Vehicle Systems Support

Besides typical instrument cluster gauge and indicator support, the electronic functions and features that the CCN supports or controls include the following:

• Audible Warnings  - The CCN electronic circuit board is equipped with an audible tone transducer and programming that allows it to provide various audible alerts to the vehicle operator. These alerts include single chime tones and continuous slow or fast tones. An electromechanical relay is also soldered onto the circuit board to produce audible clicks that are used to emulate the sound of a conventional turn signal or hazard warning flasher.
• Compass/Temperature Display Support  - The CCN provides support for each of the functions and features of the compass/temperature display, as well as for the odometer push button switch, which also provides user inputs to control the compass/temperature display options.
• Electronic Vehicle Information Center Display Support  - The CCN provides support for each of the functions and features of the Electronic Vehicle Information Center (EVIC) display. This includes support for the compass, thermometer and audio system mode, customer programmable features, textual warnings, premium Tire Pressure Monitor (TPM), trip computer, U-Connect™ Hands-Free communication and the switch inputs from the two EVIC rocker switches located on the front surface of the steering wheel spokes that are used to control and configure many of the displays. This also includes display arbitrator programming, which controls the priorities, sequences, and transition of information that is displayed in the EVIC display, particularly when multiple display requests are received simultaneously.
• Enhanced Accident Response Support  - The CCN monitors inputs from the Occupant Restraint Controller (ORC) and the Powertrain Control Module (PCM) to automatically turn ON the interior lighting after an airbag deployment event, 10 seconds after the vehicle speed is zero. The interior lighting remains illuminated until the key is removed from the ignition switch lock cylinder, at which time the interior lighting returns to normal operation and control. These Enhanced Accident Response System (EARS) features are each dependent upon a functional vehicle electrical system following the vehicle impact event.
• Exterior Lighting Switch Support  - The CCN monitors electronic exterior lighting switch  , and turn signal switch status  messages from the Steering Control Module (SCM) on the steering column over the LIN data bus and transmits the appropriate electronic exterior lighting  and turn signal request  messages to the Totally Integrated Power Module (TIPM) over the CAN data bus to support the exterior lighting functions.
• Horn Switch Support  - On vehicles without the optional EVIC, the CCN receives a hard wired input from the horn switch on the steering wheel. On vehicles with the optional EVIC, the CCN receives electronic horn switch status  messages from the Steering Wheel Switch Module (SWSM) over the LIN bus. In either case, the CCN then provides electronic horn request  messages over the CAN data bus to support the horn function.
• Interior Lamp Load Shedding  - The CCN provides a battery saver feature which will automatically turn OFF all interior lamps if they remain ON after a timed interval of about ten minutes.
• Interior Lighting Control  - The CCN monitors electronic messages and hard wired inputs from the reading lamp switches, the Sentry Key REmote Entry Module (SKREEM) (also known as the Wireless Control Module/WCM), the Steering Control Module (SCM) and the Totally Integrated Power Module (TIPM) to provide courtesy lamp control. This includes support for timed illuminated entry with theater-style fade-to-OFF and courtesy illumination DEFEAT features.
• Local Interface Network Master Module  - The CCN is the master module for the LIN data bus. In this role it gathers information from the compass sensor, the Heated Seat Module (HSM), the instrument panel switch pod, the Steering Wheel Switch Module (SWSM), the SCM and the remote compass module, then either acts on that information directly or places electronic messages on the CAN data bus for use by other modules
• Panel Lamps Dimming Control  - The CCN monitors electronic dimming level  messages received from the panel lamps dimmer switch input to the SCM over the LIN data bus, then provides both a hard wired 12-volt Pulse-Width Modulated (PWM) output and electronic message outputs over the CAN data bus and the LIN data bus that synchronizes the dimming level of all panel lamps dimmer controlled lamps with that of the cluster general illumination lighting.
• Wiper and Washer Switch Support  - The CCN monitors electronic wiper switch  and washer switch status  messages from the SCM on the steering column over the LIN data bus and transmits the appropriate electronic wiper  and washer request  messages to the TIPM over the CAN data bus to support the wiper and washer system functions, including the headlamps-on with wipers programmable feature.