Itchy

Hi guys. Just registered here. So central locking work just from switch inside car and NOT using key in fob. So now... I found that rear gate actuator doesnt work and problem was about 7 wires in right rubber cover was cut. So I soldered them and now iam only able to unlock (when pushing lever on actuator to lock) from inside switch but not lock from it. Any ideas ? Should i search for broken cables from drivers door to car ? Or it coudl be bad BIU ? Thanks for any help.