Porshe 911 (997). Manual - part 927

coded. → 916219 Removing and installing control unit for steering wheel electronics - chapter on
"Coding"

Note

The PIWIS tester 9718 instructions take precedence and in the event of a discrepancy these are the
instructions that must be followed. Deviations may occur with later software versions.
The procedure described here has been structured in general terms; different text or additions may appear in
the PIWIS tester 9718.

WARNING

Sudden voltage interruption of the power supply to the control module.

Destruction of the control module.

• 

→ During programming, it is essential to guarantee the power supply for the Porsche System tester. It is

essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.

→ Prior to disconnecting the control module, switch off the ignition and remove the ignition key.

1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on ignition. >>

Continue.

2. Select the vehicle

type.

3. Switch from the vehicle type to the list of control units.

4. Select steering wheel electronics with the cursor keys and press the >> key.

5. Select Control unit replacement with the cursor keys and press the >> key.

6. Select Read out values (codings) with the cursor keys and press the >> key.

7. The message Codes successfully read out appears on the screen of the Porsche System Tester. Press >> .

8. Switch off ignition and replace control unit. → 916219 Removing and installing control unit for steering

wheel electronics - section on "Removing"

9. Switch to the Special functions menu and perform the vehicle handover using the F8 key.

10. In the Special functions menu, erase All fault memories by pressing >> .

11. Carry out automatic search of control units.

12. In the menu Write in data >> , the data read-out is installed.

13. System tester displays Coding write-in complete >> .

14. Change to the Coding menu and compare the coding with the vehicle equipment. Recode if necessary.

15. Quit menu, carry out a test drive, and read out fault

memory.

Diagnostic system: reading out fault memory and activating systems

Reading and printing values

3865

Coding control unit for steering wheel electronics

Coding control unit for steering wheel electronics

Note

The procedure described must be applied when a control unit has to be replaced and the tester function
Control unit replacement

 cannot be used.

Note

The PIWIS tester 9718 instructions take precedence and in the event of a discrepancy these are the
instructions that must be followed. Deviations may occur with later software versions.
The procedure described here has been structured in general terms; different text or additions may appear in
the PIWIS tester 9718.

WARNING

Sudden voltage interruption of the power supply to the control module.

Destruction of the control module.

• 

→ During programming, it is essential to guarantee the power supply for the Porsche System tester. It is

essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.

→ Prior to disconnecting the control module, switch off the ignition and remove the ignition key.

1. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. >> Continue.

2. Select the vehicle type.

3. Switch to the Special functions menu and perform the vehicle handover using the F8 key.

4. In the Special functions menu, erase All fault memories by pressing

>> .

5. Carry out automatic search of control units.

6. Using the >> key, move from the vehicle type to the list of control units.

7. Select the control unit Steering wheel electronics and activate with the >> key.

8. Select Coding and activate with the >> key.

9. Select the respective equipment versions and code them.

Coding

Setting

Tiptronic

yes/no

Multi-function steering wheel

yes/no

Cruise control

yes/no

Diagnostic system: reading out fault memory and activating systems

 Coding control unit for steering wheel electronics

3866

Headlight washing system

yes/no

Push-to-talk

yes/no

Rear wiper/washer system

yes/no

10. Follow the instructions on the Tester.

11. Calibrate steering angle sensor . → 916219 Remove and install control unit for steering wheel electronics -

section on "Calibration"

12. Carry out a test drive and read out fault

memory.

Calibrating steering-angle sensor

Calibrating steering-angle sensor

Note

The steering-angle sensor must be recalibrated on the measuring platform following repairs to or
work on the chassis/steering or if the steering-angle sensor/steering column switch/hydraulic unit is
replaced.

• 

In order to be able to calibrate the steering angle sensor correctly, the vehicle must be on the
measuring platform, the wheel alignment values correct and the steering in the straight-ahead
position.

• 

The security code is displayed in the Porsche System Tester under menu PSM, Actual values,
Security code.

• 

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

1. Switch on ignition.

2. Turn wheels or steering wheel to straight-ahead position. In the straight-ahead position, the

steering wheel must deviate by no more than ± 2.0° from the horizontal position (steering centre
position).

3. Before calibrating, first turn the steering wheel from the straight-ahead position approx. 20° to the left and

20° to the right (past straight-ahead position).

4. Turn wheels or steering wheel to straight-ahead position and calibrate the steering-angle sensor in the

menu PSM, Calibration. To calibrate, you must enter the security code in the actual values menuPSM,
Actual values

.

5. Enter security code and confirm with F7 .

6. Turn steering-wheel to Tester default position.

Diagnostic system: reading out fault memory and activating systems

Coding control unit for steering wheel electronics

3867

7. Tester confirms Calibration successful.

8. Carry out a test drive and read out fault memory.

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.

• 

Diagnostic system: reading out fault memory and activating systems

Calibrating steering-angle sensor

3868