407 Left Front Door lock problem

Hello. My vehicle is 2006 model 1.6 hdi comfort package The sensor of the left front door lock of the vehicle does not work. I took it to the locker and wanted to repair it, but they cut the sensor cable before or there is a damage to the cable. Have a look at the locker installation. The solution would be easier if it was in the installation at the door, if it was on the other side of the brain, I would make a connection through the back door. I would like to get ideas from experienced people. How should I look for a solution? An important problem when the door is the door in the driver's quarters. Because when I try to open the doors from the remote with frequent repetitions, it doesn't work. Thank you in advance.

Hello. If the operation has been done before, a universal lock motor may be installed because the lock motor is defective. It is necessary to look at a good electrician who knows peugeot. As you say driver's door is important.