DTC codes / P0Axx · Hybrid propulsion / P0A5F
P0A5F means the hybrid or electric vehicle controller has detected that the current flowing through phase U of drive motor A is higher than the calibrated safe limit for the operating conditions. The computer compares commanded torque against measured phase current and flags the fault when the U-phase current exceeds the expected threshold, indicating a short, excessive load, or a control problem in that phase circuit.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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