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All OBD-II Trouble Codes and Definitions

All OBD-II Trouble Codes and Definitions

Definitions for generic powertrain diagnostic trouble codes.

Generic Powertrain Trouble Codes | (P0xxx, P2xxx, P34xx – P39xx)

  • P0001 – Fuel Volume Regulator Control Circuit/Open
  • P0002 – Fuel Volume Regulator Control Circuit Range/Performance
  • P0003 – Fuel Volume Regulator Control Circuit Low
  • P0004 – Fuel Volume Regulator Control Circuit High
  • P0005 – Fuel Shutoff Valve “A” Control Circuit/Open
  • P0006 – Fuel Shutoff Valve “A” Control Circuit Low
  • P0007 – Fuel Shutoff Valve “A” Control Circuit High
  • P0008 – Engine Position System Performance
  • P0009 – Engine Position System Performance
  • P0010 – “A” Camshaft Position Actuator Circuit
  • P0011 – “A” Camshaft Position – Timing Over-Advanced or System Performance
  • P0012 – “A” Camshaft Position – Timing Over-Retarded
  • P0013 – “B” Camshaft Position – Actuator Circuit
  • P0014 – “B” Camshaft Position – Timing Over-Advanced or System Performance
  • P0015 – “B” Camshaft Position – Timing Over-Retarded
  • P0016 – Crankshaft Position – Camshaft Position Correlation
  • P0017 – Crankshaft Position – Camshaft Position Correlation
  • P0018 – Crankshaft Position – Camshaft Position Correlation
  • P0019 – Crankshaft Position – Camshaft Position Correlation
  • P0020 – “A” Camshaft Position Actuator Circuit

Nissan Diagnostic Trouble Codes

  • P0021 – “A” Camshaft Position – Timing Over-Advanced or System Performance
  • P0022 – “A” Camshaft Position – Timing Over-Retarded
  • P0023 – “B” Camshaft Position – Actuator Circuit
  • P0024 – “B” Camshaft Position – Timing Over-Advanced or System Performance
  • P0025 – “B” Camshaft Position – Timing Over-Retarded
  • P0026 – Intake Valve Control Solenoid Circuit Range/Performance
  • P0027 – Exhaust Valve Control Solenoid Circuit Range/Performance
  • P0028 – Intake Valve Control Solenoid Circuit Range/Performance
  • P0029 – Exhaust Valve Control Solenoid Circuit Range/Performance
  • P0030 – HO2S Heater Control Circuit
  • P0031 – HO2S Heater Control Circuit Low
  • P0032 – HO2S Heater Control Circuit High
  • P0033 – Turbo Charger Bypass Valve Control Circuit
  • P0034 – Turbo Charger Bypass Valve Control Circuit Low
  • P0035 – Turbo Charger Bypass Valve Control Circuit High
  • P0036 – HO2S Heater Control Circuit
  • P0037 – HO2S Heater Control Circuit Low
  • P0038 – HO2S Heater Control Circuit High
  • P0039 – Turbo/Super Charger Bypass Valve Control Circuit Range/Performance
  • P0040 – O2 Sensor Signals Swapped Bank 1 Sensor 1/ Bank 2 Sensor 1

Mercedes-Benz Diagnostic Trouble Code

  • P0041 – O2 Sensor Signals Swapped Bank 1 Sensor 2/ Bank 2 Sensor 2
  • P0042 – HO2S Heater Control Circuit
  • P0043 – HO2S Heater Control Circuit Low
  • P0044 – HO2S Heater Control Circuit High
  • P0045 – Turbo/Super Charger Boost Control Solenoid Circuit/Open
  • P0046 – Turbo/Super Charger Boost Control Solenoid Circuit Range/Performance
  • P0047 – Turbo/Super Charger Boost Control Solenoid Circuit Low
  • P0048 – Turbo/Super Charger Boost Control Solenoid Circuit High
  • P0049 – Turbo/Super Charger Turbine Overspeed
  • P0050 – HO2S Heater Control Circuit
  • P0051 – HO2S Heater Control Circuit Low
  • P0052 – HO2S Heater Control Circuit High
  • P0053 – HO2S Heater Resistance
  • P0054 – HO2S Heater Resistance
  • P0055 – HO2S Heater Resistance
  • P0056 – HO2S Heater Control Circuit
  • P0057 – HO2S Heater Control Circuit Low
  • P0058 – HO2S Heater Control Circuit High
  • P0059 – HO2S Heater Resistance
  • P0060 – HO2S Heater Resistance

