Part 2 of 2
Car StatusUse this screen to confirm that 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 ECM/PCM (Pin 6 of C-connector)
a. OFF (0) when vehicle is not moving
b. ON (1) when vehicle is moving
The VSP comes from the ECM/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 (see the Tire Calibrate diagnostic screen).
- BACK-Reverse indication from taillight relay (Pin 5 of C-connector)
a. OFF (0) when shift lever is in any position other than reverse
b. ON (1) when 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 and to activate the rearview camera. This signal is needed because the Speed Pulse has no direction indication.
- 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 rotating the dash brightness knob to the maximum position (clockwise). If set to (1), then when the headlights are turned on, the navigation screen remains in the "Day" display mode. The CAN bus passes this information from the gauge assembly to the navigation unit.
- ILL-Illumination Indication
(Pin 5 of navigation unit A-connector)
a. OFF (0) when parking lights, or headlights are off
b. ON (1) when parking lights, or headlights are on
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)
- DVD Lid-senses if DVD door is open
a. (Close) when door is closed
b. (Open) when door is open
The navigation unit has a micro switch to detect this. If open is indicated when the door is closed, replace the navigation unit.
F-CAN System Link
F-CAN (Fast Controller Area Network) passes information between processors on the network. The F-CAN network uses a communication protocol that transmits data at 500 Kbps.
- If the diagnostic screen below reads NG with the ignition switch ON (II), then you can use the HDS to retrieve the diagnostic trouble codes (DTCs). The data displayed in the ID boxes is irrelevant.
- For more details on troubleshooting the F-CAN, refer to the multiplex system.
GPS Information
This screen shows the current status of GPS reception. The circular diagram shows the current location of the GPS satellites (yellow dots) 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 troubleshoot GPS reception issues in an open area. There are always 24 "active" GPS satellites in orbit. Because satellites fail, and have to be removed from service, spares always parked in orbit, ready to be activated. This is why the PRN (satellite ID number) can be greater than 24.
NOTE: To use this screen for troubleshooting, the vehicle should be out side away from buildings, tall trees, and high-tension wires for at least 10 minutes with the engine running.
- The "Number of Satellites" box shows the number of acquired satellites (maximum of 12). It should contain 3 or more icons. If not troubleshoot for "GPS icon is white or not shown".
- The "Current Position" shows latitude, longitude, and elevation (in meters). If there are less than 4 satellites, the elevation can be grossly inaccurate.
- The Date/Time field shows the current date, and also a time that includes daylight savings and other offsets entered by the client in Setup screen 2 "Adjust Time Zone/Clock".
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.
- The box TS/AS and HDop/VDop is for factory use.
- The Speed and Direction information is updated in real time when driving, and can be used to detect intermittent speed sensor problems.
- The Date/Time Information is the same as in Setup screen "Adjust Time Zone/Clock".
- If the "3D" icon is shown above the yellow dots, this implies that at least 4 satellites are available for map positioning, and the "GPS" indicator on the map screen will be green. See the "Global Positioning System" detailed explanation in the "System Description".
- If the row of data in the table below begins with a "yellow dot", the AZI and EL fields can be used to locate each satellite on the circular GPS diagram (see prior screen).
NOTE: The data shown in the GPS Detail screen is an example only.
The table of values shown on the screen below has the following columns:
Yaw Rate
This diagnostic checks the yaw rate sensor in the control unit. This device detects when the vehicle turns, and repositions the vehicle position icon on the map screen. For more detailed information, see the yaw rate sensor theory of operation under "System Description"
- "Sensor" indicates the voltage output from the yaw rate sensor. It should indicate about 2.500 volts when stopped.
- "Offset" is the reference voltage or standard within the yaw rate sensor. It also should indicate about 2.500 volts when stopped.
- A "sensor" output voltage LOWER than the "Offset" voltage indicates that the vehicle is turning to the right.
A "sensor" output voltage HIGHER than the "Offset" voltage indicates that the vehicle is turning to the left.
- The yaw rate offset, and sensor should both indicate about 2.500 volts when stopped. If either reads zero, or 5.000 volts, replace the navigation unit.
- The yaw rate offset and sensor should be within +/- 0.01 V of each other when stopped. The sensor value should change relative to the offset as the car is turned while driving. If not, replace the navigation unit.
Example: Car stopped
Normal
Offset 2.526 V
Sensor 2.516 - 2.536 V
Abnormal
Offset 2.526 V
Sensor 2.623 V
Example: Car turning
Normal
Offset 2.526 V
Sensor 2.678 V (left turn) 2.478 V (right turn)
Abnormal
Offset 2.526 V
Sensor 2.623 V (no change on turns)
- The settings "CCW Cal Factor", "CW Cal Factor", and "Set" are for factory use only. THIS SHOULD NEVER BE USED.
- Touch "Tuning" to view small but gradual yaw rate problems.
Yaw Rate Tuning
This diagnostic 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 diagnostic). When the sensor is functioning normally, 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" or "CW", or "Set" buttons. These are used for factory setup only.
Two tests are explained below. For gross 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 above fails, please enter "Yaw rate sensor defective" for the problem description, on the "Navigation core return form".
Tire Calibrate
As the vehicle moves, the navigation system receives speed pulses from the ECM/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 initialization, it begins at 0, and increases to 10 as the navigation system is used.
- The "Auto Tuning" is factory set to "ON", and should remain on.
