No. 169-20

Symptom-based workshop manual
Service
169/20 ENU
9025
9
Symptom in Vehicle Interior - Failure of all Displays in the Instrument Cluster:
Re-Programming Instrument Cluster Control Unit (SY 169/20)
Revision:
This bulletin is replacing bulletin Group 9, 169/20 dated November 25, 2020.
Model Line:
911 Carrera (992)
Model Year:
2020
Concerns:
Instrument cluster control unit
Symptom:
In the instrument cluster, the displays Speed & Assist, tachometer, digital speedometer, Car & Info, fuel
level and coolant temperature have failed.
Cause:
Excessively long display texts in conjunction with other complex operations can result in this fault type.
Remedial
Action:
In the event of a customer complaint, check the software version and re-program the instrument cluster
with the appropriate programming code.
Information
If the vehicle is affected by workshop campaigns AKC1 or WKL7 and they have not yet been carried out,
these must be carried out in advance of the workshop visit.
Otherwise, programming cannot be performed.
Information
The total time required for control unit programming is approx. 100 minutes.
Required tools
Information
The new 911 (992) is equipped 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.
For further information about the battery chargers to be used, see  Workshop Manual '270689
Charging battery/vehicle electrical system'.
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Tool:
ENU
•
•
Symptom-based workshop manual
169/20
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. VAS 5908 battery charger
90A
9900 - PIWIS Tester 3 with PIWIS Tester software version 39.850.010 (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 getting started, connect a suitable battery charger with a current rating of at least 90 A to the
jump-start terminals.
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, 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 vehicles with Porsche Entry & Drive, programming cannot be started
or will be interrupted.

Switch on the ignition using the original driver’s key. To do this, replace the control unit in the ignition lock
with the original driver’s key if necessary.
Work Procedure: 1
2
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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"'.
Read out the software version.
2.1
Connect the PIWIS Tester to the vehicle and switch it on.
2.2
Switch on ignition.
2.3
Start diagnostics.
2.4
Select "Instrument cluster" control unit.
2.5
Select the "Extended identifications" tab.
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169/20 ENU
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Check the software version.
•
•
If the software version is '0206', re-program the instrument cluster control unit.
If the software version is already '0215', end of action required.
Re-programming instrument cluster 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.
Work Procedure: 1
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:
Required PIWIS Tester software version:
39.850.010 (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:
X5A5L
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided programming
sequence.
During the programming sequence, the instrument
cluster control unit is re-programmed and then automatically re-coded.
Do not interrupt programming.
Programming time (approx.):
100 minutes
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Symptom-based workshop manual
169/20
Software version programmed during this
campaign:
0215
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.
Following control unit programming, the software
version can be read out of the instrument cluster
control unit in the  'Extended identifications' menu
using the PIWIS Tester.
Concluding work
Work Procedure: 1
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"'.
Invoicing
Invoicing:
For documentation and warranty invoicing, enter the labor operations and PQIS coding specified below in
the warranty claim:
APOS
Labor operation
90250110
Checking instrument cluster
90252555
Programming instrument cluster
I No.
PQIS coding:
Location (FES5)
90250
Instrument cluster
Damage type (SA4)
1611
does not function
References:
 Technical Information '9X00IN AKC1 Stop Delivery/Recall campaign - Re-programming operator
control unit in front centre console and updating software for various control units'
 Technical Information '9X00IN WKL7 Workshop campaign - Updating software for various control units'
 Workshop Manual '270689 Charging battery/vehicle electrical system'
 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'
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169/20 ENU
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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.
© 2020 Porsche Cars North America, Inc.
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