Erratic speedo, fuel gauge & temp gauge on nissan micra (W reg)?

The speedo, fuel gauge & Temp gauge are working erratically on my W reg (May 2000) nissan micra celebration. When parked the speedo will jump up and then back to zero. When driving it is at zero most times but jumps up then back to zero. Sometimes works ok. Fuel gauge shows zero then correct fuel level then zero. Temp gauge similar but occasionally goes to max then drops to min. I believe that it is an electronic speedo.