5-12ECM coupler layout012345678910AECM coupler layout1 2 3 4 5 6 7 8 9 1011121314151617181920212223242526272829303132333435363738394041424344No. Connecting part Color1 6Y8 MultifunctionMeterWhite2 Remote control Green3 Remote control Pink4 Remote control White5 Water detection switch Blue/White67 Air temperature sensor Black/Yellow8 Sensor ground Black9 Shift cut switch Blue/Yellow10 Sensor power source Orange11 Water pressure sensor Blue/White12 Speed sensor Blue13 Engine start switch Yellow14 Pulser coil #1 White/Red15 Pulser coil #2 White/Black16 Main relay Yellow/Green17 Fuel injector #4 Purple/Green18 ISC Green/Black19 ISC Green20 ISC Green/Red21 ISC Green/Yellow22 Ignition coil #1, 4 Black/Orange23 6Y8 MultifunctionMeterBlue24 Alert indicator (low oilpressure) Pink/White2526 YDIS White/Black27 Diagnostic flash indi-cator Blue/White28 Alert indicator(overheat) Pink/Black29 Oil pressure sensor Pink/White30 Battery power source Red/Yellow31 Neutral switch Blue/Green32 Ground Black33 Air pressure sensor Pink/Green34 TPS Pink35 Engine temperaturesensor Black/Yellow36 Trim sensor Pink37 Thermoswitch Pink3839 Fuel injector #2 Purple/Black40 Fuel injector #1 Purple/Red41 Fuel injector #3 Purple/Yellow42 Ground Black43 High-pressure fuelpump Blue44 Ignition coil #2, 3 Black/WhiteNo. Connecting part ColorCircuit diagram / ECM coupler layout