central locking

Hi guys, as the title says my central locking in my almera does not work, I know it used to have working central locking as the owners manual talks about central locking. How can I diagnose the issue? I'm guessing there's a cable or something in the drivers and passenger doorcard? As my car is...

Hello I have an almera 1999 (guess its SR N15) and I have a remote for door opening but it doesnt open or close the doors. The remote is giving out signal very weakly (even though the battery is brand new) so my question is where is the reciever located in the car? That way I can test it at...