NHTSA ID Number: 10191726
Manufacturer Communication Number: No. 39-21
TSB/Document Date: 2021-05-05
Summary
Instructions on how to reprogram the Central computer (PCM) using an SD card.
Service
Technical Information
39/21
ENU
9152
9
Complaint - Various Software Errors: Re-Programming Central Computer (PCM) Using SD
Card (39/21)
Vehicle Type:
Macan (95B)/Macan S (95B)
Model Year:
2019
Concerns:
Central computer (PCM 5.1)
Information:
Optimized software is available for the Porsche
Communication Management (PCM) system.
The following optimizations will be implemented after programming:
•
•
•
"Avoid vignette" function does not function after parking the vehicle
"Sport Chrono" function is more robust
Fan noise from central computer (PCM)
Action required: In the event of a customer complaint, re-program the central computer using an SD card.
Information
The total time required for control unit programming is approx. 40 minutes.
Software:
Control unit
SW (old)
SW (new)
Vehicle assignment
Central computer
2478 or 2491
9830
ER1/ER2/ER3/ER4
Central computer
2478 or 2491
9831
ER5/ER6/ER7/ER8
AfterSales
Apr 8, 2021
Page 1 of 5
9
Service
9152
ENU
Technical Information
39/21
Required tools and parts
Parts Info:
Information
The PCM update is performed using a SD memory card. You can create the SD card yourself.
To do this, download the software using the SD card tool PiUS (Porsche integrated Update Service) and
install it on a blank SD card.
To use PiUS you can order blank 16GB SD cards with the part number 000 721 990 WW 999.
Pay particular attention to the following:
•
Choose the part number that corresponds to the M-no. (ER1 – ER8) in the table.
•
For using the software tool, one blank or re-writable SD card is required for each software.
•
The software available in PiUS must only be used in accordance with the instructions provided in a
Technical Information (TI) published for this purpose.
The software (SD cards) mentioned here must only be used on vehicles with the (old) software 2478 or
2491.
Damage to the control unit cannot be ruled out if the SD cards are used on other vehicles.
You will find further information on how to install and use the PiUS software tool in the PPN portal under
"PiUS (Porsche integrated Update Service) goes live".
Information
If you are unable to download the software using the SD card tool PiUS (Porsche integrated Update
Service) and install it on a blank SD card, the specified SD memory card below can be ordered.
The SD memory card for the PCM update must be re-used as part of the workshop equipment
and remains at the Porsche dealer. The SD memory card must not therefore be left in the vehicle or
handed over to the customer.
Tools:
Apr 8, 2021
Page 2 of 5
Part No.
Designation
Vehicle assignment
Software
95B919360C
SD card
M-no. ER3 (NAR)
9830
•
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 40.000.010 (or higher) installed
•
SD memory cards for PCM update
AfterSales
Service
Technical Information
39/21
ENU
9152
9
Preparatory work
NOTICE
Fault entry in the fault memory and control unit programming aborted due to low voltage.
•
Increased power consumption during diagnosis can cause a drop in voltage, which can result in one or
more fault entries and abortion of the diagnostic process.
Before starting control unit diagnosis, 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 diagnosis may be aborted.
During control unit diagnosis, always connect the PIWIS Tester to the vehicle communication module (VCI)
via the USB cable.
Information
The procedure described here is based on the PIWIS Tester 3 software version 39.900.015.
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.
1
Connect a battery charger with a current rating of at least 90 A, e.g. battery charger 90A, to the
jump-start terminals in the engine compartment and switch it on.
2
Switch on the ignition using the original driver's key.
For vehicles with "Porsche Entry & Drive", do this by replacing the component in the ignition lock with
the original vehicle key if necessary.
3
Connect 9900 - PIWIS Tester 3 to the vehicle communication module (VCI) via the USB cable.
Then connect the communication module to the vehicle and switch on the PIWIS Tester.
4
Switch on 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
Read out the fault memory of the PCM and delete it if necessary.
AfterSales
Apr 8, 2021
Page 3 of 5
9
Service
9152
ENU
Technical Information
39/21
Programming central computer (PCM)
NOTICE
Using the SD cards on vehicles that are not assigned to this TI
•
Risk of damage to control unit
Use the specified SD cards only for the vehicles assigned to the TI.
Work Procedure: 1
Insert SD card for the PCM update into the SD card slot.
Information
If the software update is interrupted or if error messages are displayed (e.g. as a result of read errors),
the update must be repeated.
2
Start the PCM software update using the PIWIS Tester.
2.1
Select the PCM control unit in the control unit selection screen ('Overview' menu) and press
•F12“ ('Next') to confirm your selection.
2.2
Once the PCM control unit has been found and is displayed in the 'Overview', select the
'Maintenance/repairs' menu.
Installing PCM software update
2.3
Select the 'Install software update' function and press •F12“ ('Next') to perform the
software update Installing PCM software update.
2.4
Confirm the information that is displayed by pressing •F12“ ('Next').
2.5
After meeting the preconditions, confirm by ticking the 'Status' column. Then, press •F12“
('Next') to continue.
Entering PCM programming code
2.6
Enter the programming code N9S7H in the relevant column Entering PCM programming
code and press •F12“ ('Next') to confirm Entering PCM programming code.
2.7
Press •F8“ ('Start') to start.
2.8
After checking the software data, press •F8“ ('Start') to start programming.
The time required for the update depends on the respective vehicle equipment and
can be up to 40 minutes.
The PCM is restarted several times during the update.
2.9
Apr 8, 2021
Page 4 of 5
Once the update is complete, an overview is displayed showing processes that have been
completed successfully marked with a tick in the Status box. Press •F12“ ('Next') to
confirm.
AfterSales
Service
Technical Information
39/21
ENU
9152
9
Software version programmed during this campaign:
ER1 – ER4: 9830
ER5 – ER8: 9831
•
•
Following control unit programming, the software version can be read out of the PCM control unit in the
'Extended identifications' menu using the PIWIS Tester.
3
Remove inserted SD card from the SD card slot.
Concluding work
1
Carry out general subsequent work for control unit programming as described in Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming' under Workshop
Manual '9X00IN General subsequent work'.
Invoicing
For documentation and warranty invoicing, enter the labor operations and PQIS coding specified below in
the warranty claim:
APOS
Labour operation
91522590
Programming central computer
I No.
PQIS coding:
Location (FES5)
91520
Central computer
Damage type (SA4)
1612
Does not function in some cases
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.
AfterSales
Apr 8, 2021
Page 5 of 5
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: No. 39-21
Replacement Service Bulletin Number:
MFR Communication Date: 2021-04-08
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 |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.