Entire Instrument Cluster Flashing - Gauges Spastic

[particlewave]

I'm not saying 100% that the connectors are the issue, but since you didn't mention anything else electrical, that's where I'd start.

The connectors are notorious for causing cluster issues, usually after having removed the cluster for some reason, though it is still the first thing I'd check.
Remove two screws and it pops right out, so it shouldn't take more than 5 minutes. You could also just have a cluster or ignition switch problem.


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[rexcramer]

After the cluster plugs, I would like to suggest that you check voltage while off and running with a multi-meter and report those numbers.

[Seadweller]

Originally Posted by rexcramer

After the cluster plugs, I would like to suggest that you check voltage while off and running with a multi-meter and report those numbers.

Where's the best spot to check voltage?

The car has run/operated perfectly normal since the battery replacement, so this just came up out of the blue, which would lead me away from the battery. I would assume (I know, always dangerous) that if there was sufficient voltage to start the car, it should be enough to power the cluster.

[Seadweller]

Originally Posted by particlewave

You could also just have a cluster or ignition switch problem.

The ignition switch was my first thought.