New C2 owner. 13 with 92k. Great vehicle, very happy with it. No ambient temp reading. Just two dashes. - - degrees F, sensor at left front grill looks fine. Any ideas? Thanks.
Unplug it, check wires and connections. If the car's been in an accident, something may be broken. You should be able to get a resistance reading on that sensor. If it's open or shorted, it's bad, no matter how good it looks. Good Luck....