Resetting SGMW R7F701A033 Airbag ECU with OBDSTAR P50

This article provides a step-by-step guide on how to reset the crash data for an SGMW R7F701A033 encrypted Airbag ECU using OBDSTAR P50. This procedure is necessary when standard diagnostic tools cannot clear crash-related fault codes.

Required Tools & Equipment

P50 or Keymaster G3

High-power DC regulated power supply

MP001 multi-function programmer

RH850/V850 adapter kit

Main cable and jumper

SGMW R7F701A033 airbag module

Pre-Operation Preparation

1. Software Upgrade: Ensure your diagnostic tool's software is updated to the latest version.

2. Navigation: From the main menu, select [Crash Reset] and then [AIRBAG RESET].

3. Model Selection: You can quickly locate the correct option by searching for the airbag ECU part number in the upper-right corner search bar.

4. Initial Setup: Select the correct Boot Mode and the corresponding RH850 adapter.

Critical Preliminary Step: Review the Guide

Before any physical work, carefully review the built-in instructions.

Tap the [Guide] button.

Thoroughly read all sections: Background, Menu Description, Operation Description, Notes, and Connection Method.

This information is crucial for a successful and safe reset.

Hardware Connection & Wiring

1. Click [Connector Pinout].

2. Important: This specific ECU has multiple wiring methods. You must follow the pinout diagram that matches the function you are performing.

3. Connect the wires from your programmer to the ECU's circuit board precisely as shown in the diagram.

Step-by-Step Reset Procedure

Phase 1: Initial Diagnostics & Preparation

1. ECU Information: Click [ECU Info] to read and verify the ECU's part number.

2. Check for DTCs: Select [Read DTC]. You will see a persistent crash-related fault code.

3. Attempt Erasure: Choose [Erase DTC]. This will fail, confirming the need for a physical reset.

Phase 2: Physical Access & Data Backup

1. Initiate Crash Erase: Select the [Erase Crash (MP001)] function.

2. Power Down: Tap [PCB Pinout] to view the diagram, then disconnect power to the ECU.

3. Disassemble: Remove the cover of the airbag ECU to access the main printed circuit board (PCB).

4. Adapter & Wiring: Replace the standard adapter with the RH850 adapter. Solder the wires to the ECU's PCB as shown in the diagram.

5. Read All Data: Tap [Read All Data (R7F701A033)] and then [START].

6. Connect Programmer: Connect the MP001 programmer to the diagnostic device. An "Upgrade successful" message will appear.

7. Acknowledge Risk: A warning will appear: "Continuing with the risk of locking the MCU, do you want to continue?" Proceed with caution.

8. Create Backup: The tool will read the ECU's memory. It is critical to save the backup file when prompted. Wait for the "Operation success" message.

Phase 3: Erasing the Crash Record

1. Execute Erase: Click the [Erase Crash] button.

2. Confirmation Prompt: The device will ask, "Has the [Read All Data] function been executed?" Since you have already done this, select OK.

3. Select Backup File: When prompted, select the data file you saved in the previous step.

4. Completion: The process will complete with a "Crash record erased successfully" message.

Phase 4: Final Verification

1. Reconnect: Reconnect the device to the vehicle and switch the software back to standard diagnostic mode.

2. Clear DTCs: Select [Erase DTC] again. The DTCs will now be erased successfully.

3. Final Check: Perform a final [Read DTC] to confirm. The previous crash record and all related fault codes will be gone.

Conclusion

You have now successfully used the OBDSTAR P50 to reset the collision data for the SGMW R7F701A033 airbag ECU. Always ensure a full backup is performed before attempting any write operations to prevent permanent ECU damage.

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For more details, please refer to the video:

OBDSTAR P005 Adapter Kit – For BMW BDC02 IMMO Function

The OBDSTAR P005 Adapter Kit is the latest professional accessory designed for IMMO functions on BMW BDC02 modules. It provides a fast, reliable, and solder-free solution for reading IMMO pincodes and virginizing used ECUs — making maintenance and repair easier than ever.

Package Includes:

P005 Custom Board

W012 Connecting Main Cable

Main Functions

1. Solder-free IMMO PIN Reading

Supports reading the IMMO pin code of BMW BDC02 via BOOT mode.

Ideal for adding new keys safely and efficiently.

2. Solder-free Virginizing of Used BMW BDC02 ECU

Supports virginizing operations through OBD/BOOT mode, allowing the used ECU to be re-adapted to another vehicle.

