Have an F20D with aTemp light that comes on the moment I turn on the key and remains on till I shut it off. Wanted to try to figure out what the problem is but I'm at a loss as how to access the instrument cluster. there are two screws on top that I thought would be the key, but no luck initally and I didn't want to force again and cause more problems. Can post more picutres of the dash area if necessary. Also what might the problem be as far as the light is concerned?