NHTSA ID Number: 10198982
Manufacturer Communication Number: No. 192-20
TSB/Document Date: 2021-07-06
Summary
Instructions for fixing over the air software update control unit failure.
Service
Technical Information
192/20 ENU
9198
9
Complaint - Over the Air (OTA) Software Update for OTA Control Unit Failed: Observe
Specified Procedure (192/20)
Model Line:
Taycan (Y1A)
Model Year:
As of 2020
Concerns:
Over the Air (OTA) control unit
Information:
The Over the Air (OTA) software update failed and an error message appears in the central display of the
Porsche
Communication Management (PCM).
Information
Please also pass the information about the procedure 'Perform software update in Update Center' on to
your sales staff in order to inform the customer about this if necessary.
Action required: Perform the relevant remedial action as described in the error message:
Error message
Remedial action
'The online software update could not be
performed. The vehicle condition is unchanged.'
Perform software update again in the Update
Center Technical Information 'Performing
software update in the Update Centre'.
'The online software update could not be
performed. This may cause function restrictions.'
Perform software update using the PIWIS Tester
Technical Information 'Performing software
update in the PIWIS Tester'.
Performing software update in the Update Center
Information
The following prerequisites must be met for a software update:
•
Porsche ID active
•
Online software update service activated in MyPorsche
•
Privacy mode deactivated in the vehicle (flight mode)
•
Privacy mode service-specifically deactivated (flight mode)
•
High-voltage battery is not being charged
•
Vehicle plug removed from vehicle charge port
•
All electrical loads (e.g. parking pre-climatization) switched off
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Technical Information
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Work Procedure: 1
Close vehicle doors.
2
Establish operational readiness.
3
Activate the parking brake.
4
Move selector lever to position 'P'.
5
Press and hold the power button (approx. 1 second) to end operational readiness.
6
Select the menu item 'Online software update available' in the Update Center Menu item 'Online
software update available' -1-.
Menu item 'Online software update available'
7
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Press the 'Install now' button 'Install now' button -1-.
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'Install now' button
8
Get out and lock the vehicle.
9
Keep the driver's key outside of the transmitter range.
Performing software update using the PIWIS Tester
Information
•
The error message 'Update failed – vehicle functions restricted' also appears in the instrument
cluster.
•
The error message 'Update failed' appears in the Notification Center.
•
The entry ' B199AF0 Online Remote Update – software version inconsistent (A02000)' is stored in
the fault memory of the Over the Air (OTA) control unit.
Required tools
Tools:
•
•
9900 - PIWIS Tester 3 with current PIWIS Tester software version.
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A.
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Technical Information
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Preparatory work
NOTICE
Fault entry in the fault memory and control unit programming aborted due to undervoltage.
•
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 recognized
•
If the driver's key is not recognized in the vehicle, programming cannot be started or will be interrupted.
Place the driver's key with the back facing down into the front left storage compartment in the center
console to guarantee a continuous radio link between the vehicle and the driver's key.
Work Procedure: 1
Place the driver's key with the back facing down
into the front left storage compartment in the center
console (emergency start tray) to guarantee a
continuous radio link between the vehicle and the
driver's key Emergency start tray.
2
Carry out general preliminary work for control unit
programming as described in Workshop Manual
'9X00IN Basic instructions and procedure for control
unit programming - section on "Preliminary work"'.
Emergency start tray
Resetting error messages
Work Procedure: 1
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Start diagnostics.
AfterSales
Service
Technical Information
192/20 ENU
2
Select the 'Over-the-Air (OTA)' control unit.
3
Select 'Maintenance/repairs' menu.
9198
9
Control unit selection
4
Select the menu item 'Reset ORU warning' and
press •F12“ to continue.
Resetting ORU warning
5
Select the menu item 'Reset ORU warning' and
press •F8“ to continue.
6
Follow the instructions on the Tester.
7
Establish bus idle.
8
7.1
End operational readiness.
7.2
Disconnect the PIWIS Tester from the vehicle.
7.3
Switch off and disconnect the battery
charger.
7.4
Get out and lock the vehicle.
7.5
Keep the driver's key outside of the transmitter range.
7.6
Wait for at least two minutes.
Resetting ORU warning
Check fault status.
8.1
Establish operational readiness.
8.2
Check whether the error messages are reset in the instrument cluster and central display. If
not, repeat the procedure.
8.3
End operational readiness.
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Re-programming Over the Air (OTA) control unit
NOTICE
Using an older version of the PIWIS Tester software
•
Measure is ineffective
Always use the current version of the PIWIS Tester software for control unit programming and coding.
Work
Procedure:
Information
It is imperative that the PIWIS Tester remains online during control unit programming so that backup documentation of the software versions installed on the control units before and after programming is sent
to the Porsche After Sales systems.
1
Search for the relevant OTA campaign number OTA campaign number and Additional Information
button -1- for the control unit in PCSS (Porsche Central Service System) and select the Additional
Information button OTA campaign number and Additional Information button -2-.
OTA campaign number and Additional Information button
2
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Note the programming code Programming code and PIWIS Tester software version -1- and
observe the required PIWIS Tester software version Programming code and PIWIS Tester
software version -2-.
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Programming code and PIWIS Tester software version
3
Re-program the Over the Air (OTA) control unit.
The basic procedure for programming a control unit is described in the Workshop Manual
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming - section
on "Programming"'.
Specific information on control unit programming in the context of this Technical Information:
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 sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided programming
sequence.
During the programming sequence, the Over the Air
(OTA) control unit is re-programmed and then automatically re-coded.
Do not interrupt programming.
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Software version programmed during this
campaign:
Following control unit programming, the software
version can be read out of the Over the Air (OTA)
control unit in the menu 'Extended identifications'
using the PIWIS Tester.
Procedure in the event of error messages
appearing during the programming
sequence:
Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming - section on
"Fault finding"'.
Procedure in the event of abnormal termination of control unit programming:
Repeat control unit programming by restarting
programming.
Information
If the Over the Air (OTA) control unit cannot be activated or re-programmed following two attempts with
the PIWIS Tester, it must be replaced, see Workshop Manual '919855 Replacing Over the Air control
unit'.
Parts required if necessary
Parts Info:
Part No.
Designation
Qty.
9J1907018* 1)
Control unit for online services
1 ea.
1) current part number available in PET2
Concluding work
Work Procedure: 1
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Carry out general subsequent work for control unit programming as described in Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming using the PIWIS
Tester - section on "Subsequent work"'.
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Technical Information
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Invoicing
Invoicing:
Information
Please calculate the costs for the additional effort using a separate warranty claim in accordance with
PAG specifications. Also enter the campaign number as a remark.
Then get in touch with your contact person at Technical Supportusing a PRMS ticket (PRMS Contact
Group at Porsche AG: PAG_Campaign_TI_SY_Support) so that the campaign can be closed on this
vehicle.
To guarantee fast and efficient processing, the PRMS ticket must contain the following information:
References:
•
Vehicle identification number
•
Campaign number
Workshop Manual '919855 Replacing Over the Air control unit'
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'
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.
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TSB/Document ID: No. 192-20
Replacement Service Bulletin Number:
MFR Communication Date: 2021-06-29
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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