No. 201-23-2

Service
Technical Information
201/23 ENU
2470
2
Message “Engine Control Fault” in Instrument Cluster/Fault Memory Entries for Fuel
Injectors in DME Control Unit (201/23)
Vehicle Type:
911 Carrera (992) / 911 Carrera 4 (992) / 911 Carrera T (992) / 911 Carrera S (992) / 911
Carrera 4S (992) / 911 Carrera GTS (992) / 911 Carrera 4 GTS (992) / 911 Dakar (992) / 911
Targa 4 (992) / 911 Targa 4S (992) / 911 Targa 4 GTS (992) / 911 Targa 4 (992) / 911 Targa
4S (992) / 911 Targa 4 GTS (992) / 911 Turbo (992) / 911 Turbo S (992)
Model Year:
As of 2020 up to 2023
Concerns:
DME control unit
Cause:
The message “Engine control system fault” is displayed in the instrument cluster.
Two or more of the following fault memory entries are stored in the DME control unit fault memory:
•
•
•
•
•
•
P020100 - Cylinder 1 fuel injector, electrical fault (009C42)
P020200 - Cylinder 2 fuel injector, electrical fault (009C43)
P020300 - Cylinder 3 fuel injector, electrical fault (009C45)
P020400 - Cylinder 4 fuel injector, electrical fault (009C47)
P020500 - Cylinder 5 fuel injector, electrical fault (009C4A)
P020600 - Cylinder 6 fuel injector, electrical fault (009C4B)
Information
It is essential to ensure that the fault memory entries always only affect two fuel injectors opposite to
each other.
•
Cylinder 1 and cylinder 4
•
Cylinder 2 and cylinder 5
•
Cylinder 3 and cylinder 6
If this is not the case, this TI cannot be used as a remedy for the complaint; the cause of the error is not
corrected by this programming.
Action:
In the event of a customer complaint, re-program the DME control unit using the PIWIS Tester.
Information
The minimum programming requirement is the PIWIS Tester software release: 42.300.050
AfterSales
Jan 3, 2024
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Service
Technical Information
ENU 201/23
2470
Information
In the event that the software update does not provide a remedy, proceed as follows:
•
Check the affected injector line for chafing points and, if there is damage, repair the wire harness.
•
If the injector wire harness is normal, perform fault diagnosis on the DME control unit (DME control
unit may have an internal defect).
Required tools
Tools:
•
•
P90999 - PIWIS Tester 4
Battery charger with a current rating of at least 90 A, e.g., VAS 5908 90-A battery charger. For
further information about the battery chargers to be used, see the corresponding Workshop Manual.
 Workshop Manual '270689 Charging vehicle electrical system and battery'
Re-programming DME control unit
1
The basic work 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 - section on “Programming”'.
Specific information on control unit programming as part of this Technical Information:
Required PIWIS Tester software release:
42.300.050 (or higher)
Type of control unit programming:
Control unit programming using the “Automatic
programming” function of the DME control unit.
“Motor electronics (DME)” control unit –
“Coding/programming” menu – “Automatic
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 and then automaticallyre-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 versions
is then performed.
Jan 3, 2024
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Service
Technical Information
2
201/23 ENU
2470
2
Programming time (approx.):
Programming takes up to 15 minutes, depending
on equipment.
Data set for the motor electronics (DME)
programmed as part of this programming:
See section:  Technical Information '9X00IN
Overview of programmed DME data records'.
Procedure in the event of error messages
appearing during the programming
sequence:
 Workshop Manual '9X00IN Basic instructions and
Procedure in the event of a termination in
the control unit programming:
Repeat control unit programming by restarting
programming.
procedure for control unit programming using the
PIWIS Tester'.
Read out and delete all control unit fault memories.
2.1
Press •F7“ in the control unit selection screen (“Overview” menu) to call up the Additional
menu.
2.2
Select the “Read all error memories and delete if necessary” and press •F12“ (‘Next’) to
confirm.
3
Exit the diagnostic application. Switch off ignition. Disconnect Tester from vehicle.
