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Welcome to the Forum!
Lots of great members and helpful info in the C4 sections at https://www.corvetteforum.com/forums...-1984-1996-19/.
They will be able to help you better, but the control module should be the small black box mounted in the driver's side wheel well - headlight well. It will probably say “Guide” on it; but I'm sure current owners will be of much more assistance. You may also check to see if there are any You Tube videos showing removing and repairing this module.
Best wishes with your fix!