Code result
P0C3B
DC/DC Converter Temperature Sensor A High
High severity
What it means
The ECM detects a high fault on the dc/dc converter temperature sensor a. Reading cannot be used reliably for control.
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
Signal wire shorted to B+
highOne of the most commonly reported causes for this code — check this first.
Open sensor
mediumA plausible cause — test and verify before replacing parts.
Related help
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