sensor ACURA CSX 2006 Service Repair Manual

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Navigation Unit
Calculation of Vehicle Position
Map Matching Tuning
GPS Tuning
Distance Tuning
Route Guidance
Audio Guidance
DVD-ROM
23-285
The navigation unit calculates the vehicle position and guides you to the destination. The unit performs map matching
correction, GPS correction, and distance tuning. It also controls the menu functions and the DVD-ROM drive, and
interprets voice commands. With control of all these items, the navigation unit makes the navigation picture signal,
then it transmits the signal to the navigation display and audio driving instructions to the audio unit.
The navigation unit calculates the vehicle position (the driving direction and the current position) by receiving the
directional change signals from the yaw rate sensor and the travel distance signals from the PCMs vehicle speed pulse
(VSP) signal.
The map matching tuning is accomplished by indicating the vehicle position on the roads on the map. The map data
transmitted from the DVD-ROM is checked against the vehicle position data, and the vehicle position is indicated on
the nearest road. Map matching tuning does not occur when the vehicle travels on a road not shown on the map, or
when the vehicle position is far away from a road on the map.
The GPS tuning is accomplished by indicating the vehicle position as the GPS’s vehicle position. The navigation unit
compares its calculated vehicle position data with the GPS vehicle position data. If there is large difference between
the two, the indicated vehicle position is adjusted to the GPS vehicle position.
The distance tuning reduces the difference between the travel distance signal from the VSP and the distance data on
the map. The navigation unit compares its calculated vehicle position data with the GPS vehicle position data. The
navigation unit then decreases the tuning value when the vehicle position is always ahead of the GPS vehicle position,
and it increases the tuning value when the vehicle position is always behind the GPS vehicle position.
The 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 am ount of
freeway travel to a minimum.
 Minimize Toll Roads Calculate a route that avoids, or minimizes travel on toll roads.
 Maximize Freeways Calculate a route that uses freeways as much as possible.
The navigation unit transmits audio driving instructions before entering an intersection or passing a junction.
The audio instructions come through the audio unit to the front speakers.
NOTE: The front speakers are muted whenever the navigation system is giving guidance commands, and all of the
speakers are muted when the voice control system is being used.
The map data (including all scale rates) is stored in the DVD-ROM. The map data includes:  Road distances, road widths, speed limits, traffic regulations, passing time at junction, distances to junctions, and the driving instructions for audio guidance.
 Latitude and longitude GPS.
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Î
ÎAudio Unit (Built in the navigation unit)
Navigation Display
Microphone
Navigation TALK Button
Navigation BACK Button
23-286
Navigation System
System Description (cont’d)
NAVIGATION TALK BUTTON
NAVIGATION BACK BUTTON
The audio unit receives the audio driving instructions from the navigation unit, and transmits the instructions through
the front speakers even when the audio system is in use.
The navigation display uses liquid crystal display (LCD). The LCD is a 6.5-inch-diagonal, thin film transistor (TFT),
stripe type with 65,536 color. The color film and fluorescent light are laid out on the back of the liquid crystal film. The
touch sensor on the front of the LCD consists of a touch sensitive resistive membrane with an infinite number of
possible touch locations.
The microphone (on the ceiling, near the front map light) receives voice commands and transmits them to the
navigation unit for interpretation.
Activates the voice control system in the navigation unit to accept voice commands.
Returns the display to the previous screen (similar function as the CANCEL button).
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•
Glossary
Item Definition
23-287
The following is a glossary of terms pertaining to the Voice Recognition Navigation System.Active noise cancellation
(ANC) The active noise cancellation system cancels some of the vehicle noise. This occurs in the 1,500 2,400 rpm
range. Microphones detect the low frequency sound, and the system outputs a canceling sound from the
audio speaker.
Address Book The HFL system can import a copy of the phone book from and approved HFL compatible phone and display the imported phone book on the navigation screen as the address book. See the Owner’s Manual for more
information.
B-CAN Body CAN Bus (see CAN)
Bread-crumbs (White dots) Off road tracking dots that can be followed on the map to retrace your route back to a mapped (digitized) road. This function can be turned on/off in Setup screen 1.
