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 SL4-A-34 · Aux 9–10 14V supply — 0.85 mm² (≈18 AWG) — — — × W4 SP-14V-1 SL4-B-1 · ECU 14V supply — 0.85 mm² (≈18 AWG) — — — × W5 OEM-T121-1 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W6 OEM-T121-2 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 SP-GND-1 SL4-B-18 · ECU ground — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 SL4-B-26 · ECU ground — 0.85 mm² (≈18 AWG) — — — × W9 OEM-T121-108 · Sensor ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W10 OEM-T121-29 · MAF sensor ground (G70) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-T121-34 · Accelerator pedal position 1 ground (G79) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-T121-36 · Accelerator pedal position 2 ground (G185) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 OEM-T121-90 · Crank position sensor ground (G28) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W14 OEM-T121-91 · Throttle position sensor ground (G187/G188) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W15 SP-0V-1 SL4-B-10 · Analog sensor 0V reference — 0.5 mm² (≈20 AWG) — — — × W16 OEM-T121-72 · Accelerator pedal position 1 5V supply (G79) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W17 OEM-T121-73 · Accelerator pedal position 2 5V supply (G185) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W18 OEM-T121-83 · Throttle position sensor 5V supply (G187/G188) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-T121-98 · Cam + boost sensor 5V supply (G40/G31) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-T121-99 · Knock sensor 5V supply (G61/G66) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W21 SP-5V1-1 SL4-B-2 · Sensor supply Vref1 5.0V — 0.5 mm² (≈20 AWG) — — — × W22 OEM-T121-82 · Crank position sensor (G28) SL4-B-5 · Crank index sensor + — 0.5 mm² (≈20 AWG) — — — × W23 SP-0V-1 SL4-B-6 · Crank index sensor − — 0.5 mm² (≈20 AWG) — — — × W24 OEM-T121-86 · Camshaft position sensor (G40) SL4-B-7 · Sync sensor + — 0.5 mm² (≈20 AWG) — — — × W25 SP-0V-1 SL4-B-8 · Sync sensor − — 0.5 mm² (≈20 AWG) — — — × W26 OEM-T121-106 · Knock sensor 1 (G61) SL4-B-16 · Knock 1 + — 0.5 mm² (≈20 AWG) — — — × W27 OEM-T121-107 · Knock sensor 2 (G66) SL4-B-24 · Knock 2 + — 0.5 mm² (≈20 AWG) — — — × W28 OEM-T121-102 · Ignition coil 1 (N127) SL4-A-26 · Ignition channel 1 — 0.5 mm² (≈20 AWG) — — — × W29 OEM-T121-95 · Ignition coil 2 (N128) SL4-A-27 · Ignition channel 2 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-T121-103 · Ignition coil 3 (N158) SL4-A-28 · Ignition channel 3 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-T121-94 · Ignition coil 4 (N163) SL4-A-29 · Ignition channel 4 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-T121-96 · Injector 1 (N30) SL4-A-1 · Injection channel 1 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-T121-89 · Injector 2 (N31) SL4-A-2 · Injection channel 2 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-T121-97 · Injector 3 (N32) SL4-A-3 · Injection channel 3 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-T121-88 · Injector 4 (N33) SL4-A-4 · Injection channel 4 — 0.5 mm² (≈20 AWG) — — — × W36 OEM-T121-118 · Throttle motor G186 (−) SL4-A-19 · Auxiliary output 10 — 0.5 mm² (≈20 AWG) — — — × W37 OEM-T121-117 · Throttle motor G186 (+) SL4-A-18 · Auxiliary output 9 — 0.5 mm² (≈20 AWG) — — — × W38 OEM-T121-3 · Ignition switch +12V (term 15) SL4-B-4 · Ignition switch input — 0.5 mm² (≈20 AWG) — — — × W39 OEM-T121-53 · MAF sensor signal (G70) SL4-B-11 · Analog input 1 — 0.5 mm² (≈20 AWG) — — — × W40 OEM-T121-101 · Boost pressure sensor (G31) SL4-B-12 · Analog input 2 — 0.5 mm² (≈20 AWG) — — — × W41 OEM-T121-33 · Accelerator pedal position 1 (G79) SL4-B-13 · Analog input 3 — 0.5 mm² (≈20 AWG) — — — × W42 OEM-T121-84 · Throttle position sensor 1 (G187) SL4-B-14 · Analog input 4 — 0.5 mm² (≈20 AWG) — — — × W43 OEM-T121-35 · Accelerator pedal position 2 (G185) SL4-B-15 · Analog input 5 — 0.5 mm² (≈20 AWG) — — — × W44 OEM-T121-92 · Throttle position sensor 2 (G188) SL4-B-19 · Analog input 6 — 0.5 mm² (≈20 AWG) — — — × W45 OEM-T121-93 · Engine coolant temperature (G62) SL4-B-20 · Analog input 7 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W46 OEM-T121-65 · Fuel pump relay control SL4-B-3 · EFI relay output (low side, 200 mA) — 0.5 mm² (≈20 AWG) — — — × W47 OEM-T121-66 · Secondary-air pump relay (J299) SL4-A-14 · Auxiliary output 5 — 0.5 mm² (≈20 AWG) — — — × W48 OEM-T121-5 · Wideband lambda heater (Z19) SL4-A-15 · Auxiliary output 6 — 0.5 mm² (≈20 AWG) — — — × W49 OEM-T121-63 · Post-cat lambda heater (Z29) SL4-A-16 · Auxiliary output 7 — 0.5 mm² (≈20 AWG) — — — × W50 OEM-T121-104 · Boost control solenoid (N75) SL4-A-17 · Auxiliary output 8 — 0.5 mm² (≈20 AWG) — — — × W51 OEM-T121-105 · Diverter valve (N249) SL4-A-10 · Auxiliary output 1 — 0.5 mm² (≈20 AWG) — — — × W52 OEM-T121-115 · VVT camshaft adjustment valve (N205) SL4-A-11 · Auxiliary output 2 — 0.5 mm² (≈20 AWG) — — — × W53 OEM-T121-47 · Check engine light (MIL) SL4-A-12 · Auxiliary output 3 — 0.5 mm² (≈20 AWG) — — — × W54 OEM-T121-48 · EPC warning light SL4-A-13 · Auxiliary output 4 — 0.5 mm² (≈20 AWG) — — — × W55 OEM-T121-68 · Post-cat lambda signal (G130) SL4-B-21 · Analog input 8 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W56 OEM-T121-69 · Post-cat lambda signal (G130) SL4-B-22 · Analog input 9 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W57 OEM-T121-85 · Intake air temperature (G42) SL4-B-23 · Analog input 10 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W58 OEM-T121-54 · Road speed signal (VSS) SL4-A-20 · Digital input 1 — 0.5 mm² (≈20 AWG) — — — × W59 OEM-T121-60 · CAN bus high SL4-B-27 · CAN 1 H — 0.5 mm² (≈20 AWG) — — — × W60 OEM-T121-58 · CAN bus low SL4-B-28 · CAN 1 L — 0.5 mm² (≈20 AWG) — — — ×