Part 3
Navigation System Description
Dynamic Route Guidance
The audio-navigation unit can calculate different routes to a selected destination. You have five options:
- Direct Route-Calculate a route that is the most direct.
- Easy Route-Calculate a route that minimizes the number of turns needed.
- Minimize Freeways-Calculate a route that avoids freeway travel. If that is not possible, keep the amount of freeway travel to a minimum. This is not selectable (button grayed out) for trips greater than 100 miles.
- Minimize Toll Roads-Calculate a route that avoids, or minimizes travel on toll roads. This is not selectable (button grayed out) for trips greater than 100 miles.
- Maximize Freeways-Calculate a route that uses freeways as much as possible.
Audio Guidance
The audio-navigation unit transmits audio driving instructions before entering an intersection or passing a junction. The audio instructions come through the stereo amplifier to the front speakers.
NOTE: The front speakers are muted whenever the navigation system is giving guidance commands, and all of the speakers when the voice control system is being used.
Muting Signal Logic
The audio muting logic is orchestrated by the audio-navigation unit. The audio-navigation unit determines what audio source has priority to use the speakers.
The priority of the audio sources is as follows:
HFL has the highest priority, followed by navigation, and finally the radio/CD-DVD player. The priority is passed by HFL to the audio-navigation unit by dedicated mute wires. The navigation mute signal is passed to the stereo amplifier.
The audio-navigation unit temporarily disables the voice control buttons, but allows guidance to be heard. In addition, the audio-navigation unit suppresses the output from the audio system, the XM receiver, the disc player, or other audio accessories.
When the navigation system sends out a voice route guidance command, the audio front speaker is muted, and the navigation voice is heard in the front speakers.
When the navigation voice control system is in use, all of the speakers are muted, and the navigation voice prompts are heard from the front speakers.
Solar Angle
The climate control unit uses the sun's angle, along with the sunlight sensor to control the driver/passenger A/C air flow.
Off Road Tracking (bread-crumbs)
Off road tracking dots that can be followed on the map retrace your route back to a mapped (digitized) road.
Clock and Time Zone
The clock set up allows you to set daylight savings time, auto time zone and time adjustment.
Control Interface
Navigation Display Unit
The display unit uses a liquid crystal display (LCD). The LCD is a 8-inch diagonal, thin film transistor (TFT), strip type with 336,960 picture elements. The color film and fluorescent light are laid out on the back of the liquid crystal film.
TALK Button
Activates the voice control system in the audio-navigation unit to accept voice commands.
NOTE: If the navigation volume and/or voice feedback is turned off, this feature is disabled.
BACK Button
Returns the display to the previous screen (similar function as the CANCEL button).
PICK-UP Button
This button is used to answer incoming calls or to make outgoing calls. You can also go directly to the Cellular Phone screen by pressing this button.
HANG-UP Button
This button is used to end a call.
Audio Remote, HFL-Navigation Voice Control Switch
The navigation voice control switch is combined with the audio remote switch and the HFL switch. Navigation TALK/BACK commands are sent to the audio-navigation unit via the HandsFreeLink control unit.
Audio-Navigation and HVAC Switch Panel
- The navigation hard buttons and interface dial are used to input commands.
- The display mode button switches the display between Day mode, Night mode, and off.
NOTE: When you activate this button, the navigation auto dimming is turned off until you turn the ignition switch to LOCK (0) or press the engine start/stop button to select OFF mode.
- The audio button displays the audio system information.
Front HFL-Navigation-ANC/Active Sound Control Microphone
Receives voice commands and transmits them to the audio-navigation unit or the HandsFreeLink control unit. The microphone unit consist of two microphones. One microphone is combined with the front ANC/active sound control microphone. The microphones detects the driver's voice and passenger's voice separately.
Glossary
The following is a glossary of terms pertaining to the navigation system.
NOTE: All items may not apply to this vehicle. See the Navigation Manual for more information.
Diagnostic System Diagram
This diagram below shows all of the navigation diagnostic features available for system troubleshooting. The diagram starts at the center, and works outward in layers.
Access to the diagnostic features begins by starting the vehicle. This is necessary so the system can check the other systems connected by various busses. After starting the vehicle you can enter the diagnostic mode either by pressing and holding the MENU, the MAP/GUIDE, and the CANCEL buttons, or by connecting the 2-PIN SCS service connector.
The main menu screen allows 2 checking modes - one automatic, and one manual:
- The automatic diagnostic check starts when you select SELF DIAGNOSTIC MODE. The system runs for several seconds, and reports any issues with Red icons. Rotate the interface dial and select the icon you wish obtain the problem details.
- The manual diagnostic check is selected from the main menu by selecting DETAIL INFORMATION AND SETTING. The traditional diagnostic menu is displayed. This allows you to obtain additional details as instructed in the troubleshooting procedures.
NOTE: Do not clear or change settings unless specified by either the troubleshooting procedures or by the factory.
Navigation Unit Connector for Inputs and Outputs
NOTE:
- Refer to the audio system section for the connectors C, E, and F inputs and outputs.
- The connector with the asterisk (*) mark is a lever-lock type.
AUDIO-NAVIGATION UNIT CONNECTOR A (24P)
NOTE: Refer to the audio system section for the terminals inputs and outputs not shown.
