Code result
P0AA2
Hybrid/EV Battery Positive Contactor Circuit Stuck Open
High severity
What it means
The HV battery positive contactor is stuck in the open position. Charging or discharging the HV bus is not possible.
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 mechanically failed
highOne of the most commonly reported causes for this code — check this first.
Contactor coil burnt out
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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