It took days of testing and tracing the wiring. After the wire to the right front passenger door was disconnected, we thought the problem was resolved. Must now manually lock and unlock that door, a minor inconvenience. Fortunately the battery was replaced under warranty. The problem has now reoccurred and no other source of the problem has been determined. The only solution now is to place a disconnect knob on the battery and use it when parking the car for a short extended time. UGH!!