central locking

[wanneroo]

MY EF Fairmont has had erratic central locking /it unlocks and locks several times its been doing this for a couple of weeks
Today I found the power rear window lock depressed, I never use this function I unlocked it and my central locking has come good, I have tried remote and key access it works all the time now, could this have been a conflict in the BCM? got me guessing, anyone out there have any idea ? sounds a little weird to me