Jun 5, 2017 · When diagnosing with ISTA or ISTA Next, a fault code (detailed below), regarding the cell voltage measurement, is entered in the battery management electronics (SME). The customer might not have reported the situation as the fault code could have no effect on the vehicle operation.

The BMW SME (Smart Battery System Module) is an essential component in modern BMW vehicles, responsible for managing the high-voltage battery and electrical system. When this module fails, it can cause serious performance issues.

Jan 21, 2025 · Here we will show how to repair BMW SME module using CG100X programmer. This is the SME (System Management Unit) High-Voltage battery cell module. Remove and disassemble the SME module.

Feb 26, 2022 · By "SME battery", do you mean the auxiliary 12V battery up front? The SME is within the HV battery and is the cell management electronics.

Sep 2, 2022 · The 21F1F6 code is from the SME module (battery safety box) inside the high voltage battery pack. The EME will not work properly until this code can be cleared by inputting a special code into ISTA to unlock the SME high voltage contactors.

Dec 6, 2016 · Always connect a BMW approved battery charger/power supply (SI B04 23 10 ). For information on programming and coding with ISTA/P, refer to CenterNet / TIS / Technical Documentation / Diagnostics and Programming / Programming Documentation.

Jan 23, 2019 · The EOS tester is what locks the SME after testing, then ISTA unlocks it with the code the EOS tester provides. No EOS test or SME replacment=no code needed. Click to expand...

🚗 BMW SME HV Battery Module Repair with CG100X Programmer 🚗Welcome back to the channel! In today’s video, we’re going to show you how to repair the BMW SME...

Oct 23, 2019 · Ista/p or ISTA Next would be my first choice for re-encoding the SME. That way it does all the post-coding follow up operations. If it prompts for you to replace the control unit, at that point you would need to switch to E-Sys and manually encode the …

Mar 23, 2018 · The SME regularly wakes up from its rest phases and compares all the cell voltages to one another. Since the adjustment of the cell voltages can only take place via a targeted discharge of the individual battery cells, those with a clearly higher cell voltage, compared to the weakest battery cells, are the ones which are selected.