1999 BMW 328 Mode Selection Switch

1999 BMW 328
72,000 MILES • 6 CYL • 2WD • AUTOMATIC
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THESICILIANSPECIAL
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The Mode Selection Button located on the Turn Signal Lever does not change the Dash Display. Currently the Outside Tempurature is displayed and can be changed from C to F. However pressing the Button in Key positions one or two does not change the display. What could possibly be the root cause of the non working switch.

FYI: In key position 0 and pressing the left instrument button Time is displayed.
Jul 12, 2008 at 1:18 AM
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DOCHAGERTY
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There was a model change in 1999 and I will require the last seven characters of the vehicle identification number to be sure I know what the issue might be, please repost with the requested data.
Jul 12, 2008 at 7:09 AM
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THESICILIANSPECIAL
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the last seven numbers of the VIN are

FR08071
Jul 12, 2008 at 10:10 AM
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DOCHAGERTY
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Thank you for the response. The E-46 body style uses several CAN-BUS systems to convey information, the instrument cluster utilizes what is called a K-Bus and this seems like a low voltage condition on the K-Bus. This I have also seen as an internal fault in the instrument cluster.


https://www.2carpros.com/forum/automotive_pictures/87023_STFU_File_7.jpg


https://www.2carpros.com/forum/automotive_pictures/87023_STFU_File0001_3.jpg


https://www.2carpros.com/forum/automotive_pictures/87023_STFU_File0002_2.jpg

Jul 12, 2008 at 12:50 PM