Have you tested the internal lock in the middle of the air vents? Does this work, yes or no. If it does not work, you have a wiring issue, or your FRM module needs a software reset. If it does work but the remote does not work then its a wiring issue from the drivers door. Does the trunk open yes or no? Does the car lock via the remote, does it lock via the central button. if the car locks but the trunk remains unlocked then you need to have CAS checked, or could be the RF antenna. you need ISTA to check the modules, and you need a multi meter to check continuity in your drivers door wiring. All these things need to be checked. So many variables, hard to help if these things haven't been tried out first.