Fuel System Codes
5,039 OBD-II diagnostic trouble codes in this category.
Showing page 20 of 51 (5,039 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P0C6A | Generator Position Sensor Circuit B Range/Performance | Fuel Metering | Medium |
| P0C6B | Generator Position Sensor Circuit B Low | Fuel Metering | Medium |
| P0C6C | Generator Position Sensor Circuit B High | Fuel Metering | Medium |
| P0C6D | Generator Position Sensor Circuit B Intermittent/Erratic | Fuel Metering | Medium |
| P0C6E | Hybrid/EV Battery Temperature Sensor A/B Correlation | Fuel Metering | Medium |
| P0C6F | Hybrid/EV Battery Temperature Sensor B/C Correlation | Fuel Metering | Medium |
| P0C70 | Hybrid/EV Battery Temperature Sensor C/D Correlation | Fuel Metering | Medium |
| P0C71 | Hybrid/EV Battery Temperature Sensor D/E Correlation | Fuel Metering | Medium |
| P0C72 | Hybrid/EV Battery Temperature Sensor E/F Correlation | Fuel Metering | Medium |
| P0C73 | Motor Electronics Coolant Pump A Control Performance | Fuel Metering | Medium |
| P0C74 | Motor Electronics Coolant Pump B Control Performance | Fuel Metering | Medium |
| P0C75 | Hybrid/EV Battery System Discharge Time Too Short | Fuel Metering | Medium |
| P0C76 | Hybrid/EV Battery System Discharge Time Too Long | Fuel Metering | Medium |
| P0C77 | Hybrid/EV Battery System Precharge Time Too Short | Fuel Metering | Medium |
| P0C78 | Hybrid/EV Battery System Precharge Time Too Long | Fuel Metering | Medium |
| P0C79 | Drive Motor A Inverter Voltage Too High | Fuel Metering | Medium |
| P0C7A | Drive Motor B Inverter Voltage Too High | Fuel Metering | Medium |
| P0C7B | Generator Inverter Voltage Too High | Fuel Metering | Medium |
| P0C7C | Hybrid/EV Battery Temperature Sensor G Circuit | Fuel Metering | Medium |
| P0C7D | Hybrid/EV Battery Temperature Sensor G Circuit Range/Performance | Fuel Metering | Medium |
| P0C7E | Hybrid/EV Battery Temperature Sensor G Circuit Low | Fuel Metering | Medium |
| P0C7F | Hybrid/EV Battery Temperature Sensor G Circuit High | Fuel Metering | Medium |
| P0C80 | Hybrid/EV Battery Temperature Sensor G Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0C81 | Hybrid/EV Battery Temperature Sensor H Circuit | Fuel Metering | Medium |
| P0C82 | Hybrid/EV Battery Temperature Sensor H Circuit Range/Performance | Fuel Metering | Medium |
| P0C83 | Hybrid/EV Battery Temperature Sensor H Circuit Low | Fuel Metering | Medium |
| P0C84 | Hybrid/EV Battery Temperature Sensor H Circuit High | Fuel Metering | Medium |
| P0C85 | Hybrid/EV Battery Temperature Sensor H Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0C86 | Hybrid/EV Battery Temperature Sensor F/G Correlation | Fuel Metering | Medium |
| P0C87 | Hybrid/EV Battery Temperature Sensor G/H Correlation | Fuel Metering | Medium |
| P0C88 | Hybrid/EV Battery Temperature Sensor I Circuit | Fuel Metering | Medium |
| P0C89 | Hybrid/EV Battery Temperature Sensor I Range/Performance | Fuel Metering | Medium |
| P0C8A | Hybrid/EV Battery Temperature Sensor I Circuit Low | Fuel Metering | Medium |
| P0C8B | Hybrid/EV Battery Temperature Sensor I Circuit High | Fuel Metering | Medium |
| P0C8C | Hybrid/EV Battery Temperature Sensor I Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0C8D | Hybrid/EV Battery Temperature Sensor J Circuit | Fuel Metering | Medium |
| P0C8E | Hybrid/EV Battery Temperature Sensor J Range/Performance | Fuel Metering | Medium |
| P0C8F | Hybrid/EV Battery Temperature Sensor J Circuit Low | Fuel Metering | Medium |
| P0C90 | Hybrid/EV Battery Temperature Sensor J Circuit High | Fuel Metering | Medium |
| P0C91 | Hybrid/EV Battery Temperature Sensor J Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0C92 | Hybrid/EV Battery Temperature Sensor K Circuit | Fuel Metering | Medium |
| P0C93 | Hybrid/EV Battery Temperature Sensor K Range/Performance | Fuel Metering | Medium |
| P0C94 | Hybrid/EV Battery Temperature Sensor K Circuit Low | Fuel Metering | Medium |
| P0C95 | Hybrid/EV Battery Temperature Sensor K Circuit High | Fuel Metering | Medium |
| P0C96 | Hybrid/EV Battery Temperature Sensor K Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0C97 | Hybrid/EV Battery Temperature Sensor L Circuit | Fuel Metering | Medium |
| P0C98 | Hybrid/EV Battery Temperature Sensor L Range/Performance | Fuel Metering | Medium |
| P0C99 | Hybrid/EV Battery Temperature Sensor L Circuit Low | Fuel Metering | Medium |
| P0C9A | Hybrid/EV Battery Temperature Sensor L Circuit High | Fuel Metering | Medium |