4
Switch off and disconnect the battery charger.
Information
In the event that the software update does not provide a remedy, proceed as follows:
•
Check the affected injector line for chafing points and, if there is damage, repair the wire harness.
•
If the injector wire harness is normal, perform fault diagnosis on the DME control unit (DME control
unit may have an internal defect).
Overview of programmed DME data records
Information
The software part number and software release of the programmed data record are based on the
specified PIWIS Tester test software release. Please note that this may be different in a later release.
Overview:
911 Carrera (992) / 911 Carrera 4 (992) / 911 Carrera T (992) / 911 Targa 4 (992)
•
with Porsche Doppelkupplung (PDK)
Exhaust
emission
standard
ULEV 70 gr. Cat
Model year
2020
(L)
–
2021
(M)
X
2022
(N)
X
AfterSales
2023
(P)
X
Porsche
part number
(software)
Software
release
992906021CA
0001
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Technical Information
ENU 201/23
2470
911 Carrera T (992)
•
with manual transmission
Exhaust
emission
standard
ULEV 70 gr. Cat
Model year
2020
(L)
2021
(M)
–
–
2022
(N)
–
2023
(P)
X
Porsche
part number
(software)
Software
release
992906021CE
0001
911 Carrera S (992) / 911 Carrera 4S (992) / 911 Targa 4S (992)
•
with Porsche Doppelkupplung (PDK)
Exhaust
emission
standard
ULEV 70 gr. Cat
Model year
2020
(L)
2021
(M)
–
X
2022
(N)
X
2023
(P)
X
Porsche
part number
(software)
Software
release
992906020CM
0001
911 Carrera S (992) / 911 Carrera 4S (992) / 911 Targa 4S (992)
•
with manual transmission
Exhaust
emission
standard
ULEV 70 gr. Cat
Model year
2020
(L)
2021
(M)
–
X
2022
(N)
X
2023
(P)
X
Porsche
part number
(software)
Software
release
992906020CQ
0001
911 Carrera GTS (992) / 911 Carrera 4 GTS (992) / 911 Targa 4 GTS (992)
•
with Porsche Doppelkupplung (PDK)
Exhaust
emission
standard
ULEV 70
Jan 3, 2024
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Model year
2020
(L)
–
2021
(M)
–
2022
(N)
X
AfterSales
2023
(P)
X
Porsche
part number
(software)
Software
release
992906022AJ
0001
Service
Technical Information
201/23 ENU
2470
2
911 Carrera GTS (992) / 911 Carrera 4 GTS (992) / 911 Targa 4 GTS (992)
•
with manual transmission
Exhaust
emission
standard
ULEV 70
Model year
2020
(L)
2021
(M)
–
–
2022
(N)
X
2023
(P)
X
Porsche
part number
(software)
Software
release
992906022AM
0001
Porsche
part number
(software)
Software
release
992906023J
0001
Porsche
part number
(software)
Software
release
992906027AF
0001
Porsche
part number
(software)
Software
release
992906026AJ
0001
911 Dakar (992)
•
with Porsche Doppelkupplung (PDK)
Exhaust
emission
standard
ULEV 70
Model year
2020
(L)
2021
(M)
–
–
2022
(N)
–
2023
(P)
X
911 Turbo (992)
•
with Porsche Doppelkupplung (PDK)
Exhaust
emission
standard
ULEV 70
Model year
2020
(L)
2021
(M)
–
X
2022
(N)
X
2023
(P)
X
911 Turbo S (992)
•
with Porsche Doppelkupplung (PDK)
Exhaust
emission
standard
ULEV 70
Model year
2020
(L)
–
2021
(M)
X
2022
(N)
X
AfterSales
2023
(P)
X
Jan 3, 2024
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Technical Information
ENU 201/23
2470
Labor position and PCSS encryption
Labor position:
APOS
Labor operation
24702590
Programming DME control unit
I No.
PCSS encryption:
Location (FES5)
24700
DME control unit
Damage type (SA4)
1614
Function not as specified
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.
© 2024 Porsche Cars North America, Inc.
Jan 3, 2024
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