OBD2 Diagnostic Tools

How to Check Mileage from Working Key with CGDI K2?

13 Juillet 2025 , Rédigé par JTAC

Here’s a small tip to guide you quickly check and sync vehicle mileage on CGDI K2 key tool. You’ll need to have a working key at hand.

Put the working key into CGDI K2 key clot.

Select Chip Identification Copy function.

Change BMW F series Mileage in Key with CGDI K2 1

Insert a BMW key into the induction coil and identify key information.

Change BMW F series Mileage in Key with CGDI K2 2

CGDI K2 reads key info. It’s ID49 chip key. Hit “More” button.

CGDI K2 will show mileage. Click “Edit” function.

Input mileage you need to sync manually.

Identify key info again. Now you can see the mileage is synced.

Repost0

Read Skoda PCR2.1 CS and PIN with OBDSTAR DC706

10 Juillet 2025 , Rédigé par JTAC

In this guide, we’ll walk through the process of reading the CS and PIN code for a Skoda Rapid all-key-lost using the OBDSTAR DC706 tool. This method is particularly useful when dealing with immobilizer and key programming issues.

Step-by-Step Procedure

1. Connect the DC706 Tool

Select Simos PCR 2.1 Protocol
Check bench wiring diagram with MP001 or P003+
Connect ECU with P003+ and DC706

OBDSTAR DC706 Read Skoda PCR2.1 CS and PIN 2

OBDSTAR DC706 Read Skoda PCR2.1 CS and PIN 3

2. Read the CS PIN Code

First connect ECU and read ECU info. It reads ID successfully.

OBDSTAR DC706 Read Skoda PCR2.1 CS and PIN 4

Navigate to the "Read IMMO Data" option in the DC706 menu.

OBDSTAR DC706 Read Skoda PCR2.1 CS and PIN 5

The tool will connect to the server to retrieve the CS and PIN code.

Once the PIN is extracted, take a screenshot for reference.

OBDSTAR DC706 Read Skoda PCR2.1 CS and PIN 6

Now you can program key with the CS and PIN code.

Topdon Rlink, Vxdiag VCX SE, Eucleia T6 Pro J2534 comparison

9 Juillet 2025 , Rédigé par JTAC

Topdon Rlink X7, VXDIAG VCX SE and Eucleia T6 Pro which is a better J2534 passthru device for OEM online programming?

Check the comparison below:

1. Software and Driver Support

Each of these devices operates on different for software and driver support platforms. The Topdon Relink uses the Relink platform, offering user-friendly software management. The Vxdiag VCX SE uses VX Manager for its software needs, while the Eucleia T6 Pro runs on the Eucleia platform. Understanding the software ecosystem of these devices is essential for seamless operation and updates.

2. Porsche Diagnostics and Programming

All 3 devices support diagnostics and programming for Porsche models from 2002 to the present. Both Topdon Relink and Vxdiag VCX SE are compatible with PWE 3 and PWE 4 engineering modes, while the Eucleia T6 Pro supports PWE 3 but does not accommodate PWE 2. This makes the Topdon and Vxdiag options more versatile for those working with a range of Porsche vehicles.

3. Mercedes-Benz Support

For Mercedes-Benz vehicles manufactured from 1996 onwards, all 3 devices provide comprehensive support. They use xentry for diagnostics and programming, and they all support DTS Monaco for 2010 and later models, along with VEDIAMO for models from 2004 to 2010. Notably, the Topdon Relink and Eucleia T6 Pro specifically support the Mercedes-Benz W447 model with Xentry 24.6.

4. BMW Diagnostics

When it comes to BMW, all devices support ISDA for diagnostics from 1996 or 2004 to the present. The latest ISDA 4.48 version is supported by Topdon Rlink and Eucleia T6 Pro. Furthermore, all 3 devices offer ESYS, IMAP, and WIN KFB programming for BMW models from 2004 onward, providing a solid solution for BMW specialists.

