I drive a 2005 2.4L Dodge Caravan with 327,688 miles on the odometer. I've had the Caravan since 2007 and it runs great! However, yesterday I was driving home from a friends house and about a mile from home all the idiot lights in the dashboard came on, at the same time the speedometer started showing 120mph (I was doing about 45mph). Next the idiot lights went out and the speedometer dropped back to 45mph, then it did it again! All the while my Caravan ran just fine. Right after the second round of shenanigan I arrived home.

FWIW, right after I arrived home I hooked up my code scanner but there were no codes reported.

I'm hoping someone on the board here might know what is going on with my idiot lights and speedometer.

Steve