P25xx

200 generic powertrain codes in the P25xx range.Engine, transmission, fuel, ignition and emissions control.

0 of these have been through editorial review and carry full diagnostic guidance.

Codes in this range

P2500Generator Lamp/L-Terminal Circuit LowSeverity level 3 of 5: Diagnose soon.
P2501Generator Lamp/L-Terminal Circuit HighSeverity level 3 of 5: Diagnose soon.
P2502Charging System VoltageSeverity level 3 of 5: Diagnose soon.
P2503Charging System Voltage LowSeverity level 3 of 5: Diagnose soon.
P2504Charging System Voltage HighSeverity level 3 of 5: Diagnose soon.
P2505ECM/PCM Power Input SignalSeverity level 3 of 5: Diagnose soon.
P2506ECM/PCM Power Input Signal Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2507ECM/PCM Power Input Signal LowSeverity level 3 of 5: Diagnose soon.
P2508ECM/PCM Power Input Signal HighSeverity level 3 of 5: Diagnose soon.
P2509ECM/PCM Power Input Signal IntermittentSeverity level 3 of 5: Diagnose soon.
P250AEngine Oil Level Sensor CircuitSeverity level 2 of 5: Not urgent.
P250BEngine Oil Level Sensor Circuit Range/PerformanceSeverity level 2 of 5: Not urgent.
P250CEngine Oil Level Sensor Circuit LowSeverity level 2 of 5: Not urgent.
P250DEngine Oil Level Sensor Circuit HighSeverity level 2 of 5: Not urgent.
P250EEngine Oil Level Sensor Circuit Intermittent/ErraticSeverity level 2 of 5: Not urgent.
P250FEngine Oil Level Too LowSeverity level 3 of 5: Diagnose soon.
P2510ECM/PCM Power Relay Sense Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2511ECM/PCM Power Relay Sense Circuit IntermittentSeverity level 3 of 5: Diagnose soon.
P2512Event Data Recorder Request Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P2513Event Data Recorder Request Circuit LowSeverity level 3 of 5: Diagnose soon.
P2514Event Data Recorder Request Circuit HighSeverity level 3 of 5: Diagnose soon.
P2515A/C Refrigerant Pressure Sensor B CircuitSeverity level 3 of 5: Diagnose soon.
P2516A/C Refrigerant Pressure Sensor B Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2517A/C Refrigerant Pressure Sensor B Circuit LowSeverity level 3 of 5: Diagnose soon.
P2518A/C Refrigerant Pressure Sensor B Circuit HighSeverity level 3 of 5: Diagnose soon.
P2519A/C Request A CircuitSeverity level 3 of 5: Diagnose soon.
P251APTO Enable Switch Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P251BPTO Enable Switch Circuit LowSeverity level 3 of 5: Diagnose soon.
P251CPTO Enable Switch Circuit HighSeverity level 3 of 5: Diagnose soon.
P251DPTO Engine Shutdown Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P251EPTO Engine Shutdown Circuit LowSeverity level 3 of 5: Diagnose soon.
P251FPTO Engine Shutdown Circuit HighSeverity level 3 of 5: Diagnose soon.
P2520A/C Request A Circuit LowSeverity level 3 of 5: Diagnose soon.
P2521A/C Request A Circuit HighSeverity level 3 of 5: Diagnose soon.
P2522A/C Request B CircuitSeverity level 3 of 5: Diagnose soon.
P2523A/C Request B Circuit LowSeverity level 3 of 5: Diagnose soon.
P2524A/C Request B Circuit HighSeverity level 3 of 5: Diagnose soon.
P2525Vacuum Reservoir Pressure Sensor CircuitSeverity level 3 of 5: Diagnose soon.
P2526Vacuum Reservoir Pressure Sensor Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2527Vacuum Reservoir Pressure Sensor Circuit LowSeverity level 3 of 5: Diagnose soon.
P2528Vacuum Reservoir Pressure Sensor Circuit HighSeverity level 3 of 5: Diagnose soon.
P2529Vacuum Reservoir Pressure Sensor Circuit IntermittentSeverity level 3 of 5: Diagnose soon.
