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By Nick Radloff
Hello. This is my first time posting as this is my first issue with my 2006 Cayenne S and this is also my first Porsche. The vehicle had an aftermarket radio in it when I purchased it and I changed that radio for another one that supported Apple CarPlay. both units are made by pioneer and after looking at the backs of them it appears to be plug and play. I changed everything out and fired it up and everything was great. No issues or errors and the sound worked fine and calls worked fine. The previous installer used only twisted ends and electrical tape to secure the wiring so I took the wiring apart and used wire nuts to make sure nothing came apart while it was being installed and for longevity. After starting the car back up, I received a brake proportioning fault and an oil pressure fault and it told me workshop fault as well. I pulled fuse 40 as I heard it resets the system and plugged it back in. The brake proportioning fault is gone but the oil pressure fault remains. I double checked my wiring work to make sure that I was not missing anything and nothing had come back apart. Everything is indeed attached and plugged in.
Now that I have finished my long-winded story, was this fault caused because I knocked something loose or because I left the fiber optic cabling unplugged for too long. I noticed that there was a red light coming from the input and of the fiber optic cabling a couple of times while I was rewiring it. Do I just need to reset this system using a better method or do you think something is wrong with it?
Any help would be appreciated and I intend on donating to this forum and website as it seems to be a true source of knowledge and help for the DIY Porsche enthusiast. Thank you in advance and I look forward to your responses.
Yesterday, when I returned from a drive of about 30 minutes, I saw the Four Wheel Drive system Faulty message on the display. After about couple of hours, I started the car and the warning showed up again. I took it for a 5 minute drive, turned off, restarted it and the warning showed up again, decided to drive it back home, but it was a bit jerky when it started moving from rest and then gave PSM failure warning and then Lock overloaded warning. Was able to drive it home without any more jerkiness.
I doubt that it is battery related but will have it checked.
One thing I noticed is that the front tires are worn from sides only as the front LCA need to be replaced. Could these cause these warnings? Or is something else going on?
Odd one for the group here:
I have a 2004 Turbo Cab (manual) with X50 that I have owned since early 2010 and put around 30K miles on in that time (Bought with ~20k miles). I recently found a 2004 Turbo Cab (Tiptronic) with ~29,000 miles that was such a good deal that my parents purchased it. I drove the thing recently while visiting and a couple times in constant-radius turns on back roads, the PSM intervened out of nowhere (The first time it happened I actually thought I hit a shift button with my thumb and downshifted mid corner). Anyway, I got it to intervene once more in a pretty benign turn. There certainly wasn't 7 degrees of slip angle and I have to push my own car much harder (read: screw up the corner entry) to get PSM to intervene. I guess my question(s) is/are this: Is there a difference in the PSM software between the Tiptronic cars and Manual?, a malfunction in the Tip?
Very interested to hear the responses. Thanks
hey guys , past couple months my cayenne s 04 air suspension warning light has been on, after a minute of driving. when i try lowing or raising the vehicle, the front end works fine but the rear suspension stay stationery in raise mode. even when using the diagnostic to force the rear to lower nothing happens .fault codes in the level control system was for rear suspension holding valve . so i went ahead and replaced both rear holding valve and recalibrate the suspension. it worked fine for two months .now the warning light is back the rear suspension is stuck in high and not lowing.
new fault codes p1780 , 1400
im unsure what to do. do i replace the valve again or is there some else wrong
what do you guys think?
I was troubleshooting code P2189, undo some vacuum line to test for leaks ... this is a different issue all together. I mentioned it because I unhooked vacuum lines. I reconnected everything (hoses), I did not start the engine because I was still working on it. My engine was running fine for weeks even with P2189 - not rough like some mentioned!
Two days later, In the morning, I used the car to do errands, I drove for about 10 minutes. At the stop sign, I stepped on the brake, the car won't stop like it used to! It rolled slowly and then stopped. It's like taking a much much longer distant to stop. I did not see anything abnormal on the dashboard except for the CE for the P2189 code! no smell of anything. I continued to drive the car at the normal speed (35 mile/hr) but kept a large distance from the car in front. About 10 minutes later, the brake felt normal like nothing had happened. I drove for another 10 minutes to reach my destination. 2 hours later, jumped in the car to drive home, the brakes felt normal. About 2 minutes the PSM light came on, brakes are still OK. 5 minutes later I pulled into the bank, turned off the engine for couple minutes then restarted the engine, the PSM light is OFF, the brake is normal... I drove home.
Now, where do I start troubleshoot the brakes and the PSM light? I don't have the Durametric tool. Or must I have the Durametric to troubleshoot? can I rent one from someone?
Your help is needed.
Thank you in advance for your assistance.