System description: Diagnosis
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
The following components are monitored by the system:
- Lumbar pressure sensor (regulating switch)
- Potentiometer voltage of both rearview mirrors
- Hall-effect sensor for backrest adjustment
- Hall-effect sensor for fore-and-aft adjustment
- Hall-effect sensor for height adjustment
- Functioning of the control module (EPROM, A/D converter, main relay)
- Switch for memory seat adjustment and switch for seat adjustment
When the switch for memory seat adjustment or the switch for seat adjustment are actuated, the faulty component is stored in the fault memory. In this case the word present also appears on the screen, for example:
"Open circuit present in Hall-effect sensor for fore-and-aft adjustment "
If the cause of the fault is eliminated, then the switch for memory seat adjustment or the switch for seat adjustment must be actuated again. If the cause of the fault has really been eliminated, the text in the fault memory changes from present to not present.
NOTE: The fault memory must always be read out and any faults which may have been stored must always be deleted after diagnosis.