Audible Warning Device: Description and Operation

CIRCUIT OPERATION
The key-in chime is used to indicate to the operator that the key is in the ignition with the drivers door OPEN. If the key is in the ignition and the drivers door is OPEN, a ground path is completed from the G26 circuit at the cluster, through the CLOSED key-in switch, to the G16 circuit and terminating at the door ajar switch which is case grounded.