legacycentral bbs

This weekend I'm hoping to do the final wiring on my car and have found all the pinouts I need except for one. The RPM signal that gets coming into the TCU.

I've looked through the FSM's and I found the two pages that have the table of TCU pinouts such as shift solenoid, TPS, etc. but it the scan seems to stop short of the RPM line. Per the index of the PDF it seems that Section 3 has the drivetrain information but that section isn't scanned (or I haven't found the right download).

So, does anyone know or can point me towards the RPM pin going into the TCU?

Many thanks.

It's in section 3-2 troubleshooting.

The rpm signal is on the TCU connector B44, pin 5. It goes to connector B56, pin 16 on the ECU.

That the info you need?

Josh, that is exactly what I needed. Thank you!


I still can't find section 3-2 in my PDF files though. Am I being an idiot and overlooking it? I have two main PDF files - 1992 Subaru Legacy Fuel Injection & Wiring Section.pdf and 1992_Subaru_Service_Manual-Engine_&_Wiring.pdf

Am I missing a file? The info you gave will work just fine but I'd like to have/know where the page is for my reference.

Thank you again Josh. You've been an incredible help through this build.

Unfortunately, the info I gave is not in those scans.

I can try and scan that info some time this weekend. Remind me if I forget.