Re: Memory dump of ECU
The TCU and A/C unit are sending back data, which shows that they received the command OK. But the data coming back is garbled. That's what we call "the 92 problem" and it's usually fixable with some extra circuitry.
But your problem is more serious because the ECU is not receiving the command. We don't have a fix for that.
The fact that none of the three modules are working correctly makes me think it's a problem with the SSM signal wires rather than a faulty unit. As it seems to be both directions, maybe the ground wire (pin 9). You could check for resistance between this wire and ground.
Probably the first thing to try is to find a Subaru dealer with a Select Monitor tool. If the Subaru tool works then ask Longassname about his cable, which is copied from the Select Monitor circuitry.
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Subaru ECU and TCU Website
1992 Alcyone SVX Version L
1992 Alcyone SVX Version L
1994 Alcyone SVX S40-II
2004 Subaru Legacy 2.5 SE Sports Tourer
1996 Subaru Legacy 2.2 GX Wagon
1988 Subaru Justy J12 SL-II
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