ICCU Monitor Logs Data in E-GMP EV Failures

EVs are less mechanically complicated than their combustion kin, but that doesnβt mean theyβre immune to component failure. The Integrated Charge Control Unit (ICCU) has been the main failure point in recent Hyundai/Kia EVs, and ICCU Observer is an attempt to log data from the systems to find the culprit.
The ICCU handles all charging and voltage conversion duties from 800 V down to 12 V in the E-GMP platform EVs from Hyundai, Kia, and Genesis. The main failure mode appears to be when the circuit charging the 12 V fails, eventually rendering the vehicle inoperable. While the rate of failure is relatively low, the exact numbers are unknown, and Hyundai has remained quiet on if they know whatβs causing it.
Unsurprisingly, speculation is rampant with owners experiencing failures relaying similarities and differences to others with the same problem. In an effort to bring actual data to the process, [broadwall] has started working on an open data set of information collected over the vehicleβs OBD II port in an effort to pinpoint similarities between the vehicles that have experienced failures.
Hyundai is currently replacing the failed units under warranty (recently expanded to 15 years in most markets), but thatβs little comfort when youβre sitting on the side of the road waiting for a tow. These failures stand out in an otherwise easy to maintain platform, so hopefully this effort will lead to a permanent fix instead of merely swapping out for a new unit.
If youβd like to explore data analysis a little further, how about using astrophotography to detect exoplanets or learning more from Stanford?















