Code result
P0A4A
Drive Motor B Position Sensor Circuit Overspeed
High severity
What it means
The drive motor B rotor position sensor reports a circuit overspeed fault. Phase commutation cannot be controlled reliably.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Rotor position out of expected range
highOne of the most commonly reported causes for this code — check this first.
Position signal lost - default to overspeed indication
mediumA plausible cause — test and verify before replacing parts.
Related help
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