Can ga-run-tee that it the transmission is locked in Park and displays a block when the ignition is on and the engine starts, there is a code, probably a P0720 (assuming you have a NAG-1).


ps if you use a real Merc scanner, there will probably be a number of C102X codes stored.


Would also expect that if you use a rod to get out of park
- the shift into gear will be hard
- it will not shift out of 1st.