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Newbie with PCM problem saying hello...

din888
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din888 Member

din888

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Posted

Hi there! Congrats for collectively succeeding in making this forum a great resource to all enthusisasts :) I have been a contributing member since Dec 2008 and had extensively used this forum to research the Cayenne before getting one last week. Finally....got myself an 04 Cayenne S. I gather from this forum that it's best to get an 05 onwards...but I bumped into an 04 CS with full leather dashboard, bi-xenon, PCM, multi-function steering, parktronic, multi-function steering, inflatable spare tyre, parktronic, sunroof and thought I'd enjoy better a higher specd than a younger car!

Anyway, despite sending the car to a Porsche specilalist for a PIWIS inspection (and gotten thumbs up!), I soon discover I have a couple of problems I need help with:

1. PCM - after setting the time say to 1625 hrs, the clock on the PCM does not "tick" i.e. time is frozen. It will synchronise (in the first minute or so) with the clock on the dash....but nothing happens after. The clock on the dash will continue to work while you drive (say till 1700hrs) but once the ignition is off, the clock will go back to the earlier reset time of 1625 hrs. Seems my car was installed with PCM 2 and Software 2. Some say I need to install Software 3 and that will solve the problem. The PCM also prompts me to insert the CD when I press the "Navi" button...does this mean this car has Sat Nav?

2. Airbag Fault Warning - the light is on now.

3. Water hose for the rear wash-wipe is leaking (didn't check this one prior to purchase). Not sure where the weak point is, but my interior headlining is now wet! Seems this is a common problem on 03/04 cars.

4. Odometer - the odometer cannot be reset to "zero". Not sure if this failure has anything to do with the clock not functioning well.

I also gather that it could be a simple matter of installing a new battery to eliminate all these "malfunctions". Whatever it is, I am new to this and I greatly appreciate your help in sorting this out. Many thanks!

cheers

DIN888

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