Honda CR-V: General Troubleshooting Information
General Operation
Refer to the navigation system manual, for the
navigation system operating procedures.
Anti-theft Feature
The navigation system has a coded theft protection
circuit. Make sure you have the customer's anti-theft
security code before;
- Disconnecting the battery
- Disconnecting the navigation unit 12P and 17P
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".
When replacing the navigation unit, be sure to give the
customer the new anti-theft security code.
Symptom Diagnosis
Certain circumstances and system limitations will result
in occasional vehicle positioning errors. Some
customers 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
customers about symptoms of the navigation system.
Self-Inertial Navigation Limitations
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 "Destination
icon" shown or the map may be up to several
hundred feet away from the actual location.
Global Positioning System (GPS) Limitations
The GPS cannot detect the vehicle's position during the
following conditions:
- For the first 5 to 10 minutes after reconnecting the
battery (This can take as long as 45 minutes).
- When the satellite signals are blocked by tall
buildings, mountains, tunnels, large trees, or large
trucks.
- When the GPS antenna is blocked by an object placed
above it in the vehicle. The GPS antenna requires a
clear unobstructed view of the sky.
- When the satellite signals are blocked by the
operation of some electronic aftermarket accessories
including, but not limited to non-OEM in-dash
entertainment units (radio, CD players/changers, and
Lo Jack), cell phones placed near navigation system
and window tinting above the GPS antenna.
The accuracy of GPS is reduced during these instances:
- When only three satellite signals can be received
(Four satellite signals are required for accurate
positioning).
- When the satellite control centers are experiencing
problems.
- When driving near high tension power lines.
Muting Logic
Whenever the navigation system is giving guidance,
the front speakers are muted. When the voice control
system is being used, all of the speakers are muted.
LCD Unit Limitations
Symptom Duplication
- If you can duplicate the symptom, compare it to a
known-good vehicle. Only use a vehicle of the same
model, same year, same trim, and same software
version. If you can duplicate the symptom in the
known-good vehicle, then it is a characteristic of the
system.
- When the symptom can be duplicated, follow the self-diagnostic
procedures and the appropriate
troubleshooting procedures.
- When the symptom does not reappear, or only
reappears intermittently, ask the customer about the
conditions when the symptom occured.
- Try to establish if outside interference may be the
cause.
- Try to duplicate the symptom under the same
conditions the customer experienced.
- Vibration, temperature extremes, and moisture
(dew, humidity) are factors that are difficult to
duplicate.
- Inspect the vehicle for aftermarket electronic
devices (vehicle locators, radar detector amps, etc.)
that may be hidden.
Service Precautions
- Check for service bulletins or Service News articles
that may relate to the customer's concern.
- The navigation unit is located in the dashboard.
- 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 the GPS
initialization.
- After reconnecting the battery, you have to wait to get
the initial signal from the satellite. It will take from 10
to 45 minutes.
- Before returning the vehicle to the customer, enter
the navigation system anti-theft security code, then
set the clock.
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 on
the length of time the system was without power)
- Map matching to align the GPS to a location on the
map
Entering Security Code
The navigation system has a coded theft protection
circuit. Make sure you have the customer's anti-theft
security codes number before;
- Disconnecting the battery
- Disconnecting the navigation unit 17P 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 code, then select "Done."
When replacing the navigation unit or audio unit, be
sure to give the customer the new anti-theft security
code.
GPS initialization
Depending on the length of time the battery or the
navigation unit was disconnected, your system may
require GPS initialization. If it does, the following
screen appears:
If this procedure is not necessary the system proceeds
directly to the Disclaimer screen. During initialization,
the system searches for all available GPS satellites, and
obtains their orbital information. During this procedure
the vehicle should be out in the open with a clear view
of the sky.
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 you now see the
Disclaimer screen, the GPS initialization is complete.
NOTE:
After Servicing Procedures-Map Matching
- Park the vehicle in an area where the GPS satellite
signals will be unobstructed, and check the satellite
mark on the display.
- Drive the vehicle 1 mile before entering a destination
and confirm the road being used is displayed at the
bottom of the screen (map matched).
- Enter the dealer address and confirm the system
routes and performs normally.
- Clear any previous destinations and address entries
that may have been entered for testing purposes.
Obtaining A Navigation DVD
If the navigation DVD is lost or damaged, or you need a
yearly updated DVD, you have two ways to purchase
one. You can either call (888) 291-4675, or order on-line
at www.honda.com "ORDER NAVIGATION DVD" link.
Both methods require a credit card. The DVD for this
model has an turquoise (blue/green) label, and cannot
be ordered through the parts system. The following
DVDs will not work in this navigation system:
- Earlier model or different model navigation DVDs
(black, orange, or 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: Updating is optional, and there is no program to
provide free DVDs containing yearly mapping updates.
Symptom Troubleshooting Index
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Overview
The navigation system is a highly sophisticated, hybrid locating system.
The navigation unit uses global positioning system (GPS) satellite signals,
internal yaw and vehicle speed inputs, a
No picture is displayed
NOTE: Always check the connectors for poor
connections or loose terminals between the audio unit,
audio disc changer, navigation unit, and XM receiver.
1. Check the No. 23 (10
Start-up procedure and Diagnosis Menu
1. Turn the ignition switch to the ON (II) position.
Press and hold the Menu, the Map/Guide, and the
Cancel buttons. Keep them pressed for
approximately 3 second
SEE MORE:
If you ever have a moderate to
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detect the vehicle’s rapid
deceleration.
If the rate of deceleration is high
enough, the control unit will inflate
the driver’s and front passenger’s
airbags, at the time and with the
force needed.
During
Distribution of Hydraulic Pressure
As the engine turns, the ATF pump starts to operate. Automatic transmission
fluid (ATF) is drawn through the ATF
strainer (filter) and discharged into the hydraulic circuit. Then, ATF flowing
from the ATF pump becomes line pressure
that is regulated by the regula
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