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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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Page 2402 of 2893

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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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Page 2404 of 2893

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GPS icon is white or not shown Voice guidance cannot be heard, is broken
up, or there is static
YES
NO
YES
NO YES
NO
YES
NO
YES
NO
YES
NO
23-12223-122Navigation System
Symptom Troubleshooting (cont’d)
NOTE:
Check the vehicle battery condition first.
Make sure the vehicle is parked outside and away from buildings.
Refer to GPS Information (see page 23-142) for realtime satellite reception display.
Check for window tinting above the GPS antenna and any non-OEM accessories mounted near the
navigation unit or GPS antenna.
1. Check for metallic window tint on the windshield and electronic aftermarket accessories (possibly
hidden) mounted near the GPS antenna or the
navigation unit.
Remove tint or the accessories, and
recheck.
Go to step 2.
2. Go into the Diagnostic Menu, and use the Navi System Link test (see page 23-136) to check the
GPS antenna.
Use the Navi ECU test under Unit Check
(see page 23-139) to check for a kinked, crushed, or
disconnected GPS antenna wire. If necessary, try a
known-good GPS antenna. If icon is still red,
replace the navigation unit (see page 23-155).
Check that nothing is blocking the GPS
antenna located behind the gauge assembly, and
recheck. Substitute a known-good navigation unit,
and recheck. 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 that the volume setting and voice feedback are turned ON.
Check the connectors for poor connection or loose terminals.
Before troubleshooting, make sure you have the navigation system 4-digit anti-theft code.
After troubleshooting, enter the navigation system anti-theft code.
1. Press the display unit SET-UP button.
2. Check the volume setting for the navigation system.
Set the volume to an audible level.
Go to step 3.
3. Check the radio operation.
Go to step 4.
Troubleshoot the audio system.
4. Go into the Diagnostic Menu, and use the Navi System Link test (see page 23-136) to check the
radio.
Troubleshoot the audio system.
Go to step 5.
5. Test the voice control switch (see page 23-156).
Replace the navigation unit (see page 23-155).
Replace the voice control switch (see page
23-157).
Is there metallic window tint or electronic accessor ies?
Is the GPS Ant icon red? Is it set to OFF?
Can y ou hear t he r ad i o?
Is the Radio icon red?I s v oi ce cont r ol sw i t ch OK ?
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Voice control does not work/respond
YES
NO
YES
NO
YES
NO
23-123
NAVIGATION UNIT CONNECTOR D (5P) NAVI GUIDE (GRN)
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 connector for poor connection or loose terminals.
Before troubleshooting, make sure you have the navigation system 4-digit anti-theft code.
After troubleshooting, enter the navigation system anti-theft code.
Before assuming that a voice complaint is hardware
related, ensure that the voice control system is being
operated correctly. Make sure you are on the correct screen when trying to issue a voice command. For instance, the
command ‘‘Find the nearest Italian Restaurant’’ only
works on a Map screen (See the Navigation System
Manual for a complete list of allowed voice
commands for the information being displayed.).
Close the windows, moonroof, and doors.
Set the fan speed to low (1 or 2).
Adjust the air flow from the air conditioning vents so that they do not blow against the microphone on the
ceiling.
Pause after pressing the navigation TALK button, then give a voice command clearly in a natural
speaking voice. If the system cannot recognize your
command, speak louder.
If the microphone picks up voices other than yours, the system may not interpret your voice commands
correctly.
If you speak a command with something in your mouth, or your voice is too husky, the system may
misunderstand your command.
Compare the system operation with a known-good vehicle. Have more than one person test the system
operation. If the known-good vehicle performs the
same, it is a characteristic of the system. 1. Turn the ignition switch to ON (II).
2. Go into the Diagnostic Menu and use the Mic Level
test under Functional Setup (see page 23-147) to
check the operation of the navigation TALK and
navigation BACK buttons.
Go to step 10.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Do the voice control switch test (see page 23-156).
Go to step 5.
Replace the voice control switch.
5. Disconnect the cable reel 20P connector and navigation unit connector D (5P).
6. Check for continuity between body ground and navigation unit connector D (5P) terminal No. 4.
Repair short to body ground in the wire
between the navigation unit and the voice control
switch, or replace the cable reel.
Go to step 7.
(cont’d)
Wire side of female terminals
Ar e t he nav i gat i on T ALK and nav i gat i on BACKbut t ons oper at i onal ?
I s t he v oi ce cont r ol sw i t ch OK ?
Is there continuity?
