I have a 2002 suzuki aerio sx 4-door. The doors will not unlock with the key remote but will lock sometimes with it. I have tried a differant key remote and still no luck. If I use the key on the door it will lock or unlock 1 or all the doors and hatch like normal. The way the doors work is when I use the Key on the lock it lets me unlock 1 or all the doors by turning the key once or twice How do I troble shoot this problem?