Hybspec

P0A78

Wysoki

Motor/Generator A — Excessive Current Draw

OBD-II (EN): Hybrid Motor/Generator A - Excessive Current Draw

Code P0A78 signals excessive current draw by the electric motor. It may indicate a short circuit in the winding, a faulty inverter, or mechanical locking. Immediate diagnosis is required.

Symptoms

Sudden shutdown of electric drive, warning light, torque limitation

Possible causes

Short circuit in electric motor winding, faulty inverter (IGBT), mechanical motor lock, resolver position sensor problem

Affected systems

Napęd EV/HEVSilnik (motor)Inwerter

Related codes

Does code P0A78 require professional diagnostics?

The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.