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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.

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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 2041–2064 of 2110

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P341BDeactivation/Intake Valve Control Circuit Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP341B relates to deactivation/intake valve control circuit performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P341CDeactivation/Exhaust Valve Control Circuit Performance Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP341C relates to deactivation/exhaust valve control circuit performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P341DDeactivation/Exhaust Valve Control Circuit Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP341D relates to deactivation/exhaust valve control circuit performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.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.P0068MAP/MAF–Throttle Position CorrelationCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0068 means MAP/MAF–Throttle Position Correlation. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.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.P0095Intake Air Temperature Sensor 2 CircuitCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0095 means Intake Air Temperature Sensor 2 Circuit. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0096Intake Air Temperature Sensor 2 Circuit Range/PerformanceCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0096 means Intake Air Temperature Sensor 2 Circuit Range/Performance. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0097Intake Air Temperature Sensor 2 Circuit LowCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0097 means Intake Air Temperature Sensor 2 Circuit Low. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.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.