CAN Controller Area Network. This communication network allows processors in the vehicle to send/receive information. The fuel pulses used by the MID trip computer are received from the ECM/PCM using the F-CAN
(Fast Controller Area Network) bus.
CPU Central Processing Unit. The main device within the navigation unit that coordinates the rest of the electronic functions.
CSS Countershaft (Output) Speed Sensor. This sensor reads the output shaft speed at the transmission and provides a speed pulse to the ECM/PCM.
Database This consists of the Map data, and the POI (Points Of Interest) data stored on the DVD.
DBW Drive By Wire. Allows electrical control of the throttle without the need of a mechanical linkage.
DCA Detailed Coverage Area. Main metropolitan areas in the Lower 48 states, and Canada are mapped to this level. See the navigation system manual for a list of these areas.
DTC Diagnostic Trouble Codes. Use the HDS tablet to obtain, and troubleshoot the cause of these codes.
Dead reckoning The use of the speed signal, and yaw rate sensor to position the vehicle on the map even when tall buildings, or driving in a tunnel obscures the GPS signal.
Digitized road A road that appears on the navigation screen. The road name appears at the bottom of the navigation screen. If the user drives off road, the navigation system displays not on a digitized road, and after 1/2 mile, the
bread-crumbs appear.
Disclaimer screen Screen containing cautionary information. It is meant to be read carefully, and acknowledged by the customer when using the navigation system.
DVD or DVD-ROM Digital Versatile Disk. The navigation program and database resides on this disk. See the Navigation Owner’s Manual for information on how to order a replacement or an update DVD.
ECM Engine Control Module. Typically referred to as the ECM.
FAQ Frequently Asked Questions. See the navigation system manual for a list of the customer FAQs, and troubleshooting information.
F-CAN Fast CAN Bus (see CAN)
GA-NET The GA-NET allows the audio unit to communicate with all the audio and navigation components in a vehicle. If there is an open in the GA-NET, components or the entire audio and navigation system may
appear inoperative.
GPS Global Positioning System. A network of 24 satellites in orbit around the earth. The navigation system can simultaneously receive signals from up to 12 satellites to accurately position the vehicle on the map.
HDS Honda Diagnostic System. A hand held tablet PC used for diagnosing vehicle problems. This device can be used to obtain DTC codes for diagnosis of the navigation system and CAN related problems.
HFL HandsFreeLink uses Bluetooth technology as a wireless link between it and an approved Bluetooth compatible cell phone. See Vehicle Owner’s manual or Quick Start Guide for more information.
HIP (AcuraLink) Honda Information Platform (see AcuraLink)
H/U Head Unit. The audio unit in the dash.
Initialization This refers to the period needed to re-acquire the GPS satellite orbital information whenever the navigation system power has been disconnected. This can take from 10 to 45 minutes.
Interface Dial This control device consists of a rotating knob and the buttons surrounding it. This device allows control of the navigation, audio, and climate functions displayed on the screen.
Jog Dial See interface dial.
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ItemDefinition
23-288Navigation System
System Description (cont’d)
LCD
Liquid Crystal Display (the navigation screen)
Map matching The received GPS information allows the navigation system to position the vehicle on the map. MAP
matching has occurred if the map screen displays the current street name in the bottom-shaded area.
Mic Abbreviation for the microphone used for receiving voice commands. It is located near the map light in the
ceiling. The ANC circuit may also use it to check its tuning.
MID Multi-Information Display
MW Maneuver Window. While on route to a destination, this window displays information about the next
maneuver.
Navi Abbreviation for the Navigation System.
Off-road tracking See bread-crumbs.
Off route This occurs when the user leaves mapped roads. Off road tracking dots (bread-crumbs) are displayed If the
option is enables in the setup menu. The user can use them to return to a mapped road. The bottom of the
navigation screen displays not on a digitized road.
Outlying areas These are rural areas that typically have only their main roads mapped. All other roads are shown in light
brown for reference only, since the have not been verified.
Paired Linking your call phone to the HFL.
PC Card Slot The PC Card (PCMCIA, type II) slot is for factory use only. Make sure that the sliding door is closed at all
times, if opened, an error message is displayed on the screen.
PCM Powertrain Control Module. This unit supplies the navigation system speed signal, also refered to as PCM.
PCMCIA A computer industry defined term referring to the PC Card slot standard.
PIN Personal Identification Number, a random 4 digit number created by the customer to protect personal
information.
POI Point Of Interest. These are the businesses, schools, etc. found under the places option on the main menu.
Polygon Colored areas on the map screen denoting parks, schools, etc. See the Navigation System Manual Driving to
Your Destination for a list of the assigned colors.
QWERTY Keyboard layout resembling the typewriter keys. The keyboard layout can be changed to an alphabetical
layout in the Setup mode.
SCS connector The service check signal 2-pin connector used to put the navigation system into the diagnostic mode.
Security code Code needed to activate the navigation system. You can get the security code from the in by entering the
navigation unit serial number. You can find the serial number on the diagnostic screens (unit check, Navi
ECU), or on the underside of the navigation unit.
Tuning A continual update of internal navigation system scaling factors. See the individual sensor tuning
discussions under either System Description, or System Diagnosis Mode (see page 23-297).
Unverified streets These streets have not been verified for turn restrictions, one-way, etc. They appear light brown on the map.
You can enter address destinations in these areas, but depending on your Unverified. Routing choice in
setup, voice guidance may end at the last verified street closest to your destination.
USB Universal Serial Bus. The USB is used for playing the compressed audio files (MP3, WMA, and AAC) on the
external device through the audio unit.
Verified streets These streets consist of the detailed metropolitan coverage areas, and other inter-town connection roads.
These roads are shown in black or red on the map. (interstates are red)
VP Vehicle Position. When in map mode, this circular icon shows the vehicle position on the map.
VR Voice Recognition. This allows voice control of many of the navigation functions. The hardware consists of
the microphone, voice control switch (navigation TALK/BACK buttons), and the center speaker. See the
overview for more information.
VSP Vehicle Speed Pulse. This pulse signal coming from the PCM (VIA the CSS) is used to update the Vehicle
position on the map. These pulses do not indicate direction (forward or backward). When in reverse, the
navigation receives a signal and directs the VP to move backwards on the map.
XM This device receives information from the XM satellites and passes XM audio information to the audio unit.
In addition, traffic information is sent to the navigation unit.
Yaw sensor This device is located in the navigation system control unit and senses the side-to-side twisting force
generated when the vehicle turns. See a detailed description of how this sensor works in system description.
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Start-up procedure and Diagnostic Menu System Links
23-297
System Diagnostic Mode
Return System LinksHelp
Exit Diag
ReturnReturn
Navi.ECUSelect Diagnosis Items Self- Diagnosis Mode
Detail Information & Setting
(Navi will check internal function. connections, etc.
Perform this test with vehicle stopped and engine running.)
(Individual Diagnostic screens to confirma specific diagnostic screen.)
XM
Error
History
Yaw
Sensor Car Status
ECU Info. Hard Key
DVD Mic
HFL
Press any icon if you want to see details. GPS Ant. R. Camera
Display Radio
A/C
Start the vehicle, and at the disclaimer screen use the
navigation display hard buttons as described below:
Make sure the battery is in good condition, then press
and hold the three buttons MAP/GUIDE, MENU, and
CANCEL, for about 3 seconds. The display screen goes
directly to the Select Diagnosis Items menu shown
below.
 Self-Diagnosis Mode (runs the automatic diagnosis of the navigation system)
 Detail Information & Setting (allows you to manually diagnose the navigation system) 1. By selecting Self-Diagnosis Mode from the
navigation screen main menu. The message at the
bottom of the screen flashes indicating the
diagnostic is running. Make sure you enter the
audio anti-theft code.
NOTE: The system cannot complete a full diagnosis unless the engine is running.
 DTC 2703 can be stored when the ignition switch is at ACCESSORY (I). With the ignition switch is
in ACCESSORY (I), the climate control unit is
turned off and the navigation unit loses
communication and stores DTCs. Therefore,
there is a possibility that the system is normal
even DTC 2703 is stored. Check system links with
the engine running, and if it shows normal, the
system is OK at this time.
