P2C72
Hybrid/EV Electronics Cooling System Performance
The hybrid control module detects that the power electronics cooling system does not maintain target temperatures under load. Coolant flow, radiator fouling, or pump output reduced.
The hybrid control module detects that the power electronics cooling system does not maintain target temperatures under load. Coolant flow, radiator fouling, or pump output reduced.
Common causes
- high
Radiator fins fouled - reduced heat rejection
One of the most commonly reported causes for this code — check this first.
Typical part cost: $220-1650
- medium
Coolant aged - reduced heat capacity
A plausible cause — test and verify before replacing parts.
Typical part cost: $220-1650
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P2C72 mean?
P2C72 means "Hybrid/EV Electronics Cooling System Performance". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2C72?
radiator fins fouled - reduced heat rejection; coolant aged - reduced heat capacity — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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