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Hodgy · 7th July 2010, 18:09

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Have you gone into service mode and checked all the values?

Maybe your wheel speed sensor signal is at fault, which would stop the nav from knowing the car is actually moving.

If you want to go into the service mode to check things more carefully here's how:

Service mode High line navigation
Service mode is entered by selecting 'SET' on the menu screen and pressing and holding the 'MENU' button for eight seconds. This will display a 'Service mode' menu screen.

Sensor test
Select 'SENSOR CHECK' from the Service Mode menu using the rotary control and press to select. The sensor check screen will be displayed. This screen provides a visual check that all input sensors are operating. The following sensor status is displayed and can be selected using the rotary control to highlight and select the required status:

GYRO: The navigation computer has a Gyro sensor which determines changes of vehicle direction. When the vehicle is driving in a straight line the value shown should remain almost constant. When the vehicle turns to the left the value should decrease and when the vehicle turns to the right the value should increase. The amount of increase or decrease depends on the tightness of the turn.

SP L:/R: Wheel speed sensors used by the ABS system calculate the vehicle speed. When the vehicle is stationary the wheel speed sensor L:/R: fields will show zero. When the car is driven the values should increase in proportion to the vehicle speed. When the vehicle is driven in a straight line, the values should be similar.

DIRECTION A direction sensor determines whether the vehicle is travelling forward or backward. With the vehicle in any forward gear or neutral or 'park' for automatic transmission, the display will show 'FWD'. When reverse gear is engaged the display should show 'BWD'.

GPS The GPS System check displays the number of satellites displayed and the GPS system status. The status is displayed as 01 to 04 and are as follows:

01 (GPS Error) There is a communication error between the GPS receiver and the navigation computer.

02 (Satellite Search) The system is searching for satellites and may indicate a failure of the GPS system. Ensure that the GPS antenna is not covered and check harness connections between the GPS receiver and the antenna.

03 (Satellite Contact) The system is tracking a number of satellites. This message shows that the system is functioning correctly, but there is not enough information to determine the vehicle position. Check that the GPS antenna is not covered in any way. It may take several minutes for the GPS system to locate enough satellites to determine the vehicle position.

04 (Position Known) The system is tracking a number of satellites and has a current fix on the vehicle position. This shows that the system is functioning correctly. Select the return icon using the rotary control and press to select. This will exit the sensor check screen and the
Service Mode menu will appear.

GPS
Select 'GPS' from the Service Mode menu using the rotary control and press to select. The GPS menu has three menu selections available: 'VERSION', 'STATUS' and 'TRACKING INFO'. Use the rotary control to highlight the required menu and press to select.

The 'GPS-VERSION menu will display the following information:
SW VERS: The GPS receiver version number is displayed.
SW DATE: The software date is displayed.
Select the return icon using the rotary control and press to select.

This will exit the GPS Version screen and the GPS menu will appear.
The 'GPS-STATUS' menu will display the following information:
LAT: The current vehicle latitude position is displayed.
LNG: The current vehicle longitude position is displayed.
ALT: The current vehicle altitude is displayed.
DATE: The current date is displayed i.e. 10/02/99.
HEADING: The current vehicle heading is displayed i.e. 150.1°.
G-SPEED: The vehicle speed is displayed i.e. 12.5 m/s.
REC-STAT: The receiver status is displayed. The receiver status will display one of the following messages:

COMERR This denotes that there is a communication error between the GPS receiver and the navigation computer.

SEARCH The system is searching for satellites. This may be a failure of the GPS system. Ensure that the GPS antenna is not covered in any way and check harness connections between the GPS receiver and the GPS antenna.

TRK The system is tracking a number of satellites. The Pos-Src will display the number of satellites the GPS system can see. This message shows that the system is functioning correctly, but there is not enough information to determine the vehicle position. Check that the GPS antenna is not covered in any way. It may take several minutes for the GPS system to locate enough satellites to determine the vehicle position.

POS The system is tracking a number of satellites and has a current fix on the vehicle position. This shows that the system is functioning correctly. The Pos-Src will display the type of position fix (2D or 3D) and the number of satellites the GPS system can see.

TIME: The current time is displayed i.e. 09:12.52.

POS-SRC: The position source is displayed i.e. 150.1°.

PDOP:/HDOP:/VDOP: Three figures are displayed which give the position (P), horizontal (H) and vertical (V) dilution of precision (DOP). This shows the accuracy of the GPS tracking with the lower figure showing a higher accuracy rating.

Select the return icon using the rotary control and press to select. This will exit the GPS status screen and the GPS menu will appear.

The 'GPS-TRACKING INFO' menu will display the following information:
VISIBLE SAT: The display will show the number of visible satellites.
ALMANAC: The display will show 'YES' or 'NO' to show if almanac data is being received.
CH PRN S/N: This display shows the satellite being tracked on each channel and the signal level. The channels correspond to the number of satellites currently visible.

Select the return icon using the rotary control and press to select. This will exit the GPS tracking screen and the GPS menu will appear. Highlighting the return icon and pressing the rotary control will exit the GPS menu and the Service Mode menu will appear.

Service Mode is exited by highlighting the return icon and pressing the rotary control.