2. Select the icon you want to diagnose. Push in the select the icon to see the details of that diagnostic
function.
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••••••
•••
••• •••
••• ••• ••• •••
•••
••• ••• ••• •••
Icon Icon Color
GREEN RED YELLOW WHITE GRAY
23-300Navigation System
System Diagnostic Mode (cont’d)
Mic
The microphone
detects the
sound ‘‘Pi-Pi-
Pon’’ at the
system link
menu. The microphone
could not detects
the sound ‘‘Pi-Pi-
Pon’’ at the
system link
menu. Executing (Not
completed)
ECU Info. Both V-RAM or D-RAM is OK,
and all Program
Flash, Serial No.,
Model is
available, and
the DVD lid is
closed.Either the
V-RAM or D-
RAM is NG, or
any of the
Program Flash,
Serial No.,
Model is
unavailable.DVD lid is
opened
Executing (Not
completed)
Hard Key All buttons are pressed and are
detected under
Hard key menu.All buttons are
not pressed or
pressed but not
detected under
Hard key menu,
or exit from Hard
key menu
without the
button not
detected. Until changing to
Hard key menu.
Error History Hard Error or
Soft Error is
detected under
Error History
menu. Executing (Not
completed)
Hard Error or
Soft Error is not
detected under
Error History
menu.
DVD DVD mechanism
is normal and
the proper DVD
is installed. Improper DVD is
installed, or DVD
is not installed,
or can not
identify software
version from the
DVD or internal
mechanism
failure.Executing (Not
completed)
Yaw Sensor Result of the Yaw Sensor
diagnosis menu
is OK.Result of the
Yaw Sensor
diagnosis menu
is NG.Result of the
Zero Point
Output under the
Yaw Sensor
diagnosis menu
is NO CHECK.Executing (Not
completed)
Car Status Check these
systems
manually.
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Black Raster
Touch Panel Check 1Touch Panel Calibration
23-303
Black RasterReturn
Return
Return
SetX:0 Y:0
X:227 Y:111
X:479 Y:2331
2
3 4
5
Please press the center of’’ ’’button.
This diagnostic screen checks for pixels that may be
stuck on. The entire display must be black. If pixels are
stuck on, replace the navigation unit.
The panel touch sensing system consists of a touch
sensitive resistive membrane covering the display.
Contrary to other systems using infrared beams, the
screen has to be physically touched to make it work.
The display has the capability of 479 touch locations
(left to right), and 233 touch locations (top to bottom).
The upper left hand corner is position (0, 0) and the
lower right hand corner is (479, 233) as displayed.
Touching anywhere on the screen displays the
coordinate of the location, and a icon appears where
you touched the screen. If any area of the screen either
doesn’t respond, or responds at some other location
when touched, then replace the navigation unit.
NOTE: Unlike earlier screens that used infrared sensors,
direct sunlight does not affect this test. The display screen uses a touch sensitive membrane.
This means that every location of the entire surface of
the display is touch sensitive. This diagnostic allows
alignment of these touch locations with the location of
the buttons images on the screen.
Normally this should n
ever need adjustment, and is
used only to adjust the touch locations for parallax (the
touch locations appear different when viewed at an
angle). However, if an adjustment is necessary, follow
this procedure:
 The screen consists of the button icons. Touch the center of the five buttons on order 1 5.
 To store any change you make, touch the Set button.
 Use the Return key to exit the diagnostic.
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Unit Check (Quick Check)Display
Radio
23-305
ReturnReturn
ReturnSelect Check Units Display Radio Hard Key
Yaw Sensor DVD
GPS
ECU Info.
Rear Camera
PC Card Info Aircon
HFL
XM Display
OK
OK
Connection
Version
040423
Radio OK
Connection
OK
0.2dBuV
Electric Field Intensity
7150
CD Mech. Version
Some of the tests and screens that are displayed under
the Unit Check are different from the more detailed
checks listed in other areas of this service manual.
To start the test, select the item you want to check.
