OEM-1-Q · Brake switch MS3PROULTIMA-C-11 · Digital switched in 4 — 0.5 mm² (≈20 AWG) — — — × W62 OEM-3-L · Idle switch (closed throttle) MS3PROULTIMA-C-10 · Digital switched in 5 — 0.5 mm² (≈20 AWG) — — — × W63 OEM-3-P · Power steering pressure switch MS3PROULTIMA-B-17 · Digital frequency in 2 — 0.5 mm² (≈20 AWG) — — — ×