P252AEngine Oil Quality Sensor CircuitSeverity level 2 of 5: Not urgent.
P252BEngine Oil Quality Sensor Circuit Range/PerformanceSeverity level 2 of 5: Not urgent.
P252CEngine Oil Quality Sensor Circuit LowSeverity level 2 of 5: Not urgent.
P252DEngine Oil Quality Sensor Circuit HighSeverity level 2 of 5: Not urgent.
P252EEngine Oil Quality Sensor Circuit Intermittent/ErraticSeverity level 2 of 5: Not urgent.
P252FEngine Oil Level Too HighSeverity level 3 of 5: Diagnose soon.
P2530Ignition Switch Run Position CircuitSeverity level 3 of 5: Diagnose soon.
P2531Ignition Switch Run Position Circuit LowSeverity level 3 of 5: Diagnose soon.
P2532Ignition Switch Run Position Circuit HighSeverity level 3 of 5: Diagnose soon.
P2533Ignition Switch On/Start Position CircuitSeverity level 3 of 5: Diagnose soon.
P2534Ignition Switch On/Start Position Circuit LowSeverity level 3 of 5: Diagnose soon.
P2535Ignition Switch On/Start Position Circuit HighSeverity level 3 of 5: Diagnose soon.
P2536Ignition Switch Accessory Position CircuitSeverity level 3 of 5: Diagnose soon.
P2537Ignition Switch Accessory Position Circuit LowSeverity level 3 of 5: Diagnose soon.
P2538Ignition Switch Accessory Position Circuit HighSeverity level 3 of 5: Diagnose soon.
P2539Low Pressure Fuel System Sensor CircuitSeverity level 3 of 5: Diagnose soon.
P253APTO Sense Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P253BPTO Sense Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P253CPTO Sense Circuit LowSeverity level 3 of 5: Diagnose soon.
P253DPTO Sense Circuit HighSeverity level 3 of 5: Diagnose soon.
P253EPTO Sense Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P253FEngine Oil DeterioratedSeverity level 3 of 5: Diagnose soon.
P2540Low Pressure Fuel System Sensor CircuitSeverity level 3 of 5: Diagnose soon.
P2541Low Pressure Fuel System Sensor Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2542Low Pressure Fuel System Sensor Circuit HighSeverity level 3 of 5: Diagnose soon.
P2543Power Demand Signal CircuitSeverity level 3 of 5: Diagnose soon.
P2544Torque Management Request Input Signal ASeverity level 4 of 5: Get it looked at now.
P2545Torque Management Request Input Signal A Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2546Torque Management Request Input Signal A LowSeverity level 3 of 5: Diagnose soon.
P2547Torque Management Request Input Signal A HighSeverity level 3 of 5: Diagnose soon.
P2548Torque Management Request Input Signal BSeverity level 3 of 5: Diagnose soon.
P2549Torque Management Request Input Signal B Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P254APTO Speed Selector Sensor/Switch 1 Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P254BPTO Speed Selector Sensor/Switch 1 Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P254CPTO Speed Selector Sensor/Switch 1 Circuit LowSeverity level 3 of 5: Diagnose soon.
P254DPTO Speed Selector Sensor/Switch 1 Circuit HighSeverity level 3 of 5: Diagnose soon.
P254EPTO Speed Selector Sensor/Switch 1 Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P254FEngine Hood Switch CircuitSeverity level 2 of 5: Not urgent.
P2550Torque Management Request Input Signal B LowSeverity level 3 of 5: Diagnose soon.
P2551Torque Management Request Input Signal B HighSeverity level 3 of 5: Diagnose soon.
P2552Throttle/Fuel Inhibit A CircuitSeverity level 3 of 5: Diagnose soon.
P2553Throttle/Fuel Inhibit A Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2554Throttle/Fuel Inhibit A Circuit LowSeverity level 3 of 5: Diagnose soon.
P2555Throttle/Fuel Inhibit A Circuit HighSeverity level 3 of 5: Diagnose soon.
P2556Engine Coolant Level Sensor/Switch CircuitSeverity level 3 of 5: Diagnose soon.
