OBD2 P Code Lookup
Search-friendly pages for common check engine codes. Start with the code, then use the AI diagnostic to add symptoms, mileage, vehicle details, and driving conditions before you book a repair.
P0300Stop driving if it runs poorly
P0300 Random/Multiple Cylinder MisfireP0300 is a generic OBD2 powertrain code for random or multiple cylinder misfire. Unlike P0301 through P0308, it does not point to one specific cylinder, so the cause can be ignition, fuel, air, sensor, or mechanical.P0301Stop driving if it runs poorly
P0301 Cylinder 1 MisfireP0301 means the engine computer detected repeated misfires on cylinder 1. Because it names one cylinder, diagnosis usually starts by comparing cylinder 1 ignition, fuel, and compression against the other cylinders.P0302Stop driving if it runs poorly
P0302 Cylinder 2 MisfireP0302 is a cylinder-specific misfire code. The computer sees cylinder 2 slowing down compared with the rest of the engine.P0303Stop driving if it runs poorly
P0303 Cylinder 3 MisfireP0303 identifies a misfire on cylinder 3. Diagnosis should prove whether the fault follows the coil, plug, injector, or stays with the cylinder.P0304Stop driving if it runs poorly
P0304 Cylinder 4 MisfireP0304 means the powertrain computer detected a misfire on cylinder 4. It is a symptom code, not proof that one specific part failed.P0171Diagnose soon
P0171 System Too Lean Bank 1P0171 means the engine computer is adding more fuel than normal on bank 1 because it sees too much air or not enough fuel.P0174Diagnose soon
P0174 System Too Lean Bank 2P0174 is the bank 2 version of a lean-condition code. On V-style engines, bank 2 is the side opposite bank 1.P0420Diagnose soon
P0420 Catalyst Efficiency Bank 1P0420 means the downstream oxygen sensor pattern suggests the bank 1 catalytic converter is not storing oxygen properly.P0430Diagnose soon
P0430 Catalyst Efficiency Bank 2P0430 is the bank 2 catalyst-efficiency code. It usually appears on V6 or V8 engines with separate bank 1 and bank 2 converters.P0442Usually not urgent
P0442 EVAP Small LeakP0442 means the EVAP system could not hold pressure or vacuum during a leak test, but the leak is small.P0455Usually not urgent
P0455 EVAP Large LeakP0455 means the EVAP system failed a leak check badly enough that the computer sees a large leak or no pressure/vacuum change.P0456Usually not urgent
P0456 EVAP Very Small LeakP0456 is a very small EVAP leak code. The leak may be too small to see without smoke testing.P0128Diagnose soon
P0128 Coolant ThermostatP0128 means the engine warmed up slower than expected or stayed cooler than the computer expected.P0101Diagnose soon
P0101 MAF Range/PerformanceP0101 means the mass air flow reading is outside the expected range for engine speed and load.P0135Diagnose soon
P0135 O2 Sensor Heater Bank 1 Sensor 1P0135 points to the heater circuit for the bank 1 sensor 1 oxygen sensor. The heater helps the sensor reach operating temperature quickly.P0141Diagnose soon
P0141 O2 Sensor Heater Bank 1 Sensor 2P0141 points to the heater circuit for the downstream oxygen sensor after the catalytic converter on bank 1.P0507Diagnose soon
P0507 Idle RPM Higher Than ExpectedP0507 means the engine is idling above the target RPM even though the computer is trying to control idle speed.P0008Stop driving if it runs poorly
P0008 Engine Position System Performance Bank 1P0008 is a generic OBD2 powertrain diagnostic trouble code for engine position system performance bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0009Stop driving if it runs poorly
P0009 Engine Position System Performance Bank 2P0009 is a generic OBD2 powertrain diagnostic trouble code for engine position system performance bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0010Diagnose soon
P0010 A Camshaft Position Actuator Circuit Bank 1P0010 is a generic OBD2 powertrain diagnostic trouble code for a camshaft position actuator circuit bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0011Stop driving if it runs poorly
P0011 A Camshaft Position Timing Over-Advanced Bank 1P0011 is a generic OBD2 powertrain diagnostic trouble code for a camshaft position timing over-advanced bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0012Stop driving if it runs poorly
P0012 A Camshaft Position Timing Over-Retarded Bank 1P0012 is a generic OBD2 powertrain diagnostic trouble code for a camshaft position timing over-retarded bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0013Diagnose soon
P0013 B Camshaft Position Actuator Circuit Bank 1P0013 is a generic OBD2 powertrain diagnostic trouble code for b camshaft position actuator circuit bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0014Stop driving if it runs poorly
P0014 B Camshaft Position Timing Over-Advanced Bank 1P0014 is a generic OBD2 powertrain diagnostic trouble code for b camshaft position timing over-advanced bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0015Stop driving if it runs poorly