COMPLETE DASHBOARD LIGHT SYMBOLS

  • P0061 HO2S Heater Resistance
  • P0062 HO2S Heater Control Circuit
  • P0063 HO2S Heater Control Circuit Low
  • P0064 HO2S Heater Control Circuit High
  • P0065 Air Assisted Injector Control Range/Performance
  • P0066 Air Assisted Injector Control Circuit or Circuit Low
  • P0067 Air Assisted Injector Control Circuit High
  • P0068 MAP/MAF – Throttle Position Correlation
  • P0069 Manifold Absolute Pressure – Barometric Pressure Correlation
  • P0070 Ambient Air Temperature Sensor Circuit
  • P0071 Ambient Air Temperature Sensor Range/Performance
  • P0072 Ambient Air Temperature Sensor Circuit Low
  • P0073 Ambient Air Temperature Sensor Circuit High
  • P0074 Ambient Air Temperature Sensor Circuit Intermittent
  • P0075 Intake Valve Control Solenoid Circuit
  • P0076 Intake Valve Control Solenoid Circuit Low
  • P0077 Intake Valve Control Solenoid Circuit High
  • P0078 Exhaust Valve Control Solenoid Circuit
  • P0079 Exhaust Valve Control Solenoid Circuit Low
  • P0080 Exhaust Valve Control Solenoid Circuit High
  • P0081 Intake Valve Control Solenoid Circuit
  • P0082 Intake Valve Control Solenoid Circuit Low
  • P0083 Intake Valve Control Solenoid Circuit High
  • P0084 Exhaust Valve Control Solenoid Circuit
  • P0085 Exhaust Valve Control Solenoid Circuit Low


  • P0086 Exhaust Valve Control Solenoid Circuit High
  • P0087 Fuel Rail/System Pressure – Too Low
  • P0088 Fuel Rail/System Pressure – Too High
  • P0089 Fuel Pressure Regulator 1 Performance
  • P0090 Fuel Pressure Regulator 1 Control Circuit
  • P0091 Fuel Pressure Regulator 1 Control Circuit Low
  • P0092 Fuel Pressure Regulator 1 Control Circuit High
  • P0093 Fuel System Leak Detected – Large Leak
  • P0094 Fuel System Leak Detected – Small Leak
  • P0095 Intake Air Temperature Sensor 2 Circuit
  • P0096 Intake Air Temperature Sensor 2 Circuit Range/Performance
  • P0097 Intake Air Temperature Sensor 2 Circuit Low
  • P0098 Intake Air Temperature Sensor 2 Circuit High
  • P0099 Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic
  • P0100 Mass or Volume Air Flow Circuit
  • P0101 Mass or Volume Air Flow Circuit Range/Performance
  • P0102 Mass or Volume Air Flow Circuit Low Input
  • P0103 Mass or Volume Air Flow Circuit High Input
  • P0104 Mass or Volume Air Flow Circuit Intermittent
  • P0105 Manifold Absolute Pressure/Barometric Pressure Circuit
  • P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance
  • P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
  • P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • P0109 Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
  • P0110 Intake Air Temperature Sensor 1 Circuit
  • P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance
  • P0112 Intake Air Temperature Sensor 1 Circuit Low
  • P0113 Intake Air Temperature Sensor 1 Circuit High
  • P0114 Intake Air Temperature Sensor 1 Circuit Intermittent
  • P0115 Engine Coolant Temperature Circuit
  • P0116 Engine Coolant Temperature Circuit Range/Performance
  • P0117 Engine Coolant Temperature Circuit Low
  • P0118 Engine Coolant Temperature Circuit High

Explained DTC: P0446 Evaporative Emission Control System Vent Control Circuit Malfunction

  • P0119 Engine Coolant Temperature Circuit Intermittent
  • P0120 Throttle/Pedal Position Sensor/Switch “A” Circuit
  • P0121 Throttle/Pedal Position Sensor/Switch “A” Circuit Range/Performance
  • P0122 Throttle/Pedal Position Sensor/Switch “A” Circuit Low
  • P0123 Throttle/Pedal Position Sensor/Switch “A” Circuit High
  • P0124 Throttle/Pedal Position Sensor/Switch “A” Circuit Intermittent
  • P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
  • P0126 Insufficient Coolant Temperature for Stable Operation
  • P0127 Intake Air Temperature Too High
  • P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating
  • Temperature)
  • P0129 Barometric Pressure Too Low
  • P0130 O2 Sensor Circuit
  • P0131 O2 Sensor Circuit Low Voltage
  • P0132 O2 Sensor Circuit High Voltage
  • P0133 O2 Sensor Circuit Slow Response
  • P0134 O2 Sensor Circuit No Activity Detected
  • P0135 O2 Sensor Heater Circuit
  • P0136 O2 Sensor Circuit
  • P0137 O2 Sensor Circuit Low Voltage
  • P0138 O2 Sensor Circuit High Voltage
  • P0139 O2 Sensor Circuit Slow Response
  • P0140 O2 Sensor Circuit No Activity Detected
  • P0141 O2 Sensor Heater Circuit
  • P0142 O2 Sensor Circuit
  • P0143 O2 Sensor Circuit Low Voltage
  • P0144 O2 Sensor Circuit High Voltage
  • P0145 O2 Sensor Circuit Slow Response
  • P0146 O2 Sensor Circuit No Activity Detected
  • P0147 O2 Sensor Heater Circuit
  • P0148 Fuel Delivery Error
  • P0149 Fuel Timing Error
  • P0150 O2 Sensor Circuit
  • P0151 O2 Sensor Circuit Low Voltage


