You use the following information entirely at your own risk; no liability will be accepted by AMC or myself.
ECU definition files
To view or modify the contents of an ECU ROM, ECUFlash requires a definition file.
I have compiled a collection of definition files for 3rd gen Magna/Verada ECUs, downloadable in a ZIP archive: Magna_ECU_Definitions_20170717.zip
The collection also includes several definition files for US market Diamante ECUs.
These definition files need to be added to the ECUFlash installation - see the README.pdf file in the package for more information.
Vehicle types
When attempting to read a ROM image from an ECU, ECUFlash will prompt you with a list of vehicle types.
TF/KF cars fitted with reflash connectors and TH/KH cars have ECUs with 128kB of ROM; select the “Evo 5/6” vehicle type for these ECUs. An OpenPort 2.0 cable is required to read or flash these ECUs.
TJ onwards cars with manual transmissions have ECUs with 256kB of ROM; select the "Evo 7/8" vehicle type for these ECUs.
TJ/KJ onwards cars with automatic transmissions have ECUs with 512kB of ROM; a custom configuration file (known as a "read template") needs to added to the "read templates" subdirectory in the rommetadata directory of the ECUFlash installation for the whole 512kB ROM image to be readable. A suitable read template is available in this ZIP archive; with this read template installed, select the "Evo7 GT-A/01+ Magna AT" vehicle type to read these ECUs. Selecting the “Evo 9” vehicle type may also work, or be required, for many L/W series automatic ECUs.
WARNING: selecting the “Evo 7/8” vehicle type will only read the first 256kB of the ECU ROM; the above definition files will not work with incomplete ROM images – see the README.pdf file in the definition file archive for more information.
Both the 1.3U and 2.0 versions of the OpenPort cable can be used to flash TJ onwards ECUs, or 2001 onwards US market Diamante ECUs.
ROMs with no definition
If you find an ECU for which no definition is included in this collection, you are welcome to contact me for assistance.
You are advised to avoid posting ROMs in a public forum without having obscured the immobiliser code. I understand that the AMC admin team do not want links to ROM files with valid immobiliser codes posted to the AMC forums, nor should links to ROMs that have been modified (e.g. custom tunes) be posted.
ECUs known not to be covered by these definitions
TE/KE: ECUs not reflashable with ECUFlash and no reflash connector
TF/KF: ECUs in cars not fitted with a reflash connector not known to be reflashable
US market Diamante: model years before 2001
There may also be some as yet unidentified ROM versions in vehicles thought to be covered – sometimes several ROM versions were issued for the same ECU part number.
As ROM image files for ECUs not currently supported become available, support will be added.
Updated 17/07/2017:
- additional maps related to accel enrichment/decel enleanment
- additional shift related maps in auto ECUs
- several additional ROMs supported



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