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Originally Posted by denverpete
I have this problem as well - but the spoiler does actually raise and lower (you'll have to have someone follow you - or be really bendy - to see). With mine, once the spoiler activates the light turns on. That light says one of two things, either it didn't raise or it didn't raise fully.
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Hi,
That light simply indicates a malfunction, two of which are the ones you mention. A third possibility is
speed calibration.
The DME needs to know
when to raise and lower the spoiler. This means that it needs to know how fast the car is going. To insure that the spoiler doesn't fail to rise at 75MPH (creating an unsafe condition which the Driver is unaware of), the DME re-calibrates itself on each startup. This why the dash light comes on to indicate a speed fault. Only once the car has attained 3MPH is the DME capable of doing the calibration. Once it's satisfied that it is properly calibrated, the light goes out.
But, if say you were to lose a Speed Sensor, or some debris clipped the wire, or such that the DME was no longer receiving a signal from the Speed Sensors, the dash light would come on to alert the driver of the system fault so as not to exceed 75MPH until the fault is isolated and corrected...
Happy Motoring!... Jim'99