Ecu Pinouts OBD2A help !!!!!!


JohnVteC

Member
Joined
Jan 7, 2009
Messages
56
Car(s)
Honda Civic Ek3 1999 4door Vi-RS / Honda Civic Ek3 1996 2door HatchBack B18C swap
hi guys i bought a new ecu plug to replace my factory one that has some broken edges and couldn't fit easily on the ecus i have remove all the wires from the connector C that is BLUE color on OBD2A and as i was trying to reinsert the wires to the new connector plug i released that i had 2 same color wires that am not sure if they are common or not or they can work without specific which one will go to the one position or the other, anyone here can help me if knows if those 2 wires are okay to switch or not? or how i can identify what is what and where it goes? its The C11 and C17 on the connector C of OBD2A of Integra Typer b18c or Integra GSR b18c as you can see below this is what i have problem White/Red both wires are the same


nene.jpg
 
Disconnect the 3/4 pin connector on alternator, with a voltage meter put the negative probe on Connector A pin 9 then switch the ignition to position 2. Using the red probe of your voltage meter check both of the white/red wires. Which ever wire reads approx 5volts is your "Alternator FR Signal.
Another method would be to run a wire out to the 3/4 pin alternator connector and insert into white/red wire on plug then do a continuity test against both of the white/red wires at ecu to see which one it is.
 
cheers thank you very much i recognize them and plug them in their position (Y)
 
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