Honda CR-V: System Diagnostic Mode

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 seconds. The display screen then goes directly to the Diagnostic Menu.


Honda CR-V. Navigation System

2. After the display changes to the Diagnostic Menu, select the item you want to check, and the test will begin. To return to the previous screen, select "Return".

Navi System Link

NOTE: The Mic Level indicator must reach the 6th bar or greater to pass the test.

Honda CR-V. Navigation System

Monitor Check

Overview of navigation display

The illumination input from the gauge brightness control provides back lighting for the buttons surrounding the screen.

These screens allow you to troubleshoot the navigation display. Select the item you want to troubleshoot, and follow the diagnostic instructions.

Honda CR-V. Navigation System

RGB Color

This screen verifies that the navigation display is receiving the video (R, G, B and Composite sync) signals properly. The three primary colors should all be shown without distortion. The combination of all three should produce a central white section. If any of the colors are missing, troubleshoot for the color signal (see page 23-110). If the picture has lines in it, or scrolls horizontally or vertically, troubleshoot for a Composite sync problem.

Honda CR-V. Navigation System

Gray Tone

This screen looks for problems with contrast. You should be able to see the changes from bar to bar across the scale.

Honda CR-V. Navigation System

White Raster

This diagnostic screen checks for pixels that may be "dead" (off). The entire display must be white. If pixels are "dead", replace the navigation unit.

Honda CR-V. Navigation System

Black Raster

The entire display must be black. This diagnostic screen checks for pixels that may be "stuck" (on). If pixels are "stuck" on, replace the navigation unit.

Honda CR-V. Navigation System

Color Pattern

The chart below shows the colors being used for the Map and Menu screens. This is for factory use only. To check the color signal use the "RGB" test.

Honda CR-V. Navigation System

Monitor Adjustment

This allows you to center the navigation display. Use the joystick to move the picture up/down or left/right. It is unlikely that you will ever need to adjust the monitor position. The "Default" button will reset the display position to factory specifications. The factory default is 0, 0. The "H-POS" button is for factory use only.

Honda CR-V. Navigation System

Touch Panel Check

The panel touch sensing system consists of a touch sensitive resistive membrane covering the display.

Contrary to other systems using infrared beams, the screen has to be physically "touched" to make it work.

The display has the capability of 479 locations (left to right), and 233 touch locations (top to bottom). The upper left hand corner is position (0, 0) and the lower right hand corner is (479, 233) as displayed. Touching anywhere on the screen will display the "coordinate" of the location, and cause the place you touch to display a "+" icon. If any areas of the screen either don't respond, or respond at some other location when touched, then replace the navigation unit.

NOTE: Unlike earlier screens that used infrared sensors, direct sunlight will not affect this test.

Honda CR-V. Navigation System

Touch Panel Calibration

The display screen uses a touch sensitive membrane.

This means that every location of the entire surface of the display is touch sensitive. This diagnostic allows alignment of these touch locations with the location of the button images on the screen.

Normaly this should never need adjustment, and is used only to adjust the touch locations for parallax (the touch locations appear different when viewed at an angle). However, if an adjustment is necessary, follow this procedure:

Honda CR-V. Navigation System

Unit Check

To start the test, select the item you want to check.

Honda CR-V. Navigation System


This performs additional checks on the communication bus between the navi CPU and the display. In addition, the internal electronics and touch screen functionality are confirmed.

If the connection is NG, replace the navigation unit.

Honda CR-V. Navigation System


This diagnostic screen checks the internals of the radio (AM and FM) and CD player. If NG, replace the navigation unit.

Honda CR-V. Navigation System

Navi ECU

This screen looks for problems with the navigation unit.

When you initiate this diagnostic, the navigation unit may delay up to a minute while the diagnostic runs.

Honda CR-V. Navigation System

PC Card info

There is no PC Card in the PC slot, and the screen should say, "PC Card is not inserted".

Honda CR-V. Navigation System

If the factory provides a PC card and instructs you to insert a card, then the screen displays the Manufacturer, and Product Name as shown in the following screen.

Touch the "FILES" button to see the contents of the card.

Honda CR-V. Navigation System

Hard Key

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: VOL/PWR knob operation (turn, push) and OPEN/CLOSE button operation are not displayed.

Honda CR-V. Navigation System

Car Status

Use this screen to confirm that the navigation unit is properly receiving input signals. Signals equal to (0) are OFF, and signals equal to (1) are ON. If the value on the display does not match the actual vehicle status, then check the wire carrying the signal.

