Code result
P0CA2
DC/DC Converter Step Down Voltage Performance
High severity
What it means
The DC/DC converter step-down (buck) voltage performance is outside calibration. Output voltage does not match commanded value.
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
Regulator characteristic drifted
highOne of the most commonly reported causes for this code — check this first.
Load mismatch
mediumA plausible cause — test and verify before replacing parts.
Related help
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