Fuel System Codes
5,039 OBD-II diagnostic trouble codes in this category.
Showing page 23 of 51 (5,039 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P0D96 | Battery Charger Coupler Unlock Control Circuit Low | Fuel Metering | Medium |
| P0D97 | Battery Charger Coupler Unlock Control Circuit High | Fuel Metering | Medium |
| P0D98 | Battery Charger Coupler Unlock Control Circuit Performance | Fuel Metering | Medium |
| P0D99 | Battery Charger Coupler Temperature Sensor A Circuit | Fuel Metering | Medium |
| P0D9A | Battery Charger Coupler Temperature Sensor A Circuit Range/Performance | Fuel Metering | Medium |
| P0D9B | Battery Charger Coupler Temperature Sensor A Circuit Low | Fuel Metering | Medium |
| P0D9C | Battery Charger Coupler Temperature Sensor A Circuit High | Fuel Metering | Medium |
| P0D9D | Battery Charger Coupler Temperature Sensor A Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0D9E | Battery Charger A Coupler Lock Position Sensor Circuit | Fuel Metering | Medium |
| P0D9F | Battery Charger A Coupler Lock Position Sensor Circuit Range/Performance | Fuel Metering | Medium |
| P0DA0 | Battery Charger A Coupler Lock Position Sensor Circuit Low | Fuel Metering | Medium |
| P0DA1 | Battery Charger A Coupler Lock Position Sensor Circuit High | Fuel Metering | Medium |
| P0DA2 | Battery Charger A Coupler Lock Position Sensor Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0DA3 | Drive Motor B Inverter Voltage Sensor A” Circuit | Fuel Metering | Medium |
| P0DA4 | Drive Motor B Inverter Voltage Sensor A” Circuit Range/Performance | Fuel Metering | Medium |
| P0DA5 | Drive Motor B Inverter Voltage Sensor A” Circuit Low | Fuel Metering | Medium |
| P0DA6 | Drive Motor B Inverter Voltage Sensor A” Circuit High | Fuel Metering | Medium |
| P0DA7 | Drive Motor B Inverter Voltage Sensor A” Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0DA8 | Hybrid/EV Battery Voltage/Drive Motor A Inverter Voltage Correlation | Fuel Metering | Medium |
| P0DA9 | Hybrid/EV Battery Voltage/Drive Motor B Inverter Voltage Correlation | Fuel Metering | Medium |
| P0DAA | Battery Charging System Isolation Fault | Fuel Metering | Medium |
| P0DAB | Hybrid/EV Battery Cell Balancing Performance | Fuel Metering | Medium |
| P0DAC | Hybrid/EV Battery Cell Balancing Circuit A | Fuel Metering | Medium |
| P0DAD | Hybrid/EV Battery Cell Balancing Circuit A Stuck On | Fuel Metering | Medium |
| P0DAE | Hybrid/EV Battery Cell Balancing Circuit A Stuck Off | Fuel Metering | Medium |
| P0DAF | Hybrid/EV Battery Cell Balancing Circuit A Range/Performance | Fuel Metering | Medium |
| P0DB0 | Hybrid/EV Battery Cell Balancing Circuit B | Fuel Metering | Medium |
| P0DB1 | Hybrid/EV Battery Cell Balancing Circuit B Stuck On | Fuel Metering | Medium |
| P0DB2 | Hybrid/EV Battery Cell Balancing Circuit B Stuck Off | Fuel Metering | Medium |
| P0DB3 | Hybrid/EV Battery Cell Balancing Circuit B Range/Performance | Fuel Metering | Medium |
| P0DB4 | Hybrid/EV Battery Cell Balancing Circuit C | Fuel Metering | Medium |
| P0DB5 | Hybrid/EV Battery Cell Balancing Circuit C Stuck On | Fuel Metering | Medium |
