Using OBDSTAR X300 Classic G3 to Read and Write Land Rover AHCM 9S12DG256 ECU

This guide provides step-by-step instructions for using the OBDSTAR X300 Classic G3 to read and write the Land Rover AHCM 9S12DG256 ECU.

Main Steps:

1. Purchase ECU TCU Cloning Software License
   • Ensure you have obtained the necessary software license for ECU and TCU cloning.
2. Work in Bench Mode Using the P004 Adapter
   • The process requires working in bench mode and using the OBDSTAR P004 adapter.
3. Wiring and Connection
   • Follow the wiring diagram provided in the system to connect the X300 Classic G3 and the ECU via the OBDSTAR P004 adapter, the ECU Clone Jumper, and the main cable.
   • Ensure a stable network connection and that the 12V power supply is well connected during the operation.

Detailed Steps:

1. Preparation
   • Ensure you have the ECU TCU cloning software license.
   • Gather the necessary tools: OBDSTAR X300 Classic G3, P004 Adapter, ECU Clone Jumper, and main cable.
   • Verify network connection and 12V power supply.
2. Connecting the ECU
   • Use the provided wiring diagram to connect the X300 Classic G3 and ECU:
     
   • Pinout Diagram:
     • ECU to TOOL:
       • A-Pin 1: 12V (16)
       • A-Pin 2: GND (4+5)
       • B-Pin 4: CAN L (11)
       • B-Pin 7: CAN H (3)

         

3. Performing the Operation
   • After making the connections, follow these steps on the X300 Classic G3:
     • Select “Bench” and then “P004”.
       
     • Choose “Use default Pincode”.
       
     • Perform the read and write functions.
       
4. Menu Path
   • Navigate through the following menu path on the X300 Classic G3:
     • Select ECU Flasher>> BODY/CHASSIS/OTHER>> BODY/CHASSIS/OTHER software (i.e.V30.32)>> >> LANDROVER AHCM/CPM WEBASTD/CONTINENTAL TTV/TTVEVO 9S12DG256

       

5. Reading and Saving Data
   • Select “Read INT Flash (9S12DG256)” and save the data.
     
   • Select “Read INT EEPROM (9S12DG256)” and save the data.
     
6. Writing Data
   • Write the original INT Flash and EEPROM data into the new Land Rover ECU.
     
   • Ensure the process completes successfully.
     
7. Disconnecting the ECU
   • Once the writing process is complete, disconnect the ECU from the OBDSTAR X300 Classic G3 and the P004 adapter.

By following these steps, you can successfully read and write the Land Rover AHCM 9S12DG256 ECU using the OBDSTAR X300 Classic G3.