Solved: YANHUA ACDP A51D License BMW Clear ISN Data Error

Problem: I’ve already purchased the A51D License on YANHUA Mini ACDP 2 for BMW, but it showed a failure message during the test: "Clear ISN data error".

What’s going on? Please help.

Root Cause

The error typically occurs because the A51D License is not the correct authorization for this specific function. Instead, the Module 40 Authorization License is required to perform ISN reset operations on BMW E, F, and G Chassis platforms.

Solution

To successfully clear the ISN data without errors, follow these steps:

1. Ensure you have the Module 40 Authorization License installed. This license can be purchased separately and is essential for advanced module operations.

Get Module 40 Authorization License:

https://www.obd2shop.co.uk/wholesale/yanhua-acdp-module40-bwm-8hp-e-f-g-ews-data-reset.html

2. Within the YANHUA Mini ACDP software, navigate to the transmission-related functions and select:

"8HP Reset EWS (E/F/G Chassis, Bench)"

3. Proceed with the operation. This option is compatible with the Module 40 license and should execute without the "Clear ISN data error."

Conclusion

The "Clear ISN data error" is a licensing issue, not a device malfunction. By using the Module 40 Authorization License and selecting the correct function in the tool, you can successfully perform ISN resets on supported BMW chassis.

Special thanks to www.obd2shop.co.uk for providing the solution and licensing details.

Solved: Yanhua ACDP 2016 BMW G12 750i "Obtain password error"

Problem: When using the YANHUA Mini ACDP to program a 2016 BMW G12 750i for an all keys lost situation, the newly programmed key starts the engine, and the remote control works correctly. However, in the final step - synchronizing the EGS (Electronic Gearbox Control) and EWS (Immobilizer) - the tool shows an error:

"Obtain password error, please contact technical support!"

The system and immobilizer information were read, but the process could not be completed.

Solution

This YANHUA ACDP error often occurs on BMW models with two engine control units. If the EGS password cannot be retrieved, it usually means the incorrect engine control unit data was read.

For BMW vehicles with two engines during an all keys lost procedure, you must read the EEPROM data from the main engine control unit, not the secondary one. Reading data from the wrong unit will result in a password read failure.

Ensure you identify and read the data from the correct ECU to complete the EGS/EWS synchronization.

Technical Support

Email: Sales@OBD2shop.co.uk

WhatsApp: +86 13983755934

Telephone: +86 13983755934

WeChat: +86 13983755934

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Toyota R7F701441 Mileage Correction with ACDP Module 41

This article provides a step-by-step guide on how to perform mileage correction on a Toyota R7F701441 instrument cluster via OBD/CAN method using the Yanhua ACDP 2 and ACDP Module 41.

Preparation:

As shown in the picture, connect the ACDP device to the vehicle’s OBD interface.

Open the ACDP application and ensure that the ACDP programmer is bound (check the top right corner of the screen).

Entering the Correction Menu

In the ACDP app, navigate to:

"Module" → "TOYOTA ODO" → "OBD/CAN Reset mileage"

Then, select the instrument model. This demonstration uses the R7F701441 instrument as an example.

Toyota S6J3001 mileage correction can refer to the following article:

http://blog.obd2shop.co.uk/toyota-s6j3001-mileage-correction-with-acdp-module-41/

Step 1: Identify Info

Connect ACDP to the OBD-II port.

Turn on the ignition — the ODO display must be lit.

Click "Identify Info".

The system will read instrument information. Wait until the process completes.

Step 2: Reset KM Data

Click "Reset KM data".

The system will attempt to read ODO data.

If an error occurs indicating that programming mode cannot be entered, remove the instrument cluster from the dashboard and proceed with the bench wiring method as described in the ACDP help documentation.

Step 3: Bench Connection & Data Reset

After connecting the ACDP to the instrument via the bench method, select again:

"R7F701441 ODO" → "Reset KM data"

The system will prompt you to back up the original ODO data. Save the file with a name ending in Orig.bin and note the backup path and time.

Enter the new mileage value.

A warning will appear:

“Programming is about to begin. Do NOT power off or unplug the device!”

Click "Continue" to start the process.

Once completed, the system will confirm: “Reset mileage finish.”

Step 4: Verify Changes

Click "Identify Info" again to check the instrument information.

The mileage should now be updated successfully.

Video Tutorial

For a visual demonstration, please watch the video:

https://www.youtube.com/shorts/HdDovtuxZ-I

Notes:

Always back up the original data before programming.

Use anti-static precautions when handling the instrument cluster.

Ensure stable power and connection during writing.

For further support, refer to the ACDP user manual or contact technical support.

www.obd2shop.co.uk

Toyota S6J3001 Mileage Correction with ACDP Module 41

This article provides a step-by-step guide on how to perform mileage correction on a Toyota S6J3001 instrument cluster using the ACDP and ACDP Module 41.

Preparation:

As shown in the picture, connect the ACDP device to the vehicle’s OBD interface.

Open the ACDP application and ensure that the ACDP programmer is bound (check the top right corner of the screen).

Entering the Correction Menu

In the ACDP app, navigate to:

"Module" → "TOYOTA ODO" → "OBD/CAN Reset mileage"

Then, select the instrument model. This demonstration uses the S6J3001 instrument as an example.

Step 1: Identify Info

Connect ACDP to the OBD-II port.

Turn on the ignition — the ODO display must be lit.

Click "Identify Info".

The system will read instrument information. Wait until the process completes.

Step 2: Reset KM Data

Click "Reset KM data".

The system will attempt to read ODO data.

If an error occurs indicating that programming mode cannot be entered, remove the instrument cluster from the dashboard and proceed with the bench wiring method as described in the ACDP help documentation.