Notice:

OBD-mode virginizing requires a 32-bit security key.

If the key is unavailable, it can be retrieved through BOOT mode.

Supported BMW Models

Key Advantages

1. Fully solder-free operation — safe and easy to use

2. Works with both BOOT and OBD modes

3. Designed for professional BMW key programming and ECU repair

4. Compatible with OBDSTAR KeyMaster G3

Conclusion

The OBDSTAR P005 Adapter Kit streamlines IMMO and ECU work on BMW BDC02 systems, saving time while ensuring secure and stable performance. Whether for key programming or ECU replacement, it’s a must-have tool for professional automotive technicians.

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Read/Write Data and Program VIN for JINBEI TR40.3 ECM Using DC706

This post provides a practical demonstration of performing data read/write and VIN programming operations on the JINBEI TR40.3 Engine Control Module (ECM) using the OBDSTAR DC706 ECU tool.

Required Tools & Equipment:

DC706 or KEYMASTER G3 Tool

High-power DC Regulated Power Supply

Main Cable

ECU Clone Jumper

MP001 Programmer

JINBEI TR40.3 ECM

Step-by-Step Guide:

1. Software Preparation:

Ensure your diagnostic software is updated to the latest version before starting.

2. Navigate to the ECM Flasher:

Tap on [ECU Flasher], then select [ECM], followed by [ECM V32.40].

Pro Tip: Use the search function in the upper-right corner of the menu page to locate the correct option quickly.

3. Review the Guide:

Tap the [Guide] button. Carefully read all provided information, including the warm reminder, menu descriptions, operation guide, special notes, and connection methods.

4. Pinout & Hardware Connection:

Click on [Pinout] and select the appropriate adapter. For this demonstration, we are using the MP001 Multifunctional Programmer.

Verify the module's physical appearance matches the [ECU Image] displayed.

Tap [PCB Pinout]. Then, open the ECM cover and solder a Boot wire as illustrated in the guide.

Tap [Connector Pinout]. Refer to the wiring diagram to ensure that all cables are correctly connected to the ECM.

5. Read/Backup Original Data:

Click [Start]. After a successful connection, the first crucial step is to back up the original flash data.

You can customize the backup file name. The saving path and a log of all operations will be displayed on the left side of the screen.

6. Enhanced File Management:

The file management system has been upgraded. You can now filter saved files by name, modification date, or file size.

Example: Quickly locate your most recent backup by filtering files based on the modification time.

7. VIN Programming:

Use the [Write VIN] function to program the desired Vehicle Identification Number into the ECM.

Operation Completed.

For a visual walkthrough, please refer to our video guide:

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Resetting Crash Fault Codes on the HONGQI Airbag ECU with OBDSTAR P50

This guide outlines the procedure for erasing crash-related fault codes from the HONGQI 3607115-HF01 Airbag ECU using specialized diagnostic tools such as the OBDSTAR P50 or the X300 Classic G3 with Crash Reset functionality.

Video guides:

https://youtu.be/atcz8xeht8A

Prerequisites:

Ensure your diagnostic tool’s software is updated to the latest version.

A stable internet connection is required for certain functions.

Step-by-Step Procedure:

1. Launch the Software:

Open the diagnostic tool and tap on the [Crash Reset] application. Navigate to [AIRBAG RESET] → [AIRBAG RESET V31.37].

2. Select the Correct ECU:

Use the search function in the upper right corner to quickly locate the ECU by entering its part number: 3607115-HF01.

3. Choose Reset Mode:

Select [BENCH] mode, then choose option [P004]. Note that this step requires an active internet connection to connect to the server.

4. Review the Guide:

Tap on [Guide] and carefully read the provided instructions, including menu descriptions, operational steps, and connection methods.

5. Read ECU Information:

Establish a connection to the airbag ECU and read its information to confirm the part number matches.

6. Check for Fault Codes:

Proceed to read the fault codes. A crash-related fault code should be present in the list.

7. Erase the Crash Data:

Select the [Erase Crash] option and follow the prompts to complete the operation.

8. Clear Diagnostic Trouble Codes (DTC):

Execute the [Erase DTC] function to clear all fault codes from the system.

Verification:

Read the fault codes once more to confirm that the crash-related fault code has been successfully erased.

For more diagnostic tools and support, visit:

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