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 P · Powertrain 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 1465–1488 of 6682

Most searched first

P0745Pressure Control Solenoid ACheck soonTransmission Issues30–120 minutes for initial diagnosisP0745 relates to pressure control solenoid a. Check the fault conditions and vehicle-specific procedure before replacing parts.P0746Pressure Control Solenoid A Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP0746 relates to pressure control solenoid a performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P0747Pressure Control Solenoid A Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP0747 relates to pressure control solenoid a stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P0748Pressure Control Solenoid A ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP0748 relates to pressure control solenoid a electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P0749Pressure Control Solenoid A IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0749 relates to pressure control solenoid a intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P074AUnable To Engage Gear 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP074A relates to unable to engage gear 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P074BUnable To Engage Gear 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP074B relates to unable to engage gear 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P074CUnable To Engage Gear 4Check soonSensors & Electronics30–120 minutes for initial diagnosisP074C relates to unable to engage gear 4. Check the fault conditions and vehicle-specific procedure before replacing parts.P074DUnable To Engage Gear 5Check soonSensors & Electronics30–120 minutes for initial diagnosisP074D relates to unable to engage gear 5. Check the fault conditions and vehicle-specific procedure before replacing parts.P074EUnable To Engage Gear 6Check soonSensors & Electronics30–120 minutes for initial diagnosisP074E relates to unable to engage gear 6. Check the fault conditions and vehicle-specific procedure before replacing parts.P074FUnable To Engage Gear 7Check soonSensors & Electronics30–120 minutes for initial diagnosisP074F relates to unable to engage gear 7. Check the fault conditions and vehicle-specific procedure before replacing parts.P0751Shift Solenoid A Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP0751 relates to shift solenoid a performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P0752Shift Solenoid A Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP0752 relates to shift solenoid a stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P0753Shift Solenoid A ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP0753 relates to shift solenoid a electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P0754Shift Solenoid A IntermittentCheck soonTransmission Issues45–120 minutes for initial diagnosisP0754 means Shift Solenoid A Intermittent. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0755Shift Solenoid B MalfunctionCheck soonTransmission Issues45–120 minutes for initial diagnosisP0755 means Shift Solenoid B Malfunction. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P075AShift Solenoid GCheck soonTransmission Issues30–120 minutes for initial diagnosisP075A relates to shift solenoid g. Check the fault conditions and vehicle-specific procedure before replacing parts.P075BShift Solenoid G Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP075B relates to shift solenoid g performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P075CShift Solenoid G Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP075C relates to shift solenoid g stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P075DShift Solenoid G ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP075D relates to shift solenoid g electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P075EShift Solenoid G IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP075E relates to shift solenoid g intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P075FTransmission Fluid Level Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP075F relates to transmission fluid level too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0765Shift Solenoid D MalfunctionCheck soonTransmission Issues45–120 minutes for initial diagnosisP0765 means Shift Solenoid D Malfunction. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P076AShift Solenoid HCheck soonTransmission Issues30–120 minutes for initial diagnosisP076A relates to shift solenoid h. Check the fault conditions and vehicle-specific procedure before replacing parts.