How to Use Foxflash Read VW DCM3.7 ECU via JTAG

Foxflash programmer’s new feedback:

It is a dcm3.7 vw ecu, the customer had modifications done by a friend and he thought it was lighter.
After opening the ecu I found that Inductor to jump on the lines CAN H / CAN L.
Reading diagnostic suitcase with godiag.

Foxflash read ID via OBD with godiag ECU GPT adapter.
Read and write int flash in JTAG mode.

Connection godiag no communication. Opening of the ecu test on several condo red ok black ok test line bus can from pin 67 68 towards the selfs in common mode ok after the selfs signal break 120ohm disturbed.

Chrysler GPEC2A ECU Unlock Now on OBDSTAR DC706

The OBDStar DC706 ecu tuning tool recently added a new feature that has sparked excitement among automotive enthusiasts and tuners: an ECU Unlock tab for the Chrysler GPEC2A ECM. This update suggests a streamlined way to unlock ECUs for tuning, potentially eliminating the need for manual hex editing or file transfers. But does it actually work with popular tuning software like HP Tuners? Let’s dive into the findings.

The Promise of a One-Click Unlock

Traditionally, unlocking a GPEC2A ECU for tuning involved cumbersome steps:

• Transferring files to a USB
• Manually editing hex files
• Scrolling through lines of code to make adjustments

The new "Unlock ECU" tab in the OBDStar DC706 software hints at a simplified process. The hope was that this feature would allow users to bypass manual modifications, making it easier to prepare the ECU for tuning with third-party software like HP Tuners.

Testing the Unlock Feature with HP Tuners

To verify its effectiveness, a user conducted a series of tests:

1.Initial Attempt:

• The "Unlock ECU" function was executed, and the process completed successfully.

• However, when attempting to write a tune via HP Tuners, the ECU remained locked, displaying an "Incompatible PCM Software" error.

2.Second Attempt (Boot Mode):

• After consulting the guide (which initially went unread), the user tried unlocking in boot mode using a P004 adapter and a 120-ohm resistor.
• Despite following the correct procedure, the unlock still did not allow HP Tuners to write to the ECU.

Manual Unlock Success:

• As a last resort, the user manually unlocked the ECU using traditional methods (hex editing).
• This time, HP Tuners accepted the file, confirming that the manual process still works while the OBDStar’s unlock feature fell short.

Why Didn’t the OBDStar Unlock Work?

The exact reason remains unclear, but possible explanations include:

• The unlock may only work with OBDStar’s proprietary tuning tools, not third-party software like HP Tuners.
• The feature might still be in beta, requiring further refinement.
• There could be additional steps not covered in the initial testing.

Conclusion: A Step Forward, But Not a Complete Solution

While the OBDStar DC706’s "Unlock ECU" feature is a welcome addition, it currently does not appear to work seamlessly with HP Tuners. For now, tuners may still need to rely on traditional manual unlocking methods.

However, this update suggests that OBDStar is moving toward simplifying ECU tuning, and future software revisions could improve compatibility. For those eager to test it, staying updated on official releases and user feedback will be key.

www.iecutool.eu

Hextag II or Xhorse Multi Prog: Which Tool to Choose

This article explores the key differences between the Hextag II and Xhorse Multi-Prog, providing insights to help automotive technicians, and programmers choose the right tool for their requirements.

Overview of Hextag II

The Hextag II is a professional-grade automotive programming tool known for its versatility and advanced capabilities. It is widely used for ECU cloning, chip tuning, and immobilizer programming, particularly for European vehicles like BMW, Audi, and Volkswagen. The Hextag II is recognized for its robust software, extensive vehicle coverage, and ability to handle complex tasks such as mileage correction and module repairs (e.g., BMW FRM). It is often marketed as a premium solution, with a focus on reliability and precision.

Overview of Xhorse Multi-Prog

The Xhorse Multi-Prog is the second-generation programmer from Xhorse, succeeding the VVDI Prog. It is designed for reading, writing, and cloning ECUs and TCUs, as well as handling immobilizer modules, EEPROMs, and dashboards. The Multi-Prog integrates seamlessly with other Xhorse tools like the VVDI2 and Key Tool Plus, offering a user-friendly interface, high-speed USB communication, and advanced features like batch programming and checksum correction. It is positioned as a cost-effective yet powerful tool for modern vehicles.

