Spoiler Malfunction CEL

[eicheldp]

Hi all,
I've been searching the forums, but I haven't found anything yet that might help me solve my situation.

The last two times I've had my 04S out on the road, when I get up to speed, the spoiler CEL goes on and stays lit until the car is shut off. The spoiler does extend and retract when using the manual switch, so I don't think it's the motor.

Any ideas on what could be causing this fault?

Thanks in advance.