Hi Mike. can you tell me if the drivers side locks and unlocks when you use the remote? I suggest it probably doesn't, If that's the case then you have a fault with the locking motor/solenoid on the drivers door. If you were to use the key in the drivers door to lock the vehicle, do all the other doors lock OK as well? Again if they do then the fault is the drivers door because you are mechanically moving the motor/ solenoid with the key. What the lock unlock is telling you is it thinks there is a door open and will not lock because of that signal. Lock the car from the passenger side with the key and watch the drivers door inner lock handle, if the drivers door is faulty it will not move the inner handle drivers door side. Hope that makes sense!!
Paul
February 2008