Part 4
Navigation System Diagnostic Mode
Yaw Rate Tuning
This diagnosis allows you to graphically display problems with the yaw rate sensor.
- The ANG-Disp value accumulates any differences between the offset and sensor voltages (see Yaw Rate diagnosis). When the sensor functions properly, the random changes in these two voltages generally cancels out, so the value is 0. However if one voltage is consistently higher than the other, then the ANG-Disp value accumulates the constant change.
- The Reset button temporarily clears the angular accumulation (ANG-Disp), and clears the display dots.
- Do not touch the CCW, CW, or Set buttons. These are used for factory setup only.
Two tests are explained below. For gross problems with the sensor values, the stationary test usually confirms whether the sensor is defective. For yaw rate issues related to driving, do the road test described below.
1. Stationary test: If the VP icon spins with the vehicle parked and the engine running and the ANG-Disp value slowly increases or decreases, the yaw rate sensor is defective. Replace the navigation unit Service and Repair.
2. Road test: Drive the vehicle on a very straight, smooth 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. To run the test again, touch Reset to clear ANG-Disp, and dotted lines.
If either test above fails, please enter Yaw rate sensor defective for the problem description, on the Navigation unit return form.
NOTE: The CCW, CW and Set buttons are disabled and cannot be activated.
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.
- VSP-Vehicle Speed Pulse from PCM (navigation unit connector A (8P) terminal No. 6)
a) OFF (0) when vehicle is not moving
b) ON (1) when vehicle is moving
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. As this scaling factor becomes more accurate, the Level gradually increases from 0 to 10.
- BACK-Reverse indication from taillight relay (navigation unit connector A (8P) terminal No. 5)
a) OFF (0) when the shift lever is in any position other than reverse
b) ON (1) when the shift lever is in reverse
The Back signal is used by the navigation unit to allow the map screen to show the VP moving backwards when in reverse. This signal is needed because the Speed Pulse has no direction indication.
- IGNITION-Ignition Switch Position Indication (navigation unit connector A (8P) terminals No. 1 and No. 2)
Detects if the engine is running using information provided over the F-CAN bus.
a) OFF (0) when the ignition switch is in ACCESSORY (I)
b) ON (1) when the ignition switch is in ON (II)
- ILL-Illumination Indication (navigation unit connector B (32P) terminal No. 5)
a) OFF (0) when parking lights, or headlights are off
b) ON (1) when parking lights, or headlights are on
The navigation uses the signal to determine whether to put the navigation screen into the Day or Night brightness mode. (Setup screen 1)
ILL CANCEL
This item detects whether the illumination cancel function is in use.
a) OFF (0) if illumination cancel is not selected
b) ON (1) if illumination cancel is activated
The illumination cancel function is activated by increasing the dash brightness to MAX. The F-CAN bus passes this information from the gauge control module to the navigation unit.
NOTE: This illumination cancel function is turned off when the display mode hard button is used. The button is located below and to the left of the interface dial. The illumination cancel function is turned on when you cycle the key.
Version
This screen displays the current version information for the navigation system software. In addition, this screen allows the loading of updated software if requested by the factory, or instructed by a service bulletin. Software may be loaded from a CD or a PC card.
- Program Flash: Displays the version of the navigation software in memory.
NOTE: The last two letters of the Program Flash indicates the destination of navigation ECU. For example, KA is USA.
- Program Disc: If displayed, this value represents the version of the navigation software on the navigation DVD.
- IPL, APL, DBOOT, and System uCom, are all for factory use.
- Model: For this model, the field should begin with STK.
Check any official Acura service website for more service information about navigation system.
There are two navigation DVDs produced for this model.
- The white navigation DVD labeled United States is for the US market and contains maps for the contiguous 48 US states, and some southern portions of Canada. Clients wanting additional northern coverage in Canada, can purchase a Canada navigation DVD by contacting the DVD fulfillment desk.
- The gray navigation DVD labeled Canada, is for the Canada market, and contains maps for all of Canada, plus some of the northern US states. If clients with this navigation DVD require full US coverage (including states like Florida and Texas), they may purchase a United States navigation DVD by contacting the DVD fulfillment desk.
An older navigation DVD cannot be used in a navigation unit that is uploaded with newer software. You may see this error if you order a new navigation unit as it may arrive with a higher software version loaded into its memory.
You may also see this error if a client inserted a newer navigation DVD into their unit. This is why it is never recommended that you show a client a new navigation DVD by inserting it into their current vehicle. Once the newer software is uploaded, they will see an error message when they reinstall their original navigation DVD.
If you need to Download (install) an older software version into the navigation unit, do this:
1. Install the original navigation DVD from the original navigation unit into the new navigation unit.
2. Select Download in the Version menu. The confirmation screen appears.
3. Select YES on the confirmation screen. The navigation system reboots.
4. After the navigation system reboots, go into the System Diagnostic Mode and select ECU Info. diagnosis, then select Mem Clear. The navigation system reboots.
NOTE: This step is necessary to delete all of the unwanted software version and to initialize the navigation ECU memory. Do not use Mem Clear except when doing this procedure.
5. Check that the navigation display shows the map properly.
XM (HIP) (USA models)
These screens allow troubleshooting on XM or HIP (AcuraLink) problems. Select the item you want to troubleshoot, and follow the diagnostic instructions.
XM (HIP) System Link
This diagnostic tests the cables connecting the XM (HIP) components.
XM Status
You can check the XM status in this screen.
XM (HIP) ECU
Select the item you want to troubleshoot, and follow the diagnostic instructions.
Note: Only select DATA RESET when instructed. Selecting DATA RESET will clear the AcuraLink registration, and the AcuraLink service will reset to the factory default. If the vehicle was already registered for the AcuraLink service, it will have to be reactivated by calling Acura Client Services and asking for the activation before all features will be available. The reactivation will cause the Feature Guide to start over at the first message, which will result in the client getting repeated messages.
Telematics Self-Diagnosis
This screen used to do self-diagnosis for the XM (HIP).
DTC Log Data
You can check the DTC log data in this screen.
NOTE: When DTC B2200-B2249 is displayed. It is an engineering mode and is not for trouble diagnosis.
PC Card FAQs
Error Message Table