| P0C9B | Hybrid/EV Battery Temperature Sensor L Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0C9C | 14 Volt Power Module Current Sensor B Circuit | Fuel Metering | Medium |
| P0C9D | 14 Volt Power Module Current Sensor B Circuit Range/Performance | Fuel Metering | Medium |
| P0C9E | 14 Volt Power Module Current Sensor B Circuit Low | Fuel Metering | Medium |
| P0C9F | 14 Volt Power Module Current Sensor B Circuit High | Fuel Metering | Medium |
| P0CA0 | 14 Volt Power Module Current Sensor B Circuit Intermittent | Fuel Metering | Medium |
| P0CA1 | Drive Motor Control Module Requested MIL Illumination | Fuel Metering | Medium |
| P0CA2 | DC/DC Converter Step Down Voltage Performance | Fuel Metering | Medium |
| P0CA3 | DC/DC Converter Step Up Voltage Performance | Fuel Metering | Medium |
| P0CA4 | Hybrid/EV Battery Charging Voltage High | Fuel Metering | Medium |
| P0CA5 | Hybrid/EV Battery Discharging Voltage High | Fuel Metering | Medium |
| P0CA6 | Hybrid/EV Battery Charging Current High | Fuel Metering | Medium |
| P0CA7 | Hybrid/EV Battery Discharging Current High | Fuel Metering | Medium |
| P0CA8 | Hybrid/EV Battery Temperature Sensor M Circuit | Fuel Metering | Medium |
| P0CA9 | Hybrid/EV Battery Temperature Sensor M Circuit Range/Performance | Fuel Metering | Medium |
| P0CAA | Hybrid/EV Battery Temperature Sensor M Circuit Low | Fuel Metering | Medium |
| P0CAB | Hybrid/EV Battery Temperature Sensor M Circuit High | Fuel Metering | Medium |
| P0CAC | Hybrid/EV Battery Temperature Sensor M Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0CAD | Hybrid/EV Battery Temperature Sensor N Circuit | Fuel Metering | Medium |
| P0CAE | Hybrid/EV Battery Temperature Sensor N Circuit Range/Performance | Fuel Metering | Medium |
| P0CAF | Hybrid/EV Battery Temperature Sensor N Circuit Low | Fuel Metering | Medium |
| P0CB0 | Hybrid/EV Battery Temperature Sensor N Circuit High | Fuel Metering | Medium |
| P0CB1 | Hybrid/EV Battery Temperature Sensor N Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0CB2 | Hybrid/EV Battery Temperature Sensor O Circuit | Fuel Metering | Medium |
| P0CB3 | Hybrid/EV Battery Temperature Sensor O Circuit Range/Performance | Fuel Metering | Medium |
| P0CB4 | Hybrid/EV Battery Temperature Sensor O Circuit Low | Fuel Metering | Medium |
| P0CB5 | Hybrid/EV Battery Temperature Sensor O Circuit High | Fuel Metering | Medium |
| P0CB6 | Hybrid/EV Battery Temperature Sensor O Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0CB7 | Hybrid/EV Battery Temperature Sensor P Circuit | Fuel Metering | Medium |
| P0CB8 | Hybrid/EV Battery Temperature Sensor P Circuit Range/Performance | Fuel Metering | Medium |
| P0CB9 | Hybrid/EV Battery Temperature Sensor P Circuit Low | Fuel Metering | Medium |
| P0CBA | Hybrid/EV Battery Temperature Sensor P Circuit High | Fuel Metering | Medium |
| P0CBB | Hybrid/EV Battery Temperature Sensor P Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0CBC | Drive Motor A Coolant Temperature Sensor Circuit | Fuel Metering | Medium |
| P0CBD | Drive Motor A Coolant Temperature Sensor Circuit Range/Performance | Fuel Metering | Medium |
| P0CBE | Drive Motor A Coolant Temperature Sensor Circuit Low | Fuel Metering | Medium |
| P0CBF | Drive Motor A Coolant Temperature Sensor Circuit High | Fuel Metering | Medium |
| P0CC0 | Drive Motor A Coolant Temperature Sensor Circuit Intermittent | Fuel Metering | Medium |
| P0CC1 | Drive Motor A Coolant Pump Control Circuit/Open | Fuel Metering | Medium |
| P0CC2 | Drive Motor A Coolant Pump Control Circuit Range/Performance | Fuel Metering | Medium |
| P0CC3 | Drive Motor A Coolant Pump Control Circuit Low | Fuel Metering | Medium |
| P0CC4 | Drive Motor A Coolant Pump Control Circuit High | Fuel Metering | Medium |
| P0CC5 | 14 Volt Power Module Current Sensor A/B Correlation | Fuel Metering | Medium |
| P0CC6 | Charge Port Door A Open Request Switch Wake-Up Circuit | Fuel Metering | Medium |
| P0CC7 | Charge Port Door A Open Request Switch Circuit | Fuel Metering | Medium |
| P0CC8 | Charge Port Door A Open Request Switch Circuit Performance | Fuel Metering | Medium |
| P0CC9 | Charge Port Door A Open Request Switch Circuit Low | Fuel Metering | Medium |
| P0CCA | Charge Port Door A Open Request Switch Circuit High | Fuel Metering | Medium |
| P0CCB | Charge Port Door A Open Request Switch Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0CCC | Charge Port Door A Position Sensor Circuit | Fuel Metering | Medium |
| P0CCD | Charge Port Door A Position Sensor Circuit 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.