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 SHADOW8-A-1 · ECU supply — 0.85 mm² (≈18 AWG) — — — × W4 SP-14V-1 SHADOW8-B-26 · Aux 9–12 power supply — 0.85 mm² (≈18 AWG) — — — × W5 OEM-T121-62 · Battery constant +12V (term 30) SHADOW8-B-1 · Battery constant (HOT) supply — 0.85 mm² (≈18 AWG) — — — × W6 OEM-T121-1 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W7 OEM-T121-2 · ECU ground SP-GND-1 — 0.85 mm² (≈18 AWG) — — — × W8 SP-GND-1 SHADOW8-A-34 · Ground 2 — 0.85 mm² (≈18 AWG) — — — × W9 SP-GND-1 SHADOW8-A-9 · Ground 1 — 0.85 mm² (≈18 AWG) — — — × W10 OEM-T121-108 · Sensor ground SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W11 OEM-T121-29 · MAF sensor ground (G70) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W12 OEM-T121-34 · Accelerator pedal position 1 ground (G79) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W13 OEM-T121-36 · Accelerator pedal position 2 ground (G185) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W14 OEM-T121-90 · Crank position sensor ground (G28) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W15 OEM-T121-91 · Throttle position sensor ground (G187/G188) SP-0V-1 — 0.5 mm² (≈20 AWG) — — — × W16 SP-0V-1 SHADOW8-A-4 · 0V analog reference — 0.5 mm² (≈20 AWG) — — — × W17 SP-0V-1 SHADOW8-A-7 · Trigger ground — 0.5 mm² (≈20 AWG) — — — × W18 OEM-T121-72 · Accelerator pedal position 1 5V supply (G79) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W19 OEM-T121-73 · Accelerator pedal position 2 5V supply (G185) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W20 OEM-T121-83 · Throttle position sensor 5V supply (G187/G188) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W21 OEM-T121-98 · Cam + boost sensor 5V supply (G40/G31) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W22 OEM-T121-99 · Knock sensor 5V supply (G61/G66) SP-5V1-1 — 0.5 mm² (≈20 AWG) — — — × W23 SP-5V1-1 SHADOW8-A-3 · 5.0V sensor supply — 0.5 mm² (≈20 AWG) — — — × W24 OEM-T121-82 · Crank position sensor (G28) SHADOW8-A-5 · Crank position sensor — 0.5 mm² (≈20 AWG) — — — × W25 OEM-T121-86 · Camshaft position sensor (G40) SHADOW8-A-6 · Sync position sensor — 0.5 mm² (≈20 AWG) — — — × W26 OEM-T121-106 · Knock sensor 1 (G61) SHADOW8-A-16 · Knock 1 + — 0.5 mm² (≈20 AWG) — — — × W27 OEM-T121-107 · Knock sensor 2 (G66) SHADOW8-A-24 · Knock 2 + — 0.5 mm² (≈20 AWG) — — — × W28 OEM-T121-102 · Ignition coil 1 (N127) SHADOW8-B-27 · Ignition TTL cylinder 1 — 0.5 mm² (≈20 AWG) — — — × W29 OEM-T121-95 · Ignition coil 2 (N128) SHADOW8-B-28 · Ignition TTL cylinder 2 — 0.5 mm² (≈20 AWG) — — — × W30 OEM-T121-103 · Ignition coil 3 (N158) SHADOW8-B-29 · Ignition TTL cylinder 3 — 0.5 mm² (≈20 AWG) — — — × W31 OEM-T121-94 · Ignition coil 4 (N163) SHADOW8-B-30 · Ignition TTL cylinder 4 — 0.5 mm² (≈20 AWG) — — — × W32 OEM-T121-96 · Injector 1 (N30) SHADOW8-B-2 · Injector cylinder 1 — 0.5 mm² (≈20 AWG) — — — × W33 OEM-T121-89 · Injector 2 (N31) SHADOW8-B-3 · Injector cylinder 2 — 0.5 mm² (≈20 AWG) — — — × W34 OEM-T121-97 · Injector 3 (N32) SHADOW8-B-4 · Injector cylinder 3 — 0.5 