5. General Motors (GM) Support

All 3 devices provide robust support for General Motors (GM) vehicles, covering diagnostics from 2000 to 2012 Tech 2 Win, and GDS2 for models manufactured after 2012. Furthermore, SPS programming is available by all 3 devices, ensuring comprehensive support for GM technicians.

6. Volkswagen, Audi, SEAT, and Skoda Diagnostics

The compatibility of all devices with ODIS-E and ODS-S allows them to handle VAG models from 2001 to the present Notably, both Topdon Relink and Eucleia T6 Pro support CAN FD/DoIP protocols, while the Vxdiag VCX SE is limited to DoIP, making the former two devices better suited for modern VAG diagnostics.

7. Ford and Mazda

For Ford and Mazda vehicles, all devices cater to diagnostics from 2005 using IDS, FDRS, and FJDS. This compatibility ensures mechanics have access to essential diagnostics for these popular brands.

8. Jaguar and Land Rover

All 3 devices are compatible with Jaguar and Land Rover models, covering diagnostics from 2007 to 2016 with SDD, and from 2017 to 2022 with Pathfinder providing full diagnostic and programming support.

9. Volvo

All 3 devices offer Vita support for Volvo models between 2001 and 2014 so that technicians can effectively diagnose and program these vehicles.

10. Toyota, Honda, and Subaru Support

Diagnostics for Toyota vehicles are supported by all devices using TechStream for models from 2005 onwards. Honda diagnostics are similarly supported through HDS/IDS on all devices for the same range of years. For Subaru, Topdon Relink and Vxdiag VCX support SSM3 and SSM4 for newer models while Eucleia T6 Pro does not SSM3, which may be a limiting factor for Subaru specialists.

11. Nissan, Renault, and PSA ( Citroen and Peugeot ) Support

Nissan diagnostics via Consult 3 Plus are offered by both Topdon Rlink and Vxdiag VCX, while Eucleia T6 Pro does not provide support. Renault diagnostics through clip are available exclusively through Vxdiag VCX, and PSA (Peugeot and Citroen) diagnostics are supported by Eucleia T6 Pro, broadening the brand coverage for users of these devices.

12. Chrysler, Dodge, and Jeep Support

VXDIAG and Eucleia T6 Pro do not support Chrylser license. Topdon Rlink does.It supports Chrysler, Dodge, and Jeep vehicles, covering models from 2005 to 2022. This compatibility allows mechanics to perform various functions, including reading clearing fault codes, accessing live data, and performing special functions, making them suitable for a wide range of repairs and troubleshooting.

13. Aditional Brand Support

GM China diagnostics with RDS/SCS are supported by Topdon Rlink and Eucleia T6 Pro.

Conclusion

Each device comes equipped with unique features that can enhance the diagnostic experience. For instance, Topdon Rlink stands out with broader compatibility and additional support for modern Diagnostics including CAN-FD and multiple advanced protocols it's ideal for users requiring extensive coverage across Brands. Vxdiag VCX is versatile but lacks CAN-FD support making it slightly less capable for certain modern vehicles. Eucleia T6 Pro offers solid support but falls short on some specific brand Diagnostics like PWE 2 for Porsche or Nissan consult compatibility.

if you require a device with extensive coverage across Brands and support for advanced Diagnostics like an FD, TOPTON Rink may be the better choice, for users focused on specific brands, Vxdiag or Eucleia T6 Pro could also suffice depending on the use case. in sum, rink X7 and Eucleia T6 Pro both support KFD and DOIP protocols Vxdiag VCX SE only DOIP. if you need CAN FD, you need to get a new Vxdiag CAN FD device. Some licenses are not ready for the CAN FD device yet, all these are based on third-party drivers. all can be used as j2534 pass-through for OEM online programming.

