Hyundai
Drive motor inverter over temperature (hybrid power control unit).
P0A3C fault code: what it means
P0A3C: Drive motor inverter over temperature (hybrid power control unit).
Usual causes, most likely first
- hybrid power control unit (HPCU) overheating, software fix under recall 26V308 (2024-26 Elantra Hybrid)
- low inverter coolant or failed electric coolant pump
P0A3C by make
What the repair usually costs
- Water pump replacement (belt-driven, not behind timing cover)NZ$340–NZ$770 · A$340–A$760
- Hybrid inverter coolant drain, refill and bleedNZ$110–NZ$270 · A$120–A$280
- EV drive motor bearing noise repair (unit out, bearings replaced)NZ$1,120–NZ$2,950 · A$1,200–A$3,090
- EV drive unit / motor replace (exchange or used)NZ$5,580–NZ$15,340 · A$6,120–A$16,200
Not sure what P0A3C means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.