ECU ACURA CSX 2006 Service Repair Manual

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Symptom Diagnostic procedure Also check for
23-276
Navigation System
Symptom Troubleshooting Index
































 








Navigation system stays on the GPS
initialization screen
System Initialization (see page
23-268) Navigation unit
GPS antenna/cable is
disconnected or damaged
The wrong color DVD is installed
The DVD is damaged or dirty
Harness/fuses/switches
Vehicle position icon constantly
leaves road, moves erratically, or is
displayed very far from actual
vehicle position Symptom Troubleshooting
(see page 23-344)
Navigation unit
GPS antenna/cable
ECM/PCM (speed and fuel pulses)
Harness/fuses/switches
System always comes up in in-line
diagnostic mode Symptom Troubleshooting
(see page 23-347)
Navigation system will not accept
security code Symptom Troubleshooting
(see page 23-353)The wrong color DVD is installed
Navigation frequently asks for anti-
theft code and/or needs GPS
initialization Symptom Troubleshooting
(see page 23-350)
Loss of voltage or poor ground
(G504, G505)
Navigation unit
Low battery voltage
Harness/fuses/switches
GPS icon is white or not shown Symptom Troubleshooting (see page 23-341) Navigation unit
Aftermarket accessories
connected to the system
The wrong color DVD is installed
The DVD is damaged or dirty
GPS antenna/cable
Harness/fuses/switches
Vehicle icon wanders across the
map when driving (does not follow a
displayed road) or map or vehicle
ICON spins Symptom Troubleshooting
(see page 23-345)
Navigation unit
GPS antenna/cable
ECM/PCM (speed signal)
No picture is displayed Symptom Tr oubleshooting
(see page 23-338) Navigation unit
The wrong color DVD is installed
The DVD is damaged or dirty
Harness/fuses/switches
Picture has lines/rolls/other issues
or is an odd color Symptom Troubleshooting
(see page 23-339) Navigation unit
The wrong color DVD is installed
The DVD is damaged or dirty
Aftermarket accessories
connected to the system
Harness/fuses/switches
Display day/night mode does not
work or does not work properly If you use the display mode
button, the auto day/night
function is disabled until you turn
the ignition switch to ON (II)
Symptom Troubleshooting
(see page 23-348)Display brightness set to High in
day or night mode
Gauge control module
The wrong color DVD is installed
The DVD is damaged or dirty
Harness/fuses/switches
System locks up or freezes
constantly Symptom Troubleshooting
(see page 23-348) Navigation unit
The wrong color DVD is installed
The DVD is damaged or dirty
Harness/fuses/switches
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23-280Navigation System
System Description (cont’d)
Reverse signal
GPS antenna
AM/FM antenna Speakers
Navigation unit
Navi DVD
Navigation/Audio Display Screen
CLOCK
(Set by GPS)Color
signal
XM antenna
(satellite &
terrestrial)
Auxiliary jack
assembly
Audio remote
switches
(steering wheel)
Illumination
Signal
(lighted buttons)
AM/FM
receiverCD Player
(CD, MP3, WMA)
Audio
processor
PC Card Slot (for playing audio
MP3, and WMA audio files) Navi
processor
(ECU)
GPS
receiver
Yaw rate sensor
(senses turning)
DVD player
(navi maps)
GA-net
Audio
Section
Navigaion
Section
Illumination
(Night/Day
display mode)
ECM/PCM
(vehicle speed pulses) Voice control switch
USB Adapter unit
XM Receiver HandsFreeLink
control unitMicrophone
HFL TALK/BACK
buttons
Navigation
TALK/BACK
buttons
Stereo Amplifier
(Type S model)
Climate
control unit
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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.
(cont’d)
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••••••
••• •••
••• •••
••• ••• •••
••• •••
••• •••
Icon Color Information
Icon Icon Color
GREEN REDYELLOW WHITEGRAY
23-299
DisplayResult of
Connection
under the
Display
diagnosis menu
is OK. Result of
Connection
under the
Display
diagnosis menu
is NG. Executing (Not
completed)
Radio Result of
Connection
under the Radio
diagnosis menu
is OK. Result of
Connection
under the Radio
diagnosis menu
is NG. Executing (Not
completed)
XM Result of
Connection
under the XM
diagnosis menu
is OK. Result of
Connection
under the XM
diagnosis menu
is NG. Executing (Not
completed)
GPS Ant. All result of Antenna and
Receiver in NAVI
ECU is OK.Any result of
Antenna and
Receiver in NAVI
ECU is OK. Executing (Not
completed)
R-Camera Result of Connection
under the R-
Cammera
diagnosis menu
is OK. (optional)Result of
Connection
under the R-
Cammera
diagnosis menu
is NG. (optional)Result of the
Connection
under the R-
Cammera
diagnosis menu
is NG. (optional)Executing (Not
completed)
A/C Result of
Connection
under the Aircon
diagnosis menu
is OK. Result of
