Fuel System Codes
5,039 OBD-II diagnostic trouble codes in this category.
Showing page 17 of 51 (5,039 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P0B3E | Hybrid/EV Battery Voltage Sense A Circuit High | Fuel Metering | Medium |
| P0B3F | Hybrid/EV Battery Voltage Sense A Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B40 | Hybrid/EV Battery Voltage Sense B Circuit | Fuel Metering | Medium |
| P0B41 | Hybrid/EV Battery Voltage Sense B Circuit Range/Performance | Fuel Metering | Medium |
| P0B42 | Hybrid/EV Battery Voltage Sense B Circuit Low | Fuel Metering | Medium |
| P0B43 | Hybrid/EV Battery Voltage Sense B Circuit High | Fuel Metering | Medium |
| P0B44 | Hybrid/EV Battery Voltage Sense B Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B45 | Hybrid/EV Battery Voltage Sense C Circuit | Fuel Metering | Medium |
| P0B46 | Hybrid/EV Battery Voltage Sense C Circuit Range/Performance | Fuel Metering | Medium |
| P0B47 | Hybrid/EV Battery Voltage Sense C Circuit Low | Fuel Metering | Medium |
| P0B48 | Hybrid/EV Battery Voltage Sense C Circuit High | Fuel Metering | Medium |
| P0B49 | Hybrid/EV Battery Voltage Sense C Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B4A | Hybrid/EV Battery Voltage Sense D Circuit | Fuel Metering | Medium |
| P0B4B | Hybrid/EV Battery Voltage Sense D Circuit Range/Performance | Fuel Metering | Medium |
| P0B4C | Hybrid/EV Battery Voltage Sense D Circuit Low | Fuel Metering | Medium |
| P0B4D | Hybrid/EV Battery Voltage Sense D Circuit High | Fuel Metering | Medium |
| P0B4E | Hybrid/EV Battery Voltage Sense D Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B4F | Hybrid/EV Battery Voltage Sense E Circuit | Fuel Metering | Medium |
| P0B50 | Hybrid/EV Battery Voltage Sense E Circuit Range/Performance | Fuel Metering | Medium |
| P0B51 | Hybrid/EV Battery Voltage Sense E Circuit Low | Fuel Metering | Medium |
| P0B52 | Hybrid/EV Battery Voltage Sense E Circuit High | Fuel Metering | Medium |
| P0B53 | Hybrid/EV Battery Voltage Sense E Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B54 | Hybrid/EV Battery Voltage Sense F Circuit | Fuel Metering | Medium |
| P0B55 | Hybrid/EV Battery Voltage Sense F Circuit Range/Performance | Fuel Metering | Medium |
| P0B56 | Hybrid/EV Battery Voltage Sense F Circuit Low | Fuel Metering | Medium |
| P0B57 | Hybrid/EV Battery Voltage Sense F Circuit High | Fuel Metering | Medium |
| P0B58 | Hybrid/EV Battery Voltage Sense F Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B59 | Hybrid/EV Battery Voltage Sense G Circuit | Fuel Metering | Medium |
| P0B5A | Hybrid/EV Battery Voltage Sense G Circuit Range/Performance | Fuel Metering | Medium |
| P0B5B | Hybrid/EV Battery Voltage Sense G Circuit Low | Fuel Metering | Medium |
| P0B5C | Hybrid/EV Battery Voltage Sense G Circuit High | Fuel Metering | Medium |
| P0B5D | Hybrid/EV Battery Voltage Sense G Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B5E | Hybrid/EV Battery Voltage Sense H Circuit | Fuel Metering | Medium |
| P0B5F | Hybrid/EV Battery Voltage Sense H Circuit Range/Performance | Fuel Metering | Medium |
| P0B60 | Hybrid/EV Battery Voltage Sense H Circuit Low | Fuel Metering | Medium |
| P0B61 | Hybrid/EV Battery Voltage Sense H Circuit High | Fuel Metering | Medium |
| P0B62 | Hybrid/EV Battery Voltage Sense H Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B63 | Hybrid/EV Battery Voltage Sense I Circuit | Fuel Metering | Medium |
| P0B64 | Hybrid/EV Battery Voltage Sense I Circuit Range/Performance | Fuel Metering | Medium |
| P0B65 | Hybrid/EV Battery Voltage Sense I Circuit Low | Fuel Metering | Medium |
| P0B66 | Hybrid/EV Battery Voltage Sense I Circuit High | Fuel Metering | Medium |
| P0B67 | Hybrid/EV Battery Voltage Sense I Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B68 | Hybrid/EV Battery Voltage Sense J Circuit | Fuel Metering | Medium |
| P0B69 | Hybrid/EV Battery Voltage Sense J Circuit Range/Performance | Fuel Metering | Medium |
| P0B6A | Hybrid/EV Battery Voltage Sense J Circuit Low | Fuel Metering | Medium |
| P0B6B | Hybrid/EV Battery Voltage Sense J Circuit High | Fuel Metering | Medium |
| P0B6C | Hybrid/EV Battery Voltage Sense J Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B6D | Hybrid/EV Battery Voltage Sense K Circuit | Fuel Metering | Medium |
| P0B6E | Hybrid/EV Battery Voltage Sense K Circuit Range/Performance | Fuel Metering | Medium |
