OK. REMOVE THE DOOR COVER, AND CHECK THE WIRING TO THE CENTRAL LOCKING MOTOR. CLEAN CONECTORS IF POSSIBLE TO REMOVE ANY CORROSION. IF THE PROBLEM IS STILL THERE YOU MAY NEED TO REOVE THE MOTOR AND REPLACE. MAY BE ABLE TO GET A REPLACEMENT FROM A BREAKERS. SOMETIME THE MOTOR COULD BE STUCK IN WHICH CASE TRY SOME OIL. HOPE THIS HELPS
JASON
October 2006