08 4.7 break booster

Hi,need help my vsc light blinking skid light on. This is a royal pain in the ass. One garage told me to get a new transfer a case. Keep in mind everything in the truck is working perfectly. It’s driving well except for the lights after a $200 diagnosis by the dealer, he said, because of corrosion in one of the plugs connectors, the long one on the booster probably causing problems. I cannot find on any forum the name of those two plugs the plug into the front of the booster. Why ? now for the best part, the dealership gave me an estimate of $11,000 replace total harness and booster stopped listening at that point. anybody have any thoughts about this issue.

 

Why not pull codes?? Take it to Autozone or similar and have them look through your codes. Odds are it may be a wheel bearing or needs a zero point calibration. Doubt its a brake booster.