My ford edge has an unusual issue. It first happened about 3 months ago, was at the neighborhood store, came out to the car, and when I turned the ignition, I lost all power. No door locks, no dash/headlights, nothing. Went home, brought another car up, and the second I hooked up the jumper cables, the headlights turned on, and then the car started.
Ran / started fine for the past 90 or so days. Yesterday, the same thing happened, but in my driveway. This time however, the jump doesnt work. I disconnected the battery, cleaned the terminals, and when I re-connect the battery, the lights turn on. I can turn the key to the first position and the dash lights, and radio all work. But if I continue and turn the key to start, everything goes dead again, and i need to disconnect/reconnect the battery to get the dash lights/etc to come back on. The only icon that is on when the power is completely dead, is the little security lock in the lower left corner- it flashes about every 3 secs. Not sure if that's the culprit, or if it's something else. I tried both keys I have for the car. Both have the same effect, - turn the car to start and lose all power?
Any ideas, or has anyone seen this behavior before?
Thanks in advance