Air Metering Codes
484 OBD-II diagnostic trouble codes in this category.
Showing page 5 of 5 (484 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P25B4 | Turbocharger/Supercharger Wastegate A Stuck Closed | Turbocharger | Medium |
| P25B5 | Turbocharger/Supercharger Wastegate B Stuck Open | Turbocharger | Medium |
| P25B6 | Turbocharger/Supercharger Wastegate B Stuck Closed | Turbocharger | Medium |
| P25C4 | Brake Booster Temperature Sensor A Circuit | Turbocharger | Medium |
| P25C5 | Brake Booster Temperature Sensor A Circuit Range/Performance | Turbocharger | Medium |
| P25C6 | Brake Booster Temperature Sensor A Circuit Low | Turbocharger | Medium |
| P25C7 | Brake Booster Temperature Sensor A Circuit High | Turbocharger | Medium |
| P25C8 | Brake Booster Temperature Sensor A Circuit Intermittent/Erratic | Turbocharger | Medium |
| P25EA | Supercharger Disconnect Clutch Stuck Closed | Turbocharger | Medium |
| P25EB | Supercharger Disconnect Clutch Circuit Range/Performance | Turbocharger | Medium |
| P25EC | Supercharger Disconnect Clutch Circuit Low | Turbocharger | Medium |
| P25ED | Supercharger Disconnect Clutch Circuit High | Turbocharger | Medium |
| P25F2 | Turbocharger/Supercharger Boost Sensor C Circuit | Turbocharger | Medium |
| P25F3 | Turbocharger/Supercharger Boost Sensor C Circuit Range/Performance | Turbocharger | Medium |
| P25F4 | Turbocharger/Supercharger Boost Sensor C Circuit Low | Turbocharger | Medium |
| P25F5 | Turbocharger/Supercharger Boost Sensor C Circuit High | Turbocharger | Medium |
| P25F8 | Turbocharger/Supercharger Bypass Valve C Control Circuit | Turbocharger | Medium |
| P25F9 | Turbocharger/Supercharger Bypass Valve C Control Circuit Low | Turbocharger | Medium |
| P25FA | Turbocharger/Supercharger Bypass Valve C Control Circuit High | Turbocharger | Medium |
| P25FB | Turbocharger/Supercharger Bypass Valve C Control Circuit Range/Performance | Turbocharger | Medium |
| P25FC | Turbocharger/Supercharger Bypass Valve C – Mechanical | Turbocharger | Medium |
| P25FD | Turbocharger/Supercharger Bypass Valve C Temperature Too High | Turbocharger | Medium |
| P25FE | Supercharger Disconnect Clutch | Turbocharger | Medium |
| P2600 | Coolant Pump Control Circuit/Open | Cooling System | High |
| P2601 | Coolant Pump Control Circuit Range/Performance | Cooling System | High |
| P2602 | Coolant Pump Control Circuit Low | Cooling System | Critical |
| P2603 | Coolant Pump Control Circuit High | Cooling System | Medium |
| P2678 | Coolant Degassing Valve Control Circuit/Open | Cooling System | Medium |
| P2679 | Coolant Degassing Valve Control Circuit Low | Cooling System | Medium |
| P2680 | Coolant Degassing Valve Control Circuit High | Cooling System | Medium |
| P2681 | Engine Coolant Bypass Valve A Control Circuit/Open | Cooling System | Medium |
| P2682 | Engine Coolant Bypass Valve A Control Circuit Low | Cooling System | Medium |
| P2683 | Engine Coolant Bypass Valve A Control Circuit High | Cooling System | Medium |
| P2ABD | Turbocharger/Supercharger Wastegate Actuator A Driver Current/Temperature Too High | Turbocharger | Medium |
| P2ABE | Turbocharger/Supercharger Wastegate Actuator B Driver Current/Temperature Too High | Turbocharger | Medium |
| P2B6E | Turbocharger/Supercharger A Temperature Sensor Circuit | Turbocharger | Medium |
| P2B6F | Turbocharger/Supercharger A Temperature Sensor Circuit Low | Turbocharger | Medium |
| P2B70 | Turbocharger/Supercharger A Temperature Sensor Circuit High | Turbocharger | Medium |
| P2B71 | Turbocharger/Supercharger A Temperature Sensor Circuit Circuit Range/Performance | Turbocharger | Medium |
| P2B7F | Turbocharger/Supercharger Boost Control Module A Calibration Not Learned/Programmed | Turbocharger | Medium |
| P2B80 | Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed | Turbocharger | Medium |
| P2B8F | Turbocharger/Supercharger B Temperature Sensor Circuit | Turbocharger | Medium |
| P2B90 | Turbocharger/Supercharger B Temperature Sensor Circuit Low | Turbocharger | Medium |
| P2B91 | Turbocharger/Supercharger B Temperature Sensor Circuit High | Turbocharger | Medium |
| P2B92 | Turbocharger/Supercharger B Temperature Sensor Circuit Circuit Range/Performance | Turbocharger | Medium |
| P2BBB | Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit | Turbocharger | Medium |
| P2BBC | Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit Low | Turbocharger | Medium |
