23-79
10. Turn the ignition switch to LOCK (0).
11. Start the engine in the known-good vehicle, andthen perform steps 4 thru 10 on the known-good
vehicle.
12. Compare the number of stations received in steps 6 and 9 in the client’s vehicle with the number of
stations received in the known-good vehicle.
If the number of stations received is the same, or within 10 %, the audio unit’s tuner performance
is OK. The problem may be atmospheric
conditions, multi path interference, or other
obstructions to the radio signal.
If the client’s vehicle receives fewer stations by at least 10 %, go to step 2 of poor AM or FM radio
reception of interference (see page 23-29).
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General Operation
Anti-theft Feature
Symptom DiagnosisSelf-Inertial Navigation Limitations
23-90Navigation System
General Troubleshooting Information
Refer to the Navigation System manual for the
navigation system operating procedures.
The navigation system has a coded theft protection
circuit. Be sure you have the client’s anti-theft security
code before;
Disconnecting the battery
Disconnecting the navigation unit A (17P) and C (12P) connector
Removing the No. 23 (10 A) fuse from the under-hood fuse/relay box
After service, reconnect power to the navigation unit,
and turn the ignition switch ON (II). Enter the 4-digit
anti-theft security codes, then select Done.
If the code cannot be found, use the interactive Network
(iN) to look it up. You can view the serial number in one
of the Navi ECU diagnostic screen (see page 23-139).
Alternatively, you can find the serial number from the
navigation unit in the dash.
When replacing the navigation unit, be sure to give the
client the new anti-theft security code.
Certain circumstances and system limitations can result
in occasional vehicle positioning errors. Some clients
may think this indicates a problem with the navigation
system when, in fact, the system is normal. Keep the
following items in mind when interviewing clients
about symptoms of the navigation system. The limitations of the self-inertial portion of the
navigation system (the yaw rate sensor and the vehicle
speed signal) can cause some discrepancies between
the vehicle’s actual position and the indicated vehicle
position (GPS vehicle position).
The following circumstances may cause vehicle
positioning errors:
Moving the vehicle with the engine stopped and the vehicle stopped, such as by ferry or tow truck, or if
the vehicle is spun on a turn table.
Tire slippage, changes in tire rolling diameters, and some driving situations may cause discrepancies in
travel distances. Examples of this include:
– Continuous tire slippage on a slippery surface.
– Driving with snow chains mounted.
– Abnormal tire pressure.
– Incorrect tire size.
– Frequent lane changes across a wide highway.
– Continuous driving on a straight or gently curving highway.
Tolerances in the system and map inaccuracies will sometimes limit how precisely the vehicle position is
indicated. Examples of this include:
– Driving on roads not shown on the map (map matching is not possible).
– Driving on a road that winds in one direction, such as a loop bridge, an interchange, or a spiral parking
garage.
– Driving on a road with a series of sharp hair-pin turns.
– Driving near a gradual highway exit or transition.
– Driving on one of two close parallel roads.
– Making many 90 degree turns.
– The direction to destination icon or the destination icon shown or the map may be up to several
hundred feet away from the actual location.
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Î
Map MatchingObtaining a Navigation DVD
23-94Navigation System
General Troubleshooting Information (cont’d)
Navigation system is unable acquire a
Move vehicle to another location
Turn the ignition switch off
Disconnect the battery for 30
minutes to clear the GPS receiver’s
memory
Reconnect the battery and follow
the screen prompts proper GPS signal.
If the navigation system finds the satellites properly,
this box clears, and changes to the Disclaimer screen. If
within 10 minutes the system fails to locate a sufficient
number of satellites to locate your position, the
following screen appears.
After 30 minutes with this screen displayed, turn off the
engine, then restart the vehicle. If the Disclaimer screen
appears, the GPS initialization is complete.
NOTE:
The average acquiring time is less than 10 minutes, but it can take as long as 45 minutes.
If the system is still unable to acquire a signal, follow the instructions on the screen. If this screen appears
again, go to troubleshooting for the GPS icon is white
or not shown (see page 23-122).
To bypass the GPS acquire screens, press and hold the Menu, and Zoom out keys at the same time.
Touch the Return button on the screen to exit the
diagnostic mode. This allows you to continue
troubleshooting while in the shop.