| P0DB6 | Hybrid/EV Battery Cell Balancing Circuit C Stuck Off | Fuel Metering | Medium |
| P0DB7 | Hybrid/EV Battery Cell Balancing Circuit C Range/Performance | Fuel Metering | Medium |
| P0DB8 | Hybrid/EV Battery Cell Balancing Circuit D | Fuel Metering | Medium |
| P0DB9 | Hybrid/EV Battery Cell Balancing Circuit D Stuck On | Fuel Metering | Medium |
| P0DBA | Hybrid/EV Battery Cell Balancing Circuit D Stuck Off | Fuel Metering | Medium |
| P0DBB | Hybrid/EV Battery Cell Balancing Circuit D Range/Performance | Fuel Metering | Medium |
| P0DBC | Hybrid/EV Battery Cell Balancing Circuit E | Fuel Metering | Medium |
| P0DBD | Hybrid/EV Battery Cell Balancing Circuit E Stuck On | Fuel Metering | Medium |
| P0DBE | Hybrid/EV Battery Cell Balancing Circuit E Stuck Off | Fuel Metering | Medium |
| P0DBF | Hybrid/EV Battery Cell Balancing Circuit E Range/Performance | Fuel Metering | Medium |
| P0DC0 | Hybrid/EV Battery Cell Balancing Circuit F | Fuel Metering | Medium |
| P0DC1 | Hybrid/EV Battery Cell Balancing Circuit F Stuck On | Fuel Metering | Medium |
| P0DC2 | Hybrid/EV Battery Cell Balancing Circuit F Stuck Off | Fuel Metering | Medium |
| P0DC3 | Hybrid/EV Battery Cell Balancing Circuit F Range/Performance | Fuel Metering | Medium |
| P0DC4 | Hybrid/EV Battery Cell Balancing Circuit G | Fuel Metering | Medium |
| P0DC5 | Hybrid/EV Battery Cell Balancing Circuit G Stuck On | Fuel Metering | Medium |
| P0DC6 | Hybrid/EV Battery Cell Balancing Circuit G Stuck Off | Fuel Metering | Medium |
| P0DC7 | Hybrid/EV Battery Cell Balancing Circuit G Range/Performance | Fuel Metering | Medium |
| P0DC8 | Hybrid/EV Battery Cell Balancing Circuit H | Fuel Metering | Medium |
| P0DC9 | Hybrid/EV Battery Cell Balancing Circuit H Stuck On | Fuel Metering | Medium |
| P0DCA | Hybrid/EV Battery Cell Balancing Circuit H Stuck Off | Fuel Metering | Medium |
| P0DCB | Hybrid/EV Battery Cell Balancing Circuit H Range/Performance | Fuel Metering | Medium |
| P0DCC | Hybrid/EV Battery Cell Balancing Circuit I | Fuel Metering | Medium |
| P0DCD | Hybrid/EV Battery Cell Balancing Circuit I Stuck On | Fuel Metering | Medium |
| P0DCE | Hybrid/EV Battery Cell Balancing Circuit I Stuck Off | Fuel Metering | Medium |
| P0DCF | Hybrid/EV Battery Cell Balancing Circuit I Range/Performance | Fuel Metering | Medium |
| P0DD0 | Hybrid/EV Battery Cell Balancing Circuit J | Fuel Metering | Medium |
| P0DD1 | Hybrid/EV Battery Cell Balancing Circuit J Stuck On | Fuel Metering | Medium |
| P0DD2 | Hybrid/EV Battery Cell Balancing Circuit J Stuck Off | Fuel Metering | Medium |
| P0DD3 | Hybrid/EV Battery Cell Balancing Circuit J Range/Performance | Fuel Metering | Medium |
| P0DD4 | Hybrid/EV Battery Cell Balancing Circuit K | Fuel Metering | Medium |
| P0DD5 | Hybrid/EV Battery Cell Balancing Circuit K Stuck On | Fuel Metering | Medium |
| P0DD6 | Hybrid/EV Battery Cell Balancing Circuit K Stuck Off | Fuel Metering | Medium |
| P0DD7 | Hybrid/EV Battery Cell Balancing Circuit K Range/Performance | Fuel Metering | Medium |
