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P-codes, Powertrain

Engine, transmission, fuel system and emissions.

All types P-codes C-codes B-codes U-codes

What are P-codes?

P-codes are the most common OBD fault codes and cover everything driven by the engine, the combustion process, fuel delivery, ignition, transmission, and emissions control. The first digit after the P shows who defined the code: P0xxx codes are generic and mean the same thing on every car; P1xxx–P3xxx are manufacturer-enhanced codes that vary by brand.

General context

P-codes vary widely in their potential impact. Some, particularly those involving oil pressure, coolant, or fuel delivery, can indicate faults that may make a vehicle unsafe to continue driving. Others, such as some emissions and sensor codes, may have little immediate effect on drivability. The actual urgency of any specific code depends on the underlying cause on a specific vehicle and can only be confirmed by a qualified mechanic.

We don't assign per-code severity ratings. Whether a specific fault is urgent depends on the cause on a specific vehicle, which only a qualified mechanic can determine.

Most common P-codes

The P-codes drivers look up most often.

Random/Multiple Cylinder Misfire Detected

Catalyst System Efficiency Below Threshold (Bank 1)

System Too Lean (Bank 1)

EGR Flow Insufficient Detected

Evaporative Emission Control System Leak Detected (small leak)

Evaporative Emission Control System Leak Detected (Gross Leak)

Catalyst System Efficiency Below Threshold (Bank 2)

Mass Air Flow (MAF) Circuit Range/Performance

Intake Air Temperature Sensor 1 Circuit High Input

Transmission Control System Malfunction

Turbocharger/Supercharger "A" Overboost Condition

All P-codes (4,767)

