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Old 04-27-2020, 02:42 PM   #10
Scooby Newbie
Member#: 514155
Join Date: Apr 2020

Hey, I am trying the same swap but a 04 sti ecu into my 05 forester.

I did notice that according to my pinout diagrams the 05 FXT test mode connector is 12v when the sti one is 5v, unfortunately that was after I hooked it up. Also, my FXT ignition switch is documented to be in B137 - 16 instead of your 14.

Also, I am having major issues with no response from the new ecu, and after testing pins out of the wiring harness I think that I am not getting the correct IGN, test mode connector, and A/C voltage redouts. one stars at 12v constant in any key position and the others do not get any voltage.

My question for you is if you tested the pins did they match the documentation, and how did you know your ecu was locked? Did you leave your immobilizer box plugged in? Any suggestions on what I can check? My fuses seem fine.
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EliGoethel is offline   Reply With Quote