General Description

The BCM controls chime requests based upon several inputs to the BCM. The functions which cause the audible warning to be activated by the BCM are listed below:
^ Key-in ignition
^ Headlamps on with ignition off
^ Seatbelt not fastened
^ Park brake engaged with vehicle speed The BCM sends a class 2 message to the radio when a chime is requested. The radio receives the class 2 message and emits the chime through the radio speakers. Chime functions will be inoperative under the following conditions:
^ A loss of class 2 serial data has occurred.
^ The factory radio has been replaced with an aftermarket unit.