Does not recognize either of my chip keys. Guages not working. Engine will crank

What is your question?

Disconnecting battery negative for 1 to 2 hours will allow the key to be recognized and engine will start and run fine. Turn off engine and the key is not recognized again. Guages are off again. This is a repeatable sequence. When running there is not any DTC codes registered. Tried changing battery. Looked for bad connections at ECM and SKIM module. All looks fine.

What makes this problem better or worse?

doesn't matter

How long has your 2003 Jeep Grand Cherokee had this problem?

a week