Service

Technical Information

171/24 ENU WRQ9

2

WRQ9 – Re-Programming DME Control Unit (Workshop Campaign)
Important:

CRITICAL WARNING -This campaign includes steps where control unit(s) in the vehicle will be programmed
with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5 volts during this
programming. Failure to maintain this voltage could result in damaged control unit(s). Damage caused by
inadequate voltage during programming is not a warrantable defect. The technician must verify the actual
vehicle voltage in the PIWIS Tester before starting the campaign and also document the actual voltage on the
repair order.

Model Year:

As of 2022 up to 2023

Model Line:

Cayenne (9YA / 9YB)

Concerns:

DME control unit

Cause:

An unauthorized fault memory entry can occur in the affected vehicles due to a software error in the DME
control unit.
Information
The P-Codes that are relevant to the fault memory entry in this instance are:
P06DA00 - Oil pressure control valve – short circuit to B+/open circuit (0053B8)
and/ or
P06DB00 - Oil pressure control valve – short circuit to ground (0053B7)

Action:

Re-program the DME control unit with the latest PIWIS Tester 4 software.
Minimum requirement: Release 42.950.021

Affected
Vehicles:

Only vehicles assigned to the campaign (see also PCSS Vehicle Information).

Required tools
Tools:

•
•

P90999 - P90999 - PIWIS Tester 4
Battery charger with a current rating of at least 90 A and a current and voltage-controlled charge map
for lithium starter batteries, e.g. VAS 5908 battery charger 90A

Re-programming DME control unit
Work Procedure: 1

Re-program DME control unit.

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Technical Information

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WRQ9

The basic procedure for control unit programming is described in the Workshop Manual ⇒ Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming using the PIWIS Tester'.
For specific information on control unit programming during this campaign, see the table below.
Required PIWIS Tester software release:

42.950.021 (or higher)

Type of control unit programming:

Control unit programming using the 'A utomatic
programming' function of the DME control unit:
‘DME’ control unit – ‘'Coding / programming' menu –
'A utomatic programming' function.

Programming sequence:

Read and follow the information and instructions on
the PIWIS Tester during the guided programming
sequence.
During the programming sequence, the DME control
unit is re-programmed first, and then the transmission control unit is re-programmed.
Both control units are then automatically re-coded.
Do not interrupt programming and coding.
Once the control units have been programmed and
coded, you will be prompted to switch the ignition off
and then back on again after a certain waiting time.
Backup documentation of the new software releases
is then performed.

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The programming sequence takes (approx.):

12 minutes

Record (software part number and software
version) programmed for the DME control
unit during this programming:

See section: ⇒ Technical Information '9X00IN
Overview of the programmed DME software versions'

Procedure in the event of a termination of
control unit programming:

• Switch the ignition off and on again.
• Read out and delete the fault memories ⇒
Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - "Rework" section'.
• Repeat control unit programming by restarting
programming.

Procedure in the event of other error
messages appearing during the
programming sequence:

⇒ Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - chapter on "FSL Fault finding"'

In the Overview, select the DME control unit.

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Service

Technical Information

171/24 ENU WRQ9

3

Select Service / repairs. Press •F12“ to continue.

4

Select Adaptations. Press •F12“ to continue.

2

All functions listed under Adaptations must be individually selected and adapted.
5

Select function. Press •F12“ to continue.

6

Adapt function. Press •F8“ to start.
6.1

Perform adaptation according to menu guidance. End adaptation with •F8“.

7

Select the next function. Perform adaptation (for instructions, see above).

8

Read out all fault memories process and delete existing faults if necessary.
Information
If control units are found to have faults that are not caused by control unit programming, these must
first be found and corrected. This work cannot be invoiced under the workshop campaign number.

9

Create vehicle analysis log (VAL) with the attribute "Post-VAL".

10 Exit the diagnostic application. Switch off the ignition. Disconnect the Tester from the vehicle.
11 Switch off and disconnect the battery charger.
12 Attach Recall Proof of Completion label to the front lid (California Porsche Centers only).
Instructions for attaching labels
•
•
•
•

Surfaces on which you intend to attach the label must be clean, dry and free from grease and oil
residues.
Before attaching the label, clean the surfaces using a suitable cleaning agent and a clean,
grease-free and lint-free cloth.
This label must not be affixed over existing label.
Attach label only at the specified positions.

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12.1

Fill out the Recall Proof of Completion label

⇒ Recall Proof of Completion Label fully

and correctly. This includes the recall code
“WRQ9”, your Porsche Center code and the
repair date.
12.2

Clean the surface in the lower area on the front
lid at the left-hand side in direction of travel
at which the Recall Proof of Completion label
Þ Proof of Completion
must be attached ⇒
Label: specified position (Exemplary illustration) -arrow- using a suitable cleaning agent
and a clean, grease-free and lint-free cloth.

12.3

Affix Recall Proof of Completion label in the
lower area of the front lid at the lefthand side
Þ Proof of Completion
in direction of travel ⇒
Label: specified position (Exemplary illustration) -arrow-.

12.4

Close front lid.

Recall Proof of Completion Label

13 Enter the campaign in the Warranty and Maintenance
Logbook.

Proof of Completion Label: specified
position (Exemplary illustration)

Overview of the programmed DME software versions
Information
The indications for software part number and software version of the programmed record are based on the
specified PIWIS Tester test software version. Please note that this may be different in a higher version.

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Vehicle type

Model year

Exhaust emission
standard

Software part
number

Software
release

Cayenne Turbo

2022 – 2023

ULEV (NAR + Korea +
Brazil)

9Y0.906.014.AB

0003

Cayenne Turbo GT

2022 – 2023

ULEV125 (incl. Korea +
Brazil)

9Y0.906.012.A

0003

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Service

Technical Information

171/24 ENU WRQ9

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Warranty processing
Scope 1:

Re-programming DME control unit
Labor time:
Re-programming DME control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing adaptations
Reading out and deleting fault memories
Creating Vehicle Analysis Log
Attach Recall Proof of Completion label and provide signed
proof of correction to customer (California Porsche Centers
only)

Labor time: 69 TU

Required parts:
PNA EMI 000 00

Label
– Recall Proof of
Completion

1 ea.

PNA 999 100 235

Certificate
- Recall Proof of
Correction

1 ea.

* California Porsche Centers only:
•
•

For warranty processing, enter the Part No. PNA EMI 000 00 with the designation "label" as a local
part at US$ 0.34 in the warranty claim.
For warranty processing, enter the Part No. PNA 999 100 235 with the designation "certificate" as a
local part at US$ 0.01 in the warranty claim.

Þ Damage number WRQ9 066 000 1
⇒

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.

© 2025 Porsche Cars North America, Inc.

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