Computers/Controls - Control Module Upgrade Information
NUMBER 055GROUP General
DATE September 2012
MODEL Optima Hybrid (TF HEV)]
SUBJECT:
OPTIMA HYBRID CONTROL MODULE UPGRADES
This bulletin provides information related to upgrading hybrid control modules when they are replaced on an Optima Hybrid. Whenever a module in the list below is replaced, the new (replacement) module must be verified to be of the latest ROM ID available.
^ ECU: Engine Control Unit
^ TCU: Transmission Control Unit
^ MCU: Motor control unit (contained within the Hybrid Power Control Unit-HPCU)
^ BMS: Battery Management System
^ LDC: Low-voltage DC-to-DC Converter (contained within the HPCU)
^ HCU: Hybrid Control Unit (contained within the HPCU)
In the required Techline case for a vehicle repair, the technician should include the ROM ID of the original and new (replacement) control module(s), and then update to the latest ROM ID available by using the procedure below and by referring to notices, cautions, warnings, upgrade event # 173, and details in TSB Engine 105 (Service Action 090). Although TSB Engine 105 applies to units with production dates prior to 9/22/2011, these production dates do not apply to this TSB GEN 055.
*NOTICE
Ensure that the VCI is updated with the latest firmware version.
1. Identify the replaced component in this ROM ID Information Table.
2. Check the ROM ID of the replaced component. If the replaced component has the same ROM ID that is shown in the "PREVIOUS ROM ID" column, proceed to the next step. If not, no ROM ID update is necessary.
3. Using the GDS, update only the replaced component by following the instructions for a MANUAL MODE UPGRADE in TSB Engine 105, except:
In Step 4 of TSB Engine 105, Manual Mode Upgrade procedure, turn the ignition key ON to update only the module(s) identified in Step 2 of this procedure as needing an update. Leave the ignition key OFF and click OK in the pop-up window displayed for each module that is not being updated.
The upgrade process follows the following sequence and a pop-up window (symbolized by "-->" and shown in the screenshot on the right) appears before each module update: [--> ECU --> TCU --> MCU --> BMS --> LDC --> HCU]
For example, if a BMS is replaced and is identified as requiring an update per Step 2 of this procedure, the ignition should remain OFF and OK should be clicked on the first three pop-up screens. On the fourth pop-up screen, turn ignition ON and click OK and allow the module to be updated. For the remaining pop-up screens, leave the ignition OFF.
In the case of an HPCU replacement, all internal modules (MCU, LDC, and HCU) should be checked and updated if necessary. If all three modules require an update, this can be done by turning the ignition ON for only the third, fifth, and sixth pop-up windows.
A confirmation of the upgrade process is displayed at the conclusion of the updates, and this screen info should be checked to ensure that the appropriate updates were performed correctly.