03 rx1 mountains gauge issues

[Fish-Fry]

So I went to start my sled the other day to go fishing and noticed the gauge wasn’t working right, it comes on then goes off. Tach does not work will sit at 0 then up too 2.5rpm if I hit the gas it glitches back off. When the tach comes on so does the rest of the gauge can control hand and thumb warmers, then it will start glitching out and #*$&@ off and come back on. Throttle will kill it automatically, have checked the wiring harness down by the nose cone and under the bar pad. Have also cleaned grounds and contacts. Any ideas would be great thanks.