Key Differences Between Hextag II and Xhorse Multi-Prog

1. Functionality and Features

• Hextag II: The Hextag II excels in specialized tasks such as ECU cloning, chip tuning, and module repairs. It offers automated features for complex processes, like BMW FRM (Footwell Module) repairs, where users can simply press a "repair" button to restore functionality without manual data manipulation. It also supports advanced mileage correction, key programming, and immobilizer functions, making it a go-to tool for high-end diagnostic tasks. The Hextag II is particularly strong in handling Bosch ECUs (e.g., EDC17, MG1) and VAG systems (e.g., Simos 18.1).
• Xhorse Multi-Prog: The Multi-Prog is a more versatile all-in-one programmer, capable of reading, writing, and cloning ECUs, TCUs, and immobilizer modules. It supports a wide range of chips, including Renesas, Motorola, NXP, and Infineon, and offers features like batch programming, expert mode, and third-party plug-in support. Unlike the Hextag II, it includes a free MQB48 license (when paired with VVDI2 or Key Tool Plus) and built-in checksum correction for EDC16/EDC17 ECUs. It also supports advanced vehicle engine data processing for MEDC17 and EDC17 systems.

Comparison: The Hextag II is more focused on specialized, high-precision tasks with automated workflows, while the Multi-Prog offers broader functionality, including TCU cloning and batch programming, making it suitable for diverse programming needs.

2. Vehicle and ECU Compatibility

• Hextag II: The Hextag II has extensive coverage for European vehicles, particularly BMW, Mercedes-Benz, and VAG brands (Volkswagen, Audi, Skoda). It supports a wide range of Bosch, Continental, and Siemens ECUs, including newer models like MG1 and MD1. It is also compatible with specific protocols for reading and writing in boot mode, making it a strong choice for advanced ECU cloning (e.g., Simos 18.1).
• Xhorse Multi-Prog: The Multi-Prog boasts compatibility with a broad spectrum of ECU models from manufacturers like Bosch, Continental, Delphi, Denso, Marelli, and Siemens. It supports VAG (e.g., SIMOS PCR2.1, EDC17c64), BMW (e.g., MSD80, MSV90), Mercedes-Benz, GM, Nissan, Hyundai/Kia, Ford, and Volvo. Additionally, it handles TCUs like Volkswagen DQ200, DQ250, and BMW DKG, which the Hextag II may not cover as comprehensively. The Multi-Prog also supports VAG MQB RH850 dashboards with a dedicated cable.

Comparison: Both tools cover a wide range of vehicles, but the Hextag II is more tailored to European brands with deeper protocol support, while the Multi-Prog offers broader global compatibility, including Asian and American vehicles, and excels in TCU programming.

3. Ease of Use and User Experience

• Hextag II: The Hextag II is designed for professionals who need a streamlined experience for complex tasks. Its software is intuitive, with automated processes that reduce the need for manual configuration. However, its advanced features may require a learning curve for less experienced users. The tool’s high-speed communication and reliable performance make it efficient for time-sensitive jobs.
• Xhorse Multi Prog: The Multi-Prog emphasizes user-friendliness with a high-speed USB interface, smart operation mode, and built-in update software for seamless firmware upgrades. It features a standalone mode for EEPROM reading without PC software and supports data comparison functions to ensure accuracy. Its integration with other Xhorse tools enhances its versatility, but the interface may feel less polished compared to the Hextag II for certain tasks.

Comparison: The Hextag II offers a more polished, automated experience for specific tasks, while the Multi-Prog prioritizes flexibility and ease of integration, appealing to users who work with multiple Xhorse tools.

4. Licensing and Cost

• Hextag II: The Hextag II is a premium tool with a higher price point, often exceeding €750 for the basic pack. Additional licenses or modules (e.g., for specific ECU types or advanced functions) may incur extra costs. Its price reflects its specialized capabilities and robust support for high-end vehicles.
• Xhorse Multi-Prog: The Multi-Prog is significantly more affordable, retailing around $730–$800. It includes a free MQB48 license and BMW Bench Read ISN functionality, reducing the need for additional purchases. Its online updates are free with no annual fee, and it supports third-party plug-ins, potentially lowering long-term costs.

Comparison: The Multi-Prog is a cost-effective option with more inclusive features out of the box, while the Hextag II’s higher price is justified by its premium build and specialized functions.

5. Updates and Support

• Hextag II: The Hextag II receives regular software updates, but its support is often tied to official channels or authorized distributors, which may limit accessibility for some users. Its development focuses on enhancing compatibility with newer ECU models and refining existing protocols.
• Xhorse Multi-Prog: The Multi-Prog benefits from Xhorse’s active development, with frequent software updates and an expanding database. Features like checksum calculation and VAG Simos 18.1 support have been recently enhanced. Xhorse’s customer support is accessible via email, WhatsApp, and forums, and the tool’s integration with the Xhorse app ensures timely updates.

Comparison: The Multi-Prog has a slight edge in update frequency and community support, while the Hextag II offers more targeted updates for specific high-end applications.

