What does code P0C79 mean?

Q: What does code P0C79 mean?

Drive Motor A Inverter Voltage Too High. P0C79 indicates that the inverter responsible for converting direct current (DC) to alternating current (AC) for drive motor A has reported a voltage level that exceeds the manufacturer's specified maximum. The hybrid or electric vehicle control module sets this code when it detects the high-voltage bus or inverter internal circuit rising above a safe threshold, often during regenerative braking or charging events.

DTC codes / P0Cxx · Hybrid propulsion / P0C79

P0C79Drive Motor A Inverter Voltage Too High

P0C79 indicates that the inverter responsible for converting direct current (DC) to alternating current (AC) for drive motor A has reported a voltage level that exceeds the manufacturer's specified maximum. The hybrid or electric vehicle control module sets this code when it detects the high-voltage bus or inverter internal circuit rising above a safe threshold, often during regenerative braking or charging events.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.