Honda CR-V. Navigation System

The VSP comes from the PCM as a dedicated signal.

Internally, the navigation unit compares the actual VP on the map against street data to adjust the pulse to speed scaling factor.

The Back signal is used by the navigation unit to allow the map screen to show the VP moving backwards when in reverse and to trigger the optional rear view camera. This signal is needed because the Speed Pulse does not provide any directional information to the system.

This signal is used by the navigation unit to determine whether to put the navigation screen into the Day or Night brightness mode. (Setup screen 1)

The navigation unit has a microswitch to detect this. If open is indicated when the display is closed, replace the navigation unit.

GPS Information

This screen shows the current status of GPS reception.

The circular diagram shows the current location of the GPS satellites (yellow balls) as they would appear in the sky. The outer circle represents the horizon (0 degrees elevation). The middle and inner circles represents 30 and 60 degrees respectively. The very center of the diagram (90 degrees elevation) is directly overhead.

Nearby obstructions, like tall buildings, will block satellites in that direction. That is why it is necessary to be in an open area to effectively troubleshoot GPS reception issues. The satellites shown on the diagram correspond to the "PRN" number in the "GPS Details" screen. There are always 24 "active" GPS satellites in orbit. Because satellites fail, and have to be removed from service, spares are always parked in orbit, ready to be activated. This is why the PRN (satellite ID number) can be greater than 24.


Honda CR-V. Navigation System

NOTE: Push and hold the "Map/Guide" button, and the "dots" on the diagram are replaced with the "PRN" # (satellite numbers). These numbers correspond to the numbers in the "PRN" column on the "GPS details" screen.

GPS Detail

By pressing and holding the MENU button for 10 seconds, a GPS Detail screen appears. This screen displays real time incoming satellite positional data.

Most of the information shown on this screen is for factory use, however some of the data can indicate partial GPS signal interference.

Honda CR-V. Navigation System

NOTE: The data shown in the GPS Detail screen is an example only.

Honda CR-V. Navigation System

Yaw Rate

This diagnostic checks the yaw rate sensor in the control unit. This device detects when the vehicle turns, and repositions the vehicle postion icon on the map screen. For more detailed information, see the yaw rate sensor theory of operation under "System Description".

Example: Vehicle stopped

Offset 2.526 V
Sensor 2.516-2.536 V

Offset 2.526 V
Sensor 2.623 V

Example: Vehicle turning

Offset 2.526 V
Sensor 2.678 V (right turn)
2.478 V (left turn)

Offset 2.526 V
Sensor 2.623 V (no change on turns)

The settings "CCW Cal Factor", HCW Cal Factor", and "Set" are for factory use only. THIS SHOULD NEVER BE USED.

NOTE: Do not try to adjust the yaw rate sensor without instructions from the factory. See next paragraph for tuning.

Honda CR-V. Navigation System

Yaw Rate Tuning

This diagnostic allows you to graphically display problems with the yaw rate sensor.

For serious problems with the sensor, the stationary test usually confirms whether the sensor is defective.

For yaw rate issues related to driving, perform the road test described below.

1. Stationary test If the "VP" icon spins in place and the "ANG-Disp" value slowly increases or decreases in value, the yaw rate sensor is defective.

Replace the Navigation unit.

2. Road test: Drive the vehicle on a very straight road.

Enter the diagnostic mode, select "Yaw rate", and touch the "Tuning" button. While driving down a straight road, the white "dots" should trace a straight line across the screen. However, if you are driving on a straight road, and you notice the dots constantly dropping down or heading up as you drive, the navigation unit's yaw sensor is defective.

You can touch "Reset" to clear "ANG-Disp", and dotted line.

3. If either test fails, please enter "Yaw rate sensor defective" for the problem description, on the "Navigation core return form".

Honda CR-V. Navigation System

Tire Calibration

As the vehicle moves, the navigation system receives speed pulses from the PCM. These pulses are converted using a conversion factor to a mph speed that moves the vehicle position (VP) on the map. The navigation system has an internal tuning function that generates and refines this factor based on actual driving. The "Level" indicates the status of the tuning.

At navigation initialization, it begins at 0, and increases to 10 as the navigation system is used.

Honda CR-V. Navigation System

Functional Setup

Select the item you want to check.

Honda CR-V. Navigation System

Log Data

This screen allows the factory to collect log data to troubleshoot navigation system issues.

