Recently started having several sudden issues.

Getting headlight messages on startup and the pcm (radio/nav headunit) is blinking on and off and is unusable)

I just bought the Icarsoft porII to reset the oil service reminder and pulled the porsche codes and heres the very long list.

1305 Can infotainment
1299 diagnostic interface data bus
0908 wiper motor (with control module)
1459 PCM2
15582 headlight control unit
15583 headlight control unit
1520 rain sensor/light
1117 Load sensor, generator terminal DF
0978 Left dipped headlamp (this is the one of the messages i am getting on the car display)
1748 tiptronic switch on steering wheel up
1749 tiptronic switch on steering wheel down
0466 steering column switch (with electronic unit)
0466 KESSY control module (CAN comfort)
0774 vehicle level sensor rear left
0776 vehicle level sensor front left
0778 steering angle sensor
0469 CAN infotainment single wire operation
15584 Vehicle identification diff vin
15587 gas discharge lamp xenon

also had two evap codes and a catalyst warmup code but didnt write those down before clearing them.


so where to start?

2008 cayenne s 101K miles

thanks in advance

 

Check out the battery first. A battery running low can cause ALL sorts of issues. Also check to see if you have a 2nd battery in the back. Some cars do and some don't.

 

ill check the battery. I have not noticed any slow cranking issues, and voltage is reading 13.9 ish volts at idle.

i cleared many of these yesterday and checked them a while ago after my wife has driven 10 miles or so and many have not come back.

I am still getting the headlight load sensors, etc... and the PCM is still blinking on and off.

 

Take it in and get it load tested. It may not be the culprit, but if it is will be a much easier fix than pretty much anything else that could be causing the issues.

 

will take care of that this weekend and report back.

 

I would also suggest taking a look at the Battery

 

so i have an update.

i replaced the battery yesterday and went ahead and pulled the headlight assemblies. i changed the drivers bulb (nonfunctioning) and it still didnt work.

I was going to switch the ballast/control module and when i removed the drivers side it was full of water. I mean the control module/ballast was literally filled with water.

So i have ordered a new one and will be cleaning the female pin connectors in the headlight assembly as they look crummy.

Recently one of the symptoms was that the windshield wipers quit...
could the connection/control module issue in the headlight assembly affect the windshield wipers?