SRM11

Hi all - finally got my hands on a 964 after a 15 year hiatus from my old 3.2 I had as a kid. The PO has installed a turbo tail style fixed spoiler that I would like to remove and convert back to the original popup spoiler.

I've already purchased the OE grille/surround and a motor/wiring from a different P owner that converted his 964 to a turbolook. There's a gear/shaft mounted on the tail with wiring (round plugs) that I assume will plug into decklid on my car, as well as a small black cylinder motor (spoiler motor?). It all seems to be plug and play on the decklid side.

I don't have a warning light on the dash for the spoiler so it's been bypassed somehow, and obviously the console switch does nothing at this time.

Does anyone have any wiring diagrams or can provide an overview of how this is supposed to operate? I want to make sure I don't need any other parts once I start this retrofit. I did a few searches on here and google but everything I found was the reverse - taking off the OE and installing XYZ tail instead.

Thanks in advance

jwbavalon

Hi, the wiring diagram is in volume 7 of the 964 Workshop Manual.

SRM11

Thank you - is there a place to download these manuals in PDF? Or are they available for sale? I did a quick search but all seemed to be the 'scam' type sites that have 16 different options to click on that go nowhere but ads.

jwbavalon

Hi, sent you a pm.

SRM11

Appreciate it Jwbavalon!


If anyone has any other tips or things I might run into doing this, please let me know.

onceover

The spoiler controller under the passenger seat was likely unplugged to prevent the spoiler light coming on in the clock. I'd check there first.

Foxman

Yup- the spoiler control unit under the dash was also likely disconnected. I may a have an older spare lying around if you need one.

jon91581

Since this is the most recent thread on spoiler problems, I figured I'd ask a question in this thread as it might help re-installing the spoiler functionality.

The car is a 1990 C2. I'm getting a spoiler error light when the car hits the speed where the spoiler is supposed to automatically extend. The manual switch does not work, the microswitches in the spoiler seem to be functioning properly, but I haven't put power to the spoiler motor. When i get stop at an intersection, the light on the dash goes out.

Spoiler was functioning properly most recently about 6 months ago. Has anyone else had these symptoms and fixed the problem? I think that the problem is likely the spoiler control unit under the passenger seat not relaying the appropriate signal to the spoiler motor, but wanted to get input before I dive in.

Thanks for any help!
Jon

SRM11

Is this what you guys are referring to? I found it under the dash.

Under the passenger seat (From what I could see, couldn't get the bolts off without an allen socket for leverage) it shows a factory amp, an alarm module of some sort (factory) and some other silver box that looked factory also.

Foxman