Jagilya

Hi, everyone, I read some info/advices here about other models, but I'm not sure how alike those symptoms with my car. There was a little accident where my car bumped into a stupid guy who crossed 2 lanes by going perpedicular to us, so I was able to stop the car, but it did him because of the car's inertia. So, there was a little bump. After that, everything was fine, but when I stopped the car at my home and then started again in the morning, I had the CEL on. After that, it's been a week & I still have it. I dont think it's a gas cap, I think 2-3 clicks are enough, even though ppl here said to make 6-7 The car goes just fine at 90mph. I'm gonna bring it for diagnostics in 3 days only (they R busy at dealerships), the code was PO743 - "transmission related"... Anyone had any experience with this before in such situation? Any advices for me - what else to check rather then clicking the gas cap 7 times? Thanx!!