Land Rover AHCM 9S12DG256 Read and Write with OBDSTAR G3/DC706

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Which OBDSTAR tool can read and write Land Rover AHCM 9S12DG256 ECU?

Both X300 Classic G3 and DC706 ECU Tool support this function by Bench mode and P004 Adapter. The wiring diagrams are the same. OBDSTAR P004 Adapter and ECU Clone Jumper are required to work with OBDSTAR tool. Connect the device and ECU properly according to the diagram, and ensure the network connection is normal and 12V power supply is connected well during the operation.

1.OBDSTAR X300 Classic G3 Read and Write Land Rover AHCM 9S12DG256 ECU

Need to activate ECU Flasher Function Authorization

Select ECU Flasher>> BODY/CHASSIS/OTHER>> BODY/CHASSIS/OTHER software (i.e.V30.32)>> >> LANDROVER AHCM/CPM WEBASTD/CONTINENTAL TTV/TTVEVO 9S12DG256

Pinout diagram:

ECU	TOOL
A-Pin 1	12V (16)
A-Pin 2	GND (4+5)
B-Pin 4	CAN L (11)
B-Pin 7	CAN H (3)

Connect OBDSTAR G3 and ECU correctly

After connection, select BENCH, P004, and Used default Pincode

Connect ECU

Read INT Flash (9S12DG256) and save data

Read INT EEPROM (9S12DG256) and save data

Write the original INT Flash and EEPROM data into the new Land Rover ECU

Disconnect the ECU after writing.

2.OBDSTAR DC706 Read and Write Land Rover AHCM 9S12DG256 ECU

The operation guide is similar.

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