Your question is not about Jesus鈥 ability to sin, but about his conscious knowledge: 鈥淲as Jesus aware that he could not sin?鈥 Your answer, 鈥淵es, he knows that he could not sin,鈥 does not actually address the question. The question was not whether Jesus knew that he could not sin, but whether he was aware that he could not sin.
God鈥檚 control of the future is first revealed when Daniel 1:2 states that 鈥渢he Lord delivered Jehoiakim king of Judah into his [Nebuchadnezzar鈥檚] power.鈥