Rep Power: 0

The instruments in my '04 Civic have started behaving erratically. From time to time while driving the speedo and tach will deflect full scale for a few seconds and return to normal. When this happens the PRNDL indicator switches to P. I haven't been able to take my eyes off the road long enough to determine what other aspects of the cluster are doing, but I think there is more abnormal stuff going on. It seems pretty obvious that there is a connection problem somewhere, and I'm thinking it is most likely a ground problem. I'm hoping someone has seen this problem before and can point me in the direction of the solution.

 
Rep Power: 228

Perhsps, check for signs of rodents in the engine bay.

 
Rep Power: 366

tell me about!
After several months since i tried to start me civic and it shorted... Dawn that months i am stuck after my hip surgery.... The critters had a good nest in there, i bet...

 
Rep Power: 366

other than that...
electronics goes crazy when voltage is not consistent.
Check battery and alternator.

pretty famous issues in the 7th gen civics, but i guess with more and more electronics in cars, this is getting further more important.