P2557Engine Coolant Level Sensor/Switch Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2558Engine Coolant Level Sensor/Switch Circuit LowSeverity level 3 of 5: Diagnose soon.
P2559Engine Coolant Level Sensor/Switch Circuit HighSeverity level 3 of 5: Diagnose soon.
P255APTO Speed Selector Sensor/Switch 2 Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P255BPTO Speed Selector Sensor/Switch 2 Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P255CPTO Speed Selector Sensor/Switch 2 Circuit LowSeverity level 3 of 5: Diagnose soon.
P255DPTO Speed Selector Sensor/Switch 2 Circuit HighSeverity level 3 of 5: Diagnose soon.
P255EPTO Speed Selector Sensor/Switch 2 Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P255FA/C Request A Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2560Engine Coolant Level LowSeverity level 3 of 5: Diagnose soon.
P2561A/C Control Module Requested MIL IlluminationSeverity level 3 of 5: Diagnose soon.
P2562Turbocharger Boost Control Position Sensor A CircuitSeverity level 3 of 5: Diagnose soon.
P2563Turbocharger Boost Control Position Sensor CircuitSeverity level 4 of 5: Get it looked at now.
P2564Turbocharger Boost Control Position Sensor A Circuit LowSeverity level 3 of 5: Diagnose soon.
P2565Turbocharger Boost Control Position Sensor A Circuit HighSeverity level 3 of 5: Diagnose soon.
P2566Turbocharger Boost Control Position Sensor Range/PerformanceSeverity level 4 of 5: Get it looked at now.
P2567Turbocharger Boost Control Position Sensor Circuit LowSeverity level 4 of 5: Get it looked at now.
P2568Turbocharger Boost Control Position Sensor Circuit HighSeverity level 4 of 5: Get it looked at now.
P2569Direct Ozone Reduction Catalyst Temperature Sensor Circuit LowSeverity level 3 of 5: Diagnose soon.
P256AEngine Idle Speed Selector Sensor/Switch Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P256BEngine Idle Speed Selector Sensor/Switch Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P256CEngine Idle Speed Selector Sensor/Switch Circuit LowSeverity level 3 of 5: Diagnose soon.
P256DEngine Idle Speed Selector Sensor/Switch Circuit HighSeverity level 3 of 5: Diagnose soon.
P256EEngine Idle Speed Selector Sensor/Switch Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P256FA/C Request B Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2570Direct Ozone Reduction Catalyst Temperature Sensor Circuit HighSeverity level 3 of 5: Diagnose soon.
P2571Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P2572Direct Ozone Reduction Catalyst Deterioration Sensor CircuitSeverity level 3 of 5: Diagnose soon.
P2573Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2574Direct Ozone Reduction Catalyst Deterioration Sensor Circuit LowSeverity level 3 of 5: Diagnose soon.
P2575Direct Ozone Reduction Catalyst Deterioration Sensor Circuit HighSeverity level 3 of 5: Diagnose soon.
P2576Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P2577Direct Ozone Reduction Catalyst Efficiency Below ThresholdSeverity level 3 of 5: Diagnose soon.
P2578Turbocharger/Supercharger Speed Sensor A CircuitSeverity level 3 of 5: Diagnose soon.
P2579Turbocharger/Supercharger Speed Sensor A Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P257AVacuum Reservoir Control Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P257BVacuum Reservoir Control Circuit LowSeverity level 3 of 5: Diagnose soon.
P257CVacuum Reservoir Control Circuit HighSeverity level 3 of 5: Diagnose soon.
P257DEngine Hood Switch Circuit Range/PerformanceSeverity level 2 of 5: Not urgent.
P257EEngine Hood Switch Circuit LowSeverity level 2 of 5: Not urgent.
P257FEngine Hood Switch Circuit HighSeverity level 2 of 5: Not urgent.
P2580Turbocharger/Supercharger Speed Sensor A Circuit LowSeverity level 3 of 5: Diagnose soon.
P2581Turbocharger/Supercharger Speed Sensor A Circuit HighSeverity level 3 of 5: Diagnose soon.
