I have a m320 that will not let me drive. Parking light says the brakes is on when it's not. Boom and everything else works it just will not drive .
Any reason to suspect that the pedal isn't fully up? Like excess dirt, pedal shaft corrosion? What about the oscillating axle lever? Travel lockout switch enabled?
I will look at it. It dose not act like the brake is on it the light stays on and it would take drive. We can push it all day long.
The first thing to look at is the pressure switch for pilot prerssure located on the small valveblock with the travel speed solenboids, if you stand on the steps behind the cab facing the engine it is down by your right knee. Unscrew the connector and jump the 2 terminals and I'll bet you'll get travel function back.