Key In Ignition Switch Input

The BCM interfaces with the ignition key alarm switch. The ignition key alarm switch grounds circuit 80 when the key is fully inserted in the ignition switch. The switch opens when the key is removed from the ignition switch. The BCM uses this input for the operation of the key in ignition reminder, lockout prevention, exit lighting, among other BCM-related features. The ignition key alarm switch receives ground through circuit 1550.