Electrical problem 01 Grand Caravan

I just had battery checked. No problem. Gauges and dash lights acting very weird. Able to reset by dis-connecting Neg terminal, but ends up repeating the probelms a little later. Also, one of the relay switches in
the fuse box next to battery makes a lot of clicking. Checked 10D fuse, not blown. Also when the relay switch makes the clicking, there is also a clicking sound coming from around the cam. Any thoughts or leads would be most appriciative.
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