I have a recently acquired 1999 Grand Voyager and the outside temperature reads 0 at all times.
Can someone please tell me where the sensor is located so that I can trace the wires back, or maybe replace the sensor. I reckon it was disturbed whilst the LPG system was fitted.
I'm not familiar with the particular vehicle, but have a look at the bottom of the wing mirror casings. If there's a little hole in one of them it'll be in there. Common location - usually in the driver side mirror.