Page 1 of 48

P0001 Fuel Volume Regulator Control Circuit/Open Fuel System P0002 Fuel Volume Regulator Control Circuit Range/Performance Fuel System P0003 Fuel Volume Regulator Control Circuit Low Fuel System P0004 Fuel Volume Regulator Control Circuit High Fuel System P0005 Fuel Shutoff Valve "A" Control Circuit/Open Fuel System P0006 Fuel Shutoff Valve "A" Control Circuit Low Fuel System P0007 Fuel Shutoff Valve "A" Control Circuit High Fuel System P0008 Engine Position System Performance Bank 1 Timing P0009 Engine Position System Performance Bank 2 Timing P000A A Camshaft Position Slow Response Bank 1 Timing P000B B Camshaft Position Slow Response Bank 1 Timing P000C A Camshaft Position Slow Response Bank 2 Timing P000D B Camshaft Position Slow Response Bank 2 Timing P000E Fuel Volume Regulator Control Exceeded Learning Limit Fuel System P000F Fuel System Over Pressure Relief Valve Activated Fuel System P0010 "A" Camshaft Position Actuator Circuit (Bank 1) Timing P0011 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) Timing P0012 "A" Camshaft Position - Timing Over-Retarded (Bank 1) Timing P0013 "B" Camshaft Position - Actuator Circuit (Bank 1) Timing P0014 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) Timing P0015 "B" Camshaft Position - Timing Over-Retarded (Bank 1) Timing P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) Timing P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) Timing P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A) Timing P0019 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) Timing P001A A Camshaft Profile Control Circuit/Open Bank 1 Timing P001B A Camshaft Profile Control Circuit Low Bank 1 Timing P001C A Camshaft Profile Control Circuit High Bank 1 Timing P001D A Camshaft Profile Control Circuit/Open Bank 2 Timing P001E A Camshaft Profile Control Circuit Low Bank 2 Timing P001F A Camshaft Profile Control Circuit High Bank 2 Timing P0020 "A" Camshaft Position - Actuator Circuit (Bank 2) Timing P0021 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) Timing P0022 "A" Camshaft Position - Timing Over-Retarded (Bank 2) Timing P0023 "B" Camshaft Position - Actuator Circuit (Bank 2) Timing P0024 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) Timing P0025 "B" Camshaft Position - Timing Over-Retarded (Bank 2) Timing P0026 Intake Valve Control Solenoid Circuit Range/Performance Bank 1 Timing P0027 Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1 Timing P0028 Intake Valve Control Solenoid Circuit Range/Performance Bank 2 Timing P0029 Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2 Timing P002A B Camshaft Profile Control Circuit/Open Bank 1 Timing P002B B Camshaft Profile Control Circuit Low Bank 1 Timing P002C B Camshaft Profile Control Circuit High Bank 1 Timing P002D B Camshaft Profile Control Circuit/Open Bank 2 Timing P002E B Camshaft Profile Control Circuit Low Bank 2 Timing P002F B Camshaft Profile Control Circuit High Bank 2 Timing P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1) Electrical & Sensors P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) Electrical & Sensors P0032 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) Electrical & Sensors P0033 Turbo Charger Bypass Valve Control Circuit Turbo / Supercharger P0034 Turbocharger/Supercharger Bypass Valve Control Circuit Low Turbo / Supercharger P0035 Turbocharger/Supercharger Bypass Valve Control Circuit High Turbo / Supercharger P0036 Turbocharger/Supercharger Bypass Valve Control Circuit Range/Performance Turbo / Supercharger P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2) Electrical & Sensors P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2) Electrical & Sensors P0039 Turbo Charger Bypass Valve Control Circuit Range Performance Turbo / Supercharger P003A Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit Turbo / Supercharger P003B Turbocharger/Supercharger Boost Control B Position Exceeded Learning Limit Turbo / Supercharger P003C A Camshaft Profile Control Circuit Performance/Stuck Off Bank 1 Timing P003D A Camshaft Profile Control Circuit Stuck On Bank 1 Timing P003E A Camshaft Profile Control Circuit Performance/Stuck Off Bank 2 Timing P003F A Camshaft Profile Control Circuit Stuck On Bank 2 Timing P0040 O2 Sensor Signals Swapped Bank 1 Sensor 1 / Bank 2 Sensor 1 Electrical & Sensors P0041 O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 2 Sensor 2 Electrical & Sensors P0042 HO2S Heater Control Circuit (Bank 1 Sensor 3) Electrical & Sensors P0043 HO2S Heater Control Circuit Low (Bank 1 Sensor 3) Electrical & Sensors P0044 HO2S Heater Control Circuit High (Bank 1 Sensor 3) Electrical & Sensors P0045 Turbocharger/Supercharger Boost Control A Circuit/Open Turbo / Supercharger P0046 Turbocharger/Supercharger Boost Control A Circuit Range/Performance Turbo / Supercharger P0047 Turbocharger/Supercharger Boost Control A Circuit Low Turbo / Supercharger P0048 Turbocharger/Supercharger Boost Control A Circuit High Turbo / Supercharger P0049 Turbocharger/Supercharger Turbine Overspeed Turbo / Supercharger P004A Turbocharger/Supercharger Boost Control "B" Circuit Open Turbo / Supercharger P004B Turbocharger/Supercharger Boost Control "B" Circuit Range Performance Turbo / Supercharger P004C Turbocharger/Supercharger Boost Control "B" Circuit Low Turbo / Supercharger P004D Turbocharger/Supercharger Boost Control "B" Circuit High Turbo / Supercharger P004E Turbocharger/Supercharger Boost Control "A" Circuit Intermittent/Erratic Turbo / Supercharger P004F Turbocharger/Supercharger Boost Control "B" Circuit Intermittent/Erratic Turbo / Supercharger P0050 HO2S Heater Control Circuit (Bank 2 Sensor 1) Electrical & Sensors P0051 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1) Electrical & Sensors P0052 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1) Electrical & Sensors P0053 HO2S Heater Resistance (Bank 1 Sensor 1) Electrical & Sensors P0054 HO2S Heater Resistance (Bank 1 Sensor 2) Electrical & Sensors P0055 HO2S Heater Resistance (Bank 1 Sensor 3) Electrical & Sensors P0056 HO2S Heater Control Circuit (Bank 2 Sensor 2) Electrical & Sensors P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2) Electrical & Sensors P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2) Electrical & Sensors P0059 HO2S Heater Resistance (Bank 2 Sensor 1) Electrical & Sensors P005A B Camshaft Profile Control Circuit Performance/Stuck Off Bank 1 Timing P005B B Camshaft Profile Control Circuit Stuck On Bank 1 Timing P005C B Camshaft Profile Control Circuit Performance/Stuck Off Bank 2 Timing P005D B Camshaft Profile Control Circuit Stuck On Bank 2 Timing P005E Turbocharger/Supercharger Boost Control B Supply Voltage Circuit Low Electrical & Sensors P005F Turbocharger/Supercharger Boost Control B Supply Voltage Circuit High Electrical & Sensors P0060 HO2S Heater Resistance (Bank 2 Sensor 2) Electrical & Sensors P0061 HO2S Heater Resistance (Bank 2 Sensor 3) Electrical & Sensors P0062 HO2S Heater Control Circuit (Bank 2 Sensor 3) Electrical & Sensors P0063 HO2S Heater Control Circuit Low (Bank 2 Sensor 3) Electrical & Sensors P0064 HO2S Heater Control Circuit High (Bank 2 Sensor 3) Electrical & Sensors

Showing 1–100 of 4,756 remaining codes

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