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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 4945–4968 of 7353

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P258CVacuum Pump Control Circuit A LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP258C relates to vacuum pump control circuit a low. Check the fault conditions and vehicle-specific procedure before replacing parts.P258DVacuum Pump Control Circuit A HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP258D relates to vacuum pump control circuit a high. Check the fault conditions and vehicle-specific procedure before replacing parts.P258EPTO Enable Switch PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP258E relates to pto enable switch performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P258FTorque Management Request Output SignalCheck soonSensors & Electronics30–120 minutes for initial diagnosisP258F relates to torque management request output signal. Check the fault conditions and vehicle-specific procedure before replacing parts.P2590Turbocharger Boost Control Position Sensor B Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2590 relates to turbocharger boost control position sensor b circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2591Cruise Control Front Distance Range Sensor LeftLow prioritySensors & Electronics30–120 minutes for initial diagnosisP2591 relates to cruise control front distance range sensor left. Check the fault conditions and vehicle-specific procedure before replacing parts.P2592Cruise Control Front Distance Range Sensor RightLow prioritySensors & Electronics30–120 minutes for initial diagnosisP2592 relates to cruise control front distance range sensor right. Check the fault conditions and vehicle-specific procedure before replacing parts.P2593Turbocharger Speed Sensor B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2593 relates to turbocharger speed sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2594Turbocharger Speed Sensor B Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2594 relates to turbocharger speed sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2595Turbocharger Speed Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2595 relates to turbocharger speed sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2596Turbocharger Speed Sensor B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2596 relates to turbocharger speed sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2597Turbocharger Speed Sensor B Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2597 relates to turbocharger speed sensor b circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P2598Turbocharger Boost Control Position Sensor A Performance - Stuck LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2598 relates to turbocharger boost control position sensor a performance - stuck low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2599Turbocharger Boost Control Position Sensor A Performance - Stuck HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2599 relates to turbocharger boost control position sensor a performance - stuck high. Check the fault conditions and vehicle-specific procedure before replacing parts.P259ATurbocharger Boost Control Position Sensor B Performance - Stuck LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP259A relates to turbocharger boost control position sensor b performance - stuck low. Check the fault conditions and vehicle-specific procedure before replacing parts.P259BTurbocharger Boost Control Position Sensor B Performance - Stuck HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP259B relates to turbocharger boost control position sensor b performance - stuck high. Check the fault conditions and vehicle-specific procedure before replacing parts.P259CExcessive Time To Enter Closed Loop Turbocharger A Boost ControlCheck soonSensors & Electronics30–120 minutes for initial diagnosisP259C relates to excessive time to enter closed loop turbocharger a boost control. Check the fault conditions and vehicle-specific procedure before replacing parts.P259DExcessive Time To Enter Closed Loop Turbocharger B Boost ControlCheck soonSensors & Electronics30–120 minutes for initial diagnosisP259D relates to excessive time to enter closed loop turbocharger b boost control. Check the fault conditions and vehicle-specific procedure before replacing parts.P259ETurbocharger A Boost Control Position At Low LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP259E relates to turbocharger a boost control position at low limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P259FTurbocharger A Boost Control Position At High LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP259F relates to turbocharger a boost control position at high limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P25A0Turbocharger B Boost Control Position At Low LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP25A0 relates to turbocharger b boost control position at low limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P25A1Turbocharger B Boost Control Position At High LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP25A1 relates to turbocharger b boost control position at high limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P25A2Brake System Control Module A Requested MIL IlluminationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP25A2 relates to brake system control module a requested mil illumination. Check the fault conditions and vehicle-specific procedure before replacing parts.P25A3Engine Hood OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP25A3 relates to engine hood open. Check the fault conditions and vehicle-specific procedure before replacing parts.