- The "LEVEL" indicates the tuning status. If it is less than 10, the unit is still calibrating.
- The "Tire-Cal. Tuning" and "Set" should not be used. It is for factory use only.
Functional Setup
Select the item you want to check.
- Log Data
- GPS Send Time
- Demo Mode
- Mic Level
- Solar Angel
- Save Users Memory ('07-08 models)
Log Data
This screen allows the factory to collect log data to troubleshoot navigation system issues.
- Normally there is no card in the "PC Card slot", and the PC slot door should always be closed.
- However, if the factory provides a PC card and instructs you to insert it into the card slot (label side up), and then slide the PC Card door shut. If instructed by the factory, select "Gyro. Sensor Logs ON". Follow the factory procedure for gathering test data, and properly ending the test.
GPS Send Time
This screen is for factory use only, do not adjust. It allows adjustment of the GPS time. This display updates in real time.
- "GPS Time" is the time as received from the GPS satellites. It is in Greenwich Mean Time (GMT).
- "System Time" is the internal time used by the navigation unit to calculate your position on the map. It is also in Greenwich Mean Time (GMT).
- "Display Time" is the time shown on Setup screen 2 "Adjust Time Zone/Clock", and reflects any changes due to daylight savings time or time adjustments entered by the client.
- Date, Hour, Minute, and "Set" should not be used.
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 allow visitors to enter a destination, and see the system "drive" to the destination. No speed signal is needed.
- To initiate the mode select "ON"
- Changing the "speed rate" in the ms (milliseconds) is optional, and represents the time between updates of the VP (vehicle position) movement.
- When you increase the rate, the VP slows down, because it is updated (moved) at a slower rate.
- When you decrease the rate, the VP is faster, because it is updated (moved) more frequently.
- 1500 ms is VP at its slowest in demo mode.
- 150 ms is VP at its fastest in demo mode (Default).
- At key off, the setting automatically returns to the default of "Off".
Mic Level
This diagnostic allows you to independently test the microphone and the TALK/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.
- Press the TALK button on the steering wheel, and in a normal voice say "testing". The talk indicator on the screen should momentarily turn green, and the text "Now Recording..." should appear in yellow. In addition, the Mic Level indicator should move at least to the 6th bar. If the talk indicator on the screen does not briefly turn green, then check the wiring from the TALK button to the navigation unit. If there is no "Mic Level" movement when you speak, then you should check the wire running from the microphone to the control unit.
- Press the BACK button on the steering wheel. The Cancel indicator should turn green momentarily. If it does not briefly change to green, then check the wiring from the steering wheel BACK button to the navigation unit.
Save Users Memory
When replacing the navigation unit, this function allows the dealer to transfer the client's personal data to the new navigation unit. The transferred information includes their Setup settings, and personal addresses. The dealer inserts a PC card to the navigation unit, and then selects the "Save Users Memory" function. The two functions in this diagnostic screen are EXPORT and IMPORT. EXPORT saves the client's data to the PC card, and IMPORT moves the PC card files to the new navigation unit.
Before starting this function, see the PC Card FAQs for information regarding PC cards, and the use of this function.
1. Select EXPORT button to move the client's data from the original navigation unit 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 files on the card.
NOTE: If the EXPORT button is grayed out, check the PC card's edge connector, and the pins inside the navigation unit (with a flashlight) for damage.
2. After installing the client's original DVD in the new navigation unit, allow the system to boot up. Insert the PC card in the new navigation unit and enter the "Save Users Memory" in the navigation system diagnostic mode.
3. Select IMPORT button to move the two files stored by the Export process from the PC card to the new navigation unit. Select "YES" on the "Import User Data" Confirmation screen. 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.
NOTE: If the IMPORT button is grayed out, check if the "Model" and the "Program Flash" show on the "Version" screen are the same.
PC Card FAQs
PC Card FAQs (Part 1):
PC Card FAQs (Part 2):
Solar Angle
This screen graphically displays the sun's position as determined by GPS. The climate control system uses the navigation systems sun angle, along with the sunlight sensor to control the driver/passenger A/C air flow. The heat that the climate control unit removes varies, depending on the angle of the sun entering the vehicle. This screen is for factory use only, and should not be adjusted.
- The screen shows a circular diagram of the sky oriented in the direction that the vehicle is pointing. During daylight hours a red dot is shown, representing the direction and elevation of the sun. The outer circle represents the horizon (0 degrees elevation). The middle circle is 30 degrees, the center circle is 60 degrees, and the very center is directly overhead (90 degrees).
- "Manual Tuning" should always be OFF (yellow).
- The "Angle", "Dir", and "Reliability" settings are used by the factory to simulate the sun's position for debugging this function.
Version
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.
- Program Flash is the version of the navigation program in memory.
- Program Disc is the version of the program on the DVD.
- The Values "IPL", "APL", "DBOOT", and "System uCom" are for factory use.
- The value for "Models" should begin with the letters "SECX", and indicates that the navigation unit is for a TSX. If any other letters appear after "Models", then verify the part number on the underside of the navigation unit, and replace the navigation unit if necessary.
- "Download" should never be touched unless instructed by the factory. Touching download overwrites the navigation software version in memory, with the software version on the DVD.
NOTE: If any model number other than SECX is displayed, replace the navigation unit with the correct part. The model code tells the navigation unit what software to load off the DVD.
Error Message Table
Error Message Table:
