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Old 3rd September 2012, 13:08   #1
al_dente
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Default Highline sat nav problem

My new Tourer has sat navigation, however it doesn't seem to work.

As well as not seeming to be able to navigate anywhere, it doesn't show any maps and also, I think the GPS may be faulty. For instance, going up the M5 on Saturday, it wasn't displaying any roads and also though I was going south east, when I was heading north.

Just wondering if this is a common fault and whether there's a 'how to' to fix it?
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Old 3rd September 2012, 13:11   #2
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Default hiline Sat Nav

A common cause of problems is that the sat nav unit gets water damage from a leak in the boot.
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Old 3rd September 2012, 13:15   #3
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Ah - so it could be stuffed then.

Are the sat navs any good? I imagine they're quite dated now, so was wondering if its worth repairing.
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Old 3rd September 2012, 13:18   #4
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Default Sat nav

I used the original Hiline type for nearly 5 years and it always got me to where I wanted to go but, i never look at the screen, I just follow the spoken instructions. I now have one of Seans DD units which is brilliant. I sold the original sat nav unit for £30 delivered so they should be cheap enough if you find it is knackered.
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Old 3rd September 2012, 15:24   #5
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Right, a second hand navigation computer will usually set you back between £50 - £80 on ebay, but assuming you get some sort of image displayed on the screen when you select map, the most likely fault (as has been experienced by several forum members with tourers) is a failure of the roof mounted shark's fin.


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.

Removal of the shark's fin is as follows



It worked for member GordZTT a while back see here

http://www.the75andztclub.co.uk/foru...82&postcount=5


Thread moved to the ICE - Factory Fit Sat Nav section BTW
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Old 3rd September 2012, 21:03   #6
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Thanks Reebs

It doesn't seem to be seeing any satellites, so I'll have a look at the antenna as you suggest.

Al
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Old 3rd September 2012, 21:08   #7
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On reflection, I might just leave this until the Midlands Nano meet in a couple of weeks.

I guess I could swap in someone else's unit and see if it works - that would help - prove whether its an issue with the shark fin or not I guess?
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Old 3rd September 2012, 21:25   #8
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Just by coincidence I've been looking around for a disc (DVD) upgrade as my boot mounted unit is running a 2005 disc. A few on ebay but they are BMW discs but then again this is supposed to be a BMW setup in the ZT!!

REEBs - just a point of note - what sharks fin??? Mine doesn't have one of these and the sat nav works fine. Am I missing something here or is this only ZT-T's???

Last edited by denis; 3rd September 2012 at 21:42..
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Old 3rd September 2012, 22:30   #9
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Quote:
Originally Posted by denis View Post
REEBs - just a point of note - what sharks fin??? Mine doesn't have one of these and the sat nav works fine. Am I missing something here or is this only ZT-T's???
Yep, the 75 and ZT saloons have their GPS Antenna hidden underneath the rear parcel shelf out of view (and protected from the elements), the tourer derivatives have their antenna on the roof a-la BMW, so are prone to water ingress and general battering through car washes etc
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