Display
Radio
GPS
ECUInfo.
 Rear Camera
 PC Card Info.
 Hard Key
 Yaw Sensor
DVD
 Aircon
HFL
XM This performs additional checks on the communication
bus between the navi CPU and the navigation display.
In addition, this test checks the internal electronic
functions
If the connection is NG, replace the navigation unit.
 Connection verifies internal communications.
 Version represents the software version for the display.
This diagnostic screen checks the internals of the radio
(AM and FM) and CD player. If NG, replace the
navigation unit.
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Hard Key
Yaw Sensor DVD
Aircon
HFL
23-308Navigation System
System Diagnostic Mode (cont’d)
Hard KeyReturn
Return
ZOOM OUT ZOOM IN
CANCEL SET UP MAP
MENU INFO
MODE CH
CH
VOL
VOL
FF
REW
RPT RDM
SEEK UP SCAN
AUDIO
CD/AUX
AM/FMSKIP
SKIP
SEEK DOWN Keep Pushing to Return.
Yaw Sensor
Zero Point Output OK OK
Output Value x.xxxV
Current Offset x.xxxV
Temperature in ECU xx°C
Return
Return
ReturnDVD
Error Detail -
Version 20050404
Maker ID 0x01
Navi Platform 0x01
Connection OK Aircon
HFL
Connection OK
This diagnostic screen checks the status of each of the
hard buttons surrounding the navigation display. When
you press each hard button, the corresponding item on
the screen should flash blue. Touch the return key, or
press and hold the joystick to exit.
NOTE: It is normal for the VOL ( , ) CH ( , ) and
MODEbuttontobeinactive.
This screen gives a quick test of the yaw sensor
functionality based on the two voltages Sensor and
Offset. For more information see the Yaw Rate
Diagnostic. This diagnostic tests the navigation DVD reader.
This diagnostic tests the climate bus connection (AC-SI
and AC-SO) between the navigation unit and climate
control unit. Make sure the engine is running for this
test.
 This checks the 4 wire communication bus between the HFL and the navigation.
 When connection is shown with NG, check the connection between the navigation unit and the
HandsFreeLink control unit.
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Yaw Rate
Example: Vehicle stopped
Normal Abnormal
Example: Vehicle turning
Normal Abnormal
23-314Navigation System
System Diagnostic Mode (cont’d)
ReturnYaw Rate
Sensor Offset
CCW Factor
CW Factor x.xxxV
x.xxxV
x.x%
x.x% Tuning
This diagnostic checks the yaw rate sensor in the
navigation unit. This device detects when the vehicle
turns, and repositions the vehicle position icon on the
map screen. For more detailed information, see the yaw
rate sensor theory of operation under System
Description (see page 23-283).
 Sensor indicates the voltage output from the yaw rate sensor. It should indicate about 2.500 V when the
vehicle is stopped.
 Offset is the reference voltage or standard within the yaw rate sensor. It also should indicate about 2.500 V
when the vehicle is stopped.
 A sensor output voltage LOWER than the Offset voltage indicates that the vehicle is turning to the
right.
A sensor output voltage HIGHER than the Offset
voltage indicates that the vehicle is turning to the left.
 The yaw rate offset, and sensor should both indicate about 2.500 V when the vehicle is stopped. If either
reads zero, or 5.000 V, replace the navigation unit.
 The yaw rate offset and sensor should be within / 0.01 V of each other when the vehicle is stopped.
The sensor value should change relative to the offset
as the vehicle turns while driving. If not, replace the
navigation unit.
Offset 2.526 V Offset 2.526 V
Sensor 2.516 2.536 V Sensor 2.623 V
Offset 2.526 V Offset 2.526 V
Sensor 2.678 V (left turn)
2.478 V
(right turn) Sensor 2.623 V
(no change on
turns)  Sensitivity study represents the status of the internal
tuning function. At initialization, this value starts at 6
and increases to 10 as the internal correction values
become more accurate.
 The settings CCW Cal Factor, CW Cal Factor, and Set are for factory use only. THIS SHOULD NEVER BE
ADJUSTED.
 For detailed analysis of the yaw rate select tuning.
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