Porshe 911 (997). Manual - part 476

 

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Porshe 911 (997). Manual - part 476

 

 

Disengaging control unit

3. Press the four retaining clips carefully back and take the control unit out of the

holder.

4. Take out the control unit.

Installing control unit for rear convenience systems

Installing control unit for rear convenience systems

Clipping control unit into holder

1. Insert control unit into holder making sure the clips

engage.

Diagnostic system: reading out fault memory and activating systems

 Installing control unit for rear convenience systems

2061

Pushing on electric connectors

2. Press electric connectors into control unit until they are felt to engage.

Clipping in holder for control unit

3. Turn the holder through 180° into the direction of travel, engage at front and clip in at

rear.

4. If a new control unit has been installed, continue under → 578919 Removing and installing control unit for

rear convenience systems - section on "Programming"; → 578919 Removing and installing control unit for
rear convenience systems - section on "Coding"

Subsequent work

Subsequent work on control unit for rear convenience comfort systems

→  23 Removing and installing front seat - installing

Diagnostic system: reading out fault memory and activating systems

Installing control unit for rear convenience systems

2062

Programming control unit for rear convenience systems

Reading from and writing to the rear convenience system control unit

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.

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.

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 Rear 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

>> .

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→  21 Removing and installing control unit for rear

convenience systems - removing

9. Switch to the Special functions menu and perform vehicle handover by pressing

F8 .

10. Erase all fault memories in the Special functions menu and press >> .

11. Carry out automatic search of control units.

12. Switch to the Write in data menu and press >> to load the data that was read out.

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. Exit the menu, carry out a test drive and read out the fault memory.

Diagnostic system: reading out fault memory and activating systems

 Programming control unit for rear convenience systems

2063

Coding control unit for rear convenience systems

Coding the control unit for rear convenience systems

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.

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.

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.

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 vehicle handover by pressing

F8 .

4. Erase all fault memories in the Special functions menu and press >> .

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 Rear end and press the

>> .

8. Select Coding and press the >> .

9. Select Automatic transmission and code with F8 .

Automatic transmission

Diagnostic system: reading out fault memory and activating systems

Reading from and writing to the rear convenience system control unit

2064

 

 

 

 

 

 

 

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