Hello, I have a 2003 Liberty Sport 4x4 and the cruise does not work properly as does the speedo. The speedo bounces around until the brake is applied a few times then steadies out, at the wrong speed reading. The cruise is probably not working because of this erratic behaviour.
The Mopar dealer has gone through the wiring, supposedly and the problem was fixed for about 2 days then went right back to being erratic. I am thinking that the brake light switch might be at fault or the electrics to the cruise from the ECM or PCM. Everything else works fine and the car drives and shifts perfectly, so I am not suspecting the speed sensors.
Any suggestions? The wire pinched at the brake line is not an issue here.