Message Center - Service Information: Overview Dodge Avenger II facelift

Scheme 168

The Electronic Vehicle Information Center (EVIC) features a driver-interactive display (31). The display is located in the lower left part of the instrument cluster below the engine temperature (1) and fuel (2) gauges.

The display in the lower right part of the instrument cluster (19) below the tachometer (17) shows the vehicle odometer related functions. These functions include Trip Odometer (ODO), Trip A and Trip B readouts. The instrument cluster push button (21) can be used to scroll through the different odometer functions. for additional information on the instrument cluster and related functions. Refer to DESCRIPTION.

Scheme 169

The EVIC system conveniently allows the driver to navigate through and select a variety of useful information by pressing the EVIC function buttons located on the steering wheel. The EVIC displays information related to the following

1. System Status
2. Vehicle information warning message displays
3. Tire Pressure Monitor System (TPM) - If Equipped
4. Personal Settings (customer programmable features)
5. Compass display
6. Outside temperature display
7. Trip computer functions
8. UConnect™ hands-free communication system displays - If Equipped
9. Navigation system screens - If Equipped
10. Audio mode display

The EVIC system is comprised of several different components. Those components are

1. Instrument Cluster, also known as Cab Compartment Node (CCN)
2. Steering Wheel Function Buttons
3. Ambient Temperature Sensor
4. Remote Compass Module (RCM)
5. Controller Area Network (CAN) Data Bus
6. Local Interface Network (LIN) Data Bus

The EVIC display is part of the Instrument Cluster assembly and is not serviced as a separate component. If the display is inoperative the complete Instrument Cluster assembly must be replaced. Refer to REMOVAL.

OPERATION

The Electronic Vehicle Information Center (EVIC) uses both non-switched and ignition switched sources of battery current so that some of its features remain operational at any time, while others may only operate with the ignition switch in the "ON" position. When the ignition switch is turned to the "ON" position, the EVIC display will return to the last function being displayed before the ignition was turned to the "OFF" position.

The EVIC system is comprised of several different components that communicate over the Controller Area Network (CAN) and Local Interface Network (LIN) Data Buses. If the system is inoperative a scan tool and the appropriate diagnostic information must be used to diagnose the system.

The EVIC function buttons are used to operate the different functions of the EVIC system. Pressing and releasing the MENU button (1) allows the driver to select the Compass/Temperature, Trip Computer, Personal Settings or System Status functions. The STEP button (4) is used to toggle through options or features of the Trip Computer, Personal Settings or System Status functions. Pressing and releasing the RESET button (3) allows the selection of setting or resetting of the function currently displayed at that time. Pressing and releasing the C/T (compass/temperature) button (5) will cause the EVIC to return to the compass/temperature display mode from any other mode.

The ambient temperature sensor is a variable resistor that operates on a five-volt reference signal. The resistance in the sensor changes as the temperature changes, changing the temperature sensor signal circuit voltage input to the Totally Integrated Power Module (TIPM). The TIPM reads the sensor input, then sends the appropriate electronic ambient temp sensor messages to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) over the Controller Area Network (CAN) data bus. The EMIC then displays the appropriate temperature information an electronic display unit.

The ambient temperature sensor as well as the hard wired inputs and outputs of the sensor may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic controls and communication that provide some features of the ambient temperature display. The most reliable, efficient and accurate means to diagnose the electronic controls and communication related to ambient temperature display operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

The Electronic Vehicle Information Center (EVIC) control switch pod is a resistor multiplexed unit that receives source current from and provides hard wired inputs to the Local Interface Network (LIN) slave node integral to the speed control switch pod in the right spoke of the steering wheel spoke bezel. The LIN slave node communicates the switch states of the EVIC control switch pod, the remote radio switches and the horn switch over the LIN data bus to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN), which is the LIN master node.

The EVIC control switch pod (also known as the odometer switch) for vehicles not equipped with the EVIC system contains two switch push buttons whose functions are

1. Reset - This switch button allows the operator to reset the trip odometer (A or B) currently displayed in the odometer display unit of the instrument cluster.
2. Step - This switch button allows the operator to step through the total odometer, trip odometer A and trip odometer B display options of the odometer display of the instrument cluster.

The EVIC control switch pod for vehicles equipped with the EVIC system contains four switch push buttons whose functions are

1. Menu - This switch button allows the operator to view the available EVIC menu items, including Compass/Temperature, Trip Computer, Navigation (if equipped), Personal Settings (also known as customer programmable features) or System Status.
2. Select / Reset - This switch button allows the operator to select or reset the feature or function currently displayed in the EVIC.
3. Compass - This switch button provides instant access to the compass/temperature EVIC display mode from any other mode.
4. Step / Scroll Down - This switch button allows the operator to step or scroll down through options or features of the Trip Computer, Personal Settings or System Status functions.

For vehicles equipped with the Uconnect™ Hands-Free Communication System, the EVIC control switch pod contains two additional switch push buttons whose functions are

1. VR (Voice Recognition) - This switch button activates the Uconnect™ Voice Command system.
2. Phone - This switch push button activates the Uconnect™ Hands-Free Phone system.

The EMIC LIN master node provides a clean ground and fused B(+) current for all of the switches and sensors on the rotating steering wheel through the LIN slave node circuitry of the speed control switch pod as well as for the Light Emitting Diode (LED) back lighting of both the speed control and the EVIC switch pods. The EMIC continually monitors the LIN bus data and will store a Signal Not Available (SNA) code for any LIN bus input errors. The EMIC also communicates with other electronic modules over the Controller Area Network (CAN) data bus. Therefore, any EMIC DTC information can be retrieved using a diagnostic scan tool connected to the Data Link Connector (DLC).

The analog resistor multiplexed circuits of the EVIC control switch pod as well as the hard wired circuits between the switch pod and the LIN slave node within the speed control switch pod may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the LIN slave or master nodes, the EMIC or the electronic controls and communication between modules and other devices that provide some features of the EVIC system. The most reliable, efficient, and accurate means to diagnose the EVIC control switch pod, the LIN slave or master nodes, the EMIC or the electronic controls and communication related to EVIC system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

See also:
• STANDARD PROCEDURE