Code result
P0C31
Inverter B Cooling System Performance
High severity
What it means
The inverter B cooling system does not maintain target temperatures under load. Coolant flow reduced, fan failure, or radiator fouling.
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
Coolant flow reduced
highOne of the most commonly reported causes for this code — check this first.
Cooling fan failure
mediumA plausible cause — test and verify before replacing parts.
Related help
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