The left front Parking light and turn signal will not turn off?

2008 CHEVROLET SILVERADO
200,000 MILES • 4.8L • V8 • 2WD
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JBK76
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The left front Parking light and turn signal will not turn off. Started after radiator tank blew out and saturated the fuse box. I pulled box and board looks pretty bad. Everything else works fine. Thank you.
Jun 13, 2023 at 10:14 AM
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STRAILER
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This lighting system is controlled by the BCM which is powered by fuses in the under-hood fuse panel. I would check fuses using this guide also I have included the running light wiring diagrams so you can see how the system works and which fuses to check. If all fuses are okay check the ground circuit of the left front bulb.

These guides can help us fix the problem:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/no-tail-lights-exterior-running-lights-tail-lights-out

If everything is okay, I would replace the BCM, you can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on. I have included the location of the BCM and how to change it out.
Jun 14, 2023 at 11:11 AM
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JBK76
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Thanks for the info. All fuses are good and couldn't find a bad ground. I opened the fuse panel under the hood and I'll upload an image.
Jun 15, 2023 at 8:27 PM
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STRAILER
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Yep, that does not look good, was the car under water? I would replace the board and check the amin battery ground to the engine block and the chassis, thanks for the image, it helps.
Jun 16, 2023 at 7:33 AM
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JBK76
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Thanks, that's what I was thinking. Actually the tank blew on radiator and got all in fuse panel.
Jun 16, 2023 at 9:32 AM
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STRAILER
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Yep, that will do it. Please let me know what happens after the BCM replacement.
Jun 17, 2023 at 9:29 AM
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JBK76
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Will do.
Jun 17, 2023 at 3:35 PM