So, driver side key lock was not working. After i fixed it and was happy with being able to lock unlock the car manually from the handle, i found out the remote suddenly stopped working. Was working perfectly before and tried different keys. Central locking using the key at the handle and using the switch on the dash works fine. Checked supply at the roof module and it has 12v on both wires and even tried a spare module but it wouldn't work. Finally I tried to disconnect the battery for a few minutes and that did nothing either. What is happening????