Code result
P0A09
DC/DC Converter Status Circuit
High severity
What it means
The hybrid control module detects an electrical fault on the DC/DC converter status feedback line. This converter steps high-voltage battery output down to 12 V for the auxiliary system.
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
DC/DC converter internal fault
highOne of the most commonly reported causes for this code — check this first.
Communication loss with converter
mediumA plausible cause — test and verify before replacing parts.
Related help
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