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

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

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

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 265–288 of 1570

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P0AB6Engine Mount B Control Circuit/OpenCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB6 concerns engine mount b control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0AB7Engine Mount B Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB7 concerns engine mount b control circuit low. Learn what this fault indicates and where to begin diagnosis.P0AB8Engine Mount B Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB8 concerns engine mount b control circuit high. Learn what this fault indicates and where to begin diagnosis.P0AB9Hybrid/EV System PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB9 concerns hybrid/ev system performance. Learn what this fault indicates and where to begin diagnosis.P0AC4Hybrid/EV Powertrain Control Module Requested MIL IlluminationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AC4 concerns hybrid/ev powertrain control module requested mil illumination. Learn what this fault indicates and where to begin diagnosis.P0AC5Hybrid/EV Battery Temperature Sensor B CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AC5 concerns hybrid/ev battery temperature sensor b circuit. Learn what this fault indicates and where to begin diagnosis.P0AC6Hybrid/EV Battery Temperature Sensor B Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AC6 concerns hybrid/ev battery temperature sensor b circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0AC7Hybrid/EV Battery Temperature Sensor B Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AC7 concerns hybrid/ev battery temperature sensor b circuit low. Learn what this fault indicates and where to begin diagnosis.P0AC8Hybrid/EV Battery Temperature Sensor B Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AC8 concerns hybrid/ev battery temperature sensor b circuit high. Learn what this fault indicates and where to begin diagnosis.P0AC9Hybrid/EV Battery Temperature Sensor B Circuit Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AC9 concerns hybrid/ev battery temperature sensor b circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0ACAHybrid/EV Battery Temperature Sensor C CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ACA concerns hybrid/ev battery temperature sensor c circuit. Learn what this fault indicates and where to begin diagnosis.P0ACBHybrid/EV Battery Temperature Sensor C Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ACB concerns hybrid/ev battery temperature sensor c circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0ACCHybrid/EV Battery Temperature Sensor C Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ACC concerns hybrid/ev battery temperature sensor c circuit low. Learn what this fault indicates and where to begin diagnosis.P0ACDHybrid/EV Battery Temperature Sensor C Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ACD concerns hybrid/ev battery temperature sensor c circuit high. Learn what this fault indicates and where to begin diagnosis.P0ACEHybrid/EV Battery Temperature Sensor C Circuit Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ACE concerns hybrid/ev battery temperature sensor c circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0AD9Hybrid/EV Battery Positive Contactor Control Circuit/OpenCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AD9 concerns hybrid/ev battery positive contactor control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0ADAHybrid/EV Battery Positive Contactor Control Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ADA concerns hybrid/ev battery positive contactor control circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0ADBHybrid/EV Battery Positive Contactor Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ADB concerns hybrid/ev battery positive contactor control circuit low. Learn what this fault indicates and where to begin diagnosis.P0ADCHybrid/EV Battery Positive Contactor Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ADC concerns hybrid/ev battery positive contactor control circuit high. Learn what this fault indicates and where to begin diagnosis.P0ADDHybrid/EV Battery Negative Contactor Control Circuit/OpenCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ADD concerns hybrid/ev battery negative contactor control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0ADEHybrid/EV Battery Negative Contactor Control Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ADE concerns hybrid/ev battery negative contactor control circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0ADFHybrid/EV Battery Negative Contactor Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0ADF concerns hybrid/ev battery negative contactor control circuit low. Learn what this fault indicates and where to begin diagnosis.P0AE0Hybrid/EV Battery Negative Contactor Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AE0 concerns hybrid/ev battery negative contactor control circuit high. Learn what this fault indicates and where to begin diagnosis.P0AE1Hybrid/EV Battery Precharge Contactor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AE1 concerns hybrid/ev battery precharge contactor circuit. Learn what this fault indicates and where to begin diagnosis.