Eucleia is not compatible with the Subaru Nissan PSA Renault license. Relink is not compatible with PSA, Renault, SSM3, and Pathfinder PWEII software. Vxdiag does support this software. Rink X7 and Vxdiag VCX SE allow adding more software licenses to the unit. These are affordable J2534 devices comparing Mongoose Pro adapters. it depends on your needs. some users reported that the Vxdiag FD is faster and easier to set up than relink.

All four devices have active online communities technicians discuss troubleshooting tips, software updates, and shared experiences, which can be beneficial for looking to maximize their device's potential.

In conclusion, selecting the automotive diagnostic device depends on various factors, including the specific brands and models you work with, your, and the features that are most important to your needs. Topdon Relink, Vxdiag VCX SE, and Eucleia T6 Pro offer a wide range of functionalities and compatibility with numerous, making them reliable choices for specialists in repairs. Whether you are a professional in a busy shop or a DIY enthusiast, understanding the strengths and weaknesses of each device will help make an informed decision and ensure you have right to effectively diagnose and repair vehicles.

How to Buy VAG SFD Gateway License in Launch X431?

8 Juillet 2025 , Rédigé par JTAC

Good news! Launch X431 now supports VAG SFD security gateway unlock automatically. Don’t need to obtain a token from 3rd party. You have to purchase SFD unlock subscription.

How to Purchase Launch X431 VAG SFD Unlock License?

VAG SFD authorization is now available as a standalone purchase.

Compatible devices:

Launch X431 PAD V7 Elite
Launch X431 PAD V
Launch X431 Pro5 Smartlink
Launch X431 Pro3 (Pro3s+ Elite)
Launch X431 Pro3 (V+ Elite)

Launch X431 Pro V+ V5, Pro Dyno etc 10 inch/8 inch tablets

Launch CRP919E BT/CRP919X BT

Price: $299

Tax is not included.

Payment:

Via Paypal

Applicable regions and countries:

Excluding the following areas: Europe (Eurozone regions, as well as Spain and Portugal), the United States, Canada, Mainland China, Syria, Russia, Belarus, and North Korea. All other regions or countries are eligible for purchase.

Purchase path:

Navigate to Mall-> Other Goods->VAG SGW.

Interface styles may vary across different devices.

The authorization is valid for one year ONLY. Need to renew license after expiration.

Activate Launch X431 VAG SFD Unlock License 2

For regions where individual software purchases are unavailable, only SGW software packages are available for purchase. User access must be differentiated between European and non-European markets.

For European Users:

Purchase “European SGW Function License” in Mall. ($1,151 + tax).

Contains:

FCA & Maserati gateway license (1 year)
Mercedes Benz gateway license (1 year)
Renault & Dacia (20 connections)
VAG SFD license (1 year)- newly added

For Non-European Users:

Purchase “European SGW Function License” in Mall. ($899 + tax).

Contains:

FCA & Maserati gateway license (1 year)
Renault & Dacia (20 connections)
VAG SFD license (1 year)- newly added

*The authorization is valid for one year ONLY. Need to renew license after expiration.

Non-European users cannot activate Mercedes gateway license on their devices.

NOTE:

Please note that this item is only available to non-European region users, so please do not purchase if you are a European region user.

Users must log in to this website: http://europe-lmp.x431.com/LMP/#/sgwLogin for SGW authentication first, otherwise the function cannot be activated successfully.

FYI:

Launch X-431 FIX/CarSet PRO/HaynesPro can be purchased in Mall as well.
Go to Mall- Other Goods- European Database License. It takes $1,915 (tax is not included)

How to Get Check Code for APPRO2?

7 Juillet 2025 , Rédigé par JTAC

When performing the BMW F/G series mileage correction function using the APPRO2 programmer, it will request a check code.

In the past, users had to send the random code to us to get the check code.

The time difference makes this inconvenient.

Now APPRO2 technician modifies the online server. Users will obtain the check code online directly.

How to get the check code automatically?

Update Appro2 software to latest version.

This function requires network connection. The software will calculate the check code from APP2 server.

