I have a PCM2.1 and usually the speedometer digital display shows the Radio station I listen to or the Navigation directions. This afternoon after starting the car, the only display available is "----". The digital speedo still works, and the mpg is indicated, but the radio station or navi signal doesn't show. It's as if the signal from the PCM is not feeding to the instrument display.

I'd like to avoid a trip to the dealer if this can be reset quit easily.

Any thoughts?