Diagnostic library

Find an OBD2 code

Search the code from your scanner, then narrow the library by system, severity, or code family.

9,253 diagnostic guides

Sort

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.

Check soon Clear all

Quick browse

Choose a vehicle system

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 6193–6216 of 8256

Most searched first

P2C63O2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP2C63 relates to o2 sensor pumping current trim circuit low bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C64O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP2C64 relates to o2 sensor pumping current trim circuit high bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C65O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP2C65 relates to o2 sensor out of range during deceleration bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C66Hybrid/EV Electronics Coolant Pump A UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2C66 relates to hybrid/ev electronics coolant pump a underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C68Hybrid/EV Electronics Coolant Pump A Stuck/StalledCheck soonEngine Problems30–120 minutes for initial diagnosisP2C68 relates to hybrid/ev electronics coolant pump a stuck/stalled. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C69Drive Motor “A” Phase X CurrentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C69 relates to drive motor “a” phase x current. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C6ADrive Motor “A” Phase X Current LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C6A relates to drive motor “a” phase x current low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C6BDrive Motor “A” Phase X Current HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C6B relates to drive motor “a” phase x current high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C6CDrive Motor “A” Phase Y CurrentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C6C relates to drive motor “a” phase y current. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C6DDrive Motor “A” Phase Y Current LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C6D relates to drive motor “a” phase y current low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C6EDrive Motor “A” Phase Y Current HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C6E relates to drive motor “a” phase y current high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C6FDrive Motor “A” Phase Z CurrentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C6F relates to drive motor “a” phase z current. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C70Drive Motor “A” Phase Z Current LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C70 relates to drive motor “a” phase z current low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C71Drive Motor “A” Phase Z Current HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C71 relates to drive motor “a” phase z current high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C72Hybrid/EV Electronics Cooling System PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C72 relates to hybrid/ev electronics cooling system performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C73Active Grille Air Shutter C Stuck OnCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C73 relates to active grille air shutter c stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C74Active Grille Air Shutter C Control Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C74 relates to active grille air shutter c control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C76Active Grille Air Shutter D Stuck OnCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C76 relates to active grille air shutter d stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C77Active Grille Air Shutter D Control Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C77 relates to active grille air shutter d control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C79NOx Adsorber - Sulfur Limit ExceededCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C79 relates to nox adsorber - sulfur limit exceeded. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C7BTurbocharger Turbine Inlet Valve Control PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C7B relates to turbocharger turbine inlet valve control performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C7CTurbocharger Turbine Inlet Valve Supply Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C7C relates to turbocharger turbine inlet valve supply circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C7DTurbocharger Turbine Inlet Valve Motor Driver High CurrentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C7D relates to turbocharger turbine inlet valve motor driver high current. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C7ETurbocharger Turbine Inlet Valve Motor Driver OvertemperatureCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C7E relates to turbocharger turbine inlet valve motor driver overtemperature. Check the fault conditions and vehicle-specific procedure before replacing parts.