Bill Mc 1989 E30

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BillMc
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Post Thu Sep 03, 2020 3:59 pm

My speedo has stopped working, the mileage and trip meters are both working could the speedo sensor or the wiring connector still be at fault
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flybynite
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Post Thu Sep 03, 2020 4:22 pm

This thread:

viewtopic.php?t=280053

Has a good discussion about speedo diagnosis
BillMc
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Post Fri Sep 04, 2020 10:13 am

Have you any ideas on diagnosis
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flybynite
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Post Fri Sep 04, 2020 12:09 pm

BillMc wrote:
Fri Sep 04, 2020 10:13 am
Have you any ideas on diagnosis
Did you read that thread?

Personally I would
Check the wires for obvious breaks around the diff
Check the diff output signal, first at the diff then at the back of the dash.
If the signal is getting to the plug at the back of the dash OK then check the instrument cluster for solder issues
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Brianmoooore
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Post Fri Sep 04, 2020 3:03 pm

If the odometer and trip are still working, the problem is confined to part of the speedo assembly itself. Nothing wrong with the diff. sender, the plug or the wiring.
minesapint
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Post Fri Sep 04, 2020 10:50 pm

Brianmoooore wrote:
Fri Sep 04, 2020 3:03 pm
If the odometer and trip are still working, the problem is confined to part of the speedo assembly itself. Nothing wrong with the diff. sender, the plug or the wiring.
As Brian said..................now take out the instrument cluster
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BillMc
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Post Sat Sep 05, 2020 11:22 am

Thanks guys for the help