No. 148-21

Service
Technical Information
148/21 ENU
AMC0
2
AMC0 - Re-Programming DME and Transmission Control Unit (Recall 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 2012 up to 2016
Revision:
This bulletin replaces bulletin Group 2 148/21 AMC0, dated December 7, 2021.
Model Line:
911 (991)
Boxster/ Cayman (981)
Concerns:
DME control unit
Information:
During internal tests, Porsche has discovered that increased exhaust emissions may occur
under certain driving conditions in Sport+ mode on the 911 (991 I) Basic/S/GTS and Boxster/
Cayman S (981).
Action required: Re-program the DME control unit and transmission control unit using the PIWIS Tester with software
version 40.650.030 (or higher) installed.
Information
During programming, the DME control unit and the PDK control unit are automatically programmed and
then coded.
It takes approx. 15 minutes in total to program and code both control units.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required tools
Tools:
•
•
9900 - PIWIS Tester 3 with PIWIS Tester software version 40.650.030 (or higher) installed
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A
AfterSales
Dec 13, 2021
Page 1 of 8
2
Service
AMC0
ENU
Technical Information
148/21
Re-programming DME control unit
NOTICE
Use of a PIWIS Tester software version that is older than the prescribed version.
•
Measure is ineffective

Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming and coding.
WARNING
Electrically moved side windows and rear spoiler
•
Danger of limbs being trapped or severed
•
Risk of damage to components

Do not reach into the danger area.

Keep third parties away from the danger area.

Do not move components or tools into the danger area.

Retract roll-up sun blinds on the rear side windows before starting programming or coding.
Information
The procedure described here is based on the PIWIS Tester 3 software version 40.650.030.
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.
Work Procedure: 1
2
Carry out general preliminary work for control unit programming as described in  Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming using the PIWIS
Tester'.
Re-program the DME control unit.
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 table
below.
Required PIWIS Tester software version:
Dec 13, 2021
Page 2 of 8
40.650.030 (or higher)
AfterSales
Service
Technical Information
148/21 ENU
Type of control unit programming:
AMC0
2
Control unit programming using the 'Automatic
programming' function for the DME control unit:
'DME' control unit – 'Coding/programming' menu
– 'Automatic programming' function.
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, then the PDK
control unit is re-programmed.
Programming sequence:
Both control units are then re-coded automatically.
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 versions
is then performed.
The programming sequence takes
(approx.):
15 minutes
Software version programmed during this
campaign:
See  Technical Information '9X00IN Software
version' section.
Procedure in the event of abnormal
termination of control unit programming:
• Switch ignition off and then on again.
• Read out and erase fault memories  Workshop
Manual '9X00IN Basic instructions and procedure
for control unit programming using the PIWIS Tester section on "Subsequent work"'.
• 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 - section on "Fault finding"'.
3
Select the DME control unit in the overview.
4
Select Maintenance/repairs. Press •F12“ to continue.
5
Select Throttle valve adaptation. Press •F12“ to continue.
6
Select function. Press •F12“ to continue.
AfterSales
Dec 13, 2021
Page 3 of 8
2
Service
AMC0
Technical Information
ENU
148/21
7
Adapt function. Press •F8“ to start.
Perform adaptation according to menu guidance. End adaptation with •F8“.
8
Read out all fault memories, work through faults that are stored if necessary and clear the fault
memories.
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
Exit the diagnostic application.
10 Switch off ignition.
11 Disconnect the Tester from the vehicle.
12 Switch off and disconnect the battery charger.
13 Attach Recall Proof of Completion label to the front lid (California dealers 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.
13.1
Fill out the Recall Proof of Completion label
 Recall Proof of Completion Label fully
and correctly. This includes the recall code
“AMC0”, your dealer code and the repair
date.
13.2
Dec 13, 2021
Page 4 of 8
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 must be attached  Proof
of Completion Label: specified position
(Exemplary illustration — 911 (991),
Boxster/ Cayman (981) position accordingly)
-arrow- using a suitable cleaning agent and a
clean, grease-free and lint-free cloth.
AfterSales
Recall Proof of Completion Label
Service
Technical Information
13.3
148/21 ENU
AMC0
2
Affix Recall Proof of Completion label in the
lower area of the front lid at the lefthand side
in direction of travel  Proof of Completion
Label: specified position (Exemplary illustration — 911 (991), Boxster/ Cayman (981)
position accordingly) -arrow-.
Exemplary illustration — 911 (991) position
accordingly
13.4
Close front lid.
14 Enter the campaign in the Warranty and Maintenance
booklet and provide signed proof of correction to
customer.
A template of the proof of correction
can be downloaded from PPN:
https://ppn.porsche.com/portal/docs/DOC-387933
Proof of Completion Label: specified
position (Exemplary illustration
— 911 (991), Boxster/ Cayman
(981) position accordingly)
For warranty processing, see the section  Technical Information '9X00IN Warranty processing'.
Software overview
911 (991):
Type
Model year
Differential Lock
Software part number
Software
version
911
2012-2016
No
DME
DME
99161861213
3183
Transmission
Transmission
99161837118
Q061
911
2012-2016
Yes (with old differential
lock)
DME
DME
99161861213
3183
Transmission
Transmission
99161837019
Q061
911
2012-2016
Yes (with new differential
lock)
DME
DME
99161861213
3183
Transmission
Transmission
99161897219
Q061
AfterSales
Dec 13, 2021
Page 5 of 8
2
Service
AMC0
ENU
Technical Information
148/21
911 (4)
2012-2016
No
DME
DME
99161861213
3183
Transmission
Transmission
99161837618
Q061
911 (4)
2012-2016
Yes
DME
DME
99161861213
3183
Transmission
Transmission
99161837519
Q061
911 (S)
2012-2016
Yes (with old differential
lock)
DME
DME
99161862714
3821
Transmission
Transmission
99161898219
Q061
911 (S)
2012-2016
Yes (with new differential
lock)
DME
DME
99161862714
3821
Transmission
Transmission
99161838019
Q061
911 (4S)
2012-2016
Yes
DME
DME
99161862714
3821
Transmission
Transmission
99161838519
Q061
911 (GTS)
2015-2016
Yes
DME
DME
99161864211
3822
Transmission
Transmission
99161838202
Q061
911 (4 GTS)
Dec 13, 2021
Page 6 of 8
2015-2016
Yes
AfterSales
DME
DME
99161864211
3822
Transmission
Transmission
99161838602
Q061
Service
Technical Information
Boxster/
Cayman (981):
148/21 ENU
AMC0
Type
Model year
Software part
number
Software version
Boxster/Cayman (S)
2013-2014
DME
DME
98161863216
3190
Transmission
Transmission
98161838018
Q061
DME
DME
98161863222
3179
Transmission
Transmission
98161838018
Q061
Boxster/Cayman (S)
2015-2016
2
Warranty processing
Information
The specified working time was determined specifically for carrying out this campaign and may differ
from the working time published in the Labor Operation List in PIWIS.
Scope:
Re-programming DME control unit
Working time:
Re-programming DME control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Re-programming PDK control unit
Performing throttle valve adaptation
Reading out and erasing fault memories
Attach Recall Proof of Completion label and provide signed
proof of correction to customer (California dealers only)
Labor time: 71 TU
Required parts:
PNA EMI 000 00
Label
– Recall Proof of
Completion
1 ea.
* California dealers 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.
 AMC0 099 000 1
AfterSales
Dec 13, 2021
Page 7 of 8
2
Service
AMC0
ENU
Technical Information
148/21
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.
© 2021 Porsche Cars North America, Inc.
Dec 13, 2021
Page 8 of 8
AfterSales