P0015 B Camshaft Position Timing Over-Retarded Bank 1P0015 is a generic OBD2 powertrain diagnostic trouble code for b camshaft position timing over-retarded bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0016Stop driving if it runs poorly
P0016 Crankshaft/Camshaft Position Correlation Bank 1 Sensor AP0016 is a generic OBD2 powertrain diagnostic trouble code for crankshaft/camshaft position correlation bank 1 sensor a. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0017Stop driving if it runs poorly
P0017 Crankshaft/Camshaft Position Correlation Bank 1 Sensor BP0017 is a generic OBD2 powertrain diagnostic trouble code for crankshaft/camshaft position correlation bank 1 sensor b. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0018Stop driving if it runs poorly
P0018 Crankshaft/Camshaft Position Correlation Bank 2 Sensor AP0018 is a generic OBD2 powertrain diagnostic trouble code for crankshaft/camshaft position correlation bank 2 sensor a. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0019Stop driving if it runs poorly
P0019 Crankshaft/Camshaft Position Correlation Bank 2 Sensor BP0019 is a generic OBD2 powertrain diagnostic trouble code for crankshaft/camshaft position correlation bank 2 sensor b. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0030Diagnose soon
P0030 HO2S Heater Control Circuit Bank 1 Sensor 1P0030 is a generic OBD2 powertrain diagnostic trouble code for ho2s heater control circuit bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0031Diagnose soon
P0031 HO2S Heater Control Circuit Low Bank 1 Sensor 1P0031 is a generic OBD2 powertrain diagnostic trouble code for ho2s heater control circuit low bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0032Diagnose soon
P0032 HO2S Heater Control Circuit High Bank 1 Sensor 1P0032 is a generic OBD2 powertrain diagnostic trouble code for ho2s heater control circuit high bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0036Diagnose soon
P0036 HO2S Heater Control Circuit Bank 1 Sensor 2P0036 is a generic OBD2 powertrain diagnostic trouble code for ho2s heater control circuit bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0037Diagnose soon
P0037 HO2S Heater Control Circuit Low Bank 1 Sensor 2P0037 is a generic OBD2 powertrain diagnostic trouble code for ho2s heater control circuit low bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0038Diagnose soon
P0038 HO2S Heater Control Circuit High Bank 1 Sensor 2P0038 is a generic OBD2 powertrain diagnostic trouble code for ho2s heater control circuit high bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0068Diagnose soon
P0068 MAP/MAF Throttle Position CorrelationP0068 is a generic OBD2 powertrain diagnostic trouble code for map/maf throttle position correlation. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0087Stop driving if it runs poorly
P0087 Fuel Rail/System Pressure Too LowP0087 is a generic OBD2 powertrain diagnostic trouble code for fuel rail/system pressure too low. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0088Stop driving if it runs poorly
P0088 Fuel Rail/System Pressure Too HighP0088 is a generic OBD2 powertrain diagnostic trouble code for fuel rail/system pressure too high. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0100Diagnose soon
P0100 Mass or Volume Air Flow CircuitP0100 is a generic OBD2 powertrain diagnostic trouble code for mass or volume air flow circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0102Diagnose soon
P0102 Mass or Volume Air Flow Circuit Low InputP0102 is a generic OBD2 powertrain diagnostic trouble code for mass or volume air flow circuit low input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0103Diagnose soon
P0103 Mass or Volume Air Flow Circuit High InputP0103 is a generic OBD2 powertrain diagnostic trouble code for mass or volume air flow circuit high input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0106Diagnose soon
P0106 MAP/Barometric Pressure Circuit Range/PerformanceP0106 is a generic OBD2 powertrain diagnostic trouble code for map/barometric pressure circuit range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0107Diagnose soon
P0107 MAP/Barometric Pressure Circuit Low InputP0107 is a generic OBD2 powertrain diagnostic trouble code for map/barometric pressure circuit low input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0108Diagnose soon
P0108 MAP/Barometric Pressure Circuit High InputP0108 is a generic OBD2 powertrain diagnostic trouble code for map/barometric pressure circuit high input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0112Diagnose soon
P0112 Intake Air Temperature Sensor 1 Circuit LowP0112 is a generic OBD2 powertrain diagnostic trouble code for intake air temperature sensor 1 circuit low. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0113Diagnose soon
