Its near the firewall, almost on the top of the tranny. It sticks straight up and has one wire harness plugged into it. You'll have to take the intake pipe off to get to it, and probably to see it even, which isnt too hard to do.

aero3685- try resetting the ECU... if you still have the CEL but the speedo is working, that is probably it... the ECU is part of controlling the cruise.