456 GT rear spoiler

Weird problem with the rear spoiler on my '94 456, no warning lights flashing or coming on the dash and the spoiler is always in the lowered postion, I have taken the motor off and it rotates when powered from a 12v battery, although it does not stop going round??? I have also tried the diagnostic test as recomended in the wsm and no warnings lights show. Any help thankfully received !!! And yes I have tried searching the site but can find no detail on how the rear spoiler works, i.e. is there a position switch or relay in the motor itself ?? If yes then would changing the motor will fix it ??

Thanks

 

Yes it does give a linear movement, it does this by means of a cam which is integral with the electric motor, so the rotating motor drive connects via the cam to the spoiler lever and pushes it down and up. I'll try to explain the problem more, the 'rear spoiler' light does not come on at all, either at start up or whilst driving. The spoiler is always in the down position. I have checked the spoiler and it moves freely. I have also taken the motor off and connected it to a 12v supply and the motor rotates but it does not stop?? I am wondering if there is some sort of stop switch in the motor body which stops the motor, otherwise the spoiler would just go down then up and then down again, or is it all controlled by an ecu??

 

Hi Bryan,

I do have the owners manual and a wsm, what section in the owners manual is the reset procedure? as the manual is not page numbered as such, it is in sections i.e. F or G then page numbers within each section. Are you referring to the manual knob on the motor that raises the spoiler in case of an emergency?


Ta

 

Bryan

Thanks for that, yes it is the 'in case of emergency' bit at the end of the rear spoiler section. I will try this in the morning as I have not disconnected the battery and raised the spoiler manually via the knob!! in the way suggested in the manual. I know that the ecu resets and does some setup stuff after a battery disconnect so perhaps that is how the system learns where 'spoiler up' is?, as it must have to stop the motor once the spoiler moves to the either the down or up position. I am starting to see how one can develope a love hate relationship with these cars !!!!