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9,253 diagnostic guides

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Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

Check soon P · Powertrain Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 6601–6624 of 6682

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P0098Intake Air Temperature Sensor 2 Circuit HighCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0098 means Intake Air Temperature Sensor 2 Circuit High. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0099Intake Air Temperature Sensor 2 Circuit IntermittentCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0099 means Intake Air Temperature Sensor 2 Circuit Intermittent. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0103Mass or Volume Air Flow Circuit High InputCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0103 means Mass or Volume Air Flow Circuit High Input. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0104Mass or Volume Air Flow Circuit IntermittentCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0104 means Mass or Volume Air Flow Circuit Intermittent. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0107Manifold Absolute Pressure/Barometric Pressure Circuit Low InputCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0107 means Manifold Absolute Pressure/Barometric Pressure Circuit Low Input. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0108Manifold Absolute Pressure/Barometric Pressure Circuit High InputCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0108 means Manifold Absolute Pressure/Barometric Pressure Circuit High Input. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0109Manifold Absolute Pressure/Barometric Pressure Circuit IntermittentCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0109 means Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0110Intake Air Temperature Sensor 1 CircuitCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0110 means Intake Air Temperature Sensor 1 Circuit. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0111Intake Air Temperature Sensor 1 Circuit Range/PerformanceCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0111 means Intake Air Temperature Sensor 1 Circuit Range/Performance. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0112Intake Air Temperature Sensor 1 Circuit LowCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0112 means Intake Air Temperature Sensor 1 Circuit Low. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0119Engine Coolant Temperature Sensor 1 Circuit IntermittentCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0119 means Engine Coolant Temperature Sensor 1 Circuit Intermittent. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0123Throttle/Pedal Position Sensor/Switch A Circuit High InputCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0123 means Throttle/Pedal Position Sensor/Switch A Circuit High Input. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0124Throttle/Pedal Position Sensor/Switch A Circuit IntermittentCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0124 means Throttle/Pedal Position Sensor/Switch A Circuit Intermittent. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0143Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0143 means Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0144Oxygen Sensor Circuit High Voltage Bank 1 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0144 means Oxygen Sensor Circuit High Voltage Bank 1 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0145Oxygen Sensor Circuit Slow Response Bank 1 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0145 means Oxygen Sensor Circuit Slow Response Bank 1 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0146Oxygen Sensor Circuit No Activity Detected Bank 1 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0146 means Oxygen Sensor Circuit No Activity Detected Bank 1 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0147Oxygen Sensor Heater Circuit Bank 1 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0147 means Oxygen Sensor Heater Circuit Bank 1 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0160Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 2Check soonEmissions System45–120 minutes for initial diagnosisP0160 means Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 2. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0162Oxygen Sensor Circuit Bank 2 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0162 means Oxygen Sensor Circuit Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0163Oxygen Sensor Circuit Low Voltage Bank 2 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0163 means Oxygen Sensor Circuit Low Voltage Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0164Oxygen Sensor Circuit High Voltage Bank 2 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0164 means Oxygen Sensor Circuit High Voltage Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0165Oxygen Sensor Circuit Slow Response Bank 2 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0165 means Oxygen Sensor Circuit Slow Response Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0166Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 3Check soonEmissions System45–120 minutes for initial diagnosisP0166 means Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.