This part of the initialization matches the GPS
coordinates with a road on the map screen. To do this
part of the procedure, make sure that the navigation
system displays a map, and drive the vehicle on a
mapped road shown on the map screen. Do not enter a
destination at this time. When the name of the current
road you are driving on, appears at the bottom of the
screen, the entire procedure is complete. Your system
is now ready to use. If the navigation DVD is lost or damaged, or you need a
yearly
updated DVD, you have 2 ways to purchase one.
You can either call 888-291-4675, or order on-line at
www.hondanavi.com.
Both methods require a credit card. The DVD cannot be
ordered through the parts system. The following DVDs
will not work in this navigation system:
Earlier model navigation DVDs (black, orange, or older vesions with a white label)
Map software programs manufactured by other companies
DVD movies, or DVDs containing audio recordings
Copies of an original Navigation DVD
Update DVDs are available for purchase usually in the
fall of each year. They may contain the following: Enhanced maps and points of interest (POI) coverage
Fixes for minor software bugs
Additional features
NOTE: Map matching must be done any time the DVD is removed or replaced.
Always order navigation DVDs on an as-needed basis. During a typical model year, each color DVD may
undergo a half a dozen software only version
upgrades to fix minor issues on some or all models
the DVD supports. This is normal. Usually only the
letter at the end of the version number changes,
while the database (maps and POIs) remain
unchanged.
Never promise your customers future free updates.
There are no free programs for updating the
navigation DVD. Update DVDs are generally available
for purchase each fall. The on-time DVD order site
provides information when an update for a particular
color DVD is available, damaged discs are not
warrantable.
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Symptom Diagnostic procedure Also check for
23-98
Navigation System
Symptom Troubleshooting Index
Navigation system stays on the
GPS initialization screen
Symptom Troubleshooting
(see page 23-92) 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 23-126)
Navigation unit
GPS antenna/cable
PCM (speed and fuel pulses)
Harness/fuses/switches
System always comes up in in-
line diagnostic mode Symptom Troubleshooting
(see page 23-127)
Navigation system will not accept
security code Symptom Troubleshooting
(see page 23-134)Wrong color DVD
Navigation frequently asks for
anti-theft code and/or needs GPS
initialization Symptom Troubleshooting
(see page 23-131)
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 23-122) 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 23-126)
Navigation unit
GPS antenna/cable
ECM/PCM (speed signal)
No picture is displayed Symptom Tr oubleshooting
(see page 23-119) 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 23-120) 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 23-128)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 23-128) Navigation unit
The wrong color DVD is installed
The DVD is damaged or dirty
Harness/fuses/switches
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SymptomDiagnostic procedure Also check for
23-100Navigation System
Symptom Troubleshooting Index (cont’d)
Navigation display stays on with
ignition switch in LOCK (0)
Symptom Troubleshooting
(see page 23-129) Harness/fuses/switches
Aftermarket accessory connected to
the system
DVD read error messages Symptom Troubleshooting (see page 23-127) Navigation unit
Wrong color DVD installed
Damaged DVD
Navigation system will not go
beyond the disclaimer screen and
displays the OK button See navigation display buttons do
not work or respond properly
Wrong color DVD installed
Scratched or damaged DVD
Navigation unit
The navigation anti-theft code
card is lost or missing See anti-theft feature (see page
23-90)
The vehicle icon lags behind
when the vehicle turns See self-inertial navigation
limitations (see page 23-90) Aftermarket accessories connected to
the system
GPS antenna/cable
Navigation screen is darker than
normal or takes time to brighten
when it is cold See LCD display unit limitations
(see page 23-91)
The navigation clock is off by 1 to
3 hours after replacing the
navigation unit See service precautions (see page
23-92)
Perform map matching (see page
23-94)
GPS antenna/cable
Check and adjust the clock settings
A new navigation DVD is needed See obtaining a navigation DVD (see page 23-94)
Time is not correct Reset Time Adjustment in set-up The wrong colored DVD or version is installed
The DVD is scratched or dirty See ‘‘DVD Handling and Cleaning’’ (see page 23-95)Navigation unit
The wrong DVD was installed and
now the system does not function
properly See Precaution customer Sneak
Previews (see page 23-97)
Install the correct version DVD
Check any official Honda service
website for more service information
about the navigation system
A specific city cannot be found See How to answer client questions about navigation
coverage (see page 23-97) The DVD is scratched or dirty
Refer to Database limitation in the
navigation system manual to report
database errors
The Honda Globe Screen (not the
Acura Globe Screen) appears
every time the vehicle is started Symptom Troubleshooting
(see page 23-135)
Also see the symptom The wrong DVD
was installed and now the system does
not function properly
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µ
µ µ
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µ
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No picture is displayed
YES
NO
YES
NO YES
NO
YES
NO
23-119
Symptom Troubleshooting
NAVIGATION UNIT CONNECTOR A (17P)
BBACKUP(WHT)
NAVIGATION UNIT CONNECTOR A (17P) ACC RADIO (PUR)
NOTE: Check the vehicle battery condition first.