NOTE:

The server has a daily limit of 5 check code calculations. Additional requests must be calculated manually.

OBDSTAR G3 Read and Write VW MED17.1.27 ECU IMMO OFF

6 Juillet 2025 , Rédigé par JTAC

OBDSTAR X300 Classic G3 read and write VW MED17.1.27 ECU on bench with MP001 programmer.

Bosch MED17.1.27

Read/Write EEPROM-Success

Read/Write Flash-Success

IMMO Off-Success

IMMO Off directly from G3, No Third Party Required

Automatic Checksum Correction

Total Time: 16 Minutes

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU on Bench

26 Juin 2025 , Rédigé par JTAC

OBDSTAR DC706 will read and write Hyundai KEFICO CPEGP3.20.1 ECU on bench mode.

Tools required:

OBDSTAR DC706

OBDSTAR P003/P003+/MP001 programmer

Select Hyundai KEFICO CPEGP3.20.1 C277TP ECU

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 2

Bench mode with P003 or MP001

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 3

Check bench mode wiring diagram.

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 4

Connect P003+ adapter with ECU and DC706.

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 5

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 6

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 7

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 8

Connect ECU.

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 9

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 10

Read MAPS.

OBDSTAR DC706 Read Hyundai KEFICO CPEGP3.20.1 ECU 11

It also write MAPS data without problem.

What is Yanhua ACDP BMW BDC2 "Unlock DME" Function?

25 Juin 2025 , Rédigé par JTAC

Q: There is a “Unlock DME” feature in Yanhua Mini ACDP module 38 BMW BDC2 function menu. What does unlock DME mean? Does it refer to engine ECUs blocked after 2020/10?

Here is the clue.

What is Unlock DME?

If a DME is unlocked, you can rewrite immo data to the engine.
If you get a second-hand engine DME, you can install it on other cars after unlocking it.

Compatibility:

Unlock DME is available for B48/B58 engines (F chassis and G chassis) that can read engine EEPROM data by Yanhua ACDP.

Requirement:

Unlock DME function requires A504 license activation.

Operation mode:

Unlock DME is done via OBD.

Procedure:

First of all, read and back up EEPROM data from original DME first.

Read B48 EEPROM data with module 3+ B48 interface board on bench mode.

Then select “Unlock DME” function.

Connect ACDP with vehicle OBDII port.

Upload original eeprom data and follow ACDP prompts to unlock DME until completed.

OTOFIX IM1 Program Volvo XC70 CEM All Keys Lost

24 Juin 2025 , Rédigé par JTAC

User reported: program Volvo XC70 all keys lost with OTOFIX IM2 successfully.

Need to remove CEM module from vehicle.

Program Volvo XC70 All Keys Lost with OTOFIX IM2 1

Program Volvo XC70 All Keys Lost with OTOFIX IM2 2

Check wiring diagram in device.

Ready to read CEM data with OTOFIX XP1 Pro.

Make new key successfully.

OBDSTAR DC706 Read BYD MT22.1 ECU on Bench

23 Juin 2025 , Rédigé par JTAC

OBDSTAR DC706 read and write BYD Delphi MT22.1 Denso ECU on bench successfully.

I’ll walk through my experience reading and cloning a Denso MT 22.1 ECU using the Obdstar DC706 tool. This process involves bench reading, VIN writing, and troubleshooting common issues—helpful for locksmiths, mechanics, and automotive enthusiasts.

Step-by-Step Process

1. Connecting to the ECU

The Denso MT 22.1 ECU was initially attempted with Xhorse Multi prog, but it required boot mode, which was unnecessary with the Obdstar DC706.
Using a K-line connection, the Obdstar successfully established communication with the ECU.

2. Reading the ECU Data

The reading process was slow due to the K-line protocol but stable.
The tool first writes a bootloader before extracting the flash data, ensuring compatibility.
A key advantage of the Obdstar DC706 is its ability to read and write VINs, useful for virgin ECUs or replacements.

