I just read and wrote this SRS Unit from a Volvo S80 with Iprog+.
It is P30798509 with Motorola 9S12XDT256.
Everything worked fine, but I had to lift Reset pin.
I read both Eеprom and Flash without any problems!
This are the both Eeproms,with crash and cleared!
I read it with this adapter for Iprog+. When you choose to read MC9S12XDT256 from the menu, there is pinout! Only one different, that you need to lift RESET pin.
I connect only
Gnd
+5v
Reset
BKGD