P0113 Intake Air Temperature Sensor 1 Circuit HighP0113 is a generic OBD2 powertrain diagnostic trouble code for intake air temperature sensor 1 circuit high. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0117Diagnose soon
P0117 Engine Coolant Temperature Circuit Low InputP0117 is a generic OBD2 powertrain diagnostic trouble code for engine coolant temperature circuit low input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0118Diagnose soon
P0118 Engine Coolant Temperature Circuit High InputP0118 is a generic OBD2 powertrain diagnostic trouble code for engine coolant temperature circuit high input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0120Diagnose soon
P0120 Throttle/Pedal Position Sensor A CircuitP0120 is a generic OBD2 powertrain diagnostic trouble code for throttle/pedal position sensor a circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0121Diagnose soon
P0121 Throttle/Pedal Position Sensor A Range/PerformanceP0121 is a generic OBD2 powertrain diagnostic trouble code for throttle/pedal position sensor a range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0122Diagnose soon
P0122 Throttle/Pedal Position Sensor A Circuit LowP0122 is a generic OBD2 powertrain diagnostic trouble code for throttle/pedal position sensor a circuit low. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0123Diagnose soon
P0123 Throttle/Pedal Position Sensor A Circuit HighP0123 is a generic OBD2 powertrain diagnostic trouble code for throttle/pedal position sensor a circuit high. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0172Diagnose soon
P0172 System Too Rich Bank 1P0172 is a generic OBD2 powertrain diagnostic trouble code for system too rich bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0175Diagnose soon
P0175 System Too Rich Bank 2P0175 is a generic OBD2 powertrain diagnostic trouble code for system too rich bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0191Diagnose soon
P0191 Fuel Rail Pressure Sensor Circuit Range/PerformanceP0191 is a generic OBD2 powertrain diagnostic trouble code for fuel rail pressure sensor circuit range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0221Diagnose soon
P0221 Throttle/Pedal Position Sensor B Range/PerformanceP0221 is a generic OBD2 powertrain diagnostic trouble code for throttle/pedal position sensor b range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0130Diagnose soon
P0130 O2 Sensor Circuit Bank 1 Sensor 1P0130 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0131Diagnose soon
P0131 O2 Sensor Circuit Low Voltage Bank 1 Sensor 1P0131 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit low voltage bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0132Diagnose soon
P0132 O2 Sensor Circuit High Voltage Bank 1 Sensor 1P0132 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit high voltage bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0133Diagnose soon
P0133 O2 Sensor Circuit Slow Response Bank 1 Sensor 1P0133 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit slow response bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0134Diagnose soon
P0134 O2 Sensor Circuit No Activity Bank 1 Sensor 1P0134 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit no activity bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0136Diagnose soon
P0136 O2 Sensor Circuit Bank 1 Sensor 2P0136 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0137Diagnose soon
P0137 O2 Sensor Circuit Low Voltage Bank 1 Sensor 2P0137 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit low voltage bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0138Diagnose soon
P0138 O2 Sensor Circuit High Voltage Bank 1 Sensor 2P0138 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit high voltage bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0139Diagnose soon
P0139 O2 Sensor Circuit Slow Response Bank 1 Sensor 2P0139 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit slow response bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0140Diagnose soon
P0140 O2 Sensor Circuit No Activity Bank 1 Sensor 2P0140 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit no activity bank 1 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0150Diagnose soon
P0150 O2 Sensor Circuit Bank 2 Sensor 1P0150 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0151Diagnose soon
P0151 O2 Sensor Circuit Low Voltage Bank 2 Sensor 1P0151 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit low voltage bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0152Diagnose soon
P0152 O2 Sensor Circuit High Voltage Bank 2 Sensor 1P0152 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit high voltage bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0153Diagnose soon
P0153 O2 Sensor Circuit Slow Response Bank 2 Sensor 1P0153 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit slow response bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0154Diagnose soon