  • P0152 O2 Sensor Circuit High Voltage
  • P0153 O2 Sensor Circuit Slow Response
  • P0154 O2 Sensor Circuit No Activity Detected
  • P0155 O2 Sensor Heater Circuit
  • P0156 O2 Sensor Circuit
  • P0157 O2 Sensor Circuit Low Voltage
  • P0158 O2 Sensor Circuit High Voltage
  • P0159 O2 Sensor Circuit Slow Response
  • P0160 O2 Sensor Circuit No Activity Detected
  • P0161 O2 Sensor Heater Circuit
  • P0162 O2 Sensor Circuit
  • P0163 O2 Sensor Circuit Low Voltage
  • P0164 O2 Sensor Circuit High Voltage
  • P0165 O2 Sensor Circuit Slow Response
  • P0166 O2 Sensor Circuit No Activity Detected
  • P0167 O2 Sensor Heater Circuit
  • P0168 Fuel Temperature Too High
  • P0169 Incorrect Fuel Composition
  • P0170 Fuel Trim
  • P0171 System Too Lean
  • P0172 System Too Rich
  • P0173 Fuel Trim
  • P0174 System Too Lean
  • P0175 System Too Rich
  • P0176 Fuel Composition Sensor Circuit
  • P0177 Fuel Composition Sensor Circuit Range/Performance
  • P0178 Fuel Composition Sensor Circuit Low
  • P0179 Fuel Composition Sensor Circuit High
  • P0180 Fuel Temperature Sensor A Circuit
  • P0181 Fuel Temperature Sensor A Circuit Range/Performance
  • P0182 Fuel Temperature Sensor A Circuit Low
  • P0183 Fuel Temperature Sensor A Circuit High
  • P0184 Fuel Temperature Sensor A Circuit Intermittent


  • P0185 Fuel Temperature Sensor B Circuit
  • P0186 Fuel Temperature Sensor B Circuit Range/Performance
  • P0187 Fuel Temperature Sensor B Circuit Low
  • P0188 Fuel Temperature Sensor B Circuit High
  • P0189 Fuel Temperature Sensor B Circuit Intermittent
  • P0190 Fuel Rail Pressure Sensor Circuit
  • P0191 Fuel Rail Pressure Sensor Circuit Range/Performance
  • P0192 Fuel Rail Pressure Sensor Circuit Low
  • P0193 Fuel Rail Pressure Sensor Circuit High
  • P0194 Fuel Rail Pressure Sensor Circuit Intermittent
  • P0195 Engine Oil Temperature Sensor
  • P0196 Engine Oil Temperature Sensor Range/Performance
  • P0197 Engine Oil Temperature Sensor Low
  • P0198 Engine Oil Temperature Sensor High
  • P0199 Engine Oil Temperature Sensor Intermittent
  • P0200 Injector Circuit/Open
  • P0201 Injector Circuit/Open – Cylinder 1
  • P0202 Injector Circuit/Open – Cylinder 2
  • P0203 Injector Circuit/Open – Cylinder 3
  • P0204 Injector Circuit/Open – Cylinder 4
  • P0205 Injector Circuit/Open – Cylinder 5
  • P0206 Injector Circuit/Open – Cylinder 6
  • P0207 Injector Circuit/Open – Cylinder 7
  • P0208 Injector Circuit/Open – Cylinder 8
  • P0209 Injector Circuit/Open – Cylinder 9
  • P0210 Injector Circuit/Open – Cylinder 10
  • P0211 Injector Circuit/Open – Cylinder 11
  • P0212 Injector Circuit/Open – Cylinder 12
  • P0213 Cold Start Injector 1
  • P0214 Cold Start Injector 2
  • P0215 Engine Shutoff Solenoid
  • P0216 Injector/Injection Timing Control Circuit
  • P0217 Engine Coolant Over Temperature Condition

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