NHTSA ID Number: 10165160
Manufacturer Communication Number: 122-A5P5M-09
TSB/Document Date: 2019-09-23
Summary
Instructions for reprogramming the High Voltage Control Unit on Panamera S E-Hybrid
models in the event of a red or yellow hybrid warning message.
Service
Technical Information
66/19
2
2791
Symptom in Vehicle Interior - Red or Yellow Hybrid Warning Message Appears in the
Instrument Cluster: Re-programming control unit for high-voltage power electronics (SY
66/19)
Vehicle Type:
Panamera S E-Hybrid (970)
Model Year:
As of 2014 up to 2016
Subject:
High-voltage power electronics
Symptom:
•
•
ENU
The red warning message "Hybrid system failure" or the yellow warning message "Hybrid system
fault" appears in the instrument cluster. Hybrid system warning messages
The vehicle no longer starts the engine from Start Stop mode; it can only start driving after the
ignition has been switched off and on again.
Hybrid system warning messages
Cause:
•
•
Remedial
Action:
Due to a software error in the high-voltage power electronics, a fault memory entry (P0A1B00 High-voltage power electronics – function restriction) can be set at times in the control unit for
high-voltage power electronics, resulting in the symptoms described here. The fault memory entry is
deleted by switching the ignition off and on again.
A highly discharged high-voltage battery increases the probability that the fault memory entry will be
set.
In the event of a customer complaint and if a software version lower than "P630" is installed in the control
unit for high-voltage power electronics, re-program the control unit for high-voltage power electronics.
AfterSales
Aug 29, 2019
Page 1 of 4
2
Service
2791
ENU
Technical Information
66/19
Information
The total time required for control unit programming is approx. 5 minutes.
Tools:
•
•
9900 - PIWIS Tester 3 with installed PIWIS Tester software version 38.600.000 (or higher)
Battery charger with a current rating of at least 90 A.
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 commencing work, connect a suitable battery charger with a charging current of at least 90 A to
the jump-start terminals in the engine compartment.
Disconnect electric plug connection for the fan blower to prevent the blower from coming on during
control unit programming.
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 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
Aug 29, 2019
Page 2 of 4
Carry out general preliminary 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 "Preliminary work"'.
AfterSales
Service
Technical Information
66/19
ENU
2791
2
Carrying out control unit programming
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 using the
PIWIS Tester - section on "Programming"'.
Specific information on control unit programming in the context of this Technical Information:
Required PIWIS Tester software version:
38.600.000 (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:
Q1L4F
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided programming
sequence.
The control unit for high-voltage power electronics is
re-programmed during the programming sequence.
Do not interrupt programming.
Programming time (approx.):
5 minutes
Software version programmed during this
campaign:
P630
Procedure in the event of error messages
appearing during the programming
sequence:
Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - 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 control unit for
high-voltage power electronics in the 'Extended
identifications' menu using the PIWIS Tester.
AfterSales
Aug 29, 2019
Page 3 of 4
2
Service
2791
ENU
Technical Information
66/19
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:
The work involved is invoiced under the labor operation:
I No.
APOS
Labor operation
27912565
Programming power electronics
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
27910
High-voltage power electronics
Damage type (SA4)
4022
No signal
References:
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.
© 2019 Porsche Cars North America, Inc.
Aug 29, 2019
Page 4 of 4
AfterSales
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
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: 122-A5P5M-09
Replacement Service Bulletin Number:
MFR Communication Date: 2019-08-29
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [2026 Top-Tier Hardware and Software Upgrade]: Topdon ArtiDiag900 Lite scanner has enhanced hardware and latest features, including Android 11.0, 5x faster CPU, 10000mAh battery for 12 hours of continuous operation, stable wireless diagnosis with Bluetooth 5.0, 8-inch touchscreen. Added bi-directional control, wireless diagnosis, battery testing (optional), and DTC repair guide
- [TOPDON Bidirectional Scan Tool]: This bidirectional obd2 scanner sends commands to the vehicle's ECU for active testing, enabling users to accurately and quickly locate faulty components such as injectors, coolant pumps, windows, wipers, headlights, mirrors, etc. The bidirectional control scanner is the ideal choice for workshops/automotive repair shops as it significantly reduces mechanic's diagnostic time.
- [Wireless Bluetooth Diagnostic Experience]: The AD900 Lite scan tool comes with a Bluetooth 5.0 VCI, supporting a wireless diagnostic range of up to 33 feet (10 meters), allowing you to diagnose without being confined to cables or tight spaces. Stable and fast wireless diagnosis provides a comfortable repair environment. It also offers VCI cables to increase connectivity options.
- [DTC Repair Guide Function]: Easily diagnose issues with your vehicle and receive guidance on repairs with the topdon scan tool's fault code definitions for all systems,maximize your diagnostic capabilities. This function is compatible with Chrysler
/Dodge/Jeep/Fiat 2010-2014 and expanding with continual updates,the AritDiag 900 Lite car diagnostic scanner is the must-have tool for any technician or DIY enthusiast. - [OE-Level Full System Diagnostics]:AritDiag900 Lite full system diagnostic scanner can scan ALL available modules(Engine, Transmission, Airbag, ABS, ESP, TPMS, Gateway, Steering, Radio, Air conditioning, ect.) to✔read ECU info, ✔read/clear codes, ✔view live data stream, ✔retrieves freeze-frame, ✔perform active tests, and more. With just a simple click, it provides you with accurate and in-depth diagnostics.
- Bi-Directional Control, Quickly Locate Problems: Turn your phone into a professional diagnostic tool. You can send commands from your phone to the ECU to test injectors, cooling fans, headlights, A/C clutch, windows, wipers, and more. See which one doesn't respond. Helps you quickly locate the problem and save time. No need to tear things apart, avoid blind disassembly.
- Flexible Subscription, Choose Advanced Features as Needed: TopScan Lite provides free-for-life access to core diagnostics, including full system scan, code reading, performance tests, and repair information. After purchase, advanced features (bi-directional control, service operations, live data, code clearing, and AI functions) are free-for-the-first-year. After the first year, if you want to use advanced features, you need to subscribe on a monthly, quarterly, or yearly basis. As new models and reset functions are updated, the tool will also be continuously upgraded.
- Full System Diagnostics, No Fault Hides: Unlike basic diagnostic tools that only cover 4 systems, TopScan can scan all systems. Read and clear trouble codes, view live data streams, and generate a complete vehicle health report – all issues are clear at a glance. Covers 10,000+ vehicle models and is compatible with 99.99% of vehicles.
- AI Assistant - TopFix: Think of TopFix as your personal AI mechanic. It leverages a repair database and OEM data to deliver clear, step-by-step repair solutions. Features include AI Q&A, one-click translation, and a full repair log, making your diagnostic process simpler and more efficient.
- 8+ Hot Resets, Keep Your Car in Top Shape: One-tap resets for oil, throttle, EPB, steering angle, DPF, ABS, BMS, and airbag. It enables car owners to easily perform essential maintenance, ensuring the vehicle stays in optimal condition and extends its service life.
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.