Honda CR-V. Navigation System

Honda CR-V. Navigation System

GPS Send Time

This screen is for factory use only. It allows adjustment of the GPS time. This display updates in real time.

Honda CR-V. Navigation System

Demo Mode

This screen allows the navigation system to "drive" a route, when the vehicle is stationary. Typical applications include auto shows, and other events.

This feature allows a visitor to enter a destination, and see the system "drive" to the destination. No speed signal is needed.

Honda CR-V. Navigation System

Mic Level

This diagnostic screen allows you to independently test the microphone and the TALK and BACK buttons. They are used to activate the voice control system. The microphone is located near the map light in the ceiling.

It is directional, and works best if the voice is coming from the drivers seat.

Honda CR-V. Navigation System

NOTE: If the radio is off, and there is movement in the indicator-even without speaking, then ensure that the vents are not blowing on the microphone.

This should resolve voice control complaints such as:

Solar Angle

This screen graphically displays the sun's position as determined by GPS.

This screen is for factory use only.

Honda CR-V. Navigation System


This screen displays the current version of the program, and allows the loading of a new version of the program either from a CD/DVD or from a PC card.

The Program Flash version should always be greater than or equal to the Program Disc version. IPL, APL, DBOOT, and System uCom are for factory use only.

The Model code is SWA, and is for factory use only.

This code is stored on a chip in the navigation unit.

Therefore, every model has a unique part number for the navigation unit.

NOTE: If any model number other than SWA is displayed, replace the navigation unit with the correct part. The model code tells the navigation unit what software to load off the DVD.

Do not use Download unless instructed to do so by the factory.

Honda CR-V. Navigation System

Save Users Memory

When replacing the navigation unit, this function allows the dealer to transfer the customer's personal data to the new navigation unit.

This is similar to saving and entering the customer's audio presets when replacing an audio core. The transferred information includes their Setup settings, and personal addresses. The dealer inserts a PC card (like the PC card in the HDS), and then selects the "Save Users Memory" function. The two functions in this diagnostic screen are Export and Import. Export saves the customer's data to the PC card, and Import moves the PC card files to the new core.

See the FAGs below for information regarding PC cards, and the use of this function.

Honda CR-V. Navigation System


Select this button to move the customer's data from the original navi ECU to the PC card. Select "YES" on the "Export User Data" Confirmation screen. The process takes only a couple of seconds. The system stores two small files on the card.

Honda CR-V. Navigation System


After installing the customer's original DVD in the new core, allow the system to boot up. Insert the PC card in the new core and enter the navigation diagnostic mode.

Honda CR-V. Navigation System

Select "YES" on the "Import Confirmation" screen.

Import moves the two files stored by the Export process from the PC card to the new navi ECU. When the transfer is finished (a few seconds) the system will automatically reboot. After the system reboots, remove the PC card from the PC slot.

If the Import button is grayed out, follow the troubleshooting in the FAGs below. The customer's files can only be transferred to a new core if the "Model" and the "Program Flash" shown on the "Version" screen are the same. So files cannot be transferred from Civic to Accord, or from a Civic with version 1.07.00 to a Civic with version 1.32.00.

PC Card FAOs

Honda CR-V. Navigation System

Honda CR-V. Navigation System

Error Message Table

Honda CR-V. Navigation System


 CD, DVD, and PC Card Removal/Installation

If the display will not open, use this procedure to manually open the display and remove the CD, DVD, and/or the PC card. 1. Remove the navigation unit from the vehicle. 2. On the bench, carefully p

 Navigation Unit Removal/Installation

SRS components are located in this area. Review the SRS component location. Also review the precautions and procedures in the SRS section before doing repairs or service. NOTE: Put on gloves to pro



 Charging System

Component Location Index CHARGING SYSTEM INDICATOR (In the gauge control module) UNDER-HOOD FUSE/RELAY BOX (Has built-in ELECTRICAL LOAD DETECTOR [ELD] UNIT) BATTERY ALTERNATOR DRIVE BELT AUTO-TENSIONER Symptom Troubleshooting Index Charging system indicator does not come

 PCM Replacement

NOTE: Make sure the HDS is loaded with the latest software version. If you are replacing the PCM after substituting a known-good PCM, reinstall the original PCM, then do this procedure. During the procedure, is any READ DATA, WRITE DATA, or other data checks fail, note the failure, then con

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