Greetings to the house pls admin help ma approve dis...I use a 2005 corolla..ever since I changed the complete shaft my car develop this issue ....when its cool ,like maybe packed from night till morning it moves fine for lik15km after which it becomes hard to move u will have to turtle it well before it moves slowly and at this point it doesn't change gear it just stuck at the first gear...but the reverse works perfectly well ...please I need urgent response.....this is the diagnosis

New transmission loading...

Wahala. The mechanic most likely pushed dirt into the transmission via the shaft. Address the P0500 first. Check all the speed sensors in the tyre. Vehicle speed sensor is usually the one that sits on the transmission just under the batter seat in Camry. Don't know if it's same for Corolla. Google P0500 for Corolla. That may be the solution to your problem.