P01xx OBD2 Trouble Codes
This is the listing of P01xx OBD2 diagnostic trouble codes (DTCs). They all start with P01, e.g., P0106, P0123. The first letter P indicates that they are powertrain related codes, the next two digits 01 indicate that they are fuel & air metering related codes. The codes below are considered generic because they apply to all makes/models of OBD2 vehicles, although specific diagnosis and repair steps may vary.
P0100-P0199 Trouble Codes - Fuel and Air Metering
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| Code(s) | Description |
|---|---|
| P0100 | Mass or Volume Air Flow "A" Circuit Malfunction |
| P0101 | Mass or Volume Air Flow "A" Circuit Range/Performance Problem |
| P0102 | Mass or Volume Air Flow "A" Circuit Low Input |
| P0103 | Mass or Volume Air Flow "A" Circuit High Input |
| P0104 | Mass or Volume Air Flow "A" Circuit Intermittent |
| P0105 | Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction |
| P0106 | Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem |
| 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 |
| P010A | Mass or Volume Air Flow "B" Circuit |
| P010B | Mass or Volume Air Flow "B" Circuit Range/Performance |
| P010C | Mass or Volume Air Flow "B" Circuit Low |
| P010D | Mass or Volume Air Flow "B" Circuit High |
| P010E | Mass or Volume Air Flow "B" Circuit Intermittent/Erratic |
| P010F | Mass or Volume Air Flow Sensor A/B Correlation |
| P0110 | Intake Air Temperature Circuit Malfunction Bank 1 |
| P0111 | Intake Air Temperature Circuit Range/Performance Problem Bank 1 |
| P0112 | Intake Air Temperature Circuit Low Input Bank 1 |
| P0113 | Intake Air Temperature Circuit High Input Bank 1 |
| P0114 | Intake Air Temperature Circuit Intermittent Bank 1 |
| P0115 | Engine Coolant Temperature Sensor Circuit 1 Malfunction |
| P0116 | Engine Coolant Temperature Sensor Circuit 1 Range/Performance Problem |
| P0117 | Engine Coolant Temperature Sensor Circuit 1 Low Input |
| P0118 | Engine Coolant Temperature Sensor Circuit 1 High Input |
| P0119 | Engine Coolant Temperature Sensor Circuit 1 Intermittent |
| P011A | Engine Coolant Temperature Sensor 1/2 Correlation |
| P011B | Engine Coolant Temperature/Intake Air Temperature Correlation |
| P011C | Charge Air Temperature/Intake Air Temperature Correlation Bank 1 |
| P011D | Charge Air Temperature/Intake Air Temperature Correlation Bank 2 |
| P011E, P011F | ISO/SAE Reserved |
| P0120 | Throttle Position Sensor/Switch A Circuit Malfunction |
| P0121 | Throttle Position Sensor/Switch A Circuit Range/Performance Problem |
| P0122 | Throttle Position Sensor/Switch A Circuit Low Input |
| P0123 | Throttle Position Sensor/Switch A Circuit High Input |
| P0124 | Throttle 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 |
| P012A | Turbocharger/Supercharger Inlet Pressure Sensor Circuit (Downstream of throttle valve) |
| P012B | Turbocharger/Supercharger Inlet Pressure Sensor Circuit Range/Performance (Downstream of throttle valve) |
| P012C | Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low (Downstream of throttle valve) |
| P012D | Turbocharger/Supercharger Inlet Pressure Sensor Circuit High (Downstream of throttle valve) |
| P012E | Turbocharger/Supercharger Inlet Pressure Sensor Circuit Intermittent/Erratic (Downstream of throttle valve) |
| P012F | ISO/SAE Reserved |
| P0130 | 02 Sensor Circuit Malfunction (Bank I Sensor 1) |
| P0131 | 02 Sensor Circuit Low Voltage (Bank I Sensor I) |
| P0132 | 02 Sensor Circuit High Voltage (Bank I Sensor 1) |
| P0133 | 02 Sensor Circuit Slow Response (Bank 1 Sensor 1) |
| P0134 | 02 Sensor Circuit No Activity Detected (Bank I Sensor 1) |
| P0135 | 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) |
| P0136 | 02 Sensor Circuit Malfunction (Bank I Sensor 2) |
| P0137 | 02 Sensor Circuit Low Voltage (Bank I Sensor 2) |
| P0138 | 02 Sensor Circuit High Voltage (Bank I Sensor 2) |
| P0139 | 02 Sensor Circuit Slow Response (Bank 1 Sensor 2) |
| P013A | O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2) |
| P013B | O2 Sensor Slow Response - Lean to Rich (Bank 1 Sensor 2) |
| P013C | O2 Sensor Slow Response - Rich to Lean (Bank 2 Sensor 2) |
| P013D | O2 Sensor Slow Response - Lean to Rich (Bank 2 Sensor 2) |
| P013E | O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2) |
| P013F | O2 Sensor Delayed Response - Lean to Rich (Bank 1 Sensor 2) |
| P0140 | 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) |
