Service

Technical Information

02/15

ENU

5568

5

Eliminating Symptoms on Body Exterior - Replacing and Re-Programming Control Unit for
Rear Lid (for I-no. 4E7/GY1) (Closing aid does not function at times/SY0215)

General information
Symptom
Closing aid for rear lid (I-no 4E7/GY1) does not function at times.
The message "Tailgate open" can be displayed in the instrument cluster.

Cause, date of introduction and remedial action
Cause
The rear lid closes at a higher speed particularly at cold temperatures.
The signal from the microswitch in the lid lock is too short and cannot be read out clearly by the control
unit software.
Model Year:

As of 2011 up to 2014
Date of introduction
Rear lid control units with updated software have been installed in the vehicle since November 7, 2014.
Remedial action
Replace, re-code and teach (calibrate) the existing rear lid (tailgate) control unit, depending on the
software version.

Tools and materials
Tools and materials
958.618.080.04 — NEW —  Control unit (for rear lid (tailgate), = 7P5.959.107.E)
9900 - PIWIS Tester III with software version 33.000 (or higher) installed
Battery Charger/Power Supply - Suitable for AGM Type batteries, recommended current rating of 90A
fixed voltage 13.5V to 14.5V.

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Feb 6, 2018
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Service
5568

ENU

Technical Information

02/15

Replacing and re-programming control unit for rear lid (tailgate) if necessary
Replacing and re-programming control unit for rear lid (tailgate) if necessary
NOTICE
Voltage drop
•

Risk of irreparable damage to control unit

•

Risk of damage to control unit

•

Fault entries in the control unit

•

Coding in the control unit is aborted

•

Malfunctions in control unit, even during programming



Switch off the ignition and remove the ignition key before disconnecting the control unit.



Ensure that the power supply is not interrupted during programming.



Connect a battery charger with a current rating of at least Nominal value 90 A to the vehicle battery.

Information
The 9900 - PIWIS Tester III instructions take precedence since the description may be different with
later Tester releases.
The procedure described here has been structured in general terms; different text or additions may
appear on the 9900 - PIWIS Tester III.
1

Connect a battery charger or power supply, suitable for AGM type batteries, recommended current
rating of 90A fixed voltage 13.5V to 14.5V to the vehicle and switch it on.

2

Connect the PIWIS Tester to the vehicle and switch it on.

3

Switch on ignition.

4

Read out the software version of the existing rear lid (tailgate) control unit:
4.1

Select the "Tailgate" control unit in the 'Control unit overview' on the PIWIS Tester and
press •F12“ to confirm your selection.

4.2

Read out the software version of the rear lid (tailgate) control unit in the 'Actual values/input
signals' menu:
a) If the software version is "0043" (or if the part number index is 7P5.959107.E), the
control unit can remain in the vehicle
 continue with Step 

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Technical Information

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b) If the software version is not "0043"  replace the control unit with a new control unit
(Part No.: 958.618.080.04):
5

Replace control unit for rear lid (tailgate), depending on the software version:
5.1

Select the "Control unit replacement" function in the 'Tailgate control unit' selection area
in the 'Maintenance/repairs' menu and press •F12“ to confirm.

5.2

Select the “Read data” function and press •F12“ to confirm.

5.3

Press •F8“ to start reading out data.

5.4

Check the chassis number. Press •F12“ to confirm.

5.5

Switch off ignition and install new control unit, see Workshop Manual  Workshop Manual
'556819 Removing and installing control unit for rear lid'.

5.6

The rear lid remains open.
Switch on ignition, select "Write data" in the 'Maintenance/repairs' menu (for instructions,
see above) and press •F12“ to confirm your selection.

6

5.7

Press •F8“ to start the process.
The data that was read out is written to the control unit.

5.8

The PIWIS Tester displays the message: Data has been written, press •F12“to continue.

Re-code control unit for rear lid (tailgate):
6.1

Vehicle data must be updated before starting coding:
6.1.1

In the 'Control unit overview', call up the Additional menu by pressing •F7“.

6.1.2

Select "Maintenance of vehicle data" and press •F12“ to confirm your selection.

6.1.3

Press •F12“ again to move to the next option.

6.1.4

Press •F12“ a second time to move to the next option.

6.1.5

Press •F12“ a third time to move to the next option.

6.1.6

Scroll down in the list until the option “SL9 - Repair data record for tailgate” is
displayed.
 Highlight the option and tick the 'Installed' column. Press •F12“ to confirm
your selection.

6.2

6.1.7

Coding value is displayed. Press •F8“ to write values.

6.1.8

Press •F11“ to return to the ‘Control unit overview’.

Select “Automatic coding” in the 'Codings/adaptations' menu and press •F12“ to
confirm your selection.
Coding is performed automatically. A progress bar appears.

6.3

Once coding is complete, end the process by pressing •F12“.

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Technical Information

02/15

CAUTION
When you start the calibration/teaching process, the tailgate moves to its limit stops. Mechanical force limitation is not guaranteed during this process.
•

Danger of pinching and squashing body parts.

•

Incorrect values for the control unit, resulting in malfunctions.



Take precautions to ensure that no body parts and objects can get caught in the tailgate.
7

Re-teach (calibrate) rear lid (tailgate):
7.1

Select the "Calibration" function in the 'Maintenance/repairs' menu and press •F12“ to
confirm your selection.

7.2

Read the warnings and confirm by pressing •F12“.
Start the calibration process by pressing •F8“.

7.3

Actuate the "Close tailgate" switch on the vehicle  the rear lid (tailgate) closes.

7.4

Actuate the "Open tailgate" switch on the vehicle  the rear lid (tailgate) opens.
 An acoustic signal sounds if the calibration process is successful.
Otherwise, the rear lid must be closed and opened again.

8

Read out the fault memory and delete it if necessary.

9

Switch off ignition.

10 Switch off the PIWIS Tester and disconnect it from the vehicle.
11 Disconnect the battery charger/power supply from the vehicle.
End of action required.

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Technical Information
Invoicing

02/15

ENU

5568

5

The work involved is invoiced under the labor operation:

APOS

Labor operation

I No.

55682500

Programming control unit for rear lid

55685500

Replacing control unit for rear lid
For invoicing and documentation using PQIS, enter the following codes:

Location (FES5)

55870

Upper part of rear lid lock

Damage type (SA4)

1613

does not function at times

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.

© 2018 Porsche Cars North America, Inc.

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