Code result
P0AA4
Hybrid Battery Negative Contactor Circuit
High severity
What it means
BMS detects an electrical fault in the negative HV contactor coil circuit.
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
Contactor coil open
highOne of the most commonly reported causes for this code — check this first.
Related help
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