Code result
P0A12
DC/DC Converter Communication
High severity
What it means
The hybrid control module loses CAN bus communication with the DC/DC converter for longer than the fault threshold.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
CAN bus fault
highOne of the most commonly reported causes for this code — check this first.
Converter unpowered or offline
mediumA plausible cause — test and verify before replacing parts.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
Related help
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