01 Familia Sport 20 central locking issue
 

Hi, I'm hoping somebody can provide some information, I recently bought an 01 Familia Sport 20 for my son as his first car, there was an issue with the rear passenger door actuator making a noise, which we have fixed by fitting another actuator, however, there was also a problem with the central locking which we thought may have been linked to this actuator problem. Having fixed the actuator the other problem still exists, when the drivers door is unlocked using the key all of the doors will unlock, however, when the drivers door is locked using the key only the drivers door locks, this means we have to manually lock all the doors before getting out of the car. I have removed the latch and actuator mechanism and made sure the internal gear drive is not broken (like the rear). I have checked the continuity switches at the plug when the lock / unlock mechanism is moved and it does. Not sure where to go now ? any help would be much appreciated.