P1400 - control position not adjustable

[kszef]

Hi Guys,

 

I am owner of Cayenne S 03'. From few days an error message pops-up on car display "Air suspension warrning". I connected it to the computer and it is shown as P1400 - control position not adjustable.

 

My observation are the following:

1.There is no problem with going for higher position (for example from normal to terrain).

2. There is no error while I am riding on terrain level and not exceeding a speed which is lowering the car. After exceeding this speed car is starting to go down and error pop-ups.

3. Error is shown only while lowering the car.

4. Front suspension is lowering without any problem, it applies only for rear.

5. When error pop-ups I can see that front suspension is much lower then rear.

6. It only only applies to front/rear relation. I can not see any difference between right/left.

 

Local workshop pointed it as a compressor problem, but in my opinion it is rather some kind of valve responsible for releasing the pressure then compressor, as I can not see problems with getting car higher. Just with going for lower position.

 

I will be very thankfull for your opinion as a specialists, as nearest Porsche dedicated workshop is like 300km from the place where I live.

 

Thanks!

[JFP in PA]

Hi Guys,

 

I am owner of Cayenne S 03'. From few days an error message pops-up on car display "Air suspension warrning". I connected it to the computer and it is shown as P1400 - control position not adjustable.

 

My observation are the following:

1.There is no problem with going for higher position (for example from normal to terrain).

2. There is no error while I am riding on terrain level and not exceeding a speed which is lowering the car. After exceeding this speed car is starting to go down and error pop-ups.

3. Error is shown only while lowering the car.

4. Front suspension is lowering without any problem, it applies only for rear.

5. When error pop-ups I can see that front suspension is much lower then rear.

6. It only only applies to front/rear relation. I can not see any difference between right/left.

 

Local workshop pointed it as a compressor problem, but in my opinion it is rather some kind of valve responsible for releasing the pressure then compressor, as I can not see problems with getting car higher. Just with going for lower position.

 

I will be very thankfull for your opinion as a specialists, as nearest Porsche dedicated workshop is like 300km from the place where I live.

 

Thanks!

 

Welcome to RennTech :welcome:

 

Fault code P1400:

 

Control position not adjustable Possible cause of fault - Control position not adjustable, vehicle too low or too high (no display)

 

1. Check mechanical and pneumatic components - replace damaged parts.

2. Check to see if other faults are recorded (e.g. 0774, 0775, 0776, 1780). Clear as needed.

3. Re-calibrate level control module.