Mazda 3 Service Manual: Car Navigation System
Outline
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The car-navigation system displays point-of-origin and road guidance maps via the audio unit display and provides guidance and information to the desired point of destination.
NOTE:
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For the car-navigation system operation, refer to the owner's manual.
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A TomTom car-navigation unit has been adopted.
Function
Navigation function
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Calculates route to destination, and provides guidance using the settings made by the user.
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The navigation system is a hybrid-type system which combines independent navigation and satellite navigation to provide highly accurate detection of the current position based on specialized map matching which identifies the current position by comparing the map information data read from the navigation map data on the SD card with the current position measured by the independent navigation and satellite navigation systems.
Map matching
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Map matching compares the road configurations of the map information data stored in the SD based on the current position information measured from independent navigation and satellite navigation, and corrects the current position to the most suitable map information data on the route.
Guidance
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Display guidance
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The remaining distance to destination, branch points, and road names are indicated on the display.
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Voice guidance
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Voice guidance is provided for destination, distance to branch point and heading. The voice guidance is output from the speakers equipped on the vehicle.
Structural view
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The car-navigation system consists of the car-navigation unit, audio unit, GPS antenna, microphone, and speakers.
Block diagram
Operation
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Reads the SD card map data inserted into the car-navigation unit and sends the read data to the audio unit.
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When the audio unit NAV switch is pressed, the system switches to NAVI mode and the navigation screen is displayed in the audio unit display.
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The car-navigation unit is a hybrid-type system which combines independent navigation with satellite navigation, calculates position information and route and arrival time to the destination, and displays it in the audio unit display.
NOTE:
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For details on the car-navigation system, refer to the owner's manual.
Navigation
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Car Navigation Unit
Purpose
Reads the SD card data inserted into the car-navigation unit and sends the
read data to the audio unit.
Function
The car-navigation unit has the following functions:
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Other materials:
Fog Lights
Use this switch to turn on the fog lights.
The fog lights will improve visibility at
night and during foggy conditions.
To turn the fog lights on, rotate the fog
light switch to the position.
The headlight switch must be in the
position before turning on the fog lights.
To turn t ...
Glass Antenna
Purpose, Function
4SD
The AM/FM radio waves and RDS-TMC (Radio Data System-Traffic Message Channel)
radio waves are converted to an electrical signal and the signal is sent to
the audio unit.
5HB (With audio unit (with display))
The RDS-TCM (Radio Data System-Traffic Mes ...
Immobilizer System
The immobilizer system allows the
engine to start only with a key the system
recognizes.
If someone attempts to start the engine
with an unrecognized key, the engine
will not start, thereby helping to prevent
vehicle theft.
If you have a problem with the
immobilizer system or the key, co ...
