Audible Warning Device Control Module: Description and Operation

The chime module sounds an audible warning tone. The tone sounds for seat belt warning and when the key is in the ignition switch while the drivers door is open. The tone also sounds when the ignition key is in the ON position while the drivers side seat belt is not buckled. Lastly, the tone sounds when the head- lamps are ON when the ignition is OFF.

When the ignition switch is in the RUN position, circuit A2 from fuse 13 in the Power Distribution Center (PDC) connects to circuit A22. Circuit A22 powers circuit F83 through fuse 19 in the fuse block. Circuit F83 connects to the chime module.

Circuit A4 in the PDC powers circuit F60 through fuse 8 in the fuse block. Circuit F60 supplies battery voltage to the chime module. Circuits A4 and F60 are HOT at all times. Circuit Z1 provides ground for the chime module.

One branch of circuit G26 connects the chime module to the headlamp switch. Another branch of circuit G26 connects the chime module to the ignition key-in switch. Circuit G16 connects the key in switch to the headlamp switch and left front door jamb switch. When the parking lamps or headlamps are ON, the headlamp switch connects circuit G26 from the chime module to circuit G16.

If the headlamps are ON and the drivers door opens, ground for the chime module is through the headlamp switch on circuit G26. From the headlamp switch the ground path continues on circuit G16 through the drivers door jamb switch to ground on circuit Z1.

If the headlamps are OFF with the key in the ignition while the drivers side door is open, ground for the chime module is through the key-in switch on circuit G26. From the key-in, the ground path continues on circuit G16 through the drivers door jamb switch to ground on circuit Z1.

Circuit G13 from the chime module powers the seat belt warning lamp in the instrument cluster. Circuit Z1 at the instrument cluster provides ground for the lamp.

Circuit G1O from the chime module connects to the seat belt switch. When the seat belt switch closes a path to ground is completed on circuit Z1 and the tone sounds momentarily.

The chime module connects to the Vehicle Information Center (VIC) on circuit G81.