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scanner-1 last won the day on February 5 2019

scanner-1 had the most liked content!

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About scanner-1

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    Contributing Member

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  • From
    South Bend
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2013 Cayenne Diesel
    2011 Cayenne Turbo
    2003 Boxster

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  1. **Bonus repair** After accomplishing "Vehicle Handover", 2 longstanding issues with my PCM were cured also! 1. When playing music via Bluetooth there would be a dropout on a semi regular interval. and 2. When manually advancing a music track on the USB input, the display would not immediately cycle to the next song--sometimes not until the next song automatically sequenced would the display catch up to the actual song playing. All in all, this turned one problem into three repairs. My recommendation for ANY PCM problem is accomplish the Vehicle Handover.
  2. My 2011 CTT with PCM v2.4.7 had the same issue recently. I messed with it for a couple days, charged battery, checked fuzes, checked/cleared scan codes, removed phone data, removed phones, tried Factory Reset, tried some percussive maintenance, then finally tried the only thing that worked--Vehicle Handover. One day later, up pops your post! I can confirm this works. It is a minor pain to reinput all your settings, but sure beats the continual 2 minute reboot merry go round. Thanks Mattski
  3. From the subject title, I thought that your car was randomly starting itself-haha! I would check the condition of the battery as well. I have the exact same vehicle and have found that the world turns wonky when the battery is in anything other than excellent condition.
  4. Not sure, I don't have that engine, but it shouldn't be too hard to track coolant hoses around yours?
  5. Did you get anywhere with this? Maybe these electrical diagrams will help. Cay--LevelControlCircuit.pdf Cay-PowerDistribution.pdf
  6. My 2011 Turbo had an intermittent brake light. Dealer troubleshot it to be an overheating LED(s). Had to replace the entire light assembly! $750 if I remember right--OUCH!
  7. Found some wiring diagrams relating to the 12V outlets (AKA Cigar Lighter!) CigarLighterPages.pdf
  8. Haha JFP--as I was writing my response, I couldn't help but think "wow, somebody actually likes that start/stop feature!"
  9. Have you eliminated these possibilities from the manual? I know all sorts of things got funky on mine when it had a weak battery. Page: 153 The Auto Start Stop function is available with limited functionality in the following situations, for example: – If the air conditioning or passenger compartment heating is operated at a high setting or if the defrost function is run for long time periods. – If the battery charging condition is low. – On upward or downward slopes. – During internal vehicle test procedures, e.g. automatic engine checks.
  10. Almost definitely a clogged AC evaporator drain--I've had this occur on my 2011 Turbo as well. Loosen the spring clamp holding the rubber drain boot onto the evaporator and be ready for some water as you disconnect the boot from the evaporator. Once the evaporator drains, blow compressed air into the boot and through the firewall--this should free your clog. While you're down there, you might want to change out your cabin air filter--actually, anytime I replace my cabin air filter, I now blow compressed air through the drain as a preventative measure.
  11. Found this while out searching for something completely different. Not sure when Porsche Gen3 TPM started, but this exactly describes the system on my 2011 and 2013. The 3rd generation TPM system operates on the principle of unidirectional communication between the wheel electronics and control unit. This means that the wheel electronics can communicate with the control unit, but the control unit cannot communicate with the wheel electronics. The wheel electronics units send the currently measured tyre pressure, the direction of rotation, the temperature of the air in the t
  12. Is it possible it's just the PSM in combination with driving style (and differing thresholds based on sport/normal)? The brakes on my 2011 CTT are noticeably different depending on how I drive--there was that ONE time I drove nice and easy in normal mode on the way to church, haha! from the manual pg 190: Examples of PSM control operations – Brake system prefilling: The brake system is prepared for possible subsequent emergency braking if the accelerator pedal is released suddenly and quickly. The brake system is prefilled and the brake pads are already app
  13. That I can't be sure of; however, my wife's 2013 Diesel works the same way--I'm guessing it's Porsche standard.
  14. No programing required. I just cycled through the appropriate entries in the Tire Pressure section of the Multi-Purpose Display, then after a couple minutes of driving, ops normal.
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