Menu toggle

Dashboard warning lights & Instruments

G

gerryg

New member
Hi. Anyone had experience of all the warning lights plus speedo, tacho, fuel gauge etc not working but the rest of the car functioning as normal?
This happened upon start up the other day.
I checked the footwell fuses and all seemed OK.
Are there any multi plugs or other connectors as prime suspects or is there a known more serious instrument panel malfunction? Are there any more threads on this subject?
Any comments or experiences would be welcome.
Thanks
Gerry

 
Well.
After having been diagnosed from light bulb replacement to complete instrument binnacle failure it was quite simple.
As the whole unit was not working, logically it had to be a primary source of power, an earth or a processor.
There are no processors that singularly run the instruments. All earths looked looked clean and tight. So it had to be power or total instrument failure. All fuses checked OK.
Fuse B10 is the main feed. With the fuses in place I check for 12 volts each side of the fuse. Zero volts? Looking at the wiring diagram B10 is fed from a bridge from B9. No power found on B9. Cleaned up B9.
Eureka! B9 powered B10 and up came the instruments. Problem solved.
It only goes to show even with all the processors and electronics a little bit of basic fault finding can save you an awful lot of time and money.

 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top