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No speedo 4 years 8 months ago #190949

Hi. I bought a 2005 TF a few weeks ago. The speedometer doesn't work and the epas works most of the time even at high road speeds. Very occasionally it doesn't work at all. I've changed the speedo transducer and swapped out the instrument panel to eliminate the speedo itself with no change. Any clues on where best to start checking for wire breaks, poor earths, bad connectors etc?

Thanks

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No speedo 4 years 8 months ago #190950

Hi and welcome to the forum.

The speedo works on a digital signal from the transducer, the EPAS then gets a feed from the speedo to work.

No speedo normally means a fault in the signal from the transducer but if the EPAS is working and the speedo isn't it suggests a problem with the wiring connection on the speedo.

One last bit of info required, is the milometer working?

James

Home to black Alfa Romeo 159 3.2 V6 Q4 ,green MGF VVC and red MG Maestro T16.

MG - the friendly marque.

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No speedo 4 years 8 months ago #190959

Thanks James. I hadn't noticed whether the milometer was working - I think it is but the tripmeter doesn't seem to be.

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No speedo 4 years 8 months ago #190961

Hi. I bought a 2005 TF a few weeks ago. The speedometer doesn't work and the epas works most of the time even at high road speeds. Very occasionally it doesn't work at all. I've changed the speedo transducer and swapped out the instrument panel to eliminate the speedo itself with no change. Any clues on where best to start checking for wire breaks, poor earths, bad connectors etc?

Thanks

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No speedo 4 years 8 months ago #190962

If it helps there are wiring diagrams in the drop down menu in the community tab at the top of the page.

Home to black Alfa Romeo 159 3.2 V6 Q4 ,green MGF VVC and red MG Maestro T16.

MG - the friendly marque.
The following user(s) said Thank You: SMCC

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No speedo 4 years 7 months ago #191069

Hi again James. No the mileometer is not working. Is that an indication of where to look?
Thanks
Steve C

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No speedo 4 years 7 months ago #191109

I would start by checking the wiring between the transducer and the speedo.

Home to black Alfa Romeo 159 3.2 V6 Q4 ,green MGF VVC and red MG Maestro T16.

MG - the friendly marque.

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No speedo 4 years 7 months ago #191248

Sorted. Broken sensor wire in the engine harness.
The following user(s) said Thank You: talkingcars

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