6. Cloning and Advanced Programming

• Hextag II: The Hextag II is renowned for its ECU cloning capabilities, particularly for Bosch ECUs like MG1 and Simos 18. It can read and write complete ECU data in boot mode, rivaling tools like Flex and Hexprog. Its ability to handle encrypted chips and perform checksum calculations makes it a top choice for cloning.
• Xhorse Multi-Prog: The Multi-Prog also supports ECU and TCU cloning, with specific strengths in VAG, BMW, and Mercedes-Benz systems. It can read and write ISN (unlike its predecessor, VVDI Prog), clone gearboxes like DQ200 and VL381, and perform data decryption for calculators. Its script function simplifies tasks like BMW CAS4 mileage correction.

Comparison: Both tools are strong in cloning, but the Hextag II has an advantage in handling complex Bosch ECUs, while the Multi-Prog offers broader TCU cloning and script-based automation.

Which Tool Should You Choose?

Choose Hextag II if:

• You specialize in European vehicles, particularly BMW, Audi, or Volkswagen.
• You need a premium tool for automated, high-precision tasks like ECU cloning and module repairs.
• You’re willing to invest in a higher-priced tool for advanced protocols and reliability.

Choose Xhorse Multi-Prog if:

• You work with a diverse range of vehicles, including Asian and American brands.
• You need a cost-effective, versatile tool with TCU cloning and batch programming.
• You already use Xhorse tools and value integration with VVDI2 or Key Tool Plus.

Conclusion

The Hextag II and Xhorse Multi-Prog are both powerful tools in automotive programming, but they cater to different priorities. The Hextag II is a premium, specialized solution for European vehicles, offering automated workflows and robust ECU cloning capabilities. In contrast, the Xhorse Multi-Prog is a versatile, budget-friendly option with broader compatibility, TCU support, and seamless integration with Xhorse’s ecosystem. By understanding your specific needs — whether it’s precision, cost, or vehicle coverage — you can select the tool that best enhances your workflow.

www.iecutool.eu

Compare Launch X-prog3 and Autel XP400 Pro Features

The Launch X-prog3 is on the same level as the autel xp400 pro where it is more limited? in which the Autel is more powerful?

Here is the clue.

• Launch X-Prog3 (GIII)
• A professional immobilizer and key programmer, often used with Launch X431 diagnostic tablets (e.g., X431 V+, Pro5, PAD VII).
• Specializes in ECU/TCU cloning, key programming, and immobilizer functions for a wide range of vehicles.
• Known for its integration with Launch’s ecosystem and built-in features like MQB AKL sync data calculation.

• Autel XP400 Pro
• An advanced key and chip programmer that works with Autel MaxiIM tablets (e.g., IM508, IM608, IM608 Pro).
• Excels in transponder chip reading/writing, immobilizer functions, and ECU/MCU programming.
• Offers standalone capabilities on PC but is most powerful when paired with Autel MaxiIM tools.

Comparison Table

Pros and Cons

Launch X-Prog3

Pros:

• Excellent for ECU/TCU cloning.
• Built-in MQB AKL sync calculator for VW/Audi.
• Seamless integration with Launch X431 tablets.
• Strong for Asian and European vehicles.

Cons:

• Limited standalone functionality.
• Weaker in chip reading compared to Autel.
• Slightly more expensive.

Autel XP400 Pro

Pros:

• Advanced chip reading/writing capabilities.
• Standalone functionality for quick tasks.
• Strong immobilizer features, especially for BMW/Mercedes.
• More affordable.

Cons:

• ECU/TCU cloning not as robust as Launch.
• Full potential requires an Autel tablet.
• Less specialized for VW/Audi MQB systems.

Final Recommendation

The Autel XP400 Pro is generally the better choice for most users due to its versatility, standalone functionality, and slightly lower price. It excels in chip programming and immobilizer tasks, making it ideal for locksmiths and general diagnostic shops. However, if your focus is ECU/TCU cloning, the Launch X-Prog3 is the superior tool, especially when paired with a Launch tablet.

If you’re starting fresh and don’t own either brand’s tablet, consider your primary vehicle types and whether you need standalone capabilities. For a balanced approach, the Autel XP400 Pro paired with an IM508 or IM608 offers excellent value and flexibility.

X-Prog3 has more ECU functions and you can add an adaptor and run it via PC.
XP400Pro can do more IMMO functions and if you can still find it online there is the Auro PC Utility for it as well.

How to Read and Write ME7.9.52 ECU with Foxflash

It is a Toyota Aygo Bosch ECU ME7.9.52.
First try full system read with foxflash, but it was not possible with this ECU, got an error that reading was not possible.
So try boot mode.
ME7.9.52 boot mode
Decat.
Read and Write ok.
Checksum all by foxflash.

Also did a Citroen C1 2010 ME7.9.52 ECU with foxflash software in Boot mode.
Citroën C1 / Peugeot 107 / Toyota aygo use the same ECU type.