P2C81
AIR System Pump Overtemperature Bank 1
The AIR pump on bank 1 reports temperature above the protection threshold. Sustained operation, blocked outlet, or cooling path obstruction.
The AIR pump on bank 1 reports temperature above the protection threshold. Sustained operation, blocked outlet, or cooling path obstruction.
Common causes
- high
Pump outlet restricted
One of the most commonly reported causes for this code — check this first.
Typical part cost: $220-1320
- medium
Sustained pump operation
A plausible cause — test and verify before replacing parts.
Typical part cost: $220-1320
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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 P2C81 mean?
P2C81 means "AIR System Pump Overtemperature Bank 1". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2C81?
pump outlet restricted; sustained pump operation — 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?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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