One problem related to wiring has been reported for the 1997 Mercury Grand Marquis. The most recently reported issues are listed below.
This regards a 1997 Mercury Grand Marquis, and a safety related issue that cannot be repaired by the car dealership. The driver side automatic/passive door lock, will not allow the driver side door to open at all. In the case of an emergency, there would no way to escape the vehicle. The Ford/Mercury dealership could not fix/repair the vehicle, and sent it back unrepaired. The driver's door is locked - and cannot be opened with the key, switch or remote control. They state that they have never seen this before, and the Mercury national customer service, that I called today, stated that this has never been recorded in their database.