Water damage short help!

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exptech

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May 29, 2026
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2021 Expedition .
Wifey spilled 10 gallons of drinking water. It went down both sides of the vehicle. Caused Immediate failure and shut down the vehicle.
Got it towed home cleaned up and dried.
Pulled carpets...
Vehicle will not start without without messing with the headlight switch on/off
Also kills from moving headlight switch.
There was some codes I cleared something about the pcm not communicating with the ecm tons of short to ground failures and I cannot find it any damaged wires.
Attached photo has some of the test results that come up the most after a dtc reset.
Vehicle is stuck it park and will not shift
 

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