W1 OEM-T121-121 · ECM + coil power (J271 relay feed) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W2 OEM-T121-21 · ECM power (J271 relay feed) SP-14V-1 — 0.85 mm² (≈18 AWG) — — — × W3 SP-14V-1 MS3PROMINI-A-1 · 12V+ switched power in — 0.85 mm² (≈18 AWG) — — — × W4 OEM-T121-1 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W5 OEM-T121-2 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 SP-GND-1 MS3PROMINI-A-22 · Power ground — 0.85 mm² (≈18 AWG) — — — × W7 SP-GND-1 MS3PROMINI-A-23 · Power ground — 0.85 mm² (≈18 AWG) — — — × W8 OEM-T121-108 · Sensor ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W9 OEM-T121-29 · MAF sensor ground (G70) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 OEM-T121-34 · Accelerator pedal position 1 ground (G79) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-T121-36 · Accelerator pedal position 2 ground (G185) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-T121-90 · Crank position sensor ground (G28) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 OEM-T121-91 · Throttle position sensor ground (G187/G188) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W14 SP-0V-1 MS3PROMINI-A-21 · Sensor ground — 0.5 mm² (≈20 AWG) — — — × W15 OEM-T121-72 · Accelerator pedal position 1 5V supply (G79) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W16 OEM-T121-73 · Accelerator pedal position 2 5V supply (G185) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W17 OEM-T121-83 · Throttle position sensor 5V supply (G187/G188) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W18 OEM-T121-98 · Cam + boost sensor 5V supply (G40/G31) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-T121-99 · Knock sensor 5V supply (G61/G66) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W20 SP-5V1-1 MS3PROMINI-A-2 · +5V VREF out — 0.5 mm² (≈20 AWG) — — — × W21 OEM-T121-82 · Crank position sensor (G28) MS3PROMINI-A-30 · CKP+ — 0.5 mm² (≈20 AWG) — — — × W22 OEM-T121-86 · Camshaft position sensor (G40) MS3PROMINI-A-32 · CMP+ — 0.5 mm² (≈20 AWG) — — — × W23 OEM-T121-102 · Ignition coil 1 (N127) MS3PROMINI-A-17 · Spark out A — 0.5 mm² (≈20 AWG) — — — × W24 OEM-T121-95 · Ignition coil 2 (N128) MS3PROMINI-A-18 · Spark out B — 0.5 mm² (≈20 AWG) — — — × W25 OEM-T121-103 · Ignition coil 3 (N158) MS3PROMINI-A-19 · Spark out C — 0.5 mm² (≈20 AWG) — — — × W26 OEM-T121-94 · Ignition coil 4 (N163) MS3PROMINI-A-20 · Spark out D — 0.5 mm² (≈20 AWG) — — — × W27 OEM-T121-96 · Injector 1 (N30) MS3PROMINI-A-10 · Injector out F — 0.5 mm² (≈20 AWG) — — — × W28 OEM-T121-89 · Injector 2 (N31) MS3PROMINI-A-11 · Injector out G — 0.5 mm² (≈20 AWG) — — — × W29 OEM-T121-97 · Injector 3 (N32) MS3PROMINI-A-12 · Injector out H — 0.5 mm² (≈20 AWG) — — — × W30 OEM-T121-88 · Injector 4 (N33) MS3PROMINI-A-5 · Injector out A — 0.5 mm² (≈20 AWG) — — — × W31 OEM-T121-53 · MAF sensor signal (G70) MS3PROMINI-A-13 · Analog in 1 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-T121-101 · Boost pressure sensor (G31) MS3PROMINI-A-14 · Analog in 2 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-T121-33 · Accelerator pedal position 1 (G79) MS3PROMINI-A-28 · TPS in — 0.5 mm² (≈20 AWG) — — — × W34 OEM-T121-84 · Throttle position sensor 1 (G187) MS3PROMINI-A-15 · Analog in 3 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-T121-35 · Accelerator pedal position 2 (G185) MS3PROMINI-A-16 · Analog in 4 — 0.5 mm² (≈20 AWG) — — — × W36 OEM-T121-93 · Engine coolant temperature (G62) MS3PROMINI-A-26 · CLT in — 0.5 mm² (≈20 AWG) — — — × W37 OEM-T121-65 · Fuel pump relay control MS3PROMINI-A-4 · Fuel pump out — 0.5 mm² (≈20 AWG) — — — × W38 OEM-T121-66 · Secondary-air pump relay (J299) MS3PROMINI-A-3 · PWM out 1 / Idle — 0.5 mm² (≈20 AWG) — — — × W39 OEM-T121-5 · Wideband lambda heater (Z19) MS3PROMINI-A-6 · Injector out B — 0.5 mm² (≈20 AWG) — — — × W40 OEM-T121-63 · Post-cat lambda heater (Z29) MS3PROMINI-A-7 · Injector out C — 0.5 mm² (≈20 AWG) — — — × W41 OEM-T121-104 · Boost control solenoid (N75) MS3PROMINI-A-8 · Injector out D — 0.5 mm² (≈20 AWG) — — — × W42 OEM-T121-105 · Diverter valve (N249) MS3PROMINI-A-9 · Injector out E — 0.5 mm² (≈20 AWG) — — — × W43 OEM-T121-85 · Intake air temperature (G42) MS3PROMINI-A-27 · IAT in — 0.5 mm² (≈20 AWG) — — — × W44 OEM-T121-54 · Road speed signal (VSS) MS3PROMINI-A-34 · Digital frequency in 1 (Hall) — 0.5 mm² (≈20 AWG) — — — × W45 OEM-T121-60 · CAN bus high MS3PROMINI-A-25 · CAN High — 0.5 mm² (≈20 AWG) — — — × W46 OEM-T121-58 · CAN bus low MS3PROMINI-A-24 · CAN Low — 0.5 mm² (≈20 AWG) — — — ×