P0154 O2 Sensor Circuit No Activity Bank 2 Sensor 1P0154 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit no activity bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0155Diagnose soon
P0155 O2 Sensor Heater Circuit Bank 2 Sensor 1P0155 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor heater circuit bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0156Diagnose soon
P0156 O2 Sensor Circuit Bank 2 Sensor 2P0156 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit bank 2 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0157Diagnose soon
P0157 O2 Sensor Circuit Low Voltage Bank 2 Sensor 2P0157 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit low voltage bank 2 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0158Diagnose soon
P0158 O2 Sensor Circuit High Voltage Bank 2 Sensor 2P0158 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor circuit high voltage bank 2 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0161Diagnose soon
P0161 O2 Sensor Heater Circuit Bank 2 Sensor 2P0161 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor heater circuit bank 2 sensor 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0200Stop driving if it runs poorly
P0200 Injector Circuit/OpenP0200 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0201Stop driving if it runs poorly
P0201 Injector Circuit/Open Cylinder 1P0201 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open cylinder 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0202Stop driving if it runs poorly
P0202 Injector Circuit/Open Cylinder 2P0202 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open cylinder 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0203Stop driving if it runs poorly
P0203 Injector Circuit/Open Cylinder 3P0203 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open cylinder 3. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0204Stop driving if it runs poorly
P0204 Injector Circuit/Open Cylinder 4P0204 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open cylinder 4. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0205Stop driving if it runs poorly
P0205 Injector Circuit/Open Cylinder 5P0205 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open cylinder 5. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0206Stop driving if it runs poorly
P0206 Injector Circuit/Open Cylinder 6P0206 is a generic OBD2 powertrain diagnostic trouble code for injector circuit/open cylinder 6. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0305Stop driving if it runs poorly
P0305 Cylinder 5 Misfire DetectedP0305 is a generic OBD2 powertrain diagnostic trouble code for cylinder 5 misfire detected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0306Stop driving if it runs poorly
P0306 Cylinder 6 Misfire DetectedP0306 is a generic OBD2 powertrain diagnostic trouble code for cylinder 6 misfire detected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0307Stop driving if it runs poorly
P0307 Cylinder 7 Misfire DetectedP0307 is a generic OBD2 powertrain diagnostic trouble code for cylinder 7 misfire detected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0308Stop driving if it runs poorly
P0308 Cylinder 8 Misfire DetectedP0308 is a generic OBD2 powertrain diagnostic trouble code for cylinder 8 misfire detected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0325Diagnose soon
P0325 Knock Sensor 1 Circuit Bank 1P0325 is a generic OBD2 powertrain diagnostic trouble code for knock sensor 1 circuit bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0330Diagnose soon
P0330 Knock Sensor 2 Circuit Bank 2P0330 is a generic OBD2 powertrain diagnostic trouble code for knock sensor 2 circuit bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0335Stop driving if it runs poorly
P0335 Crankshaft Position Sensor A CircuitP0335 is a generic OBD2 powertrain diagnostic trouble code for crankshaft position sensor a circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0336Stop driving if it runs poorly
P0336 Crankshaft Position Sensor A Range/PerformanceP0336 is a generic OBD2 powertrain diagnostic trouble code for crankshaft position sensor a range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0340Stop driving if it runs poorly
P0340 Camshaft Position Sensor A Circuit Bank 1P0340 is a generic OBD2 powertrain diagnostic trouble code for camshaft position sensor a circuit bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0341Stop driving if it runs poorly
P0341 Camshaft Position Sensor A Range/Performance Bank 1P0341 is a generic OBD2 powertrain diagnostic trouble code for camshaft position sensor a range/performance bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0400Diagnose soon
P0400 EGR Flow MalfunctionP0400 is a generic OBD2 powertrain diagnostic trouble code for egr flow malfunction. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0401Diagnose soon
