1roadrunner

hi :) i have a 2002 ford galaxy with a central locking problem. when i press the lock botton on the key it locks all doors bar the drivers door ,and when i press the unlock botton they all unlock and the drivers door locks. i have also notcied that the little red led light on the drivers door dose not light or flash as it did before this problem which all started a week ago. i can lock the drivers door with the key in the lock and unlock it but it dose not lock or unlock any other door is this normal any help or pointers on this problem would be great