7th July 2010, 18:09	#4
Hodgy Love to chat Jaguar XJ Join Date: Dec 2009 Location: Hucknall Posts: 873 Thanks: 39 Thanked 2 Times in 2 Posts	Contact Reebs he's your man Have you gone into service mode and checked all the values? Maybe your wheel speed sensor signal is at fault, which would stop the nav from knowing the car is actually moving. If you want to go into the service mode to check things more carefully here's how: Service mode High line navigation Service mode is entered by selecting 'SET' on the menu screen and pressing and holding the 'MENU' button for eight seconds. This will display a 'Service mode' menu screen. Sensor test Select 'SENSOR CHECK' from the Service Mode menu using the rotary control and press to select. The sensor check screen will be displayed. This screen provides a visual check that all input sensors are operating. The following sensor status is displayed and can be selected using the rotary control to highlight and select the required status: GYRO: The navigation computer has a Gyro sensor which determines changes of vehicle direction. When the vehicle is driving in a straight line the value shown should remain almost constant. When the vehicle turns to the left the value should decrease and when the vehicle turns to the right the value should increase. The amount of increase or decrease depends on the tightness of the turn. SP L:/R: Wheel speed sensors used by the ABS system calculate the vehicle speed. When the vehicle is stationary the wheel speed sensor L:/R: fields will show zero. When the car is driven the values should increase in proportion to the vehicle speed. When the vehicle is driven in a straight line, the values should be similar. DIRECTION A direction sensor determines whether the vehicle is travelling forward or backward. With the vehicle in any forward gear or neutral or 'park' for automatic transmission, the display will show 'FWD'. When reverse gear is engaged the display should show 'BWD'. GPS The GPS System check displays the number of satellites displayed and the GPS system status. The status is displayed as 01 to 04 and are as follows: 01 (GPS Error) There is a communication error between the GPS receiver and the navigation computer. 02 (Satellite Search) The system is searching for satellites and may indicate a failure of the GPS system. Ensure that the GPS antenna is not covered and check harness connections between the GPS receiver and the antenna. 03 (Satellite Contact) The system is tracking a number of satellites. This message shows that the system is functioning correctly, but there is not enough information to determine the vehicle position. Check that the GPS antenna is not covered in any way. It may take several minutes for the GPS system to locate enough satellites to determine the vehicle position. 04 (Position Known) The system is tracking a number of satellites and has a current fix on the vehicle position. This shows that the system is functioning correctly. Select the return icon using the rotary control and press to select. This will exit the sensor check screen and the Service Mode menu will appear. GPS Select 'GPS' from the Service Mode menu using the rotary control and press to select. The GPS menu has three menu selections available: 'VERSION', 'STATUS' and 'TRACKING INFO'. Use the rotary control to highlight the required menu and press to select. The 'GPS-VERSION menu will display the following information: SW VERS: The GPS receiver version number is displayed. SW DATE: The software date is displayed. Select the return icon using the rotary control and press to select. This will exit the GPS Version screen and the GPS menu will appear. The 'GPS-STATUS' menu will display the following information: LAT: The current vehicle latitude position is displayed. LNG: The current vehicle longitude position is displayed. ALT: The current vehicle altitude is displayed. DATE: The current date is displayed i.e. 10/02/99. HEADING: The current vehicle heading is displayed i.e. 150.1°. G-SPEED: The vehicle speed is displayed i.e. 12.5 m/s. REC-STAT: The receiver status is displayed. The receiver status will display one of the following messages: COMERR This denotes that there is a communication error between the GPS receiver and the navigation computer. SEARCH The system is searching for satellites. This may be a failure of the GPS system. Ensure that the GPS antenna is not covered in any way and check harness connections between the GPS receiver and the GPS antenna. TRK The system is tracking a number of satellites. The Pos-Src will display the number of satellites the GPS system can see. This message shows that the system is functioning correctly, but there is not enough information to determine the vehicle position. Check that the GPS antenna is not covered in any way. It may take several minutes for the GPS system to locate enough satellites to determine the vehicle position. POS The system is tracking a number of satellites and has a current fix on the vehicle position. This shows that the system is functioning correctly. The Pos-Src will display the type of position fix (2D or 3D) and the number of satellites the GPS system can see. TIME: The current time is displayed i.e. 09:12.52. POS-SRC: The position source is displayed i.e. 150.1°. PDOP:/HDOP:/VDOP: Three figures are displayed which give the position (P), horizontal (H) and vertical (V) dilution of precision (DOP). This shows the accuracy of the GPS tracking with the lower figure showing a higher accuracy rating. Select the return icon using the rotary control and press to select. This will exit the GPS status screen and the GPS menu will appear. The 'GPS-TRACKING INFO' menu will display the following information: VISIBLE SAT: The display will show the number of visible satellites. ALMANAC: The display will show 'YES' or 'NO' to show if almanac data is being received. CH PRN S/N: This display shows the satellite being tracked on each channel and the signal level. The channels correspond to the number of satellites currently visible. Select the return icon using the rotary control and press to select. This will exit the GPS tracking screen and the GPS menu will appear. Highlighting the return icon and pressing the rotary control will exit the GPS menu and the Service Mode menu will appear. Service Mode is exited by highlighting the return icon and pressing the rotary control. __________________ Regards Hodgy BHP My Newbie [SIGPIC][/SIGPIC]