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Toby Pennycuff

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About Toby Pennycuff

  • Rank
    Contributing Member
  • Birthday 08/31/1955

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Profile Fields

  • From
    Dallas, TX
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2004 Crystal Silver Cayenne S
    1979 Petrol Blue 930
    2002 Brilliant Silver Mercedes E320 4MATIC
  • Future cars
    1973 911 Carrera RS Touring
    1997 993 Twin Turbo
    1974 Triumph TR6
  • Former cars
    1974 Speed Yellow Ducktail Carrera
  1. According to the Service Information Technik manual for the Cayenne S and Cayenne Turbo, each wheel has an active speed sensor that feeds information to the PSM control module (pp. 4.69-4.70). "4511 Active Speed Sensor The speed sensors provide information to the PSM control module about wheel speed. The speed sensors on the Cayenne are described as 'active speed sensors.' Active speed sensors require an external power supply. A two-wire cable provides the connection to the control module. The active speed sensor is supplied with power and ground by the PSM control module. Operatio
  2. Oh, it's not possible. It's real. And I called PCNA this morning at 0705 CST. The call center rep was very nice, but had no information about either recall (wiring harness in engine bay or transfer case) yet! Their suggestion was for me to contact my dealer. Toby
  3. Loren, Are part numbers out for the Carrera GT yet? If so, is there a part number assigned to the Becker radio for the C-GT? This would be the Becker Online Pro 7800. Curious about part number, availability in US and projected price. Thanks! Toby
  4. wingless, It's not clear that they are connected (directly) to the CAN-bus. The Technik manual clearly notes a Xenon control unit, but I cannot find any reference in PET to such a control unit. If this control unit does exist, I am guessing that it controls the bending of the headlight beam as you turn, and works in conjunction with the leveling sensors and speed sensors on the vehicle to keep the lights properly leveled. There's no doubt in my mind that the PST2 is required to hook in and update the system to the fact that Bi-Xenons are present. I had to do exactly that on my 03 ML350.
  5. Loren, Did you see my original request on this topic? I still have not been able to find a source that can tell me whether there is a dedicated Xenon control unit on the CAN bus and if so, what its part number is. Do you have any clues on this? Also, have you broken down one of the Bi-Xenon headlight units? I'm curious about two things... 1. Is there a connection from the ballast to the bulb via part 955 631 239 20? I am assuming that the ballast component (955 631 193 00) depicts the two connectors in illustration 905-01 (the left-most in the drawing being the connection from the
  6. Loren, I have scoured my copy of PET and cannot find any specific reference to the Xenon Control Unit. From what I can glean from my "Service Information Technik" manual, the Xenon control unit interfaces on the CAN-bus to help calculate light bending characteristics for the Bi-Xenon headlight unit (page 9.18). The control unit is described in the schematic found on pp. 9.8-9.9. Specifically, the Xenon control unit is depicted as control unit number 12 attached to the CAN drive unit. Since I'm giving serious consideration to trying to do the science project and upgrade my headlights to
  7. Loren, Do you know what kind of control unit this part number is? Thanks. Toby
  8. Kevin, You are correct. You have to remove the lower valence to get at the assemblies for the fog lights. You can probably get at it from under the car, but it's easier to get at them by removing the lower valence. Happy New Year! Toby
  9. Loren, Thanks for the drawings. Do you have the pages that show part numbers ofr items number 16 and 21 on the Bi-Xenon side and item number 17 on the halogen side? These are the pigtails that connect into the wiring harness on the body. Thanks! Toby P.S. - the Bi-Xenon unit price (#1 in the drawing) was quoted by Park Place Porsche-Dallas at $522. Bi-Xenon bulb (#2)= $220. Ballast (#15) = $356. Cable (#21) = $34. Cable (#16) = $34. Yowser! TBP
  10. Thanks Loren. I'm just re-surfacing from having to re-build my machine (computer) all day long. :soapbox: Anyway, I'm just about done, so I will check it out. I also have some pricing for some of the Bi-Xenon parts. It's not cheap........ Thanks again. Toby
  11. Loren (or anyone else), Are you aware of any control unit differences that would prevent me from undertaking the Bi-Xenon upgrade science project? I checked with my dealer, and it looks like you can buy the requisite parts to do the upgrade. What you would likely NOT get out of the upgrade would be the headlight washers and the auto-leveling/light bending features. Neither of these is crucial to me as 1) I keep my light covers clean (avoids the glare problem) and 2) I do not carry heavy loads that change the vehicle's geometry. From the diagrams I saw (without part numbers! :soapbox: )
  12. Loren, Is there any way to tell if a particular TSB should or should not be applied given a VIN? Also, are these TSB's available as addenda to the Factory Service Manuals? Thanks!
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