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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

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.

Low priority P · Powertrain Clear all

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

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

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

Vehicle coverage

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

Diagnostic codes

Showing 265–288 of 298

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P0052Heated Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 1Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0052 means Heated Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 1. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0053Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 1Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0053 means Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 1. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0054Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 2Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0054 means Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 2. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0055Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 3Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0055 means Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0058Heated Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0058 means Heated Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0059Heated Oxygen Sensor Heater Resistance Bank 2 Sensor 1Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0059 means Heated Oxygen Sensor Heater Resistance Bank 2 Sensor 1. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0060Heated Oxygen Sensor Heater Resistance Bank 2 Sensor 2Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0060 means Heated Oxygen Sensor Heater Resistance Bank 2 Sensor 2. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0061Heated Oxygen Sensor Heater Resistance Bank 2 Sensor 3Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0061 means Heated Oxygen Sensor Heater Resistance Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0062Heated Oxygen Sensor Heater Control Circuit Bank 2 Sensor 3Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0062 means Heated Oxygen Sensor Heater Control Circuit Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0063Heated Oxygen Sensor Heater Control Circuit Low Bank 2 Sensor 3Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0063 means Heated Oxygen Sensor Heater Control Circuit Low Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0064Heated Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 3Low prioritySensors & Electronics45–120 minutes for initial diagnosisP0064 means Heated Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 3. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0070Ambient Air Temperature Sensor CircuitLow prioritySensors & Electronics30–90 minutes for initial diagnosisP0070 means Ambient Air Temperature Sensor Circuit. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0072Ambient Air Temperature Sensor Circuit LowLow prioritySensors & Electronics45–120 minutes for initial diagnosisP0072 means Ambient Air Temperature Sensor Circuit Low. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0073Ambient Air Temperature Sensor Circuit HighLow prioritySensors & Electronics30–90 minutes for initial diagnosisP0073 means Ambient Air Temperature Sensor Circuit High. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0074Ambient Air Temperature Sensor Circuit IntermittentLow prioritySensors & Electronics45–120 minutes for initial diagnosisP0074 means Ambient Air Temperature Sensor Circuit Intermittent. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0137Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0137 means Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0138Oxygen Sensor Circuit High Voltage Bank 1 Sensor 2Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0138 means Oxygen Sensor Circuit High Voltage Bank 1 Sensor 2. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0139Oxygen Sensor Circuit Slow Response Bank 1 Sensor 2Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0139 means Oxygen Sensor Circuit Slow Response Bank 1 Sensor 2. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0151Oxygen Sensor Circuit Low Voltage Bank 2 Sensor 1Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0151 means Oxygen Sensor Circuit Low Voltage Bank 2 Sensor 1. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0152Oxygen Sensor Circuit High Voltage Bank 2 Sensor 1Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0152 means Oxygen Sensor Circuit High Voltage Bank 2 Sensor 1. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0153Oxygen Sensor Circuit Slow Response Bank 2 Sensor 1Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0153 means Oxygen Sensor Circuit Slow Response Bank 2 Sensor 1. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0154Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 1Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0154 means Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 1. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0155Oxygen Sensor Heater Circuit Bank 2 Sensor 1Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0155 means Oxygen Sensor Heater Circuit Bank 2 Sensor 1. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0156Oxygen Sensor Circuit Bank 2 Sensor 2Low prioritySensors & Electronics30–90 minutes for initial diagnosisP0156 means Oxygen Sensor Circuit Bank 2 Sensor 2. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.