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Your SI batteries may have gone dead.... (archive)

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Posted by Ron ///Man on April 15, 2002 at 15:46:22:

In Reply to: Rev Counter not working posted by Phil (UK) on April 15, 2002 at 12:34:04:


Had some work done on my '88 M3 and on it's return the rev counter didn't work... and still doesn't. Anyone know what fuse/relay I should be looking at, as I'm struggling to find a wiring diagram..

Alternatively, can I download a wiring diagram anywhere or purchase one in the UK?

cheers

pc

Phil:

Your SI batteries may have gone dead... when they do, sometimes the tach and/or the temp guage may not work properly, or may not work at all. If the car sat for a long peroid of time with the main battery discharging, your SI batteries may go deadesp if they are old.

Ron ///Man



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