Key switch, luggage compartment disarm

The key switch is located by the luggage compartment lock and is grounded through contact with the body. The switch is powered by a pulse width modulated (approx. 3.5%) voltage via a 1 k/ohm pull-up in TWICE. When the key is turned in the lock, the switch will close and ground the control module input. The luggage compartment is then disarmed.