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Jake
Jake, Automotive Technician
Category: Porsche
Satisfied Customers: 3926
Experience:  Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.
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My cayenne s 20087 vin WP1ZZZ9PZ8LA42182 give me the message

Customer Question

Hi, my cayenne s 20087 vin WP1ZZZ9PZ8LA42182 give me the message steering fault
JA: Have you checked the fluids?
Customer: yes
JA: What year is your Cayenne?
Customer: 2008
JA: Are you fixing your Cayenne yourself? What have you tried so far?
Customer: no, but my brother is a professional mecanich
JA: Anything else you want the mechanic to know before I connect you?
Customer: there is no ignition, no power, just the message
Submitted: 10 months ago.
Category: Porsche
Expert:  Mike S. replied 10 months ago.

Hi, I am Mike, welcome. I'm reviewing your question.

Customer: replied 10 months ago.
thank you
Expert:  Mike S. replied 10 months ago.

That has electronic power steering, so to begin, check that fuse, the fuse #49 in the fuse box under the left side of the dash.

Expert:  Mike S. replied 10 months ago.

Are you saying that also the engine will not start?

Customer: replied 10 months ago.
the engine is locked by the same car,
there is no ignition, just the message "steering fault"
Customer: replied 10 months ago.
the fuse and the relais are ok
Expert:  Mike S. replied 10 months ago.

The engine is locked up?

Customer: replied 10 months ago.
Expert:  Mike S. replied 10 months ago.

Do you mean it is actually locked up (seized) or that it simply will not crank over while using the starter or that it does crank over but doesn't start?

Customer: replied 10 months ago.
there is no power but not for a battery issue, the car receive the message of sttering fault and lock itself
if i put the key lights go on but a part the message nothing happen
Expert:  Mike S. replied 10 months ago.

When you turn the ignition key to start, does the starter crank the engine over, yes or no?

Customer: replied 10 months ago.
no
Expert:  Mike S. replied 10 months ago.

Ok, great. Now when you turn the key to start, can you hear a click sound or clicking sound?

Expert:  Mike S. replied 10 months ago.

If your answer is no turn on your headlights and go out and tell me if they come on and if they are bright, dim or out?

Customer: replied 10 months ago.
ok just give me one minute
Expert:  Mike S. replied 10 months ago.

ok

Customer: replied 10 months ago.
bright
Expert:  Mike S. replied 10 months ago.

Ok, leave the headlights on and also turn on the dome light so you can watch the dome light as you turn the key to start. now turn the key to start and let me know if you hear any click or clicking and also what that dome light does. It will do one of 4 things, 1 is just stay bright, 2 is dim heavy but still stay on, 3 is go out completely and 4 is dim slightly. What does it do and do you also hear a click or clicking?

Customer: replied 10 months ago.
ok
1 minute
Expert:  Mike S. replied 10 months ago.

ok

Customer: replied 10 months ago.
i can listen a click, and everything os on and bright
Expert:  Mike S. replied 10 months ago.

Ok, great now what did that dome light do when you turned the key to start? remember I said it will do one of 4 things.

Customer: replied 10 months ago.
stay bright
Expert:  Mike S. replied 10 months ago.

Ok, stay bright and also a click. That tells me although the starter relay is most likely what is working that 1/ of it is working so it must be the other side. One second while I look at which fuse to check.

Customer: replied 10 months ago.
ok
Expert:  Mike S. replied 10 months ago.

Do you know what engine is in this?

Customer: replied 10 months ago.
4.8 gasoline
Customer: replied 10 months ago.
is the cayenne S 2008
Expert:  Mike S. replied 10 months ago.

Great, check the fuse Z1 in the main fuse block, it's a 250a (amp) fuse.

Customer: replied 10 months ago.
give me a minute
Expert:  Mike S. replied 10 months ago.

ok

Customer: replied 10 months ago.
fuse is ok
Expert:  Mike S. replied 10 months ago.

Ok, there are more to check. here is the wiring diagram just for reference.

I have to ask, do you have a voltmeter or 12 volt test light?

Also, can you put your finger tips on that starter relay and feel if it is what is clicking when the key is turned to start?

Now, for the next fuse to check, the fuse #7 in the main fuse box.

Customer: replied 10 months ago.
the problem is that show a fault message
the message says steering fault. i parked the car and when i try to restart was not possible and appears the message. This message appears when i open the door, before i insert the key.
Expert:  Mike S. replied 10 months ago.

Yeah, I know that but it appears you have other problems and I am just trying to get the engine to start first.

Customer: replied 10 months ago.
There is no way
Expert:  Mike S. replied 10 months ago.

What?

Customer: replied 10 months ago.
There is no way to start the engine
Expert:  Mike S. replied 10 months ago.

Why not?

Customer: replied 10 months ago.
There is no ignition, I get a message, steering faulty, nothing more
Expert:  Mike S. replied 10 months ago.

No starter working either which was what I was trying to figure out. Why did you quit?

Customer: replied 10 months ago.
I Don t quit
Customer: replied 10 months ago.
I m just telling you how is the situation, I M sorry I m a little frustrated
Expert:  Mike S. replied 10 months ago.

Ok, then where were we?

Oh yeah, how was that fuse #7 in the main fuse box.

Also, can you put your finger tips on that starter relay and feel if it is what is clicking when the key is turned to start?

I have to ask, do you have a voltmeter or 12 volt test light?

Expert:  Mike S. replied 10 months ago.

I understand.

Customer: replied 10 months ago.
Look my brother is a professional mechanic and he checked the car. He told me that it s not an electric problem. The fuses and relays are all ok
Customer: replied 10 months ago.
Seems that it s a problem with the steering column
Customer: replied 10 months ago.
Or the sensor
Expert:  Mike S. replied 10 months ago.

What? I thought the starter would not crank the engine over?

Expert:  Mike S. replied 10 months ago.

A problem with the steering should not prevent the starter from working and the engine from running.

Expert:  Mike S. replied 10 months ago.

I am just going to opt out cause I am having a problem understanding the symptoms.

Customer: replied 10 months ago.
Ok
Expert:  Jake replied 10 months ago.

I guess Mike wasn't aware that Porsche uses an electronic steering lock assembly as part of the anti theft system. I know multiple manufacturers who use a similar electronic lock as well.

First thing to do would be to attempt to turn the steering wheel left or right to see if it clears. If it does clear make sure not to turn the vehicle back off until your at the garage/dealer that you use as it very well may not start again.

Second thing to consider is the battery, a bad battery will cause steering fault faults like you mention.

If the battery is not suspect then it more than likely is the electronic column assembly which can be a bit pricey depending on options (memory etc)