Central Locking

I have done an extensive search and cant find any answers to my problem

Basically I changed the passenger door a few months ago and all was well for a week. Then that door would not open with the central locking. I had to use the key to open it.

I left it until this weekend as its not used very much, but I had some time and decided to check if a link bar had come off.

All I did was remove the card and visually inspect everything.

I then went to the drivers door (I have been using the key for ages since the fobs holder broke and its a pain to carry 2 parts around) and locked the car (Passenger door open) and all locked ok except the passenger door as I expected.

Then when I turned the key to open the doors only to drivers door opened. The central locking stopped altogether.

I checked the fuse under the steering wheel, and looked in the fusebox near the battery but the fuses are ok.

Now the Alarm used to activate on the door lock, but that not working either.

Is there an alarm fuse I cant find?

Any other ideas.

Now I am down to basic old fashioned individual door locks.

Thanks in advance for looking.

passenger door is controlled by drivers door lock system.

Hope this helps....

First is it a disco 1 or 2............. If is a 2 then any problems with a door lock requires a replacement they are not repairable.

Its a Disco 1, sorry.

Thanks for the Mr Mad Hat Man, I'll print that out and take it home for another look tonight.