| P0B6F | Hybrid/EV Battery Voltage Sense K Circuit Low | Fuel Metering | Medium |
| P0B70 | Hybrid/EV Battery Voltage Sense K Circuit High | Fuel Metering | Medium |
| P0B71 | Hybrid/EV Battery Voltage Sense K Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B72 | Hybrid/EV Battery Voltage Sense L Circuit | Fuel Metering | Medium |
| P0B73 | Hybrid/EV Battery Voltage Sense L Circuit Range/Performance | Fuel Metering | Medium |
| P0B74 | Hybrid/EV Battery Voltage Sense L Circuit Low | Fuel Metering | Medium |
| P0B75 | Hybrid/EV Battery Voltage Sense L Circuit High | Fuel Metering | Medium |
| P0B76 | Hybrid/EV Battery Voltage Sense L Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B77 | Hybrid/EV Battery Voltage Sense M Circuit | Fuel Metering | Medium |
| P0B78 | Hybrid/EV Battery Voltage Sense M Circuit Range/Performance | Fuel Metering | Medium |
| P0B79 | Hybrid/EV Battery Voltage Sense M Circuit Low | Fuel Metering | Medium |
| P0B7A | Hybrid/EV Battery Voltage Sense M Circuit High | Fuel Metering | Medium |
| P0B7B | Hybrid/EV Battery Voltage Sense M Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B7C | Hybrid/EV Battery Voltage Sense N Circuit | Fuel Metering | Medium |
| P0B7D | Hybrid/EV Battery Voltage Sense N Circuit Range/Performance | Fuel Metering | Medium |
| P0B7E | Hybrid/EV Battery Voltage Sense N Circuit Low | Fuel Metering | Medium |
| P0B7F | Hybrid/EV Battery Voltage Sense N Circuit High | Fuel Metering | Medium |
| P0B80 | Hybrid/EV Battery Voltage Sense N Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B81 | Hybrid/EV Battery Voltage Sense O Circuit | Fuel Metering | Medium |
| P0B82 | Hybrid/EV Battery Voltage Sense O Circuit Range/Performance | Fuel Metering | Medium |
| P0B83 | Hybrid/EV Battery Voltage Sense O Circuit Low | Fuel Metering | Medium |
| P0B84 | Hybrid/EV Battery Voltage Sense O Circuit High | Fuel Metering | Medium |
| P0B85 | Hybrid/EV Battery Voltage Sense O Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B86 | Hybrid/EV Battery Voltage Sense P Circuit | Fuel Metering | Medium |
| P0B87 | Hybrid/EV Battery Voltage Sense P Circuit Range/Performance | Fuel Metering | Medium |
| P0B88 | Hybrid/EV Battery Voltage Sense P Circuit Low | Fuel Metering | Medium |
| P0B89 | Hybrid/EV Battery Voltage Sense P Circuit High | Fuel Metering | Medium |
| P0B8A | Hybrid/EV Battery Voltage Sense P Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B8B | Hybrid/EV Battery Voltage Sense Q Circuit | Fuel Metering | Medium |
| P0B8C | Hybrid/EV Battery Voltage Sense Q Circuit Range/Performance | Fuel Metering | Medium |
| P0B8D | Hybrid/EV Battery Voltage Sense Q Circuit Low | Fuel Metering | Medium |
| P0B8E | Hybrid/EV Battery Voltage Sense Q Circuit High | Fuel Metering | Medium |
| P0B8F | Hybrid/EV Battery Voltage Sense Q Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B90 | Hybrid/EV Battery Voltage Sense R Circuit | Fuel Metering | Medium |
| P0B91 | Hybrid/EV Battery Voltage Sense R Circuit Range/Performance | Fuel Metering | Medium |
| P0B92 | Hybrid/EV Battery Voltage Sense R Circuit Low | Fuel Metering | Medium |
| P0B93 | Hybrid/EV Battery Voltage Sense R Circuit High | Fuel Metering | Medium |
| P0B94 | Hybrid/EV Battery Voltage Sense R Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B95 | Hybrid/EV Battery Voltage Sense S Circuit | Fuel Metering | Medium |
| P0B96 | Hybrid/EV Battery Voltage Sense S Circuit Range/Performance | Fuel Metering | Medium |
| P0B97 | Hybrid/EV Battery Voltage Sense S Circuit Low | Fuel Metering | Medium |
| P0B98 | Hybrid/EV Battery Voltage Sense S Circuit High | Fuel Metering | Medium |
| P0B99 | Hybrid/EV Battery Voltage Sense S Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B9A | Hybrid/EV Battery Voltage Sense T Circuit | Fuel Metering | Medium |
| P0B9B | Hybrid/EV Battery Voltage Sense T Circuit Range/Performance | Fuel Metering | Medium |
| P0B9C | Hybrid/EV Battery Voltage Sense T Circuit Low | Fuel Metering | Medium |
| P0B9D | Hybrid/EV Battery Voltage Sense T Circuit High | Fuel Metering | Medium |
| P0B9E | Hybrid/EV Battery Voltage Sense T Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0B9F | Hybrid/EV Battery Voltage Sense U Circuit | Fuel Metering | Medium |
| P0BA0 | Hybrid/EV Battery Voltage Sense U Circuit Range/Performance | Fuel Metering | Medium |
| P0BA1 | Hybrid/EV Battery Voltage Sense U Circuit Low | 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.