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Home >> Chrysler >> 2010 >> Sebring Convertible V6-2.7L >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Audible Warning Device >> Description and Operation >> Chime/Buzzer - Operation

Chime/Buzzer - Operation






OPERATION

The chime warning system operates on battery voltage received through a fuse in the Junction Block (JB) on a non-switched fused B(+) circuit so that the system may operate regardless of the ignition switch position. The chime warning system also monitors the ignition switch position so that some chime features are functional only with the ignition switch in the On position, while others are functional regardless of the ignition switch position.

The chime warning system provides an audible indication to the vehicle operator or occupants under the following conditions:

- Airbag Indicator Warning - The Cab Compartment Node (CCN) will generate one short chime when the ignition switch is in the On position, and an electronic message is received over the Controller Area Network (CAN) data bus from the Occupant Restraint Controller (ORC) requesting "Airbag" indicator illumination. This warning will only occur following completion of the "Airbag" indicator bulb test, and will only occur once during any ignition cycle.
- Door Ajar Indicator Warning - The CCN will generate one short chime when the ignition switch is in the On position, a hard wired input is received indicating that the status of any door ajar switch has changed, and an electronic message is received over the CAN data bus indicating that the vehicle is moving. Door ajar chime occurs only if the door ajar status is true.

- Door opened and
- Ignition in RUN position and
- Vehicle speed is present
- Fasten Seat Belt Indicator Warning - The CCN will generate repetitive chimes at a slow rate to announce that a hard wired input from the seat belt switch indicates that the driver side front seat belt is not fastened with the ignition switch in the On position. The chime warning system also supports the enhanced seat belt reminder (beltminder) when this feature is enabled.

There are two different Fasten Seatbelt Reminder announcements incorporated into the cluster's logic, a Non-enhanced announcement and an Enhanced announcement.

When the Enhanced announcement is DISABLED:

- The cluster will chime five times (not greater than six seconds) and illuminate the Seatbelt Lamp after turning the ignition to the run/start position if the driver/passenger seatbelt is unbuckled.

When the Enhanced announcement is ENABLED;

- The cluster will chime continuously at a slow rate for a period of 6 seconds and illuminate the Seatbelt Lamp after turning the ignition to the run/start position if the driver/passenger seatbelt is unbuckled. After 6 seconds the chime will stop, but the Seatbelt Lamp will stay illuminated. If the ignition is in the run position for a period greater than 60 seconds, and the driver/passenger seatbelt is unbuckled, and the vehicle's speed is greater than 5 mph (8 km/h) in a forward gear, the Enhanced Fasten Seatbelt Reminder will activate. This will cause the Seatbelt Lamp to blink and a slow continuous chime to sound for 5 seconds. After 5 seconds, the chime will stop, but the lamp will remain illuminated for an additional 3 seconds. The Enhanced Seatbelt Reminder cycles for a total of 12 times (96 seconds). After the 12th time, the Seatbelt Lamp will remain on without any chime. Buckling the driver/passenger seatbelt at anytime will cancel the Fasten Seatbelt Reminder announcement.

The seatbelt indicator includes a programmable enhanced seatbelt reminder or "beltminder" feature that is enabled when the vehicle is shipped from the factory. This beltminder feature can be disabled and enabled by the customer using a specific programming event sequence, or by the dealer using a diagnostic scan tool.

- Decklid Ajar Indicator Warning - The CCN will generate one short chime when the ignition switch is in the On position, a hard wired input is received indicating that the status of the decklid ajar switch has changed (switch position has to change to true), and an electronic message is received over the CAN data bus indicating that the vehicle is moving.
- Head/Park Lamps-On Warning - The CCN will generate repetitive chimes at a fast rate to indicate that hard wired inputs from the driver door ajar switch, the headlamp switch, and the ignition switch indicate that the exterior lamps are turned On with the driver side front door opened and the ignition switch in the Off position. The chimes will continue to sound until the exterior lamps are turned Off, the driver side front door is closed, or the ignition switch is turned to the On position, whichever occurs first.
- Key-In-Ignition Warning - The CCN will generate repetitive chimes at a fast rate to indicate that hard wired inputs from the driver door ajar switch, the ignition switch, and the key-in ignition switch circuitry of the ignition switch indicate that the key is in the ignition in the lock position with the driver side front door open and the ignition switch in the Off position. The chimes will continue to sound until the key is removed from the ignition lock cylinder, the driver side front door is closed, or the ignition switch is turned to the On position, whichever occurs first.
- Low Fuel Indicator Warning - The CCN will generate one short chime when the low fuel indicator is illuminated by the instrument cluster circuitry. This chime will only occur once during any ignition cycle.
- Park Brake Reminder - The CCN will generate one short chime to announce that the hard wired input from the park brake switch and a vehicle speed message input received over the CAN data bus indicate that the park brake is applied and the vehicle is moving. This chime will repeat each time the input conditions are met.
- Sentry Key "Customer Learn" Mode Announcement - The CCN will generate one short chime to confirm that an electronic "Customer Learn" mode message has been received over the CAN data bus to indicate that the Sentry Key Remote Entry Module (SKREEM) is prepared for programming additional sentry key transponders. This chime feature is only active on vehicles equipped with the optional Sentry Key system, and sold in a market where "Customer Learn" programming is an allowed feature.
- Turn Signal/Hazard Warning Flasher Emulation - The CCN relay will generate repetitive clicks at a slow rate to emulate an electromechanical flasher when the turn signal or hazard warning system are operating. The CCN relay will generate repetitive clicks at a fast rate to indicate that the right or left turn signal are operating with one or more bulbs inoperative. In either case, the clicks will continue until the turn signal and hazard warning systems are turned off.
- Turn Signal On Warning - The CCN will generate repetitive chimes at a slow rate to indicate that a turn signal has been active continuously for 1.6 kilometers (1 mile) with the vehicle speed greater than 22 kilometers-per-hour (15 miles-per hour). Vehicles built for markets other than the United States and Canada have a revised distance threshold of 4 kilometers for this feature. The chime will continue until the turn signal input becomes inactive or until the vehicle speed message indicates that the speed is less than 22 kilometers-per-hour (15 miles-per-hour), whichever occurs first. The hazard warning flashers will not activate this chime feature.
- Warning Indicator Announcement - The CCN will generate one short chime each time the Malfunction Indicator or MIL lamp is illuminated by the instrument cluster circuitry. The check gauges indicator may be illuminated when any critical engine or transmission systems are operating outside of their normal parameters. The instrument cluster monitors electronic messages received over the CAN data bus to determine when to illuminate the check gauges indicator.

The CCN provides chime service for all available features in the chime warning system. The CCN relies upon its internal programming, numerous hard wired inputs, and electronic message inputs received from other modules over the CAN data bus network to provide the chime warning system features. The internal programming of the CCN determines the priority of each chime request input that is received, as well as the rate and duration of each chime that is to be generated.

The hard wired chime warning system inputs to the CCN may be diagnosed and tested using conventional diagnostic tools and procedures. However, conventional diagnostic methods may not prove conclusive in the diagnosis of the CCN, the CAN data bus, or the electronic messages received by the CCN from other modules. The most reliable, efficient and accurate means to diagnose the CCN, the CAN/LIN data bus, or the electronic message inputs used for the chime warning system requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

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