P0401 EGR Flow Insufficient DetectedP0401 is a generic OBD2 powertrain diagnostic trouble code for egr flow insufficient detected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0402Diagnose soon
P0402 EGR Flow Excessive DetectedP0402 is a generic OBD2 powertrain diagnostic trouble code for egr flow excessive detected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0403Diagnose soon
P0403 EGR Control CircuitP0403 is a generic OBD2 powertrain diagnostic trouble code for egr control circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0410Diagnose soon
P0410 Secondary Air Injection SystemP0410 is a generic OBD2 powertrain diagnostic trouble code for secondary air injection system. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0411Diagnose soon
P0411 Secondary Air Injection Incorrect FlowP0411 is a generic OBD2 powertrain diagnostic trouble code for secondary air injection incorrect flow. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0412Diagnose soon
P0412 Secondary Air Injection Switching Valve A CircuitP0412 is a generic OBD2 powertrain diagnostic trouble code for secondary air injection switching valve a circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0440Usually not urgent
P0440 EVAP System MalfunctionP0440 is a generic OBD2 powertrain diagnostic trouble code for evap system malfunction. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0441Usually not urgent
P0441 EVAP Incorrect Purge FlowP0441 is a generic OBD2 powertrain diagnostic trouble code for evap incorrect purge flow. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0443Usually not urgent
P0443 EVAP Purge Control Valve CircuitP0443 is a generic OBD2 powertrain diagnostic trouble code for evap purge control valve circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0446Usually not urgent
P0446 EVAP Vent Control CircuitP0446 is a generic OBD2 powertrain diagnostic trouble code for evap vent control circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0449Usually not urgent
P0449 EVAP Vent Valve/Solenoid CircuitP0449 is a generic OBD2 powertrain diagnostic trouble code for evap vent valve/solenoid circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0450Usually not urgent
P0450 EVAP Pressure Sensor/SwitchP0450 is a generic OBD2 powertrain diagnostic trouble code for evap pressure sensor/switch. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0451Usually not urgent
P0451 EVAP Pressure Sensor Range/PerformanceP0451 is a generic OBD2 powertrain diagnostic trouble code for evap pressure sensor range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0452Usually not urgent
P0452 EVAP Pressure Sensor Low InputP0452 is a generic OBD2 powertrain diagnostic trouble code for evap pressure sensor low input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0453Usually not urgent
P0453 EVAP Pressure Sensor High InputP0453 is a generic OBD2 powertrain diagnostic trouble code for evap pressure sensor high input. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0460Usually not urgent
P0460 Fuel Level Sensor CircuitP0460 is a generic OBD2 powertrain diagnostic trouble code for fuel level sensor circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0461Usually not urgent
P0461 Fuel Level Sensor Range/PerformanceP0461 is a generic OBD2 powertrain diagnostic trouble code for fuel level sensor range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0462Usually not urgent
P0462 Fuel Level Sensor Circuit LowP0462 is a generic OBD2 powertrain diagnostic trouble code for fuel level sensor circuit low. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0463Usually not urgent
P0463 Fuel Level Sensor Circuit HighP0463 is a generic OBD2 powertrain diagnostic trouble code for fuel level sensor circuit high. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0480Diagnose soon
P0480 Cooling Fan 1 Control CircuitP0480 is a generic OBD2 powertrain diagnostic trouble code for cooling fan 1 control circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0481Diagnose soon
P0481 Cooling Fan 2 Control CircuitP0481 is a generic OBD2 powertrain diagnostic trouble code for cooling fan 2 control circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0496Usually not urgent
P0496 EVAP Flow During Non-PurgeP0496 is a generic OBD2 powertrain diagnostic trouble code for evap flow during non-purge. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0500Diagnose soon
P0500 Vehicle Speed SensorP0500 is a generic OBD2 powertrain diagnostic trouble code for vehicle speed sensor. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0501Diagnose soon
P0501 Vehicle Speed Sensor Range/PerformanceP0501 is a generic OBD2 powertrain diagnostic trouble code for vehicle speed sensor range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0505Diagnose soon
P0505 Idle Air Control SystemP0505 is a generic OBD2 powertrain diagnostic trouble code for idle air control system. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0506Diagnose soon
