Fuel System Codes
5,039 OBD-II diagnostic trouble codes in this category.
Showing page 40 of 51 (5,039 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P274E | Transmission Fluid Temperature Sensor C Circuit Intermittent | Fuel Injection | Medium |
| P275A | Transmission Fluid Temperature Sensor D Circuit | Fuel Injection | Medium |
| P275B | Transmission Fluid Temperature Sensor D Circuit Range/Performance | Fuel Injection | Medium |
| P275C | Transmission Fluid Temperature Sensor D Circuit Low | Fuel Injection | Medium |
| P275D | Transmission Fluid Temperature Sensor D Circuit High | Fuel Injection | Medium |
| P275E | Transmission Fluid Temperature Sensor D Circuit Intermittent | Fuel Injection | Medium |
| P276A | Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit/Open | Fuel Injection | Medium |
| P276B | Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit Low | Fuel Injection | Medium |
| P276C | Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High | Fuel Injection | Medium |
| P276D | Electric/Auxiliary Transmission Fluid Pump B Motor Current | Fuel Injection | Medium |
| P276E | Electric/Auxiliary Transmission Fluid Pump B Motor Current Low | Fuel Injection | Medium |
| P276F | Electric/Auxiliary Transmission Fluid Pump B Motor Current High | Fuel Injection | Medium |
| P277A | Electric/Auxiliary Transmission Fluid Pump B Hydraulic Leakage | Fuel Injection | Medium |
| P277B | Electric/Auxiliary Transmission Fluid Pump B Driver Circuit Performance | Fuel Injection | Medium |
| P277C | Electric/Auxiliary Transmission Fluid Pump B Motor Stalled | Fuel Injection | Medium |
| P277E | Clutch A Unexpected Mechanical Gear Disengagement | Fuel Injection | Medium |
| P277F | Clutch B Unexpected Mechanical Gear Disengagement | Fuel Injection | Medium |
| P278A | Kick Down Switch Circuit | Fuel Injection | Medium |
| P278B | Kick Down Switch Circuit Range/Performance | Fuel Injection | Medium |
| P278C | Kick Down Switch Circuit Low | Fuel Injection | Medium |
| P278D | Kick Down Switch Circuit High | Fuel Injection | Medium |
| P278E | Kick Down Switch Circuit Intermittent/Erratic | Fuel Injection | Medium |
| P278F | Clutch B Adaptive Learning at Limit | Fuel Injection | Medium |
| P279A | Transfer Case Gear High Incorrect Ratio | Fuel Injection | Medium |
| P279B | Transfer Case Gear Low Incorrect Ratio | Fuel Injection | Medium |
| P279C | Transfer Case Gear Neutral Incorrect Ratio | Fuel Injection | Medium |
| P279D | Four Wheel Drive (4WD) Range Signal Circuit | Fuel Injection | Medium |
| P279E | Four Wheel Drive (4WD) Range Signal Circuit Range/Performance | Fuel Injection | Medium |
| P279F | Four Wheel Drive (4WD) Range Signal Circuit Low | Fuel Injection | Medium |
| P27A0 | Four Wheel Drive (4WD) Range Signal Circuit High | Fuel Metering | Medium |
| P27A1 | Electric/Auxiliary Transmission Fluid Pump A Stuck On | Fuel Metering | Medium |
| P27A2 | Electric/Auxiliary Transmission Fluid Pump B Control Circuit/Open | Fuel Metering | Medium |
| P27A3 | Electric/Auxiliary Transmission Fluid Pump B Performance/Stuck Off | Fuel Metering | Medium |
| P27A4 | Electric/Auxiliary Transmission Fluid Pump B Control Circuit Low | Fuel Metering | Medium |
| P27A5 | Electric/Auxiliary Transmission Fluid Pump B Control Circuit High | Fuel Metering | Medium |
| P27A6 | Electric/Auxiliary Transmission Fluid Pump B Stuck On | Fuel Metering | Medium |
| P27A7 | Pressure Control Solenoid A Data Incompatible | Fuel Metering | Medium |
| P27A8 | Pressure Control Solenoid B Data Incompatible | Fuel Metering | Medium |
| P27A9 | Pressure Control Solenoid C Data Incompatible | Fuel Metering | Medium |
| P27AA | Pressure Control Solenoid D Data Incompatible | Fuel Metering | Medium |
| P27AB | Pressure Control Solenoid E Data Incompatible | Fuel Metering | Medium |
| P27AC | Pressure Control Solenoid F Data Incompatible | Fuel Metering | Medium |
| P27AD | Pressure Control Solenoid G Data Incompatible | Fuel Metering | Medium |
| P27AE | Pressure Control Solenoid H Data Incompatible | Fuel Metering | Medium |
| P27AF | Pressure Control Solenoid J Data Incompatible | Fuel Metering | Medium |
| P27B0 | Pressure Control Solenoid K Data Incompatible | Fuel Metering | Medium |
| P27B1 | Internal Control Module Transmission Range Select Performance | Fuel Metering | Medium |
| P27B2 | Internal Control Module Transmission Range Control Performance | Fuel Metering | Medium |
| P27B3 | Internal Control Module Transmission Gear Select Performance | Fuel Metering | Medium |
