Service

Technical Information

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WA40

2

WA40 - Re-programming DME, PDK and PSM Control Unit (Workshop Campaign)

Vehicle Type:

Panamera S/Panamera 4S/Panamera Turbo

Model Year:

2010

Concerns:

DME, PDK and PSM control unit

Revision 2:

July 9, 2012 — WA40A – Programming DME and PDK control unit and WA40B – Programming PSM
control unit) no longer applies, bulletin was revised accordingly.

Information:

This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles.
New data records are available for the DME, PDK and PSM control units.
The new data records will significantly enhance performance in the following driving situations:
•
•
•
•
•
•
•

Action
Required:

Drive-off performance with Start Stop system activated (“Quickstart”) and engine cold
Hold function with Start Stop system activated (“Quickstart”)
Engine running behaviour during warm-up phase after cold start
Responsiveness during manoeuvring
Gearshift and acceleration behaviour when cruise control is active
Gear shifts while coasting
Gearshift behaviour during load changes while changing gear

Re-program the DME and PSM control unit.
In the case of vehicles with Porsche Doppelkupplung (PDK), the PDK control unit also needs to be
re-programmed.
The total time required for programming and coding is approx. 20 minutes.
Information
With PIWIS Tester software version 10.100 (or higher), the programming sequence for this campaign is
much easier:
•

From now on, the control units are programmed and coded in one programming step (WA40).

•

The previous division into two programming steps (WA40A – Programming DME and PDK control
unit and WA40B – Programming PSM control unit) no longer applies.

•

If the control unit causes programming to be aborted, programming will be restarted automatically
up to twice.

From now on, please carry out control unit programming using PIWIS Tester software version 10.100 (or
higher).
The description in this Technical Information has been changed accordingly.

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WA40

Affected
Vehicles:

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•

Once the PSM control unit has been programmed, the ignition must be switched off and the fuse for
the PSM control unit (fuse box, left side of dashboard, second row from bottom, slot 41, 10 amp
fuse) must be removed and then re-inserted.

•

The fault memories of all control units must then be read out and erased and the DME, PDK (if
installed) and PSM control units must be re-coded using the “Automatic coding” function.

•

Finally, a throttle valve adaptation must be performed, as well as an engine torque loss adaptation in the case of vehicles with PDK transmission.

The VIN(s) can be checked by using PIWIS Vehicle Information link to verify if the campaign affects the
vehicle. This Campaign is scope specific to the VIN! Failure to verify in PIWIS may result in an improper
repair.
Information
This campaign must be carried out even if workshop campaign WA19 has already been carried out on the
vehicle.
PIWIS Tester II 9818 with test software version 10.100 (or higher) installed

Tools:

Battery charger (current rating of at least 40 A)
Work
Procedure:

See Attachment “A”.

Claim
Submission:

See Attachment “B”.

Attachment "A": Work Procedure
•
•

USA and Canadian Vehicles — Procedure for vehicles with PDK transmission, see ⇒ Technical Information ’WA4000 Scope 1 - Vehicles with PDK transmission’
Only for RoW Vehicles — Procedure for vehicles with 6-speed manual transmission, see ⇒ Technical
Information ’WA4000 Scope 2 - Vehicles with 6-speed manual transmission’

Scope 1 - Vehicles with PDK transmission
Procedure:
NOTICE
Fault entry in the fault memory and control unit programming aborted due to low voltage.
•

Increased current draw during diagnosis or control unit programming can cause a drop in voltage,
which can result in one or more fault entries and the abnormal termination of the programming
process.

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Technical Information
⇒

28/10 ENU

WA40

2

Before commencing work, connect a suitable battery charger with a current rating of at least
continuos 40 A to the jump-start terminals in the engine compartment. For further information please
refer to Panamera ATI bulletin, Group 9, #1002.
1

Connect a battery charger with a current rating of at least 40 A to the jump-start terminals in the
engine compartment.

2

Disconnect electric plug connection (⇒ Figure 1
-item 1-) for the fan blower (⇒ Figure 1 -arrow-)
to prevent the blower from coming on during control
unit programming.
Operation of the fan and the resulting increased
current draw can cause a voltage drop, which can
cause control unit programming to be aborted.

1

Figure 1
NOTICE
Control unit programming will be aborted if the Internet connection is unstable.
•

An unstable Internet connection can interrupt communication between PIWIS Tester II and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.

⇒

During control unit programming, always connect PIWIS Tester II to the vehicle communication
module (VCI) via the USB cable.
3

PIWIS Tester II 9818 with test software version 10.100 (or higher) installed must be connected
to the vehicle communication module (VCI) via the USB cable. Then, connect the communication
module to the vehicle and switch on the PIWIS Tester.

4

Switch on the ignition using the original vehicle key.

5

Call up the ⇒ ’Diagnostics’ menu and select vehicle type ⇒ ’Panamera’.
The diagnostic application starts and the control unit overview screen (’Overview’ menu) is displayed.

