The navigation system contains the following components:

The export navigation system contains the following additional components:

The operator interfaces with the radio system through the buttons and control knobs located on the Infotainment Faceplate Control Module or faceplate. The operator is able to control system power, volume, fade, balance, bass, and treble equalizations. When the operator turns a knob or pushes a button, a module in the faceplate sends a signal to the radio on a UART - based bus called CAN Graphical Interface (CGI). The CGI bus circuit is part of a wiring harness that connects the faceplate and radio.

This component acts as the operator interface for the navigation system, provides the data input from the operator to the navigation system and provides navigation information to the operator via the display screen. The navigation radio is located in the center of the instrument panel behind the faceplate. The navigation radio provides the following:

Battery power is supplied to the Color Display Module through a 15-amp RADIO fuse located in the Rear BEC.

When the navigation radio is on, a discrete 12 volt signal is supplied on the remote enable circuit to the Color Display Module. This signal is used to control the power state of the module, which is now in the active state. The radio sets the appropriate DTC when a fault is detected on the circuit.

The radio communicates with the Color Display Module over the CAN Graphical Interface (CGI) serial data circuit. The CGI circuit is a UART - based serial data interface used to transfer messages and high rate display graphics.

When the Color Display Module is in the active state, the radio needs to determine if the module is communicating properly. The radio initiates the message to the module and waits for a proper status response message back from the module. If after 30 communication attempts without a proper response, the radio holds down the reset circuit to the module in an attempt to reset the module. The radio sets the appropriate DTC when communication is lost.

The Color Display Module attaches to the Display Module Actuator. Battery power is supplied to the actuator through a 10-amp NAV MOTOR fuse located in the UHBEC. The ground circuit for the actuator is attached to G305.

When the navigation radio is on, a discrete 12 volt signal is supplied on the remote enable circuit to the Display Module Actuator. This signal is used to control the power state of the actuator, which is now in the active state. The radio sets the appropriate DTC when communication is lost.

Pressing the NAV button, located on the Infotainment Faceplate Control Module or faceplate, sends a 5 volt signal on the Popup Position Control circuit to the Display Module Actuator. The 5 volt signal sets the position of the Display Module Actuator commanding the display to the Up position. Pressing the NAV button again removes the signal on the circuit commanding the display to the Down position.

When the display is commanded to the Up position, the motor controller, located in the actuator, sends a 5 volt signal on the Popup Position circuit to the radio. The circuit is a hard wired input from the motor controller to the radio. This signal is read by the radio in order to know which graphics to render on the touch-screen display. The radio will set the appropriate DTC when this circuit is open, shorted to ground or battery.

A remote 3.5 mm auxiliary stereo jack and USB connector allows playback of audio signals from remote devices (e.g., laptop computer, IPOD, MP3 player, etc.). The Aux jack is a five wire connector interface. The USB is a four wire plus shield USB cable interface. The USB connector uses the USB standards, 1.1 and 2.0. This type of connector supports rates for low speed (1.5 Mb/s), full speed (12 Mb/s), and high speed (480 Mb/s). The remote Aux jack/USB adapter is located in the rear console bin.

The radio detects the presence or absence of an audio mini-plug through the AuxJackDetect input. When the audio mini-plug is inserted in the Aux Detect Switch the mechanical switch closes. When removed the switch is open.

The global positioning system (GPS) locates the current position of the vehicle using signals sent by GPS satellites. The GPS antenna is attached to the instrument panel (I/P) carrier and can be accessed by removing the I/P retainer. The GPS antenna is powered through the same coaxial cable used to send the signals to the navigation radio. Interference to the system may occur if any of the following exist:

These several antennas are conductive traces placed on the inside of the rear window glass.

The TV antenna module is located under the rear window shelf. The TV antenna module is used by the navigation radio to automatically select the antenna combination that provides the strongest TV signal to the navigation radio. The TV antenna module also provides the vehicle information communication system (VICS) FM signal to the VICS module.

The TV antenna amplifier is mounted behind the trim on 1 side of the rear window. The TV antenna amplifier is powered by the TV antenna module through the same coaxial cable used to carry their signals to the TV antenna module. They are attached to the 4 TV antenna trace patterns in the rear window glass.

The vehicle information communication system (VICS) module, an export only dealer-installed option, uses signals from the optical/microwave beacon antenna and the rear glass VICS antenna via the TV antenna module to convey routing information to the navigation radio. The navigation radio either revises planned routing or relays the VICS information to the operator through the screen of the navigation radio and the voice guidance system.

The vehicle information communication system (VICS) optical beacon antenna is a dealer-installed option. The antenna, which is mounted on the right side of the instrument panel, picks up signals through the front window glass. A coaxial cable carries the power to and signals from this antenna to the navigation radio.

Important: This function is for view files on disk only. The navigation radio cannot get external files from the World-Wide Web or other sources other than an inserted disk.

The navigation radio will allow HTML files to be displayed. The files will only be able to be accessed and viewed. No user input is capable.

To plan a route a destination must be set. There are various types of destinations available, as listed above. Pressing "Calc" once the destination has been entered will plan the route. To start the route guidance start driving the vehicle. The route guidance will begin automatically after a short distance.

The beam function allows data to be sent by a PALM hand held computing device directly into the navigation system. The IR port for the beam function is located in the upper right corner of the navigation radio.

The Navigation Systems voice recognition allows for hands-free operation of navigation and audio system features. The voice recognition can be used when the ignition is in accessory or ON, or when retained accessory power (RAP) is active. This feature only works if the map DVD is inserted and the AGREE button has been pressed. The memory seats can also be able to be set and selected using the voice recognition feature. For a complete list of available commands, refer to the Owners Manual Navigation Supplement and/or Personalization in the Owners manual.