OK. Here's something for you to speculate about.
On a UK/Euro/Aussie SVX, if you ground pin a4 of the TCU, it enables "Economy Mode", a different shift map designed for those of us who have to pay upwards of $5 a gallon.
On a JDM SVX, if you ground pin a4, it enables "Power Mode", we all know how much fun that can be
Pin a4 is not connected on a USA SVX, but what would happen if it were? Would it activate "Power Mode", is there a secret "Economy Mode" lurking in your TCU that Subaru never implemented? Would it just do nothing?
What do you think?
__________________
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