Warning Light at 60MPH

[FCorps]

Hello - i have a warning light on my MK4 which comes on at 60mph exactly and has done for years - I remember reading somewhere that this may be due to an active spoiler activating at 60 (which is no longer on the car - it has a fixed spoiler) 

 

I have an electrician coming to look at the car Friday for soe other stuff and I wanted to try and get him on finally fixing this long term annoyance.

 

Does anyone know of a fix/solution to this that I can direct the electrician towards?

 

Thanks

[tayr]

Unplug the active spoiler ecu which is behind the main dash panel - job done

 

Top box in the photo, just leave it unplugged. 

Edited April 19, 2022 by tayr (see edit history)

[FCorps]

Hello,

   Thanks for your reply. I took my dash off today and I do not seem to have that box.  I think I gave the right spot as the brown/orange boxes match the ones in your photo - behind the middle console? I seem to have a big air vent where your boxes are and I could not see those boxes behind unless I need to dig deeper?

 

I searched everywhere behind other parts of the dash and could not see it. Could it be somewhere else?

 

Thanks

 

 

 

 

[tayr]

4 minutes ago, FCorps said:

Hello,

   Thanks for your reply. I took my dash off today and I do not seem to have that box.  I think I gave the right spot as the brown/orange boxes match the ones in your photo - behind the middle console? I seem to have a big air vent where your boxes are and I could not see those boxes behind unless I need to dig deeper?

 

I searched everywhere behind other parts of the dash and could not see it. Could it be somewhere else?

 

Thanks

 

 

 

 

It should be right down the bottom there, right at the back. The very bottom one is ABS I think and the little one on top should be the Spoiler ecu 

 

[FCorps]

Yeah I just do not seem to have that box. I have a black and yellow ABS box and the larger silver box but not the smaller spoiler top box -

 

bit if a mystery as I cannot see anything matching that top box from @tayr s reply anywhere behind the dash.

 

You can see the rail where it might have sat.

 

Is there another way around this warning light?

 

Edited April 22, 2022 by FCorps (see edit history)

[tayr]

hmm ok - maybe it's been removed then. On the main dash panel do you still have your spoiler down button? If so i'd leave that unplugged.

Other than that perhaps it's not the active lip thats causing the light?

[FCorps]

I have no spoiler button as far as I can see.  There is a small round button below the mirror fold switch which was converted into a foglight switch a few years ago but no spoiler button. The spoiler was long gone before I bought it so did not even know they had one.

 

Hmm. I thought that was it! The light comes on at a perfectly reliable 60mph on the dot every time so seemed like the spoiler control would be the culprit