| P0DD8 | Hybrid/EV Battery Cell Balancing Circuit L | Fuel Metering | Medium |
| P0DD9 | Hybrid/EV Battery Cell Balancing Circuit L Stuck On | Fuel Metering | Medium |
| P0DDA | Hybrid/EV Battery Cell Balancing Circuit L Stuck Off | Fuel Metering | Medium |
| P0DDB | Hybrid/EV Battery Cell Balancing Circuit L Range/Performance | Fuel Metering | Medium |
| P0DDC | Hybrid/EV Battery Cell Balancing Circuit M | Fuel Metering | Medium |
| P0DDD | Hybrid/EV Battery Cell Balancing Circuit M Stuck On | Fuel Metering | Medium |
| P0DDE | Hybrid/EV Battery Cell Balancing Circuit M Stuck Off | Fuel Metering | Medium |
| P0DDF | Hybrid/EV Battery Cell Balancing Circuit M Range/Performance | Fuel Metering | Medium |
| P0DE0 | Hybrid/EV Battery Cell Balancing Circuit N | Fuel Metering | Medium |
| P0DE1 | Hybrid/EV Battery Cell Balancing Circuit N Stuck On | Fuel Metering | Medium |
| P0DE2 | Hybrid/EV Battery Cell Balancing Circuit N Stuck Off | Fuel Metering | Medium |
| P0DE3 | Hybrid/EV Battery Cell Balancing Circuit N Range/Performance | Fuel Metering | Medium |
| P0DE4 | Electric/Auxiliary Transmission Fluid Pump A Motor Over Temperature | Fuel Metering | Medium |
| P0DE5 | Charge Status Indicator B Control Circuit/Open | Fuel Metering | Medium |
| P0DE6 | Hybrid/EV Battery Pack Cell Voltage Low | Fuel Metering | Medium |
| P0DE7 | Hybrid/EV Battery Pack Cell Voltage High | Fuel Metering | Medium |
| P0DE8 | Hybrid/EV Battery Pack Coolant Control Valve C Control Circuit/Open | Fuel Metering | Medium |
| P0DE9 | Hybrid/EV Battery Pack Coolant Control Valve C Performance/Stuck Off | Fuel Metering | Medium |
| P0DEA | Hybrid/EV Battery Pack Coolant Control Valve C Stuck On | Fuel Metering | Medium |
| P0DEB | Hybrid/EV Battery Pack Coolant Control Valve C Control Circuit Low | Fuel Metering | Medium |
| P0DEC | Hybrid/EV Battery Pack Coolant Control Valve C Control Circuit High | Fuel Metering | Medium |
| P0DED | Pedestrian Alert Control Module Circuit/Open | Fuel Metering | Medium |
| P0DEE | Pedestrian Alert Control Module Circuit Low | Fuel Metering | Medium |
| P0DEF | Pedestrian Alert Control Module Circuit High | Fuel Metering | Medium |
| P0DF0 | Generator Inverter Temperature Sensor B Circuit | Fuel Metering | Medium |
| P0DF1 | Generator Inverter Temperature Sensor B Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0DF2 | Generator Inverter Temperature Sensor C Circuit | Fuel Metering | Medium |
| P0DF3 | Generator Inverter Temperature Sensor C Circuit Intermittent/Erratic | Fuel Metering | Medium |
| P0DF4 | Generator Inverter Temperature Sensor B Circuit Range/Performance | Fuel Metering | Medium |
| P0DF5 | Generator Inverter Temperature Sensor B Circuit Low | Fuel Metering | Medium |
| P0DF6 | Generator Inverter Temperature Sensor B Circuit High | Fuel Metering | Medium |
| P0DF7 | Generator Inverter Temperature Sensor C Circuit Range/Performance | Fuel Metering | Medium |
| P0DF8 | Generator Inverter Temperature Sensor C Circuit Low | Fuel Metering | Medium |
| P0DF9 | Generator Inverter Temperature Sensor C Circuit High | 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.