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Control Unit Configuration (Initial Setting) Procedure Using M-MDS
- If the control unit is replaced, it is necessary to write the vehicle specification data to a new control unit using the M-MDS. This procedure is called configuration (initial setting).
- There are the following two methods of the configuration procedure for the control unit:
- Configuration by reading/writing data of vehicle information: Reads the vehicle information from the control unit prior to replacement, and writes the vehicle information to a new control unit.
- Configuration by As-Built data: Obtains the vehicle specification data when the vehicle is shipped from the factory, and writes the data to a new control unit.
CAUTION:
- Normally perform the configuration using reading/writing function of vehicle information.
- The configuration using As-Built data is used if the vehicle information cannot be read due to a damaged control unit which is to be replaced, or If a DTC such as a configuration malfunction is detected.
- If a control unit having a personalization function is configured using As-Built data, the settings customized by the customer are initialized (to factory settings). In this case, verify the setting values made by the customer and change the customized setting values using the "Programmable Parameters" from the M-MDS menu.
- If the module programming menu of the M-MDS (Programmable Module Installation, As-Built, Programmable Parameters) is performed, perform the procedure while the battery monitor icon of the M-MDS is green or gray.
NOTE:
- For reading the vehicle information, the procedure is automatically performed during the procedure for the M-MDS vehicle identification and network test, and the vehicle specification information is temporarily stored in the M-MDS during vehicle identification.