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:

• Accessory Power Delay Relay Control  - The CCN provides operating control of the accessory power delay relay.
• 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, including chime tones and beep tones. An electromechanical relay is also soldered onto the circuit board to produce audible clicks that emulate the sound of a conventional turn signal or hazard warning flasher.
• 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 multiplexed hard-wired inputs from the headlamp switch on the instrument panel as well as electronic headlamp dimmer switch status  and turn signal switch status  messages from the Steering Control Module (SCM) integral to the multi-function switch on the left side of 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.
• Heated Seat Actuation Signal  - Where used, the CCN controls the heated seat system request input by transferring the request across the bus to the Heated Seat Module.
• Horn Switch Support  - On clusters equipped with a EVIC display, the CCN receives electronic horn switch status  messages from the Steering Control Module (SCM) integral to the multi-function switch on the left side of the steering column over the LIN data bus and transmits the appropriate electronic horn request  messages over the CAN data bus to support the horn function. On instrument clusters that are non EVIC equipped, the horn switch is hard-wired to the CCN and the CCN will transmit the messages over the LIN data bus.
• 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 hardwired inputs from the headlamp switch, the reading lamp switches, the Wireless Ignition Node (WIN) 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 module, the Heated Seat Module (HSM), the instrument panel switch pod, the Steering Wheel Switch Module (SWSM) and the SCM, then either acts on that information directly or places electronic messages on the CAN data bus for use by other electronic modules.
• Panel Lamps Dimming Control  - The CCN monitors multiplexed hard-wired inputs from the panel lamps dimmer switch thumbwheel in the headlamp switch, 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.
• Remote Radio Switch Interface  - On clusters equipped with a EVIC display, the CCN monitors electronic message inputs from the optional remote radio switches over the LIN data bus, then provides the appropriate electronic data bus messages to the radio to select the radio or optional hands-free cellular system operating mode, volume control, preset station scan and station seek features. On instrument clusters that are non EVIC equipped, the remote radio switches are hard-wired directly to the CCN and the CCN will transmit the messages over the LIN data bus.
• UConnect™ Hands-Free Voice Actuated Communication System Actuation Signal  - Where used, the CCN controls the UConnect™ system actuation signals.
• Vehicle Theft Security System Control  - The CCN monitors inputs across the BUS to provide electronic horn  and lighting request  signals to the TIPM for the appropriate VTSS alarm output features.
• Wiper and Washer Switch Support  - The CCN monitors electronic wiper switch  and washer switch status  messages from the SCM integral to the multi-function switch on the left side of 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.