Hi guys

Spoiler stopped working on my 2005 roader this weekend which also stopped the roof from working.

I removed boot covering to access motor a started playing. I removed a plug which I think is the limiter switch plug (small black 3 wire to the right of the blue power) and the spoiler now works off the dash switch but still opens on its own, which makes me think the car believes its travelling in excess of 62mph.
So not motor or dash switch.
Also cruise control works so maybe not "speed sensor"
Even when spoiler is down roof won't work.
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Please help

 

Some of the symptoms you describe have oftentimes been associated with an old or weak battery.