Step 3: Bench Connection & Data Reset

After connecting the ACDP to the instrument via the bench method, select again:

"S6J3001 ODO" → "Reset KM data"

The system will prompt you to back up the original ODO data. Save the file with a name ending in Orig.bin and note the backup path and time.

Enter the new mileage value.

A warning will appear:

“Programming is about to begin. Do NOT power off or unplug the device!”

Click "Continue" to start the process.

Once completed, the system will confirm: “Reset mileage finish.”

Step 4: Verify Changes

Click "Identify Info" again to check the instrument information.

The mileage should now be updated successfully.

Video Tutorial

For a visual demonstration, please watch the video:

https://youtu.be/-tOxF4RO_E4

Notes:

Always back up the original data before programming.

Use anti-static precautions when handling the instrument cluster.

Ensure stable power and connection during writing.

For further support, refer to the ACDP user manual or contact technical support.

www.obd2shop.co.uk

Mastering Toyota Cluster Mileage Correction with Yanhua ACDP Module 41

In the field of automotive repair and adjustment, odometer (mileage) correction is a highly specialized task. It’s often required in scenarios such as instrument cluster replacement, ECU swap, or restoring a repaired dashboard. The Yanhua ACDP system, with its modular design and user-friendly interface, has become a trusted solution for professionals worldwide.

Today, let’s take a closer look at ACDP Module 41, which is specifically designed for Toyota clusters using R7F7014xx and S6J3xx chips.

Two Versions Available:

1. Module 41 License (for users who already own Module 35)

If you already have Module 35, you only need to purchase the Module 41 license to unlock mileage correction features. This is a cost-effective solution since you don’t need to buy extra hardware.

2. Full Module 41 Package (standalone)

For new users who don’t own Module 35, the standalone Module 41 is the right choice. It includes the necessary authorization and works independently for Toyota mileage correction.

Supported Chip Types:

Both versions of Module 41 support the following instrument cluster chips:

1. Support Toyota S6J3001 (2019-) encrypted/unencrypted chips instrument mileage correction via OBD/CAN method.

2. Support Toyota R7F701401 (2021-) encrypted/unencrypted chips instrument mileage correction via OBD/CAN method.

3. Support Toyota R7F701441 encrypted chips instrument mileage correction via the OBD/CAN method.

Supported Vehicle List:

Please note that the car model list below is for reference purposes only. If you have any questions, please feel free to contact us.

Buying Guide

Conclusion:

Yanhua ACDP Module 41 is a powerful and flexible tool for Toyota mileage correction, offering options that suit both existing ACDP users and newcomers. Whether you’re maintaining, repairing, or replacing Toyota clusters, this module provides a safe and efficient solution.

www.obd2shop.co.uk

Yanhua BMW BDC2 Keys Learning Bench Platform: All Keys Lost Solution

The YANHUA Mini ACDP2 with Module 38 can now fully handle BMW BDC2 All Keys Lost scenarios. This advanced solution, combined with the BDC2 Bench Test Platform and LF Smart Key Antenna + Remote Control Receiver, streamlines key programming for BMW vehicles without requiring module reinstallation in the car.

Why choose the BMW BDC2 Platform?

The YANHUA BMW BDC2 Keys Learning Bench Platform is a game-changer for automotive locksmiths and technicians. It simplifies key programming by allowing off-car operations, saving time and effort.

Key Features

1. It contains the BMW BDC2, and all keys have lost authorization (used with module 38).

2. Enables bench learning of BDC2 keys without reinstalling the module in the vehicle.

3. Test the key emergency function to verify ignition capability and successful key learning.

4. Supports connection of smart antennas and a remote control receiver for testing:

1) Key remote control functions;

2) Keyless entry systems.

5. Compatible with BDC2 instrument and DME module connections.

This platform is ideal for professionals seeking efficiency, accuracy, and versatility in BMW key programming.

Frequently Asked Questions (FAQs)

Q1: Can YANHUA ACDP2 perform All Keys Lost on BMW BDC2?

A: Yes! The YANHUA Mini ACDP2 + Module 38, combined with the BDC2 Bench Platform, fully supports All Keys Lost programming.

Q2: Is the BDC2 Bench Platform compatible with other devices?

A: Yes, it can connect to any device that supports this function.

Q3: How do I read the ISN (Immobilizer Security Number)?

A: You’ll need the Module 3 + B48 Bench Interface Board to read the ISN.

Q4: What if the DME module is locked?

A: The DME module is not locked in general.

Q5: If I have my bench or do this job on the car, do I need this platform?

A: For BMW BDC2 all keys lost, it needs Module 38 and the platform together.

Q6: What's the BDC2 Keys Learning Bench Platform authorization?

It's A504 allows to do BMW BDC2 all keys lost.

ACDP Configuration List (BMW BDC2 Keys Learning Bench Platform)

Enhance your workflow, save time, and deliver professional results with this must-have BMW key programming solution!

Contact Us

Email: Sales@OBD2shop.co.uk

Whatsapp/Wechat: +86 13983755934

Visit: www.obd2shop.co.uk

Solved: YANHUA Mini ACDP Module 26 DQ200 Server Connection Error

Problem: When I connected the YANHUA Mini ACDP 2 + Module 26 to DQ200, it failed and prompted me with "Server connection error. Please try again later or contact after-sales service!"

Anything wrong with the connection?

Please help.

Solution

This is a problem caused by a connection error. As shown in the following image, the adapter in the red box does not need to be connected. The user can find the correct connection diagram in DQ200 Help.

Be sure to refer to the correct steps:

1. Please prepare ACDP, interface board and VAG.

2. Connect the interface board correctly to the VAG interface as shown.

3. Connect the CAN resistor, short the jumper to the "CAN-R" port accroding to the marked position.

4. Connect ACDP, interface board and VAG.

www.obd2shop.co.uk