My etacs doesn't work right now, things that don't work: Adjustable speed on wipers (the second 2 will still work, it's the one you can adjust by turning the knob that won't work), power door locks, sunroof (if you have one), power seatbelts with the ignition off, radio, key reminder, factory alarm (if you have one), dome and door lights. there may be more I'm not remembering right now... but those are the ones I can think of