looking for h6 electrical help manual swap

ive been helping a friend do a manual swap on a 2004 h6 outback the swap is done and the car runs well being a manual but we are getting a p0866 TCM Communication Circuit High code so far the only code its spitting out. is there a way to work around this code short of plugging a transmission back into it? we did build a resistor line to mimic the transmissions sensors/solenoids and the tcu is still plugged in but its not happy about something.

The second gens have a pin at the ECU that you ground to signal that there is no TCM and make the car into a manual. I'd look to see if there is a similar pin for the third gen.

The second gens have a pin at the ECU that you ground to signal that there is no TCM and make the car into a manual. I'd look to see if there is a similar pin for the third gen.

 

i do not think this is a thing on the h6 as it was not offered in manual. we've been through the wiring schematics too and dident see anything about a pin on the ecu for manual with the h6. so far the car runs great and it spits the p0866 code every 3rd start. when the p0866 code is set the car runs poorly and will want to stall coming to a stop until the code is cleared and then will run great again for the next 3 restarts until the code is set again. speed signal is wired into the ecu and cluster reverse lights hooked up now as well. if we cant find a way around this code might buy a tactrix cable and remove the code from the ecu.

Edited February 20, 2020 by sirtokesalot

Yep, Tactrix was my next thought. My Tactrix lives with me in AZ. You're probably far away?