mm² (≈20 AWG) — — — × W35 OEM-T121-88 · Injector 4 (N33) SHADOW8-B-5 · Injector cylinder 4 — 0.5 mm² (≈20 AWG) — — — × W36 OEM-T121-118 · Throttle motor G186 (−) SHADOW8-B-23 · Aux output 10 — 0.5 mm² (≈20 AWG) — — — × W37 OEM-T121-117 · Throttle motor G186 (+) SHADOW8-B-22 · Aux output 9 — 0.5 mm² (≈20 AWG) — — — × W38 OEM-T121-3 · Ignition switch +12V (term 15) SHADOW8-B-21 · Digital input 10 / ignition switch — 0.5 mm² (≈20 AWG) — — — × W39 OEM-T121-53 · MAF sensor signal (G70) SHADOW8-A-10 · Analog voltage 1 — 0.5 mm² (≈20 AWG) — — — × W40 OEM-T121-101 · Boost pressure sensor (G31) SHADOW8-A-11 · Analog voltage 2 — 0.5 mm² (≈20 AWG) — — — × W41 OEM-T121-33 · Accelerator pedal position 1 (G79) SHADOW8-A-12 · Analog voltage 3 — 0.5 mm² (≈20 AWG) — — — × W42 OEM-T121-84 · Throttle position sensor 1 (G187) SHADOW8-A-13 · Analog voltage 4 — 0.5 mm² (≈20 AWG) — — — × W43 OEM-T121-35 · Accelerator pedal position 2 (G185) SHADOW8-A-14 · Analog voltage 5 — 0.5 mm² (≈20 AWG) — — — × W44 OEM-T121-92 · Throttle position sensor 2 (G188) SHADOW8-A-18 · Analog voltage 6 — 0.5 mm² (≈20 AWG) — — — × W45 OEM-T121-93 · Engine coolant temperature (G62) SHADOW8-A-19 · Analog voltage 7 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W46 OEM-T121-65 · Fuel pump relay control SHADOW8-B-10 · Aux output 1 — 0.5 mm² (≈20 AWG) — — — × W47 OEM-T121-66 · Secondary-air pump relay (J299) SHADOW8-B-11 · Aux output 2 — 0.5 mm² (≈20 AWG) — — — × W48 OEM-T121-5 · Wideband lambda heater (Z19) SHADOW8-B-12 · Aux output 3 — 0.5 mm² (≈20 AWG) — — — × W49 OEM-T121-63 · Post-cat lambda heater (Z29) SHADOW8-B-13 · Aux output 4 — 0.5 mm² (≈20 AWG) — — — × W50 OEM-T121-104 · Boost control solenoid (N75) SHADOW8-B-14 · Aux output 5 — 0.5 mm² (≈20 AWG) — — — × W51 OEM-T121-105 · Diverter valve (N249) SHADOW8-B-15 · Aux output 6 — 0.5 mm² (≈20 AWG) — — — × W52 OEM-T121-115 · VVT camshaft adjustment valve (N205) SHADOW8-B-16 · Aux output 7 — 0.5 mm² (≈20 AWG) — — — × W53 OEM-T121-47 · Check engine light (MIL) SHADOW8-B-17 · Aux output 8 — 0.5 mm² (≈20 AWG) — — — × W54 OEM-T121-48 · EPC warning light SHADOW8-B-6 · Injector cylinder 5 — 0.5 mm² (≈20 AWG) — — — × W55 OEM-T121-64 · EVAP canister valve (N80) SHADOW8-B-7 · Injector cylinder 6 — 0.5 mm² (≈20 AWG) — — — × W56 OEM-T121-9 · Secondary-air injection valve (N112) SHADOW8-B-8 · Injector cylinder 7 — 0.5 mm² (≈20 AWG) — — — × W57 OEM-T121-68 · Post-cat lambda signal (G130) SHADOW8-A-20 · Analog voltage 8 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W58 OEM-T121-69 · Post-cat lambda signal (G130) SHADOW8-A-21 · Analog voltage 9 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W59 OEM-T121-85 · Intake air temperature (G42) SHADOW8-A-22 · Analog voltage 10 (switchable 1k pull-up) — 0.5 mm² (≈20 AWG) — — — × W60 OEM-T121-54 · Road speed signal (VSS) SHADOW8-A-26 · Digital input 1 — 0.5 mm² (≈20 AWG) — — — × W61 OEM-T121-60 · CAN bus high SHADOW8-A-15 · CAN bus 1 high — 0.5 mm² (≈20 AWG) — — — × W62 OEM-T121-58 · CAN bus low SHADOW8-A-23 · CAN bus 1 low — 0.5 mm² (≈20 AWG) — — — ×