3. Handling a Virgin (New) ECU

The new ECU had no pre-written VIN, so the plan was:
1. Read and save the flash data for future use.
2. Write the correct VIN if the original ECU couldn’t be read.
Avoiding physical opening (desoldering) was preferred to preserve the ECU’s integrity.

4. Troubleshooting and Next Steps

If the original ECU couldn’t be read via bench mode, boot mode (desoldering) would be the fallback.
The saved flash data from the new ECU could be reused for future cloning jobs.

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 1

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 2

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 3

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 4

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 5

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 6

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 7

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 8

OBDSTAR DC706 Read BYD Delphi MT22.1 ECU on Bench 9

Key Observations

Obdstar DC706 Benefits:

Works without opening the ECU (bench mode).
Allows VIN writing, essential for new or replacement ECUs.
More user-friendly than Multiprog for this application.

Challenges:

Slow reading speed due to K-line communication.
Boot mode may still be needed for problematic ECUs.

Autel IM508 Generate 2018-2023 Camry 0351 iKey

22 Juin 2025 , Rédigé par JTAC

If anyone encountered the PCB 0351 -2018-2023 Camry.

Autel IM508/IM608‘s menu cannot generate under Camry option.
You have to go to CHR to get the right board number and it will still be under 0410 (0351).
And it will work perfectly.

In this case, generate remote under Toyota C-HR 2016-2024 314.35/312.10MHz, FSK ID8A, PCB 0410 option.

Generate 2018-2023 Camry 0351 Key with Autel IM508 1

Generate 2018-2023 Camry 0351 Key with Autel IM508 2

Generate 2018-2023 Camry 0351 Key with Autel IM508 3

Repair BMW E81 E82 E88 FRM 3M25J by CG100X

19 Juin 2025 , Rédigé par JTAC

CG100X programmer repair BMW E series E81 E82 E88 FRM Footwell module (mask 3M25J) successfully.

Select BMW- FRM Foot Space- E81 E82 E88 XE- 3M25J.

CG100X shows the wiring diagram.

The data is repaired completed.

When you try to work on a module that has already been repaired with a different menu, a pop-up window like the one above appears.

CG100X Repair BMW E81 E82 E88 FRM 3M25J 6

Autel IM508 Program 2019 Citroen C5 Smart Key via OBD

18 Juin 2025 , Rédigé par JTAC

How to add a spare smart key for a 2019 Citroen C5 using Autel IM508?

First, create a key-type emergency key inside the smart key.

Turn the car door to make sure it opens and locks properly.

The key system is made of HU83 key blade and 7 bit.

You can open the car door by turning it towards the left bonnet.

The emergency key I made works smoothly on both the left and right.

Add 2019 Citroen C5 Smart Key with Autel IM508 2

Now, to register the new smart key you have prepared, connect Autel IM508 device to your vehicle’s OBD.

Connect the programmer to start communicating with the vehicle.

Autel will read 4-digit pin code.

You must enter the information correctly to proceed to the next item.

The slot location is a groove on the left side of the handle, so when registering the key.

You will need to register the key by contacting this section.

Even if the smart key battery is discharged, if you place the key in the car and press the start button as shown in the photo.

You will be able to start it.

If both the original key you currently have and the newly registered key are registered.

The number of registered keys is displayed on the scanner screen.

Add a smart key successfully

Both the original key and the additional key start the car normally.

We also test each remote control to see if it works properly.

Cannot Start Lonsdor K518 Pro Device Solution

17 Juin 2025 , Rédigé par JTAC

Problem:

Londsor K518 Pro key programmer device failed to start. It is not working.

Lonsdor K518 Pro Device Failed to Start 1

Lonsdor K518 Pro Device Failed to Start 2

Solution:

Please carefully open the device shell and check if the screen’s flat cable has become loose. Gently unplug and reconnect the cable to ensure proper contact.

Reconnect the flat cable within the red circled area.