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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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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 6073–6096 of 7353

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P2B0BCold Start Cylinder 4 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0B relates to cold start cylinder 4 injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B0CCold Start Cylinder 5 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0C relates to cold start cylinder 5 injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B0DCold Start Cylinder 6 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0D relates to cold start cylinder 6 injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B0ECold Start Cylinder 7 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0E relates to cold start cylinder 7 injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B0FCold Start Cylinder 8 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0F relates to cold start cylinder 8 injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B10Cylinder 1 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B10 relates to cylinder 1 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B11Cylinder 1 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B11 relates to cylinder 1 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B12Cylinder 2 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B12 relates to cylinder 2 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B13Cylinder 2 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B13 relates to cylinder 2 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B14Cylinder 3 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B14 relates to cylinder 3 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B15Cylinder 3 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B15 relates to cylinder 3 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B16Cylinder 4 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B16 relates to cylinder 4 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B17Cylinder 4 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B17 relates to cylinder 4 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B18Cylinder 5 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B18 relates to cylinder 5 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B19Cylinder 5 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B19 relates to cylinder 5 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B1ACylinder 6 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B1A relates to cylinder 6 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B1BCylinder 6 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B1B relates to cylinder 6 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B1CCylinder 7 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B1C relates to cylinder 7 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B1DCylinder 7 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B1D relates to cylinder 7 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B1ECylinder 8 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B1E relates to cylinder 8 injection pulse offset not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B1FCylinder 8 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B1F relates to cylinder 8 injection pulse offset exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B20Hybrid/EV Electronics Coolant Temperature Sensor B CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2B20 relates to hybrid/ev electronics coolant temperature sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B21Hybrid/EV Electronics Coolant Temperature Sensor B Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2B21 relates to hybrid/ev electronics coolant temperature sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B22Hybrid/EV Electronics Coolant Temperature Sensor B Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2B22 relates to hybrid/ev electronics coolant temperature sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.