Connection
under the Aircon
diagnosis menu
is NG. Executing (Not
completed)
HFL Result of
Connection
under the HFL
diagnosis menu
is OK. Result of
Connection
under the HFL
diagnosis menu
is NG. Executing (Not
completed)
: DTC 2703 can be stored when the ignition switch is in ACCESSORY (I). With the ignition switch in ACCESSORY (I), the climate control unit is turned off and the navigation unit loses communication and
stores DTCs. It is possible that the system is normal with DTC 2703 stored. Check the system links with the
engine running, and if it shows normal, the system is OK at this time.
(cont’d)
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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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Factory diagnostic screen In Line DiagDetailed Information & Settings
23-301
In Line Diag
123
456
789
0 Return
Navi ECU
Display XXXXCorrect PIN
GPS Antenna
RR Camera RadioXM
HFL A/C
Exit Diag
Start Diag
BACK
Delete Done
KA
Select 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.)
NOTE: If the vehicle left the factory in the factory
diagnostic mode, or if the navigation unit is replaced
you will see this screen every time you turn on the
ignition.
When a navigation unit is powered up for the first time
at the factory or after replacement with a new or
remanufactured navigation unit, the factory diagnosis
screen (In Line Diag) appears. Normally the factory
does the steps necessary to verify proper operation and
terminate the factory diagnostic.
Until the proper confirmation sequence is done, the
screen appears every time the vehicle is started.
Follow the steps below to prevent the screen from
showingupinthefuture:
 Press and hold the buttons (MENU, MAP/GUIDE, and CANCEL) for about 3 seconds. The Select Diagnosis
items screen appears.
 Press and hold the MAP/GUIDE button for 5 10 seconds. A screen with a Complete button,
appears.
 Press complete, then Return, and then shut the key off for 5 seconds. Do not disconnect the battery
during this period as the unit is saving the setting to
the SRAM memory. The In Line Diag should not
appear again.
 Restart the vehicle, and confirm normal operation by completing the TQI of the Navigation System Service
Bulletin. These section allows you to run a specific diagnostic
and allows additional setting choices for some screens
that are not shown when selecting an icon from the
System Links screen.
When you select the menu item Detail Information &
Setting menu, the main diagnosis menu is displayed.
(cont’d)
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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.
(cont’d)
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GPS ECU Info.
23-306 Navigation System
System Diagnostic Mode (cont’d)
Return
Information
D-RAMCheckMem Clear
(2007.08.31 15:31:28)
Antenna OK
OK
GPS
ECU Info.Return
Receiver in Navi ECU
V-RAM OK
DVD Lid Close
Program Flash
1.64.00
Program on DVD 1.64.0000
DVD Version 4.62
Serial No. xxxxxxxxxx
Model SNRX D-RAM OK
If GPS indicates NG (ANT), then check the entire GPS
antenna wire from the navigation unit to the GPS
antenna. If the wire is crushed or damaged, try a
known-good antenna. If the diagnostic reads OK,
replace the original GPS antenna. If the diagnostic still
reads NG (ANT), replace the navigation unit.
Select information to see the GPS satellite details.
This screen looks for problems in the navigation unit.
When you initiate this diagnosis, the navigation unit
may freeze or delay up to a minute while the diagnosis
runs.
NOTE: Do not try to end this diagnostic by pressing OK
or Mem clear before it finishes, otherwise the system
may reboot.
 If V-RAM or D-RAM is NG, replace the navigation unit.
 DVD lid displays the state of DVD Lid of navigation unit.
 Program Flash: Displays the version of the navi software in memory.
 Program on DVD: If displayed, this value represents the version of the navigation software on the navi
DVD.
 DVD version represents the database version on the DVD. You can find this information in either the Setup
Screen Version, or in the Diagnostic Screen Version.
 Serial No. should be the same as the serial number found on the underside of the navigation unit. You
need this number to obtain the security code from the
Interactive Network (iN) system.
 The Mem Clr is for factory use and should not be used unless instructed by the factory.
Selecting this will clear the customer’s settings,
personal information, GPS orbital data, and anything
else stored in memory.
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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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