6

Carry out control unit programming using PIWIS Tester II with test software version 10.100
(or higher) installed.

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Information
The PIWIS Tester instructions take precedence and in the event of a discrepancy, these are the
instructions that must be followed.
A discrepancy may arise with later software versions for example.
6.1

Press •F7“ to switch to the ⇒ ’Additional’ menu.

6.2

Select the ⇒ ’Campaign’ function and confirm your selection by pressing •>>“.
You are then prompted to enter a campaign number.

6.3

To enter the campaign number, click in the relevant text box so that the cursor starts to flash.

6.4

Enter campaign number WA40 and confirm your entry by pressing •Enter“.
The text box turns blue.

6.5

Press •>>“ to continue.
The names of the control units to be programmed (in this case: PDK, DME and PSM) as
well as the data records to be programmed and the Porsche part number and status will be
displayed.
Information
It is possible that the displayed status will not always be transferred correctly from the
control unit to the PIWIS Tester.
As a result, after you have programmed the control unit and re-entered the campaign
number, the status “Not current” may appear, for example, when the control unit to be
programmed is displayed although programming has already been carried out successfully.
If in doubt, read out and check the program versions of the control units in the ⇒ ’Extended
identification’ menu.

6.6

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•

Once the DME control unit has been programmed, the index (last two digits) of the
Porsche part number that was read out using the PIWIS Tester in the “Extended identification” menu must be 12 (or higher).

•

Once the PDK control unit has been programmed, the index (last two digits) of the
Porsche part number that was read out using the PIWIS Tester in the “Extended identification” menu must be 25 (or higher).

•

Once the PSM control unit has been programmed, the index (last two digits) of the
Porsche part number that was read out using the PIWIS Tester in the “Extended identification” menu must be 13 (or higher).

Press •F8“ (“Execute”) to start programming.

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WA40

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Information
If programming does not start, the campaign number WA40 must be entered again and
programming must be restarted.
For this purpose, repeat Steps 6.3 to 6.6 until programming starts.

Information
If programming does not start and the error message “The actual values for the … control
unit do not correspond” appears in the PIWIS Tester display, the software version of one
or more control units may already be up-to-date (Current software versions following
programming, see Step 6.5).
If this is not the case and the error message specified above is displayed, the values stored
in the vehicle data must be checked and corrected if necessary using the PIWIS Tester as
described below.
•

Press •“ to continue
and skip the other menu pages for maintaining vehicle data (“Color and material”, “X
numbers”, “M numbers”). No changes are required here.

•

Once you have run through all the menus for maintaining vehicle data, press •F8“ to
save your data.

•

Press •> enter campaign number). It is not possible
to program the PSM control unit manually.
When programming is complete, the message “Programming was completed
successfully” will be displayed.

7

6.7

Once programming is completed successfully, press •>>“ to continue.

6.8

Press •“ to start the control unit search.

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7.3.4

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After the control unit search is complete, press •F8“ to select all control units
with fault memory entries.
The control units with fault memory entries are highlighted in blue.

7.3.5

Select the ⇒ ’Fault memory’ menu.
The fault memories of the various control units are read out.

7.3.6

Press •F8“ to delete fault memory entries.

7.3.7

Confirm with •F12“ (“Yes”) that you wish to delete all fault codes.
The faults stored in the fault memories of the various control units are deleted.
If the fault memories of individual control units (e.g. DME, PDK) cannot be erased,
switch the ignition off and then on again and erase the fault memories of these
control units separately.
If control units are found to have faults which cannot be erased and are not caused
by control unit programming, these faults must be located and corrected.
This work cannot be invoiced under the workshop campaign number.

7.4

7.3.8

Once you have erased the fault memories, select ⇒ ’Overview’ to return to the
control unit overview.

7.3.9

Press •F6“ (“Delete”) to undo the control unit selection (blue marking).

Perform throttle valve adaptation using the PIWIS Tester.
7.4.1

Select the control unit ’DME’ in the control unit overview screen (’Overview’ menu)
and select the ⇒ ’Maintenance/repairs’ menu.

7.4.2

Select menu item ⇒ ’Adaptations’ and confirm by pressing •>>“.

7.4.3

Note the preconditions displayed (engine off, ignition on, do not press the accelerator pedal) and confirm with •>>“.

7.4.4

Select the ⇒ ’Throttle valve adaptation’ function and confirm your selection by
pressing •>>“.

7.4.5

Follow the instructions of the PIWIS Tester to carry out the throttle valve adaptation.
Confirm the instructions by pressing •>>“.
Once throttle valve adaptation is complete, the message “Throttle valve adaptation
was successful” appears on the PIWIS Tester display.
If throttle valve adaptation is not completed successfully, adaptation must be
repeated.

7.4.6

After successful throttle valve adaptation, press •