P0506 Idle Air Control System RPM Lower Than ExpectedP0506 is a generic OBD2 powertrain diagnostic trouble code for idle air control system rpm lower than expected. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0562Stop driving if it runs poorly
P0562 System Voltage LowP0562 is a generic OBD2 powertrain diagnostic trouble code for system voltage low. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0563Stop driving if it runs poorly
P0563 System Voltage HighP0563 is a generic OBD2 powertrain diagnostic trouble code for system voltage high. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0600Stop driving if it runs poorly
P0600 Serial Communication LinkP0600 is a generic OBD2 powertrain diagnostic trouble code for serial communication link. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0601Stop driving if it runs poorly
P0601 Internal Control Module Memory Check Sum ErrorP0601 is a generic OBD2 powertrain diagnostic trouble code for internal control module memory check sum error. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0606Stop driving if it runs poorly
P0606 PCM Processor FaultP0606 is a generic OBD2 powertrain diagnostic trouble code for pcm processor fault. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0620Stop driving if it runs poorly
P0620 Generator Control CircuitP0620 is a generic OBD2 powertrain diagnostic trouble code for generator control circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0700Diagnose soon
P0700 Transmission Control System MalfunctionP0700 is a generic OBD2 powertrain diagnostic trouble code for transmission control system malfunction. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0715Diagnose soon
P0715 Input/Turbine Speed Sensor CircuitP0715 is a generic OBD2 powertrain diagnostic trouble code for input/turbine speed sensor circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0720Diagnose soon
P0720 Output Speed Sensor CircuitP0720 is a generic OBD2 powertrain diagnostic trouble code for output speed sensor circuit. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0730Stop driving if it runs poorly
P0730 Incorrect Gear RatioP0730 is a generic OBD2 powertrain diagnostic trouble code for incorrect gear ratio. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0731Stop driving if it runs poorly
P0731 Gear 1 Incorrect RatioP0731 is a generic OBD2 powertrain diagnostic trouble code for gear 1 incorrect ratio. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0732Stop driving if it runs poorly
P0732 Gear 2 Incorrect RatioP0732 is a generic OBD2 powertrain diagnostic trouble code for gear 2 incorrect ratio. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0733Stop driving if it runs poorly
P0733 Gear 3 Incorrect RatioP0733 is a generic OBD2 powertrain diagnostic trouble code for gear 3 incorrect ratio. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0734Stop driving if it runs poorly
P0734 Gear 4 Incorrect RatioP0734 is a generic OBD2 powertrain diagnostic trouble code for gear 4 incorrect ratio. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0740Diagnose soon
P0740 Torque Converter Clutch Circuit/OpenP0740 is a generic OBD2 powertrain diagnostic trouble code for torque converter clutch circuit/open. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0741Diagnose soon
P0741 Torque Converter Clutch Performance or Stuck OffP0741 is a generic OBD2 powertrain diagnostic trouble code for torque converter clutch performance or stuck off. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0742Stop driving if it runs poorly
P0742 Torque Converter Clutch Stuck OnP0742 is a generic OBD2 powertrain diagnostic trouble code for torque converter clutch stuck on. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0750Diagnose soon
P0750 Shift Solenoid AP0750 is a generic OBD2 powertrain diagnostic trouble code for shift solenoid a. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0755Diagnose soon
P0755 Shift Solenoid BP0755 is a generic OBD2 powertrain diagnostic trouble code for shift solenoid b. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0760Diagnose soon
P0760 Shift Solenoid CP0760 is a generic OBD2 powertrain diagnostic trouble code for shift solenoid c. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0776Stop driving if it runs poorly
P0776 Pressure Control Solenoid B Performance or Stuck OffP0776 is a generic OBD2 powertrain diagnostic trouble code for pressure control solenoid b performance or stuck off. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0796Stop driving if it runs poorly
P0796 Pressure Control Solenoid C Performance or Stuck OffP0796 is a generic OBD2 powertrain diagnostic trouble code for pressure control solenoid c performance or stuck off. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2004Diagnose soon
