Porshe 911 (997). Manual - part 679

General warnings for contact unit

ATTENTION

Danger of injury and material damage if airbag units are not handled correctly!

Incorrect triggering of airbag unit!

• 

→ Always observe the safety regulations for handling airbag units! →   Safety regulations for handling airbag

and belt tensioner units

WARNING

If the contact unit has been adjusted, proceed in accordance with the following work instruction:

Damage to the contact unit!

• 

→ To position the airbag contact unit in the central position, press the locking element and turn the rotor

carefully to the left as far as it will go.

→ Then turn the rotor carefully to the right, approx. 3.5 to 3.75 revolutions, until the band printed on one side

is visible in the window.

Removing contact unit for airbag

Removing contact unit for airbag

Marking the contact unit

Diagnostic system: reading out fault memory and activating systems

General warnings for contact unit

2873

Note

Ensure that arrow -A- of the rotor is positioned between the markings -B- of the arrows -C- of the airbag
contact unit and that the locking element -D- is engaged.

Airbag contact unit

1. Carefully lift up the three retaining tabs and remove airbag contact

unit.

Installing airbag contact unit

Installing contact unit for airbag

Airbag contact unit

1. Position airbag contact unit and press onto the steering column switch until the three tabs engage.

2. Calibrate steering angle sensor. → 695419 Removing and installing contact unit -

calibrating

Reworking

Work in wake of airbag contact unit

Install steering column switch. →  23 Removing and installing steering column switch - installing
Install steering column trim. → 481319 23 Removing and installing trim - installing
Install steering wheel. → 481019 Removing and installing steering wheel - installing

Diagnostic system: reading out fault memory and activating systems

Removing contact unit for airbag

2874

Install driver's airbag unit. →  23 Removing and installing driver's airbag unit - installing

Calibrating steering-angle sensor

Calibrating steering-angle sensor

Note

The steering-angle sensor must be re-calibrated after replacing the airbag contact unit.

• 

To correctly calibrate the angle sensor, the vehicle must be on the measuring platform.

• 

The steering angle sensor must be calibrated using the menu with the PIWIS Tester 9718 under the
specified test conditions:

• 

Running gear set according to Porsche specifications →   Adjusting values for suspension alignment

• 

Wheels in straight-ahead position and steering wheel horizontal.

• 

In the straight-ahead position, the steering wheel may depart from the horizontal position (steering
centre position) by +/- 2.0° max.

• 

1. Connect the PIWIS Tester 9718 to the vehicle and start the System Tester. Switch on ignition and press

>> to continue.

2. Select vehicle type and press >> to continue.

3. Select control unit PSM and confirm with >> .

4. Select Actual values and confirm with >> .

5. Select Security code and confirm with

>> .

6. Note theSecurity code und use << to go back to Calibration.

7. Select Calibration and confirm with >> .

8. Enter Security code and confirm with >> .

9. ConfirmSecurity code with F7 .

10. Select Steering angle sensor and confirm with

>> .

11. ReadSafety instructions using F7 .

12. After successful calibration, the stored fault code is erased from the fault memory. The PSM indicator

light in the instrument cluster goes out.

13. Read out the fault memory and, if necessary, erase it and read it again.

Diagnostic system: reading out fault memory and activating systems

Work in wake of airbag contact unit

2875

997110, 997111, 997120, 997121, 997310, 997311, 997320, 997321, 997410, 997411, 997430, 997431,
997610, 997611, 997620, 997621

WARNUNG

Gefahr des Verlusts der Text-Bild-Zuordnung beim Ausdruck.

Aus technischen Gründen kann derzeit nicht ausgeschlossen werden, dass trotz
einwandfreier Darstellung auf dem Bildschirm beim Ausdruck der
Zusammenhang von Text und zugehörigem Bild verloren geht.

• 

Wird der Fehler nicht bemerkt, besteht die Gefahr, daß Arbeiten nicht korrekt
durchgeführt werden und es dadurch zu Personen- und Sachschäden kommt.

• 

→ Vergleichen Sie deshalb nach dem Druckvorgang unbedingt die Ausdrucke mit der
Bildschirmdarstellung. Korrigieren Sie die Ausdrucke im Fehlerfall so, daß der Inhalt der
Bildschirmdarstellung zutreffend wiedergegeben wird.

WARNING

Danger of losing text-figure correspondence when printing out.

For technical reasons, it can currently not be ruled out that the correspondence
between text and associated figure can be lost when it is printed out, even though
the display on the screen is correct.

• 

If the fault is not noticed, there is the danger that work will not be performed
correctly which can cause injury and damage.

• 

→ Therefore, always compare printouts with the screen display after printing them out. Correct
the printouts if they are faulty so that the content of the screen display matches that on the
printouts.

AVERTISSEMENT

Risque de perte de la correspondance texte-illustration lors de l'impression papier.

Pour des raisons techniques, il ne peut pas être exclu à l'heure actuelle que, même
en cas d'affichage correct à l'écran, la correspondance entre le texte et l'illustration
puisse être erronée sur l'impression papier.

• 

Si l'erreur passe inaperçue, on court le risque d'exécuter certaines opérations de
manière incorrecte pouvant conduire à des dommages corporels et matériels.

• 

→ Comparez impérativement pour cette raison les impressions papier avec l'affichage à l'écran.
Corrigez-les en cas d'erreur de manière à reproduire correctement l'affichage à l'écran.

ATTENZIONE

Diagnostic system: reading out fault memory and activating systems

Calibrating steering-angle sensor

2876