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Q: Checked grounds, fuses, now what?

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Replaced ECM 1 yr a ago after flash flood, Suddenly Experiencing ABS light on / Air Bag light on / erratic speedometer/ shifting is altered., what the heck. Should I be looking towards the WSS sense the ECM has been changes already!
My car has an automatic transmission.

You should have the codes scanned to see what codes are stored. You may just have a bad sensor like a speed sensor. When a vehicle is flooded, they may not have a problem after being dried out, but problems after time can start due to corrosion on all the connections that may have gotten soaked. The electrical connections on a car are designed to repel water and not be water proof. I recommend having an expert inspect your car to diagnose your warning lights and make the correct repair.

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