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CBRacerX's Avatar
 
Join Date: May 2002
Location: New Hope, PA - USA
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Porsche Crest 993 Cabriolet Control Unit Location?

I am ready to replace this, but none of my docs tells me where to find it! Anyone know?
Thanks!
Chris

Old 01-30-2006, 10:22 AM
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Location: Chicago, IL
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It's mounted to the underside of the dash in the driver's side footwell. Before you drop $300-$400 on a replacement unit, I suggest grabbing a soldering iron and simply touching up any joints that look a little funny, like a hairline ring around them. It worked for me and for some others who have posted about this on Rennlist
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1995 993 C2, speed yellow. Protomotive Stage 1 twin turbo. JRZs, RS parts, DL1 logger, etc.
Old 01-30-2006, 10:25 AM
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Thanks Eric, I just took a look in that location and the unit wasn't obvious. It is buried back there?
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Chris

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‘07 GT3, '80 SC Weissach (For SALE), '01 986S, '11 958S, '18 Stelvio, '18 Dursoduro 900
Old 01-30-2006, 10:47 AM
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Oddly enough, I have 993.641.330.00 under the dash, which is the control unit for a targa... No, I don't have a targa - but in PET it appers to show that you have either 993.618.313 (as part 5) or another control unit (shown as 5a in the diagram) if you are not in a cabrio.
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Chris

https://dergarage.com

‘07 GT3, '80 SC Weissach (For SALE), '01 986S, '11 958S, '18 Stelvio, '18 Dursoduro 900
Old 01-30-2006, 10:52 AM
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Here is the PET section...



I have line 5A in the car, but I was expecting 5...
Old 01-30-2006, 10:55 AM
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I'm not familiar with the 993, but on my 86, it is mounted on the backside of the passenger side plywood floor.

Tim
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Old 01-30-2006, 12:11 PM
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I got it out and took a look inside it. Found one questionable bridge on the PC board and fixed that - but the top still would not operate. Replaced with my new ebay controller and the top is working.

I'll keep the original for now on the shelf. But I needed to get this working to sell the car.

Whew!
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1987 911 w/3.6
1996 993 Cab
1994 Jeep XJ Dog Hauler
2003 Toy LC Baby Hauler
1988 Ducati Paso 750
Trek Y-33

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Chris

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‘07 GT3, '80 SC Weissach (For SALE), '01 986S, '11 958S, '18 Stelvio, '18 Dursoduro 900
Old 01-30-2006, 12:19 PM
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