If the car rolls, then it's not likely the cable. But I think your inhibitor switch could be bad.
Or I could be on the wrong track completely.
The cable goes from the bottom of the shift lever, where it sticks through the bottom of the car, to the right side of the tranny case. It's not easily accessible, since the lever end of the cable is above the tranny. The switch may only be accessible by removing the exhaust, I'm not sure.
In this picture you can just see where the shift lever sticks through the floor:
http://www.subaru-svx.net/photos/fil...ckets/9048.jpg
So it's right over the driveshaft.
And this one shows the two types of inhibitor switches. The one on the right is from my car's original tranny and the one on the left is from a much newer rebuilt unit:
http://www.subaru-svx.net/photos/fil...ckets/9053.jpg
And, lastly, here you can see the older inhibitor switch on the new tranny (I was missing the wire harness for the newer one at the time). It's just above the oil pan:
http://www.subaru-svx.net/photos/fil...ckets/9044.jpg
If your car thinks it's still in a mode you don't have selected, I can't think of anything else that would cause the condition. Of course, it could be the switch's wiring.
If anybody else has any other ideas, by all means speak up.