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YES
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NO
YES
NO
23-124Navigation System
Symptom Troubleshooting (cont’d)
NAVIGATION UNIT CONNECTOR D (5P)
CABLE REEL 20P CONNECTOR NAVI GUIDE (GRY)
NAVI GUIDE (GRN)
NAVIGATION UNIT CONNECTOR B (22P)
CABLE REEL 20P CONNECTORAUDIO REMOTE
GND (BRN)
AUDIO REMOTE
GND (BRN)
7. Check for continuity between navigation unitconnector D (5P) terminal No. 4 and cable reel 20P
connector terminal No. 8.
Go to step 8.
Repair open in the wire between the
navigation unit and the voice control switch, or
replace the cable reel. 8. Disconnect navigation unit connector B (22P).
9. Check for continuity between navigation unit
connector B (22P) terminal No. 6 and cable reel 20P
connector terminal No. 10.
Replace the navigation unit.
Repair open in the wire between the
navigation unit and the voice control switch, or
replace the cable reel.
10. Use the Mic Level dia gnostic under Functional
Setup (see page 23-147) to check the operation of
the microphone.
Check the operation of the voice control
system (see the Navigation System Manual).
Go to step 11.
11. Turn the ignition switch to LOCK (0).
12. Disconnect the microphone 3P connector (see page 23-157).
13. Disconnect navigation unit connector D (5P).
Wire side of female terminals
Terminal side of male terminals Wire side of female terminals
Terminal side of male terminals
Is there continuity? Is there continuity?
I s t he mi cr ophone oper at i onal ?
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YES
NO
From terminal To terminals
YES
NO Navigation
unit
connector Microphone
connector Wire
color
YES
NO
23-125
NAVIGATION UNIT CONNECTOR D (5P) MIC ADPT (ORN)
MIC SIG (YEL)
NAVIGATION UNIT CONNECTOR D (5P) MICROPHONE 3P CONNECTOR
NAVIGATION UNIT CONNECTOR D (5P)
14. Check for continuity between body ground and
navigation unit connector D (5P) terminal No. 2 and
No. 5 individually.
Repair short to body ground in the wire(s)
between navigation unit and the microphone.
Go to step 15.
15. Check for continuity between navigation unit connector D (5P) according to the table.
D2 D3, D5
D3 D5
Short in the wire(s) between the navigation
unit and the microphone. Replace the affected
shielded harness.
Go to step 16. 16. Check for continuity between navigation unit
connector D (5P) and microphone 3P connector
accordingtothetable.
D1 2 BRN
D2 1 YEL
D5 3 ORN
Substitute a known-good microphone
(see page 23-157), then reconnect all of the
connectors, and recheck. If the symptom/indication
goes away, replace the original microphone. If the
symptom/indication is still present, replace the
navigation unit (see page 23-155).
Repair open in the wire(s) between the
navigation unit and the microphone. Replace the
affected shielded harness.
Wire side of female terminals
Wire side of female terminals Wire side of male terminals
Wire side of female terminals
Is there continuity?
I s t her e cont i nui t y bet w een any of t he t er mi nal s? Is there continuity?
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Vehicle position icon constantly leaves road,
moves erratically, or is displayed very far
from actual position Vehicle icon wanders across the map when
driving (does not follow a displayed road) or
map or vehicle ICON spins
YES
NO
YES
NO YES
NO
23-12623-126Navigation System
Symptom Troubleshooting (cont’d)
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 for aftermarket accessories.
1. Check the GPS icon on the navigation picture.
Do the troubleshooting for GPS icon is white
or not shown (see page 23-122).
Go to step 2.
2. Go into the Diagnostic Menu, and use the Yaw Rate test (see page 23-144) to check the yaw rate sensor.
3. Go into the Diagnostic Menu and use the Car Status test (see page 23-141) to check the vehicle speed
pulse.
The problem may be a normal characteristic.
Check to see if the problem occurs in the same
place. If it does, the problem could be in the
database. Compare to a known-good vehicle under
the same conditions. If you can duplicate the
problem, report it. Refer to the client Assistance
section of the Navigation User’s Guide, ‘‘Reporting
Errors’’.
If the problem is the yaw rate sensor, replace
the navigation unit (see page 23-155). If the
problem is the vehicle speed pulse, troubleshoot
the vehicle speed signal circuit. NOTE:
Check the vehicle battery condition first.
This symptom is usually caused by a defective yaw rate sensor. Perform this diagnostic when the vehicle
is cold and warm.
Also refer to symptom troubleshooting for GPS icon is white or not shown (see page 23-122).
1. Go into the Diagnostic Menu, and use the Yaw Rate test (see page 23-144).
The system is OK.
Replace the navigation unit (see page 23-155).
I s t he GPS i con on t he map scr een?
Ar e t he y aw r at e sensor and v ehi cl e speed pul seOK ? Ar e the values cor r ect?
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