Module 89 China MG1/Denso ECU

Caption:

• RD: Read
• WR: Write
• CK: Checksum correction

Supported ECU

• Changan 1.4T, 1.5T, 2.0T (UD8/MG1US008) [RD/WR/CK]
• Chery/Exeed 2.0T F4J20 (MG1US008) [RD/WR/CK]
• DongFeng 1.5T (UP8/MG1US008) [RD/WR/CK]
• FAW 1.5T, 2.0T (UD8/MG1US008) [RD/WR/CK]
• Ranger 2.3L Ecoboost China (MG1US008) [P3N9] [RD/WR/CK]
• Geely 1.5L (MG1UA008) [RD/WR/CK]
• Geely/Livan 1.5T (MG1US708) [Test] [RD/WR/CK]
• Great Wall/Haval 1.5T, 2.0T (MG1US008) [RD/WR/CK]
• Haval Jolion 1.5T (MG1UA008) [RD/WR/CK]
• JAC T9 2.0T (UD8/MG1US008) [RD/WR/CK]
• JAC J7 1.5T (UP8/MG1UA008) [RD/WR/CK]
• SGMW 1.5L/1.5T N15A/N15T (MG1UA008) [RD/WR/CK]
• SWM 1.5T (MG1UA008) [RD/WR/CK]

In version 1.3.0, a new module 89 “China MG1” has been added, designed to work with MG1U family ECUs installed in vehicles from Chinese manufacturers. It supports reading, writing through the vehicle’s diagnostic port, as well as checksum checking and correction.

Reference:

• The ECU UD8/MG1US008 is installed in cars with direct injection, while UP8/MG1UA008 is installed in those with conventional distributed injection. The first ECU has a fully metal casing, while the second has a plastic cover with integrated connectors. Microcontrollers: TC277 and SPC574K, respectively.

Important notes:

1. For reading, direct connection to the ECU connector may be required (currently in pre-facelift Haval F7/F7x).
2. For Haval Jolion, only calibrations (maps) are available for reading, while for other ECUs, the entire software is available.
3. During writing, the loader specifies what needs to be written. For software writing, it may involve replacing the software, while writing calibrations (which is much faster) requires the software version to match exactly.
4. No need to fear interruptions during writing; you can turn off the ignition and start the writing process again.
5. Reading and writing are possible on the bench.
6. Reading can take up to 20 minutes, and writing up to 10 minutes, depending on the type of ECU.
7. If you write a seriously corrupt file, there is a chance to brick the ECU, and there are currently no recovery methods.

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