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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-X60001connector
OEM-X60002connector
OEM-X60003connector
OEM-X60004connector
OEM-X60005connector
SP-0Vsplice
SP-14Vsplice
SP-5V1splice
SP-GNDsplice

Create part

Cut list

Lengths need a layout (0 of 61 routed).

WireFrom / ToGaugeSignal
W1OEM-X60001-2 / SP-14V-10.85DBW output-stage supply (P_DKSM+)
W2OEM-X60001-8 / SP-14V-10.85ECU main power (terminal 87 via main relay)
W3OEM-X60003-4 / SP-14V-10.85MAF supply
W4OEM-X60003-5 / SP-14V-10.85Throttle (EDK/ITB) supply
W5SP-14V-1 / ME221-C1-150.85IGN +12V
W6SP-14V-1 / ME221-C1-640.85VBAT
W7OEM-X60001-4 / SP-GND-10.85Power ground
W8OEM-X60001-5 / SP-GND-10.85Power ground
W9OEM-X60001-6 / SP-GND-10.85Power ground
W10OEM-X60001-9 / SP-GND-10.85DBW output-stage return (P_DKSM-)
W11OEM-X60005-5 / SP-GND-10.85Ignition ground
W12SP-GND-1 / ME221-C1-100.85GROUND CHASSIS
W13SP-GND-1 / ME221-C1-610.85GROUND
W14SP-GND-1 / ME221-C1-890.85GROUND
W15SP-GND-1 / ME221-C1-900.85GROUND
W16OEM-X60003-15 / SP-0V-10.5Throttle ground
W17OEM-X60003-35 / SP-0V-10.5ECT ground
W18OEM-X60003-36 / SP-0V-10.5Intake camshaft ground
W19OEM-X60003-37 / SP-0V-10.5Crankshaft ground
W20OEM-X60003-45 / SP-0V-10.5Oil temperature ground
W21OEM-X60003-49 / SP-0V-10.5Exhaust camshaft ground
W22OEM-X60004-12 / SP-0V-10.5Pedal ground 2
W23OEM-X60004-7 / SP-0V-10.5Pedal ground 1
W24SP-0V-1 / ME221-C1-520.5SENSORS GROUND
W25SP-0V-1 / ME221-C1-840.5Sensor Ground
W26OEM-X60004-14 / SP-5V1-10.5Pedal +5V supply 2
W27OEM-X60004-9 / SP-5V1-10.5Pedal +5V supply 1
W28SP-5V1-1 / ME221-C1-450.55V REF
W29OEM-X60003-3 / ME221-C1-800.5Crankshaft position
W30OEM-X60003-30 / ME221-C1-220.5Exhaust camshaft position
W31OEM-X60003-29 / ME221-C1-230.5Intake camshaft position
W32OEM-X60003-33 / ME221-C1-530.5Knock sensor 1
W33OEM-X60005-6 / ME221-C1-320.5Ignition coil 1
W34OEM-X60005-7 / ME221-C1-310.5Ignition coil 2
W35OEM-X60005-4 / ME221-C1-20.5Ignition coil 3
W36OEM-X60005-8 / ME221-C1-10.5Ignition coil 4
W37OEM-X60003-13 / ME221-C1-630.5Injector cylinder 1
W38OEM-X60003-6 / ME221-C1-40.5Injector cylinder 2
W39OEM-X60003-26 / ME221-C1-330.5Injector cylinder 3
W40OEM-X60003-7 / ME221-C1-30.5Injector cylinder 4
W41OEM-X60003-11 / ME221-C1-630.5Injector cylinder 5
W42OEM-X60003-8 / ME221-C1-40.5Injector cylinder 6
W43OEM-X60003-1 / ME221-C1-260.5Mass air flow (MAF) signal
W44OEM-X60003-32 / ME221-C1-560.5Throttle position sensor 1
W45OEM-X60004-8 / ME221-C1-170.5Pedal position signal 1
W46OEM-X60003-31 / ME221-C1-180.5Throttle position sensor 2
W47OEM-X60003-28 / ME221-C1-860.5Engine coolant temperature (ECT)
W48OEM-X60001-1 / ME221-C1-370.5Injector relay control
W49OEM-X60002-23 / ME221-C1-420.5Main relay control
W50OEM-X60004-10 / ME221-C1-720.5Fuel pump relay control
W51OEM-X60002-1 / ME221-C1-160.5O2 sensor heater, front 1 (pre-cat)
W52OEM-X60002-12 / ME221-C1-730.5O2 sensor heater, rear 2 (post-cat)
W53OEM-X60002-2 / ME221-C1-120.5O2 sensor heater, front 2 (pre-cat)
W54OEM-X60002-6 / ME221-C1-740.5O2 sensor heater, rear 1 (post-cat)
W55OEM-X60003-10 / ME221-C1-440.5VANOS intake solenoid
W56OEM-X60003-12 / ME221-C1-690.5Map-controlled thermostat
W57OEM-X60003-21 / ME221-C1-390.5Evap purge valve
W58OEM-X60003-9 / ME221-C1-430.5VANOS exhaust solenoid
W59OEM-X60003-27 / ME221-C1-570.5Intake air temperature (IAT)
W60OEM-X60003-16 / ME221-C1-60.5Oil pressure switch
W61OEM-X60003-50 / ME221-C1-70.5Oil level switch

Bill of materials

No wire parts assigned: 61 wires need a wire part.

Part numberManufacturerDescriptionQtyUnitUnit priceBuy
connector1 line
BMW-E46-MSS54-CONNBMWE46 DME (MSS54) harness connector1eaMouser ↗Digi-Key ↗Amazon ↗