NHTSA ID Number: 10172069
Manufacturer Communication Number: 122-J7Q9X-03
TSB/Document Date: 2020-03-05
Summary
Repair instructions for Workshop campaign WKL7, which seeks to update the software on several control units on the new 992 generation 911.
Service
Technical Information
166/19 ENU
WKL7
9
WKL7 - Updating Software for Various Control Units (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:
2020
Vehicle type:
911 (992)
Subject:
•
•
•
•
•
•
•
•
Information:
Software optimizations for various control units are available for the 911 (992).
With these software optimizations, various improvements are implemented in the vehicle. These include
correction of the unjustified error message "P not available", as well as optimised displays and fonts in the
instrument cluster.
Battery sensor (lithium starter battery I-no. J2A)
Selector lever control unit
Instrument cluster
Brake electronics (PSM incl. parking brake) control unit
Front axle lift system control unit
Control unit for chassis control (PASM)
Control unit for Tire Pressure Monitoring (TPM)
Rear-end electronics control unit (BCM2)
Information
The following control units are re-programmed and then re-coded automatically during the campaign
using three separate programming codes.
Control unit
Programming time
Affected vehicles
•
up to 70 minutes*
All vehicles assigned to the
campaign
•
•
•
•
•
Battery sensor for lithium starter
battery (I-no. J2A)*
Selector lever control unit
Instrument cluster
Brake electronics (PSM incl.
parking brake) control unit
Front axle lift system control
unit*
Control unit for chassis control
(PASM)
* The time required for
the update depends on
the respective vehicle
equipment.
AfterSales
Feb 14, 2020
Page 1 of 13
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Service
Technical Information
ENU 166/19
WKL7
•
Control unit for Tire Pressure
Monitoring (TPM)
approx. 2 minutes
All vehicles assigned to the
campaign
•
Rear-end electronics control unit
(BCM2)
approx. 8 minutes
Vehicles with rear-end
electronics (BCM2) control unit
software version less than
530
* Depending on equipment
The time required for programming and coding the listed control units can be up to approx. 80
minutes, depending on equipment.
Remedial
action:
Update software for the following control units using the PIWIS Tester with test software version
39.050.012 (or higher) installed:
•
•
•
•
•
•
Battery sensor for lithium starter battery (I-no. J2A) (if installed)
Selector lever control unit
Instrument cluster
Front axle lift system control unit (if installed)
Brake electronics (PSM incl. parking brake) control unit
Control unit for chassis control (PASM)
Additionally:
•
•
Affected
Vehicles:
Re-programming control unit for Tire Pressure Monitoring (TPM)
Rear-end electronics control unit (BCM2)
Only vehicles assigned to the campaign (see also PCSS Vehicle Information). This campaign affects
5,258 vehicles in North America.
Required tools
Information
The new 911 (992) comes with either a lithium starter battery (I-no. J2A) or an AGM starter battery
(I-no. J0V, J4K) as standard.
This depends on the following:
•
Country version
•
Model type
•
Vehicle equipment
Lithium starter batteries must only be charged using a suitable battery charger that has a current
and voltage-controlled charge map.
Feb 14, 2020
Page 2 of 13
AfterSales
Service
Technical Information
166/19 ENU
WKL7
9
For further information about the battery chargers to be used, see Workshop Manual '270689
Charging battery/vehicle electrical system'.
Tools:
•
•
Battery charger with a current rating of at least 90 A and - if required - also with a current and
voltage-controlled charge map for lithium starter batteries, e.g. Battery Charger, 90 A
9900 - PIWIS Tester 3 with PIWIS Tester software version 39.050.012 (or higher) installed
Preparatory work
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.
Before starting control unit programming, connect a suitable battery charger with a current rating of at
least 90 A to the vehicle.
NOTICE
Control unit programming will be aborted if the WLAN connection is unstable.
•
An unstable WiFi connection can interrupt communication between the PIWIS Tester and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.
During control unit programming, always connect the PIWIS Tester to the vehicle communication module
(VCI) via the USB cable.
NOTICE
Control unit programming will be aborted if the driver's key is not recognised
•
If the driver's key is not recognised in the vehicle, programming cannot be started or will be interrupted.
