Wrangler Went SWIMMING? (Battery Not Charging & Oil Pressure WARNING?)

This low-mile decked out 2010 Jeep Wrangler left the owner stranded... Apparently the owner drove her Jeep through some DEEP water...repeatedly?? Shop says they tried 2 reman alternators and it's still NOT CHARGING the battery. Also the OIL PRESSURE WARNING light comes on for no apparent reason... They cleaned out water from a few of the bulk connectors, but that did not help. Let's see if we can get to the bottom of these issues and recommend a repair. 2023 LAUNCH X431 PRO3S+ (Upgraded ThinkTool PROS): https://www.amazon.com/dp/B092894STV?... ASTRO DC AMP CLAMP: https://www.amazon.com/dp/B08MTCMWLB?... TEST LIGHT: https://www.amazon.com/dp/B000M5ZWBA?... Enjoy! Ivan