Fuel System Codes
5,039 OBD-II diagnostic trouble codes in this category.
Showing page 47 of 51 (5,039 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P2C6C | Drive Motor “A” Phase Y Current | Fuel Metering | Medium |
| P2C6D | Drive Motor “A” Phase Y Current Low | Fuel Metering | Medium |
| P2C6E | Drive Motor “A” Phase Y Current High | Fuel Metering | Medium |
| P2C6F | Drive Motor “A” Phase Z Current | Fuel Metering | Medium |
| P2C70 | Drive Motor “A” Phase Z Current Low | Fuel Metering | Medium |
| P2C71 | Drive Motor “A” Phase Z Current High | Fuel Metering | Medium |
| P2C72 | Hybrid/EV Electronics Cooling System Performance | Fuel Metering | Medium |
| P2C73 | Active Grille Air Shutter C Stuck On | Fuel Metering | Medium |
| P2C74 | Active Grille Air Shutter C Control Circuit Range/Performance | Fuel Metering | Medium |
| P2C75 | Active Grille Air Shutter Module C Over Temperature | Fuel Metering | Medium |
| P2C76 | Active Grille Air Shutter D Stuck On | Fuel Metering | Medium |
| P2C77 | Active Grille Air Shutter D Control Circuit Range/Performance | Fuel Metering | Medium |
| P2C78 | Active Grille Air Shutter Module D Over Temperature | Fuel Metering | Medium |
| P2C79 | NOx Adsorber - Sulfur Limit Exceeded | Fuel Metering | Medium |
| P2C7A | SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 2 | Fuel Metering | Medium |
| P2C80 | AIR System Pump Overspeed Bank 1 | Fuel Metering | Medium |
| P2C81 | AIR System Pump Overtemperature Bank 1 | Fuel Metering | Medium |
| P2C82 | AIR System Pump Supply Voltage Circuit Bank 1 | Fuel Metering | Medium |
| P2C83 | Cold Start Shift Time Too Short | Fuel Metering | Medium |
| P2C84 | Cold Start Shift Time Too Long | Fuel Metering | Medium |
| P2C85 | Hybrid/EV Battery Voltage External Isolation Fault | Fuel Metering | Medium |
| P2C86 | Hybrid/EV Battery Voltage Internal Isolation Warning | Fuel Metering | Medium |
| P2C87 | Hybrid/EV Battery Voltage External Isolation Warning | Fuel Metering | Medium |
| P2C88 | Hybrid/EV Battery Voltage System Isolation Warning | Fuel Metering | Medium |
| P2C89 | Hybrid/EV Battery System Precharge Current Too High | Fuel Metering | Medium |
| P2C8A | Hybrid/EV Battery Interface Control Module A Performance | Fuel Metering | Medium |
| P2C8B | Hybrid/EV Battery Interface Control Module B Performance | Fuel Metering | Medium |
| P2C8C | DC/DC Converter Temperature Sensor D Circuit | Fuel Metering | Medium |
| P2C8D | DC/DC Converter Temperature Sensor D Circuit Range/Performance | Fuel Metering | Medium |
| P2C8E | DC/DC Converter Temperature Sensor D Circuit Low | Fuel Metering | Medium |
| P2C8F | DC/DC Converter Temperature Sensor D Circuit High | Fuel Metering | Medium |
| P2C92 | Hybrid/EV Battery Contactor Control Supply Circuit/Open | Fuel Metering | Medium |
| P2C93 | Hybrid/EV Battery Contactor Control Supply Circuit Range/Performance | Fuel Metering | Medium |
| P2C94 | Hybrid/EV Battery Contactor Control Supply Circuit Low | Fuel Metering | Medium |
| P2C95 | Hybrid/EV Battery Contactor Control Supply Circuit High | Fuel Metering | Medium |
| P2C96 | Hybrid/EV Battery Disable Circuit/Open | Fuel Metering | Medium |
| P2C97 | Hybrid/EV Battery Disable Circuit Low | Fuel Metering | Medium |
| P2C98 | Hybrid/EV Battery Disable Circuit High | Fuel Metering | Medium |
| P2C99 | Throttle Actuator A Control Exceeded Learning Limit | Fuel Metering | Medium |
| P2C9A | Throttle Actuator B Control Exceeded Learning Limit | Fuel Metering | Medium |
| P2C9D | Fuel Pressure Regulator C Exceeded Control Limits - Pressure Too High | Fuel Metering | Medium |
| P2C9E | Fuel Pressure Regulator C Exceeded Control Limits - Pressure Too Low | Fuel Metering | Medium |
| P2C9F | Fuel Pressure Regulator D Exceeded Control Limits - Pressure Too High | Fuel Metering | Medium |
| P2CA0 | Fuel Pressure Regulator D Exceeded Control Limits - Pressure Too Low | Fuel Metering | Medium |
| P2CA1 | Charge Air Cooler Coolant Pump Sense Circuit High | Fuel Metering | Medium |
| P2CA2 | Charge Air Cooler Coolant Pump Sense Circuit Low | Fuel Metering | Medium |
| P2CA3 | Charge Air Cooler Coolant Pump Sense Circuit Performance | Fuel Metering | Medium |
| P2CA4 | Particulate Filter Pressure Sensor Signals Swapped A/B | Fuel Metering | Medium |
| P2CA5 | DC/DC Converter Temperature Sensor E Circuit | Fuel Metering | Medium |
