Honda Accord 2008 Manual page 2573

07/11/02 09:52:59 61TA0000_230_0129
Navigation System
General Troubleshooting Information (cont'd)
Service Precautions
• If the navigation unit needs to be replaced, you can
back-up the navigation data and transfer it to a new
navigation unit. See Save users memory (see page
23-184).
• When the battery is disconnected, the internal GPS
clock is reset to 0:00. The clock will reset to the
correct time after the system finishes GPS
initialization.
• Before disconnecting the battery, make sure you
have the anti-theft codes for the audio system and the
navigation system, and write down the audio presets.
Also obtain any PGM-FI or transmission DTCs and
freeze frame date (which will be lost when the ECM/
PCM loses power).
• After reconnecting the battery, you have to wait to get
the initial signal from the satellite. It will take from 10
to 45 minutes.
• Adjust the setup clock settings (time zone and
daylight savings) in the navigation system.
• Before returning the vehicle to the customer, enter
the anti-theft codes for the audio system and the
navigation system.
System Initialization
If for any reason, you lose power to the navigation
system (like the battery was disconnected). The
navigation system will require initialization. Once
completed, your system will be ready to use.
This initialization requires the following:
• Entering the 4-digit anti-theft security code to unlock
the system
• GPS initialization (may not be needed depending of
the length of time the system was without power)
• Map matching to align the GPS to a location on the
map
23-128
Entering the Security Code
Any time power is disconnected from the navigation
unit, the 4-digit anti-theft code must be entered on the
navigation system display. This 4-digit code can be
found on a small code card that was given to the
customer. Enter the 4-digit code, then select Done.
If the navigation system anti-theft code cannot be found,
use the interactive Network (iN) to look it up. You will
need the serial number for the navigation unit to do this.
You can view the serial number by entering the
diagnostic mode. Select Unit Check from the main
menu, then the ECU info diagnostic screen. This allows
you to get the serial number without removing the
navigation unit.
The iN may display more than one code for a given
serial number. This is because serial numbers are not
unique. You may have to try more than one 4-digit code.
If no code is shown, or if the code(s) given do not work
in the navigation unit, contact the Automobile Warranty
department. If the code 0000 works, then replace the
navigation unit.
When replacing the navigation unit or audio unit, be
sure to give the customer the new anti-theft security
code.
GPS Initialization
NOTE: You must park the vehicle outside with a clear
view of the southern sky.
Depending on the length of time the battery was
disconnected, your system may require GPS
initialization. If it does, the following screen appears:
The navigation system lost power and is acquiring its
location from the GPS satellites. This usually takes
less than 10 minutes.
* Start the engine.
* Park the vehicle in an open area away from trees,
power lines, and tall buildings.
* Remove loose articles, cell phones, or electrical
accessories located near the GPS antenna.
* If this screen is displayed repeatedly when starting
the vehicle, see your dealer.
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