Where is the shift solenoid SL and SLU ON 2011 Camry

Question

2011 Camry loses reverse every now and then there codes are po741 which is that TCC solenoid shift solenoid valve SL I'm also getting the code p2757 TCC pressure solenoid which is so annoyed valve SLU where are both solenoids located? thank you in advance for any help that you may be able to assist me with.