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Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.

Components

RefKindPartExclude from BOM
ME221-C1connector
OEM-B74connector
OEM-B75connector
OEM-B76connector
OEM-B77connector
OEM-B78connector
OEM-B79connector
SP-0Vsplice
SP-14Vsplice
SP-GNDsplice

Create part

Cut list

Lengths need a layout (0 of 52 routed).

WireFrom / ToGaugeSignal
W1OEM-B78-16 / SP-14V-10.85EFI main relay power (+B)
W2OEM-B78-7 / SP-14V-10.85ETCS-i power (+BM)
W3OEM-B78-8 / SP-14V-10.85EFI main relay power (+B2)
W4SP-14V-1 / ME221-C1-150.85IGN +12V
W5SP-14V-1 / ME221-C1-640.85VBAT
W6OEM-B74-21 / SP-GND-10.85Power ground (E01)
W7OEM-B74-31 / SP-GND-10.85Power ground (E02)
W8OEM-B74-9 / SP-GND-10.85ETCS-i ground (ME01)
W9OEM-B75-17 / SP-GND-10.85Power ground (E1)
W10SP-GND-1 / ME221-C1-100.85GROUND CHASSIS
W11SP-GND-1 / ME221-C1-610.85GROUND
W12SP-GND-1 / ME221-C1-890.85GROUND
W13SP-GND-1 / ME221-C1-900.85GROUND
W14OEM-B74-22 / SP-0V-10.5Crank/cam sensor return (NE-)
W15OEM-B75-18 / SP-0V-10.5Sensor ground (E2)
W16OEM-B75-19 / SP-0V-10.5MAF ground (EVG)
W17OEM-B78-22 / SP-0V-10.5Switch ground (EC)
W18SP-0V-1 / ME221-C1-520.5SENSORS GROUND
W19SP-0V-1 / ME221-C1-840.5Sensor Ground
W20OEM-B75-2 / ME221-C1-450.5Sensor power (VC)
W21OEM-B74-23 / ME221-C1-800.5Crank position (NE+)
W22OEM-B74-10 / ME221-C1-220.5Cam position (G2)
W23OEM-B74-28 / ME221-C1-530.5Knock sensor 1 (KNK1, front)
W24OEM-B74-11 / ME221-C1-320.5Ignition 1 (IGT, cyl 1&6)
W25OEM-B74-12 / ME221-C1-310.5Ignition 2 (IGT2, cyl 5&2)
W26OEM-B74-13 / ME221-C1-20.5Ignition 3 (IGT3, cyl 3&4)
W27OEM-B75-5 / ME221-C1-630.5Injector 1 (#10)
W28OEM-B75-6 / ME221-C1-40.5Injector 2 (#20)
W29OEM-B74-1 / ME221-C1-330.5Injector 3 (#30)
W30OEM-B74-2 / ME221-C1-30.5Injector 4 (#40)
W31OEM-B74-3 / ME221-C1-630.5Injector 5 (#50)
W32OEM-B74-4 / ME221-C1-40.5Injector 6 (#60)
W33OEM-B74-17 / ME221-C1-730.5VVT-i OCV - (OCV-)
W34OEM-B74-18 / ME221-C1-120.5VVT-i OCV + (OCV+)
W35OEM-B74-19 / ME221-C1-740.5ETCS-i clutch - (CL-)
W36OEM-B74-20 / ME221-C1-440.5ETCS-i clutch + (CL+)
W37OEM-B75-9 / ME221-C1-260.5Manifold pressure (PIM)
W38OEM-B75-15 / ME221-C1-560.5Accelerator pedal 1 (VPA)
W39OEM-B75-23 / ME221-C1-170.5Throttle position 1 (VTA)
W40OEM-B75-16 / ME221-C1-180.5Accelerator pedal 2 (VPA2)
W41OEM-B75-14 / ME221-C1-860.5Coolant temperature (THW)
W42OEM-B77-13 / ME221-C1-690.5A/C clutch relay (ACMG)
W43OEM-B78-10 / ME221-C1-390.5EFI main relay control (M-REL)
W44OEM-B75-4 / ME221-C1-160.5O2 sensor heater (HT)
W45OEM-B76-1 / ME221-C1-370.5A/T shift solenoid 1 (S1)
W46OEM-B76-2 / ME221-C1-420.5A/T shift solenoid 2 (S2)
W47OEM-B76-3 / ME221-C1-720.5A/T shift solenoid 3 (S3)
W48OEM-B76-6 / ME221-C1-430.5A/T shift solenoid 4 (S4)
W49OEM-B77-20 / ME221-C1-790.5Tachometer output (TACH)
W50OEM-B75-22 / ME221-C1-570.5Intake air temperature (THA)
W51OEM-B77-25 / ME221-C1-60.5No.1 speed sensor (SPD)
W52OEM-B76-11 / ME221-C1-70.5No.2 speed sensor return (SP2-)

Bill of materials

No parts in this harness.