Place the driver's key with the back facing down in the area in front of the storage compartment under
the armrest (emergency start tray) in order to guarantee a permanent radio link between the vehicle and
driver's key.
NOTICE
Programming interrupted
•
Malfunctions in control unit
•
Risk of damage to control unit
Route the line between the vehicle communication module (VCI) and diagnostic socket on the vehicle
without tension and make sure that the connector is inserted fully into the diagnostic socket.
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Page 3 of 13
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Technical Information
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WKL7
Check that the rechargeable battery for the PIWIS Tester is charged sufficiently. Connect the PIWIS Tester
to the power supply unit if necessary.
Information
To carry out the campaign, the PIWIS Tester must be online and logged into the Porsche
Partner Network
(PPN).
Information
The procedure described here is based on the PIWIS Tester 3 software version 39.050.012.
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
Connect a suitable battery charger, e.g. Battery Charger, 90 A, to the jump-start terminals in the
luggage compartment and switch it on.
2
Place the driver's key with the back facing down in
the area in front of the storage compartment under
the armrest (emergency start tray) in order to
guarantee a permanent radio link between the vehicle
and driver's key Emergency start tray.
3
Connect the 9900 - PIWIS Tester 3 to the Vehicle
Communication Module (VCI) via the USB cable.
Then, connect the Communication Module to the
Emergency start tray
vehicle and switch on the PIWIS Tester.
Due to the long programming time, connect the PIWIS Testerto the power supply during the
operation.
Information
Feb 14, 2020
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AfterSales
Service
Technical Information
166/19 ENU
WKL7
9
Use the new PIWIS Tester data cable for carrying out
the campaign. The difference between the old
PIWIS Tester data cable -1- and new PIWIS Tester
data cable -2- data cable is shown in the illustration.
If the connection between the vehicle and PIWIS
Tester is interrupted, check the data cable for the
PIWIS Tester for signs of damage. If the data cable
is damaged, it must be replaced. To do this, follow
the instructions in the PPN for "Returning faulty USB
cable caps" (PPN portal > Dr Ing. h.c. F. Porsche AG
> Aftersales > Workshop > PIWIS > Documents).
4
Switch on the ignition.
5
On the PIWIS Tester start screen, call up the 'Diagnostics' application.
The vehicle type is then read out, the diagnostic application is started and the control unit selection screen
is populated.
6
PIWIS Tester data cable
Log the PIWIS Tester into the PPN.
Updating software for various control units
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.
Information
The fan runs several times for a few seconds during the programming sequence.
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Technical Information
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WKL7
Information
The PIWIS Tester automatically performs the programming sequence described below. This does not
require any interaction with the PIWIS Tester.
Control units that are not installed are skipped automatically.
The time required for the update depends on the respective vehicle equipment and can be up to 70
minutes.
The following control units are re-programmed and then re-coded in the specified sequence:
•
•
•
Battery sensor for lithium starter battery (I-no. J2A) (if installed)
Selector lever control unit
Instrument cluster
The following control units are re-coded automatically:
•
•
•
Work Procedure: 1
Front axle lift system control unit (if installed)
Brake electronics (PSM incl. parking brake) control unit
Control unit for chassis control (PASM)
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 version:
39.050.012 (or higher)
Type of control unit programming:
Control unit programming using the "Campaign"
function in the Additional menu on the PIWIS
Tester by entering a programming code.
Programming code:
V9Q8Z
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
Do not interrupt programming and coding.
A backup documentation process for the
re-programmed software versions starts as soon as
programming and coding is complete.
Programming time (approx):
up to 70 minutes*
* The time required for the update depends on the
respective vehicle equipment.
Feb 14, 2020
Page 6 of 13
AfterSales
Service
Technical Information
166/19 ENU
Software versions programmed during
this campaign:
WKL7
•
Battery sensor (lithium starter
battery)
0152
•
Selector lever control unit
0240
•
0206
9
Following control unit programming, the software
version can be read out of the relevant control unit in
the 'Extended identifications' menu using the PIWIS
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TSB/Document ID: 122-J7Q9X-03
Replacement Service Bulletin Number:
MFR Communication Date: 2020-02-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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