| P2BBD | Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit High | Turbocharger | Medium |
| P2BBE | Turbocharger/Supercharger Bypass Valve A Position Exceeded Learning Limit | Turbocharger | Medium |
| P2BBF | Turbocharger/Supercharger Bypass Valve A Supply Voltage Low | Turbocharger | Medium |
| P2BC0 | Turbocharger/Supercharger Bypass Valve A Driver Current/Temperature Too High | Turbocharger | Medium |
| P2C29 | Turbocharger/Supercharger Bypass Valve B Stuck | Turbocharger | Medium |
| P2C2A | Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit/Open | Turbocharger | Medium |
| P2C2B | Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit Low | Turbocharger | Medium |
| P2C2C | Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit High | Turbocharger | Medium |
| P2C2D | Turbocharger/Supercharger Bypass Valve B Position Exceeded Learning Limit | Turbocharger | Medium |
| P2C2E | Turbocharger/Supercharger Bypass Valve B Supply Voltage Low | Turbocharger | Medium |
| P2C2F | Turbocharger/Supercharger Bypass Valve B Driver Current/Temperature Too High | Turbocharger | Medium |
| P2C7B | Turbocharger Turbine Inlet Valve Control Performance | Turbocharger | Medium |
| P2C7C | Turbocharger Turbine Inlet Valve Supply Circuit Low | Turbocharger | Medium |
| P2C7D | Turbocharger Turbine Inlet Valve Motor Driver High Current | Turbocharger | Medium |
| P2C7E | Turbocharger Turbine Inlet Valve Motor Driver Overtemperature | Turbocharger | Medium |
| P2C7F | Turbocharger Turbine Inlet Valve Position Sensor Exceeded Learning Limit | Turbocharger | Medium |
| P2C9B | Cold Start Turbocharger/Supercharger Wastegate Actuator A Range/Performance | Turbocharger | Medium |
| P2C9C | Cold Start Turbocharger/Supercharger Wastegate Actuator B Range/Performance | Turbocharger | Medium |
| P2CB6 | Turbocharger/Supercharger B Boost System Performance | Turbocharger | Medium |
| P2CB7 | Turbocharger/Supercharger Boost Pressure B Not Detected – Mechanical | Turbocharger | Medium |
| P2CB8 | Turbocharger/Supercharger Boost Pressure B Too High – Mechanical | Turbocharger | Medium |
| P2CD5 | Turbocharger/Supercharger Bypass Valve C Stuck | Turbocharger | Medium |
| P2CD6 | Turbocharger/Supercharger Boost Sensor D Circuit | Turbocharger | Medium |
| P2CD7 | Turbocharger/Supercharger Boost Sensor D Circuit Range/Performance | Turbocharger | Medium |
| P2CD8 | Turbocharger/Supercharger Boost Sensor D Circuit Low | Turbocharger | Medium |
| P2CD9 | Turbocharger/Supercharger Boost Sensor D Circuit High | Turbocharger | Medium |
| P2D21 | Turbocharger Interstage Pressure Sensor A Circuit | Turbocharger | Medium |
| P2D22 | Turbocharger Interstage Pressure Sensor A Circuit Range/Performance | Turbocharger | Medium |
| P2D23 | Turbocharger Interstage Pressure Sensor A Circuit Low | Turbocharger | Medium |
| P2D24 | Turbocharger Interstage Pressure Sensor A Circuit High | Turbocharger | Medium |
| P2D25 | Turbocharger Interstage Pressure Sensor A Circuit Intermittent/Erratic | Turbocharger | Medium |
| P2D2F | Cold Start Turbocharger/Supercharger A Underboost | Turbocharger | Medium |
| P2D30 | Cold Start Turbocharger/Supercharger A Overboost | Turbocharger | Medium |
| P2EA6 | Turbocharger Compressor Outlet Temperature Sensor Circuit | Turbocharger | Medium |
| P2EC0 | Turbocharger Compressor Outlet Temperature Sensor Circuit Low | Turbocharger | Medium |
| P2EC1 | Turbocharger Compressor Outlet Temperature Sensor Circuit High | Turbocharger | Medium |
| P2EC2 | Turbocharger Compressor Outlet Temperature Sensor Circuit Range/Perfomance | Turbocharger | Medium |
About Air Metering Codes
This page lists all 484 OBD-II diagnostic trouble codes classified under the Air Metering category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the air metering system. Each code begins with a letter indicating the system (P for Powertrain, B for Body, C for Chassis, U for Network) followed by four digits that identify the specific fault.
When your check engine light comes on, an OBD-II scanner reads these stored codes to help pinpoint the problem. Generic codes (where the second digit is 0) follow the SAE J2012 standard and mean the same thing on every vehicle. Manufacturer-specific codes (where the second digit is 1) may have different meanings depending on the vehicle brand.
Click any code in the table above to see its full description, possible causes, common symptoms, and step-by-step repair guidance. Use the search box to quickly find a specific code within this category.