| P27B4 | Internal Control Module Transmission Gear Direction Control Performance | Fuel Metering | Medium |
| P27B5 | Internal Control Module Transmission Gear Ratio Control Performance | Fuel Metering | Medium |
| P27B6 | Internal Control Module Transmission Speed Sensor Performance | Fuel Metering | Medium |
| P27B9 | Pressure Control Solenoid N Performance/Stuck Off | Fuel Metering | Medium |
| P27BA | Pressure Control Solenoid N Stuck On | Fuel Metering | Medium |
| P27BB | Pressure Control Solenoid N Electrical | Fuel Metering | Medium |
| P27BC | Pressure Control Solenoid N Intermittent | Fuel Metering | Medium |
| P27BD | Pressure Control Solenoid N Control Circuit/Open | Fuel Metering | Medium |
| P27BE | Pressure Control Solenoid N Control Circuit Range/Performance | Fuel Metering | Medium |
| P27BF | Pressure Control Solenoid N Control Circuit Low | Fuel Metering | Medium |
| P27C0 | Pressure Control Solenoid N Control Circuit High | Fuel Metering | Medium |
| P27C1 | Pressure Control Solenoid P Performance/Stuck Off | Fuel Metering | Medium |
| P27C2 | Pressure Control Solenoid P Stuck On | Fuel Metering | Medium |
| P27C3 | Pressure Control Solenoid P Electrical | Fuel Metering | Medium |
| P27C4 | Pressure Control Solenoid P Intermittent | Fuel Metering | Medium |
| P27C5 | Pressure Control Solenoid P Control Circuit/Open | Fuel Metering | Medium |
| P27C6 | Pressure Control Solenoid P Control Circuit Range/Performance | Fuel Metering | Medium |
| P27C7 | Pressure Control Solenoid P Control Circuit Low | Fuel Metering | Medium |
| P27C8 | Pressure Control Solenoid P Control Circuit High | Fuel Metering | Medium |
| P27C9 | Pressure Control Solenoid R Performance/Stuck Off | Fuel Metering | Medium |
| P27CA | Pressure Control Solenoid R Stuck On | Fuel Metering | Medium |
| P27CB | Pressure Control Solenoid R Electrical | Fuel Metering | Medium |
| P27CC | Pressure Control Solenoid R Intermittent | Fuel Metering | Medium |
| P27CD | Pressure Control Solenoid R Control Circuit/Open | Fuel Metering | Medium |
| P27CE | Pressure Control Solenoid R Control Circuit Range/Performance | Fuel Metering | Medium |
| P27CF | Pressure Control Solenoid R Control Circuit Low | Fuel Metering | Medium |
| P27D0 | Pressure Control Solenoid R Control Circuit High | Fuel Metering | Medium |
| P27D1 | Pressure Control Solenoid S Performance/Stuck Off | Fuel Metering | Medium |
| P27D2 | Pressure Control Solenoid S Stuck On | Fuel Metering | Medium |
| P27D3 | Pressure Control Solenoid S Electrical | Fuel Metering | Medium |
| P27D4 | Pressure Control Solenoid S Intermittent | Fuel Metering | Medium |
| P27D5 | Pressure Control Solenoid S” Control Circuit/Open | Fuel Metering | Medium |
| P27D6 | Pressure Control Solenoid S Control Circuit Range/Performance | Fuel Metering | Medium |
| P27D7 | Pressure Control Solenoid S Control Circuit Low | Fuel Metering | Medium |
| P27D8 | Pressure Control Solenoid S Control Circuit High | Fuel Metering | Medium |
| P27D9 | Pressure Control Solenoid T Performance/Stuck Off | Fuel Metering | Medium |
| P27DA | Pressure Control Solenoid T Stuck On | Fuel Metering | Medium |
| P27DB | Pressure Control Solenoid T Electrical | Fuel Metering | Medium |
| P27DC | Pressure Control Solenoid T Intermittent | Fuel Metering | Medium |
| P27DD | Pressure Control Solenoid T Control Circuit/Open | Fuel Metering | Medium |
| P27DE | Pressure Control Solenoid T Control Circuit Range/Performance | Fuel Metering | Medium |
| P27DF | Pressure Control Solenoid T Control Circuit Low | Fuel Metering | Medium |
| P27E0 | Pressure Control Solenoid T Control Circuit High | Fuel Metering | Medium |
| P27E1 | Electric/Auxiliary Transmission Fluid Pump A Pressure Too Low | Fuel Injection | Medium |
| P27EA | Transmission Range Control B Circuit High | Fuel Metering | Medium |
| P27EB | Transmission Range Control A Position Sensor/Switch Circuit/Open | Fuel Metering | Medium |
| P27EC | Transmission Range Control A Position Sensor/Switch Circuit Range/Performance | Fuel Metering | Medium |
| P27ED | Transmission Range Control A Position Sensor/Switch Circuit Low | Fuel Metering | Medium |
| P27EE | Transmission Range Control A Position Sensor/Switch Circuit High | Fuel Metering | Medium |
| P27EF | Transmission Range Control B Position Sensor/Switch Circuit/Open | Fuel Metering | Medium |
| P27F0 | Transmission Range Control B Position Sensor/Switch Circuit Range/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.