OBDSTAR X300 Classic G3successfully added a spare 8A proximity smart key to a 2024 Toyota Tacoma.

Connect a30-pin Toyota cableto bypass the gateway.

Read immo data. This function requires a network connection.
Then add key.

Eoneboss TLK-1collects the data after it is programmed to the car, then transfers the data it collected and write it the unlock smart.
After program key, program ID box with steering lock.
Select immo data backed up, hold a programmed smart key agaigneset the start button to sync ID.
Images attached:

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CG100 Prog IIIreset Toyota 89170-42280 airbag crash successfully.

Part number: 89170-42280
Processor: R5F61725
Read and erase crash on bench mode.

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In this article, we'll cover the most frequently asked questions about this powerful ecu programming tool-OBDSTAR ECU Master.

The tool is divided into four packages: A, B, C, and D. These cover passenger vehicles, motorcycles, heavy-duty systems, and airbag systems respectively. Users can purchase the hardware with full package activation or choose individual package unlocks based on their specific needs.

Supported Vehicle Models

The ECU Master supports a broad range of manufacturers and modules. In the software, users can view a comprehensive list of compatible vehicles and systems. One notable feature is the color coding:

Red text indicates modules that are in beta version or have been recently added in the latest update.

Heavy-Duty Vehicle Support

A major differentiator for the ECU Master is its heavy-duty line support – a feature not available in other OBDSTAR tools like the DC706. The tool supports:

BCM, ECM, and TCM systems for trucks

Power/torque modification options

Solenoid writing

Actuator hours modification

Engine number changes

Power Supply Requirements

For heavy-duty vehicle programming, the tool requires an external power supply capable of delivering:

21–24V

At least 5A

This is critical to maintain stable voltage during programming – especially for truck modules.

Advanced Functions

While the ECU Master currently does not have a dedicated "Advanced Functions" menu like the G3, many advanced operations are already available within the specific module menus.

Common Questions and Answers
1. Will the DC706 Stop Working After the ECU Master Release?

No. The DC706 will continue to function normally. The ECU Master is a new tool with added capabilities (especially heavy-duty support), but it does not replace or disable existing tools. In fact, many of the functions available on the ECU Master are the same as those on the DC706.

2. Are MP001, P003, or P004 Adapters Needed?

No. Because the ECU Master is a new release, these adapters have already been integrated into the hardware. Users do not need to purchase separate adapters – all necessary connections are built in.

3. What About Fiat Systems?

Fiat has many systems currently under development. While some functions may not work 100% yet, the engineering team is actively working on implementation. Users may notice that some Fiat modules do not show a dedicated "Erase Crash" option. However, in many cases, performing a DTC erase will also clear crash data – especially on newer Fiat modules.

4. Why Do Some Modules Show Different Colored Connectors?

This is not unique to OBDSTAR tools – it's an industry-wide reality. The same module can come in multiple versions with different connector colors (e.g., white, gray, green, pink, yellow). If the tool doesn't show your specific connector version, you have two options:

Search for the pinout online using the module number

Contact OBDSTAR support for assistance

5. What If the Tool Won't Communicate with a Module?

If communication fails even after following the correct connection procedure:

Collect the log data from the tool

Send the logs along with the tool's serial number to the support team

Ensure your tool is within the update period so that test or repair files can be downloaded

The factory will analyze the logs and may send a test file. Turnaround time can vary (24–48 hours) depending on time zones and the complexity of the issue.

6. What Are Beta Versions?

Beta versions are test modules that are still under development. If a module is marked as beta and you encounter issues, simply send the log data to support. The engineering team will gradually improve and add functionality over time.

One common source of confusion is the difference betweenbench (BENCH)andboot (BOOT)connections:

Log Collection and Factory Support

When encountering issues, users are encouraged to:

1. Perform the connection as per the tool's instructions

2. If communication fails,collect log datafrom the tool

3. Send logs + serial number toOBDSTAR support

4. The factory will analyze and potentially send a test file

5. Wait for feedback (typically 24–48 hours)

This feedback loop iscritical for the tool's ongoing development, especially for beta modules.

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What is the difference between Thinkcar Thinkscar 689BT Pro, 689BT and Mucar 892BT lifetime-free-update diagnostic scanners?

Check the table comparison below:

In sum:

689BT Pro is the most advanced model, adding Topology Mapping, J2534 protocol— features not available on the other two.

892BT and 689BT are nearly identical in hardware and basic functions, except the 689BT has 34 reset functions while the 892BT and 689BT Pro both have 35. Mucar supports AI feature, 689BT series does not.

All three share the same screen size, memory, battery, language options, and lifetime free update policy (excluding FCA).

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Problem:

Tried to unlock the Hyundai smart key usingEoneBoss HK002(orHK001) key tool, the App kept scanning and no response. Any solution?

Cause:Location services are not enabled on the phone.

Solution:

Turn on location services on your mobile phone and try again.

It will work without problem.

To turn on location services, open your phone’s Settings app, go to your location or privacy menu, and turn the master switch to the on position.

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Problem:

It’s a 2025 Dodge Ram ProMaster. All keys have lost.Autel IM508with12+8 cablewas able to pull pin code, but it will not erase keys or allow new one to be programmed.

Will it even pull the pin code if RF Hub is locked? Can we do this with Witech if RF Hub is locked?

Here is the clue.

Rfhm locked means the it has the rf hub lockout update. No keys can be added.
RFH locked means the hub is locked to vehicle and that’s always the case. Because it can only be used once and it locks to that car no way to unlock.

It says rfhm locked that means it’s locked to due to update. Rfh locked is the hub being locked to vehicle.

All promasters 25 and up are locked.

Solution:

Need to replace rfh an then use witech to program both.

Rfh is located in headliners.

Install a new hub and keys programmed without any issues.

Even with witech you have to replace RFH to new one.
The RFH new from the dealer was 160$.
Easy to program with witech them you program new keys.

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