The Subaru SVX World Network - TCU pin assignment

The Subaru SVX World Network (https://www.subaru-svx.net/forum/index.php)

- Technical Q & A (https://www.subaru-svx.net/forum/forumdisplay.php?f=5)

- - TCU pin assignment (https://www.subaru-svx.net/forum/showthread.php?t=57820)

processengr

07-11-2011 03:58 PM

TCU pin assignment

After swapping out TCU in our 92 with 444 transmission, having problem with VSS1 not reading. Assuming I have a connection problem with the wiring connectors to the TCU or poorly soldered 28 pin dip, anyone know which positions are related to VSS1?
It is difficult to swap TCUs due to the location, trying to minimize time spent upside down...

icingdeath88

07-11-2011 04:06 PM

Re: TCU pin assignment

I was under the impression that you weren't supposed to swap TCUs when doing the 4.44 swap. Or did you swap it out because it was bad?

processengr

07-11-2011 05:58 PM

Re: TCU pin assignment

Quote:

Originally Posted by icingdeath88 (Post 681602)

I was under the impression that you weren't supposed to swap TCUs when doing the 4.44 swap. Or did you swap it out because it was bad?

Swapped in unit with ECUtune ROM

Earthworm

07-12-2011 07:58 AM

Re: TCU pin assignment

Can you confirm the speed sensor still works?

processengr

07-12-2011 08:28 AM

Re: TCU pin assignment

Quote:

Originally Posted by Earthworm (Post 681673)

Can you confirm the speed sensor still works?

That sounds like a great idea, how do I test it?

Earthworm

07-12-2011 12:30 PM

Re: TCU pin assignment

When I was testing out the 5spd after I first installed it, all of a sudden the speedometer quit. I ended up taking the sensor out of the 4EAT and using it in the 5spd.

Basically, do you have a working sensor you can borrow?

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