No. 40-23-1

Service
Technical Information
40/23
ENU
APA2
9
APA2 - Re-Programming or Coding Instrument Cluster (Stop Delivery / Recall Campaign)
Model Line:
911 (992)
Model Year:
As of 2020 up to 2023
Country:
Puerto Rico
Concerns:
Instrument cluster control unit
Cause:
Due to a software error in the instrument cluster, the function ‘initial belt warning’ is not
displayed in accordance with local legal requirements on the affected vehicles.
If occupants are not buckled up when the ignition is switched on, the belt warning symbol in the
instrument cluster is displayed permanently and does not flash as required. There is also no acoustic
warning.
Action:
Re-code instrument cluster using an updated data record.
Information
Every vehicle is assigned to exactly one campaign scope.
To find out which scope is assigned to the vehicle, see PCSS Vehicle Information.
Integration Test: As the campaign is market-specific, the customer service integration test shows a green result
regardless of implementation. The implementation must be checked using the extended identification in
the necessary control unit.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required tools
Tool:
•
•
9900 - PIWIS Tester 3/4
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 battery charger 90 A
Re-coding the instrument cluster
Work Procedure: 1
Re-code instrument cluster control unit.
The basic procedure to be followed for coding the control unit is described in the Workshop Manual:
 Workshop Manual 'Basic instructions and procedure for control unit programming using the PIWIS
Tester'
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Service
APA2
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Technical Information
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For specific information on control unit coding during this campaign
Required PIWIS Tester software version:
41.800.010 (or higher)
Type of control unit coding:
Control unit coding using the ‘Automatic coding’
function for the control unit:
‘Instrument cluster’ control unit –
‘Coding/programming’ menu – ‘Automatic
coding’ function.
Read and follow the information and instructions
on the PIWIS Tester during the guided coding
sequence.
Coding sequence:
Do not interrupt coding.
When coding is complete, the message ‘Coding has
been completed successfully’ is displayed and a tick
appears in the “Status” box.
Procedure if control unit coding is not
successful:
2
Repeat control unit coding.
Read out and delete the error memories of all control units.
2.1
In the control unit selection (‘Overview menu’) press •F7“ to call up the Additional menu.
2.2
Select the function “Read all error memories and delete if necessary” and press •F12“
(‘Next’) to confirm.
3
Perform a test drive. During the test drive, ensure that the belt warning symbol in the instrument
cluster flashes continuously and that an acoustic warning occurs. If the “initial belt warning” is not
emitted as required, repeat control unit coding.
4
Enter the campaign in the Warranty and Maintenance booklet.
Warranty processing
Information
The specified labor time was determined specifically for carrying out this campaign and includes all
necessary preliminary and subsequent rework.
The labor time may differ from the working times published in the Labor Operation List in the PCSS.
Scope 3:
Re-coding the instrument cluster
•
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Scope 1 and 2 are not relevant for this vehicle type.
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Service
Technical Information
40/23
ENU
APA2
9
Labor time:
Re-coding instrument cluster control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memories
Labor time: 47 TU
 Damage Code APA2 099 000 1
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.
© 2023 Porsche Cars North America, Inc.
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