Technical Background
If a high-voltage module is replaced, certain steps must be performed to update the build status documentation and, depending on the manufacturer of the high-voltage module, to reconfigure the hybrid management control unit (diagnostic address: 008C).
1. Updating build status documentation (high-voltage module manufacturers LG Chem, CATL and SK)
2. Reconfiguring the hybrid management control unit (only for high-voltage modules from manufacturer LG Chem)
1. Updating build status documentation (high-voltage module manufacturers LG Chem, CATL and SK):
This step applies to high-voltage modules from manufacturers LG Chem, CATL and SK.
Please note that build status documentation must be carried out for the high-voltage modules which are both removed and installed. The build status is documented using ODIS and the scanner -VAS 6161/1a-.
Please note that the scanner -VAS 6161/1a- must first be configured before being used.
Select the following path in ODIS:
| • | Systems with diagnostic capability |
| • | 008C - Hybrid battery management - J840 |
| • | 008C - Hybrid Battery Energy Management - Technical Product Information |
| • | 008C - CarPort BM build status documentation |
2. Reconfiguring the hybrid management control unit (only for high-voltage module manufacturer LG Chem):
This step is
onlynecessary for high-voltage modules from manufacturer LG Chem.The high-voltage module manufacturer can be found on the type plate of the high-voltage module (see Figure 1, highlighted in green).
Figure 1.Type plate on the high-voltage module from manufacturer LG Chem.
The reconfiguration is necessary so that the replaced high-voltage module is not shown as defective when the "AX2 - High-voltage battery 1 - Check cell equalization" test program is run again after a high-voltage module has been replaced. This means that repeat repairs can be avoided.
Step 1: Updating/configuring software (via measure code)
| • | Connect the battery charger and switch it on. |
| • | Place the vehicle key (remote control) in the center console on the reader coil. |
| • | Move driving mode selector to position P. |
| • | Connect ODIS (with online capability) to the diagnostic connector on the vehicle and connect to workshop server. |
| • | In"Diagnosis”mode, select the"Start diagnosis"function and identify the vehicle. |
| • | Once the control units have been identified,"Guided Fault Finding"will start automatically. |
| • | Follow the instructions on the ODIS screen. |
| • | Select the"Update software"function in"Special functions"mode. |
| • | The software is updated via"2. Update software via measure code". |
| • | Enter measure code8CA013and confirm. |
| • | Follow the instructions on the ODIS screen for the rest of the program. |
Step 2: Activating bus sleep mode
Perform the following work steps in the specified order so that the vehicle is put into bus sleep mode:
| • | Switch the ignition off. |
| • | Unplug the diagnostic interface from the vehicle diagnostic connection. |
| • | Disconnect battery charger. |
| • | Close the bonnet, boot lid and all doors. Then lock the vehicle from the outside with the vehicle key (remote control). Place the vehicle key (remote control) at least 20 meters away from the vehicle. |
| • | Wait at least 15 minutes for the vehicle to enter bus sleep mode. |
| • | Unlock the vehicle again using the vehicle key (remote control). |
| • | Connect the battery charger and switch it on. |
| • | Plug the diagnostic interface into the vehicle diagnostic connection. |
| • | Place the vehicle key (remote control) in the center console on the reader coil. |
| • | Move driving mode selector to positionP. |
Step 3: Updating/configuring software (via measure code)
| • | Connect to ODIS (with online capability) to diagnostic connector on the vehicle and connect to workshop server. |
| • | In"Diagnosis”mode, select the"Start diagnosis"function and identify the vehicle. |
| • | Once the control units have been identified,"Guided Fault Finding"will start automatically. |
| • | Follow the instructions on the ODIS screen. |
| • | Select the"Update software"function in"Special functions"mode. |
| • | The software is updated via"2. Update software via measure code". |
| • | Enter measure code8CB013and confirm. |
| • | Follow the instructions on the ODIS screen for the rest of the program. |
Do not yet exit the application after successfully updating/configuring the software.
Step 4: Adapting VKMS and exiting diagnosis
Switch the infotainment system to "offline mode" before performing the test program.
| • | Turn the ignition off and on. |
| • | Activate vehicle’s drive system. |
| • | Add the"VKMS adaptation"test program to the test plan. |
| • | Select the following points under"Select own test": | ‒ | “Systems with diagnostic capability” |
| ‒ | "VKMS adaptation" and attach to the test plan. |
|
| • | Start the"VKMS adaptation"test program. |
| • | Continue to follow the instructions on the ODIS tester. |
| • | End the diagnostic session after the test program has been completed. The event memory entries will then be automatically deleted. |
Additional Information
All part and service references provided in this TSB (2077497) are subject to change and/or removal. Always check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
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