remote won't work after 2 runs.

when i turn on power on vehcle, vehcle function as normal, sterling and throutle moves a little bit(normal), but after that when i turn on remote, it doesn't move again(should move a little bit again), whatever i turn sterling or throutle or brake,it doesn't move, fresh battery doesn't help. the power of the remote will on,and indicator on,just function doesn't work, please help!!!!

which is broken?

sry for my english