| P0141 | 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) |
| P0142 | 02 Sensor Circuit Malfunction (Bank 1 Sensor 3) |
| P0143 | 02 Sensor Circuit Low Voltage (Bank 1 Sensor 3) |
| P0144 | 02 Sensor Circuit High Voltage (Bank 1 Sensor 3) |
| P0145 | 02 Sensor Circuit Slow Response (Bank 1 Sensor 3) |
| P0146 | 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 3) |
| P0147 | 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3) |
| P0148 | Fuel Delivery Error |
| P0149 | Fuel Timing Error |
| P014A | O2 Sensor Delayed Response - Rich to Lean (Bank 2 Sensor 2) |
| P014B | O2 Sensor Delayed Response - Lean to Rich (Bank 2 Sensor 2) |
| P014C | O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 1) |
| P014D | O2 Sensor Slow Response - Lean to Rich (Bank 1 Sensor 1) |
| P014E | O2 Sensor Slow Response - Rich to Lean (Bank 2 Sensor 1) |
| P014F | O2 Sensor Slow Response - Lean to Rich (Bank 2 Sensor 1) |
| P0150 | 02 Sensor Circuit Malfunction (Bank 2 Sensor 1) |
| P0151 | 02 Sensor Circuit Low Voltage (Bank 2 Sensor 1) |
| P0152 | 02 Sensor Circuit High Voltage (Bank 2 Sensor 1) |
| P0153 | 02 Sensor Circuit Slow Response (Bank 2 Sensor 1) |
| P0154 | 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1) |
| P0155 | 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1) |
| P0156 | 02 Sensor Circuit Malfunction (Bank 2 Sensor 2) |
| P0157 | 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2) |
| P0158 | 02 Sensor Circuit High Voltage (Bank 2 Sensor 2) |
| P0159 | 02 Sensor Circuit Slow Response (Bank 2 Sensor 2) |
| P015A | O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 1) |
| P015B | O2 Sensor Delayed Response - Lean to Rich (Bank 1 Sensor 1) |
| P015C | O2 Sensor Delayed Response - Rich to Lean (Bank 2 Sensor 1) |
| P015D | O2 Sensor Delayed Response - Lean to Rich (Bank 2 Sensor 1) |
| P015E & P015F | ISO/SAE Reserved |
| P0160 | 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2) |
| P0161 | 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) |
| P0162 | 02 Sensor Circuit Malfunction (Bank 2 Sensor 3) |
| P0163 | 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3) |
| P0164 | 02 Sensor Circuit High Voltage (Bank 2 Sensor 3) |
| P0165 | 02 Sensor Circuit Slow Response (Bank 2 Sensor 3) |
| P0166 | 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3) |
| P0167 | 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3) |
| P0168 | Fuel Temperature Too High |
| P0169 | Incorrect Fuel Composition |
| P016A, P016B, P016C, P016D, P016E, P016F | ISO/SAE Reserved |
| P0170 | Fuel Trim Malfunction (Bank 1) |
| P0171 | System too Lean (Bank 1) |
| P0172 | System too Rich (Bank 1) |
| P0173 | Fuel Trim Malfunction (Bank 2) |
| P0174 | System too Lean (Bank 2) |
| P0175 | System too Rich (Bank 2) |
| P0176 | Fuel Composition Sensor Circuit Malfunction |
| P0177 | Fuel Composition Sensor Circuit Range/Performance |
| P0178 | Fuel Composition Sensor Circuit Low Input |
| P0179 | Fuel Composition Sensor Circuit High Input |
| P017A, P017B, P017C, P017D, P017E, P017F | ISO/SAE Reserved |
| P0180 | Fuel Temperature Sensor A Circuit Malfunction |
| P0181 | Fuel Temperature Sensor A Circuit Range/Performance |
| P0182 | Fuel Temperature Sensor A Circuit Low Input |
| P0183 | Fuel Temperature Sensor A Circuit High Input |
| P0184 | Fuel Temperature Sensor A Circuit Intermittent |
| P0185 | Fuel Temperature Sensor B Circuit Malfunction |
| P0186 | Fuel Temperature Sensor B Circuit Range/Performance |
| P0187 | Fuel Temperature Sensor B Circuit Low Input |
| P0188 | Fuel Temperature Sensor B Circuit High Input |
| P0189 | Fuel Temperature Sensor B Circuit Intermittent |
| P018A | Fuel Pressure Sensor "B" Circuit |
| P018B | Fuel Pressure Sensor "B" Circuit Range/Performance |
| P018C | Fuel Pressure Sensor "B" Circuit Low |
| P018D | Fuel Pressure Sensor "B" Circuit High |
| P018E | Fuel Pressure Sensor "B" Circuit Intermittent/Erratic |
| P018F | Fuel System Over Pressure Relief Valve Frequent Activation |
| P0190 | Fuel Rail Pressure Sensor A Circuit |
| P0191 | Fuel Rail Pressure Sensor A Circuit Range/Performance |
| P0192 | Fuel Rail Pressure Sensor A Circuit Low Input |
| P0193 | Fuel Rail Pressure Sensor A Circuit High Input |
| P0194 | Fuel Rail Pressure Sensor A Circuit Intermittent |
| P0195 | Engine Oil Temperature Sensor Malfunction |
| 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 |
| P019A - P01FF | ISO/SAE Reserved |