U0345Software Incompatibility With Hybrid/EV Battery Interface Control Module L
- Generic OBD-II code · Network
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- L is the twelfth letter and thus the last board on packs with twelve, such as the twelve CSCs of BMW's i8, provided a maker counted them this way. The mismatch behind U0345 is easy to create during battery repair. Kia's bulletin ELE 151 for the 2011–2016 Optima Hybrid allows a BMS update only when the traction battery is swapped for a part number of the new generation, so that the controller logic matches the new pack; the right flash is confirmed by pack number and ROM ID, and the upgrade must run in manual mode, since auto mode is ruled out. Old pack, new logic or the reverse is exactly the pairing to avoid. U01AB is the code for a silent L, U04AC for implausible data from it.
- What you may notice
- Hybrid warning after high-voltage battery replacement
- Electric assist reduced
- MIL possible on hybrids
- Likely causes
- LikelyBattery controller logic and pack generation do not match
- PossibleUpdate for new-generation packs applied to an old-generation pack
- RareTwelfth board replaced with a unit of another software level
- Inspection (ITP)
- Can matter for the ITP: it concerns the emissions system.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.