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I drove my 2007 CS last weekend, hit 2,800 miles, put it away and haven't touched it in 5 days. This evening I was about to go out for a drive when, as pulling out of my driveway I noted the analog gauges on the instrument panel were dead. Everything else seems to be working including the trip computer, TPMS, etc. The digital speedometer reads "0" at any speed but the odometer still works. The panel is getting power because it illuminates with the headlights but none of the analog gauges work, so I have no functioning tach, speedo, gas or temp gauge.
I drove a block then went back to the driveway to investigate. (Hey, the Borla drone helped here, I know that in 2nd gear when I hear the drone I'm doing around 25 mph ) I checked the fuses and the IP fuse was fine (B1, right? Same as accessory outlet which was powering my V1 fine).
I do have the RemoteKey installed but it's worked fine for months. I've done no mods to the car recently. It has been warmer and more humid this week than recently if that might matter. Help, any suggestions before I head to a dealer to investigate?
Thanks!
Mods4Cars
Mods4cars was founded in 2002 with the idea to add a highly demanded feature to the otherwise almost perfect Porsche Boxster: Comfort One-Touch roof operation while driving at slow speeds. The resulting product offered not only that, but also allowed quick and easy installation by just swapping out a relay box, thus leaving no traces and no permanent changes on the vehicle. The first smartTOP roof controller was born.
Borla
BORLA PERFORMANCE INDUSTRIES is the leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such "concours classics" as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.
TPMS
TPMS - The Tire Pressure Monitoring System provides early warning of any drop in pressure by continuously monitoring the pressure in each tire and alerting you in the onboard computer display in the event of a pressure deficiency. It communicates the exact pressure of each tire and/or their deviation from ideal pressure. This does away with the need for regular air pressure checks at the service station, which often prove highly inconvenient.
I've seen this happen now and again on some of the older Boxsters... try disconnecting your battery for about 5 minutes - that will re-boot everything. If that doesn't work, then take it into the dealer - the large plug that plugs the instrument panel into the dashboard may be loose, or not connected all the way.
brad
__________________
21-year PCA Member
PCA DE Instructor
Brad, thanks for the suggestion, I had considered that too. Unfortunately, I just tried that and no luck. Strangely, my main odometer dropped by 2 miles when I reattached the battery, from 2,801 to 2,799 (?!?) but the trip odometer didn't lose any mileage. It's odd, all of the dash warning lights come on normally at startup (including the low gas and high temp lights) and everything else seems to work. Just no analog indicators and the digital speedo reads zero.
Oh well, off to the dealer I'll go. Unfortunately the service depts are all closed on weekends around here so I can't even schedule it until Monday at earliest. When your CS is your weekend toy in the northeast, each weekend is precious!
__________________ 2007 CS Atlas/Gray (his) Mods: Clear corners, short shift kit, RemoteKey, Borla catback exhaust Also in driveway: 2008 BMW 328xi (hers), 2006 Odyssey EXL-RN (ours)
When your CS is your weekend toy in the northeast, each weekend is precious!
I can relate. I have a sense that many of us share a common bond that we are busy people who greatly value our time off. To see even a few hours of it, let alone a whole weekend lost.. hurts.
I had the same problem that many people have posted about. I hadn't driven my 2006 CS in about 2 weeks. The battery didn't appear to be completely dead, but no start and all the warning lights came on. I jump started the car and took the car out. I only drove about one mile and the car would not go out of 1st gear. Manually or automatic. Warning light "Tiptronic emergency run" is showing. The gear positions on the display panel are blinking. I put the car back in the garage. I haven't seen this problem associated with the battery issues in any posts. Does anybody know of any easy fixes before trip to dealer ?
I dropped it off at the local dealer after-hours last night. They looked at it today and have a new instrument cluster being FedExed to them for delivery tomorrow. They think it's some electronic gremlin and this will be the easiest way to find and hopefuly fix it, rather than trying to eliminate each possible wire or subsystem as the culprit. Fingers crossed!
__________________ 2007 CS Atlas/Gray (his) Mods: Clear corners, short shift kit, RemoteKey, Borla catback exhaust Also in driveway: 2008 BMW 328xi (hers), 2006 Odyssey EXL-RN (ours)
Well, the FedEx package didn't go out as planned Tuesday night but it arrived from Atlanta today at the dealership and they replaced my instrument panel under warranty. They said that fixed the issue, so I arranged for an after-hours pick-up (they locked the key I left them in the car and I used the second key for the first time ever to open it). They didn't have time to write up my work before closing for the day so will be mailing it to me. No charge, but I can't yet tell specifically what was done or what PN's were replaced. The odometer read 2801 now, 3 miles less than when I dropped it off. I assumed the dealer just programmed in the old (or similar) mileage to the new gauge? Or is it stored in some other computer?
More strangeness: When I turned it on, the low-gas warning light was on, the gauge was on empty and a red exclamation mark was lit up inside the tach. The message center said something along the lines of "consider range". I thought this was odd as I had filled it up about 40 miles before leaving the car with the dealer.
Since the dealer was already closed and with possible paranoid visions of techs taking a Ferris Bueller-style test drive before they reset the odometer, I drove across the street to fill up. It took 2.5 gallons before it was full, so no tank-emptying joyrides at least unless they added more gas, but I will give them the benefit of the doubt as they are a Porsche dealership and have frequent access to much more interesting cars than mine. But I now had a new and different gauge issue...
Knowing my tank was now full, I figured I'd just use it over the weekend and take it back in next week if necessary. Slowly, over the next 5 miles home, the gauge crept up, eventually hitting 7/8 before dropping back down to ~3/4 full. The trip computer distance-to-empty increased along with the tank level. Is any of this "normal"? Has anyone heard of this before? Any suggestions? I'll call the dealer tomorrow for their thoughts, too, as I assume they have replaced more IPs than mine.
And why does my German car suddenly think it's British?
Jim Ellis Porsche
Porsche.... The driving experience is utterly unlike any other. When it comes to the finest in workmanship, technology, and exclusivity, there is no competition. Along with our certified sales professionals, we have the most highly trained service technicians in the industry. Most importantly, after 24 years with Porsche, we have a long history of customer loyalty and commitment to customer care that sets us apart from the crowd. We relish selling and servicing one of the most desired brand names in North America, Porsche. We welcome you and we hope you enjoy your visit - virtual or preferably, in person! We look forward to seeing you.
For the sake of completeness, in case anyone else encounters this issue, I thought I'd mention that I called the dealer and they said they could recalibrate the gas gauge again if needed after replacing the cluster.
Instead, I then took off for 2 weeks of vacation. Finally this weekend I ran through most of my last tank of gas. I then filled it up again and the gauge now measures full, so I assume something just needed time to calibrate itself. All is well again in my Cayman world.
__________________ 2007 CS Atlas/Gray (his) Mods: Clear corners, short shift kit, RemoteKey, Borla catback exhaust Also in driveway: 2008 BMW 328xi (hers), 2006 Odyssey EXL-RN (ours)
Until 
) I checked the fuses and the IP fuse was fine (B1, right? Same as accessory outlet which was powering my V1 fine).
Battery issue
before they reset the odometer, I drove across the street to fill up. It took 2.5 gallons before it was full, so no tank-emptying joyrides at least unless they added more gas, but I will give them the benefit of the doubt as they are a Porsche dealership and have frequent access to much more interesting cars than mine. But I now had a new and different gauge issue... 