P2004 Intake Manifold Runner Control Stuck Open Bank 1P2004 is a generic OBD2 powertrain diagnostic trouble code for intake manifold runner control stuck open bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2005Diagnose soon
P2005 Intake Manifold Runner Control Stuck Open Bank 2P2005 is a generic OBD2 powertrain diagnostic trouble code for intake manifold runner control stuck open bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2006Diagnose soon
P2006 Intake Manifold Runner Control Stuck Closed Bank 1P2006 is a generic OBD2 powertrain diagnostic trouble code for intake manifold runner control stuck closed bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2007Diagnose soon
P2007 Intake Manifold Runner Control Stuck Closed Bank 2P2007 is a generic OBD2 powertrain diagnostic trouble code for intake manifold runner control stuck closed bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2096Diagnose soon
P2096 Post Catalyst Fuel Trim System Too Lean Bank 1P2096 is a generic OBD2 powertrain diagnostic trouble code for post catalyst fuel trim system too lean bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2097Diagnose soon
P2097 Post Catalyst Fuel Trim System Too Rich Bank 1P2097 is a generic OBD2 powertrain diagnostic trouble code for post catalyst fuel trim system too rich bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2098Diagnose soon
P2098 Post Catalyst Fuel Trim System Too Lean Bank 2P2098 is a generic OBD2 powertrain diagnostic trouble code for post catalyst fuel trim system too lean bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2099Diagnose soon
P2099 Post Catalyst Fuel Trim System Too Rich Bank 2P2099 is a generic OBD2 powertrain diagnostic trouble code for post catalyst fuel trim system too rich bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2177Diagnose soon
P2177 System Too Lean Off Idle Bank 1P2177 is a generic OBD2 powertrain diagnostic trouble code for system too lean off idle bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2179Diagnose soon
P2179 System Too Lean Off Idle Bank 2P2179 is a generic OBD2 powertrain diagnostic trouble code for system too lean off idle bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2187Diagnose soon
P2187 System Too Lean at Idle Bank 1P2187 is a generic OBD2 powertrain diagnostic trouble code for system too lean at idle bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2188Diagnose soon
P2188 System Too Rich at Idle Bank 1P2188 is a generic OBD2 powertrain diagnostic trouble code for system too rich at idle bank 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2189Diagnose soon
P2189 System Too Lean at Idle Bank 2P2189 is a generic OBD2 powertrain diagnostic trouble code for system too lean at idle bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2190Diagnose soon
P2190 System Too Rich at Idle Bank 2P2190 is a generic OBD2 powertrain diagnostic trouble code for system too rich at idle bank 2. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2195Diagnose soon
P2195 O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1P2195 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor signal biased/stuck lean bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2196Diagnose soon
P2196 O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1P2196 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor signal biased/stuck rich bank 1 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2197Diagnose soon
P2197 O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1P2197 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor signal biased/stuck lean bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2198Diagnose soon
P2198 O2 Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1P2198 is a generic OBD2 powertrain diagnostic trouble code for o2 sensor signal biased/stuck rich bank 2 sensor 1. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2227Diagnose soon
P2227 Barometric Pressure Sensor A Range/PerformanceP2227 is a generic OBD2 powertrain diagnostic trouble code for barometric pressure sensor a range/performance. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P2261Diagnose soon
P2261 Turbo/Super Charger Bypass Valve MechanicalP2261 is a generic OBD2 powertrain diagnostic trouble code for turbo/super charger bypass valve mechanical. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0299Diagnose soon
P0299 Turbo/Supercharger UnderboostP0299 is a generic OBD2 powertrain diagnostic trouble code for turbo/supercharger underboost. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.P0234Stop driving if it runs poorly
P0234 Turbo/Supercharger Overboost ConditionP0234 is a generic OBD2 powertrain diagnostic trouble code for turbo/supercharger overboost condition. The code identifies the system or circuit the engine computer flagged, but diagnosis still depends on vehicle symptoms, freeze-frame data, and related codes.