| P2CA6 | DC/DC Converter Temperature Sensor E Circuit Low | Fuel Metering | Medium |
| P2CA7 | DC/DC Converter Temperature Sensor E Circuit High | Fuel Metering | Medium |
| P2CA8 | DC/DC Converter Temperature Sensor E Circuit Range/Performance | Fuel Metering | Medium |
| P2CA9 | DC/DC Converter Temperature Sensor F Circuit | Fuel Metering | Medium |
| P2CAA | DC/DC Converter Temperature Sensor F Circuit Low | Fuel Metering | Medium |
| P2CAB | DC/DC Converter Temperature Sensor F Circuit High | Fuel Metering | Medium |
| P2CAC | DC/DC Converter Temperature Sensor F Circuit Range/Performance | Fuel Metering | Medium |
| P2CAD | Charge Air Cooler Coolant Pump B Control Circuit/Open | Fuel Metering | Medium |
| P2CAE | Charge Air Cooler Coolant Pump B Control Circuit Low | Fuel Metering | Medium |
| P2CAF | Charge Air Cooler Coolant Pump B Control Circuit High | Fuel Metering | Medium |
| P2CB0 | Charge Air Cooler Coolant Pump B Performance | Fuel Metering | Medium |
| P2CB1 | Charge Air Cooler Coolant Pump B Overspeed/Air In System | Fuel Metering | Medium |
| P2CB2 | Charge Air Cooler Coolant Pump B Underspeed | Fuel Metering | Medium |
| P2CB3 | Charge Air Cooler Coolant Pump B Stuck/Stalled | Fuel Metering | Medium |
| P2CB4 | Charge Air Cooler Coolant Pump B Supply Voltage Circuit | Fuel Metering | Medium |
| P2CB5 | Charge Air Cooler Coolant Pump B Control Module Overtemperature | Fuel Metering | Medium |
| P2CB9 | Fan 2 Underspeed | Fuel Metering | Medium |
| P2CBA | Fan 2 Overspeed | Fuel Metering | Medium |
| P2CBB | Fan 3 Underspeed | Fuel Metering | Medium |
| P2CBC | Fan 3 Overspeed | Fuel Metering | Medium |
| P2CBD | PCV Heater “B” Control Circuit /Open | Fuel Metering | Medium |
| P2CBE | PCV Heater “B” Control Circuit High | Fuel Metering | Medium |
| P2CBF | PCV Heater “B” Control Circuit Low | Fuel Metering | Medium |
| P2CC0 | PCV Heater “B” Performance | Fuel Metering | Medium |
| P2CC1 | Generator Voltage Sense Circuit B | Fuel Metering | Medium |
| P2CC2 | Generator Voltage Sense Circuit B Range/Performance | Fuel Metering | Medium |
| P2CC3 | Generator Voltage Sense Circuit B Low | Fuel Metering | Medium |
| P2CC4 | Generator Voltage Sense Circuit B High | Fuel Metering | Medium |
| P2CC5 | Generator Inverter Power Supply B Circuit/Open | Fuel Metering | Medium |
| P2CC6 | Generator Inverter Power Supply B Circuit Low | Fuel Metering | Medium |
| P2CC7 | Generator Inverter Power Supply B Circuit High | Fuel Metering | Medium |
| P2CC8 | Coolant Pump Speed Sensor Circuit | Fuel Metering | Medium |
| P2CC9 | Coolant Pump Speed Sensor Range/Performance | Fuel Metering | Medium |
| P2CCA | Coolant Pump Speed Sensor Circuit Low | Fuel Metering | Medium |
| P2CCB | Coolant Pump Speed Sensor Circuit High | Fuel Metering | Medium |
| P2CCC | Hybrid/EV Battery Pack G Deterioration | Fuel Metering | Medium |
| P2CCD | Hybrid/EV Battery Pack H Deterioration | Fuel Metering | Medium |
| P2CCE | Hybrid/EV Battery Pack I Deterioration | Fuel Metering | Medium |
| P2CCF | Hybrid/EV Battery Pack J Deterioration | Fuel Metering | Medium |
| P2CD0 | Hybrid/EV Battery Pack K Deterioration | Fuel Metering | Medium |
| P2CD1 | Hybrid/EV Battery Pack L Deterioration | Fuel Metering | Medium |
| P2CD2 | Hybrid/EV Battery Pack M Deterioration | Fuel Metering | Medium |
| P2CD3 | Hybrid/EV Battery Pack N Deterioration | Fuel Metering | Medium |
| P2CD4 | A/C Refrigerant Pressure Sensor A/B Correlation | Fuel Metering | Medium |
| P2CDA | Alternative Fuel Tank A Vacuum Insulation Deteriorated | Fuel Metering | Medium |
| P2CDB | Cold Start Cylinder 1 Deactivation/Intake Valve Control Performance | Fuel Metering | Medium |
| P2CDC | Cold Start Cylinder 2 Deactivation/Intake Valve Control Performance | Fuel Metering | Medium |
| P2CDD | Cold Start Cylinder 3 Deactivation/Intake Valve Control Performance | Fuel Metering | Medium |
| P2CDE | Cold Start Cylinder 4 Deactivation/Intake Valve Control Performance | Fuel Metering | Medium |
| P2CDF | Cold Start Cylinder 5 Deactivation/Intake Valve Control Performance | Fuel Metering | Medium |
| P2CE0 | Cold Start Cylinder 6 Deactivation/Intake Valve Control Performance | Fuel Metering | Medium |
About Fuel System Codes
This page lists all 5,039 OBD-II diagnostic trouble codes classified under the Fuel System category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the fuel system 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.