OBD-II code · Powertrain (generic, extended)
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.
Is it safe to drive with P2C81?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump outlet restricted
- PossibleSustained pump operation
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Secondary Air Injection Pump B1, Wiring Harness, Ecm
Related codes
- P2C7ETurbocharger Turbine Inlet Valve Motor Driver Overtemperature
- P2C7FTurbocharger Turbine Inlet Valve Position Sensor Exceeded Learning Limit
- P2C80AIR System Pump Overspeed Bank 1
- P2C82AIR System Pump Supply Voltage Circuit Bank 1
- P2C83Cold Start Shift Time Too Short
- P2C84Cold Start Shift Time Too Long
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.