Make sure that the correct DVD color and version are installed.
Check any official Honda service website for more service information about the navigation system.
Check the connectors for poor connections or loose terminals.
Before troubleshooting, make sure you have the navigation system anti-theft code.
1. Check the No. 23 (10 A) fuse in the under-hood fuse/relay box and No. 35 (7.5 A) fuse in the under-
dash fuse/relay box, and reinstall the fuse if it is OK.
Go to step 2.
Replace the fuse and recheck.
2. Turn the ignition switch to ON (II).
3. Operate the radio and listen to the audio.
Go to step 4.
Refer to audio system troubleshooting.
4. Turn the ignition switch to LOCK (0).
5. Remove the navigation unit (see page 23-155). 6. Measure the voltage between navigation unit
connector A (17P) terminal No. 17 and body ground.
Go to step 7.
Repair open in the wire between the under-
dash fuse/relay box and the navigation unit.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between navigation unit connector A (17P) terminal No. 14 and body ground.
Go to step 9.
Repair open in the wire between the under-
dash fuse/relay box and the navigation unit.
(cont’d)
Wire side of female terminals
Wire side of female terminals
IsthefuseOK? Can y ou hear t he aud i o? Is there battery voltage?
Is there battery voltage?
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YES
NO YES
NO
YES
NO
YES
NO
Picture has lines/rolls/other issues or is an
odd color
23-12023-120Navigation System
Symptom Troubleshooting (cont’d)
NAVIGATION UNIT CONNECTOR A (17P)
RADIO GND
(BLK)
NAVIGATION UNIT CONNECTOR C (12P) GND (BLK)
9. Measure the voltage between navigation unitconnector A (17P) terminal No. 9 and body ground,
and between navigation unit connector C (12P)
terminal No. 4 and body ground.
Replace the navigation unit (see page 23-155).
Repair open in the wire between the
navigation unit and body ground (G 504) (see page
22-30), (G505) (see page 22-32). NOTE:
Check the vehicle battery condition first.
Make sure that the correct DVD color and version are installed.
Check any official Honda service website for more service information about the navigation system.
Check the navigation screen settings for brightness, contrast, black level and the color screen for map
color and menu color.
Check the connectors for poor connections or loose terminals.
Before troubleshooting, make sure you have the navigation and audio system anti-theft codes.
1. Check for electronic aftermarket accessories (possibly hidden) mounted near the navigation unit.
Disable the accessories, and recheck.
Go to step 2.
2. Turn the ignition switch to ON (II).
3. Start up the navigation picture.
Go to step 5.
Go to step 4.
4. Go into the Diagnostic mode and use RGB Color diagnostic under Monitor Check (see page 23- 137).
Go to step 5.
Replace the navigation unit (see page 23-155).
Wire side of female terminals
Wire side of female terminals
Is t her e l ess t han 0.1 V ? Ar e t her e any el ect r oni c accessor i es?
Is the picture scrolling horizontally (lef t to right orright to left)?
Ar e t he r ed , gr een, and bl ue col or ed ci r cl e show n?
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YES
NO
YES
NO
Navigation display buttons do not work or
respond properly
23-12123-121
5. Turn the ignition switch to LOCK (0), then turn toON (II) and observe the navigation picture.
Check for sources of electrical noise, such as
poor battery connection, alternator, defective
battery, aftermarket accessories or cell phone, and
poor pin fits at the navigation unit.
Replace the navigation unit (see page 23-155). NOTE:
Check the vehicle battery condition first.
Always make sure that the correct DVD color and version are installed.
Check any official Honda service website for more service information about the navigation system.
Always check the connectors for poor connections or loose terminals.
Before troubleshooting, make sure you have the navigation and audio system anti-theft codes.
1. Turn the ignition switch to ON (II).
Replace the navigation unit (see page 23-155).
Refer to troubleshooting for no picture is
displayed (see page 23-119).
Di d t he i mage i mpr ov e?
Does t he nav i gat i on d i spl ay t ur n on?
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