Method for determining spurious contacts on a contact detection sensor for a handle of an automobile door, the sensor defining a locking area and being connected to an onboard electronic locking and unlocking system, includes: a) detecting a contact on the locking area when, for an engagement time of the locking mechanism, the number of charge transfers from the sensor is less than a threshold number of charge transfers, b) evaluating the number of charge transfers, starting from the time of the minimum value of the number of measured charge transfers and for an evaluation time in order to distinguish detections of contacts made by the user from detections of spurious contacts, c) if the contact detections are spurious, matching the threshold number of charge transfers in order to be able to detect any next contact originating from the user on the locking area in the presence of spurious contacts.