What could the problem be with the tachometer it quit working on 2001 Chrysler TC?

Answer:
A wire going to the battery broke off, when it was reconnected the gauges and lights on the gauges start working again, however the speedometer and the tachometer did not operate.
First answer by TimmyBub. Last edit by TimmyBub. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].