P2582Turbocharger/Supercharger Speed Sensor A Circuit IntermittentSeverity level 3 of 5: Diagnose soon.
P2583Cruise Control Front Distance Range Sensor Single Sensor or CenterSeverity level 3 of 5: Diagnose soon.
P2584Fuel Additive Control Module Requested MIL IlluminationSeverity level 3 of 5: Diagnose soon.
P2585Fuel Additive Control Module Warning Lamp RequestSeverity level 2 of 5: Not urgent.
P2586Turbocharger Boost Control Position Sensor B CircuitSeverity level 3 of 5: Diagnose soon.
P2587Turbocharger Boost Control Position Sensor B Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2588Turbocharger Boost Control Position Sensor B Circuit LowSeverity level 3 of 5: Diagnose soon.
P2589Turbocharger Boost Control Position Sensor B Circuit HighSeverity level 3 of 5: Diagnose soon.
P258AVacuum Pump Control Circuit A/OpenSeverity level 3 of 5: Diagnose soon.
P258BVacuum Pump Control Circuit A Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P258CVacuum Pump Control Circuit A LowSeverity level 3 of 5: Diagnose soon.
P258DVacuum Pump Control Circuit A HighSeverity level 3 of 5: Diagnose soon.
P258EPTO Enable Switch PerformanceSeverity level 3 of 5: Diagnose soon.
P258FTorque Management Request Output SignalSeverity level 3 of 5: Diagnose soon.
P2590Turbocharger Boost Control Position Sensor B Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P2591Cruise Control Front Distance Range Sensor LeftSeverity level 3 of 5: Diagnose soon.
P2592Cruise Control Front Distance Range Sensor RightSeverity level 3 of 5: Diagnose soon.
P2593Turbocharger Speed Sensor B CircuitSeverity level 3 of 5: Diagnose soon.
P2594Turbocharger Speed Sensor B Circuit Range/PerformanceSeverity level 3 of 5: Diagnose soon.
P2595Turbocharger Speed Sensor B Circuit LowSeverity level 3 of 5: Diagnose soon.
P2596Turbocharger Speed Sensor B Circuit HighSeverity level 3 of 5: Diagnose soon.
P2597Turbocharger Speed Sensor B Circuit IntermittentSeverity level 3 of 5: Diagnose soon.
P2598Turbocharger Boost Control Position Sensor A Performance - Stuck LowSeverity level 3 of 5: Diagnose soon.
P2599Turbocharger Boost Control Position Sensor A Performance - Stuck HighSeverity level 3 of 5: Diagnose soon.
P259ATurbocharger Boost Control Position Sensor B Performance - Stuck LowSeverity level 3 of 5: Diagnose soon.
P259BTurbocharger Boost Control Position Sensor B Performance - Stuck HighSeverity level 3 of 5: Diagnose soon.
P259CExcessive Time To Enter Closed Loop Turbocharger A Boost ControlSeverity level 3 of 5: Diagnose soon.
P259DExcessive Time To Enter Closed Loop Turbocharger B Boost ControlSeverity level 3 of 5: Diagnose soon.
P259ETurbocharger A Boost Control Position At Low LimitSeverity level 3 of 5: Diagnose soon.
P259FTurbocharger A Boost Control Position At High LimitSeverity level 3 of 5: Diagnose soon.
P25A0Turbocharger B Boost Control Position At Low LimitSeverity level 3 of 5: Diagnose soon.
P25A1Turbocharger B Boost Control Position At High LimitSeverity level 3 of 5: Diagnose soon.
P25A2Brake System Control Module A Requested MIL IlluminationSeverity level 5 of 5: Stop driving.
P25A3Engine Hood OpenSeverity level 2 of 5: Not urgent.
P25A4Fuel Mode Select Switch CircuitSeverity level 3 of 5: Diagnose soon.
P25A5Fuel Mode Select Switch PerformanceSeverity level 3 of 5: Diagnose soon.
P25A6Fuel Mode Select Switch Circuit LowSeverity level 3 of 5: Diagnose soon.
P25A7Fuel Mode Select Switch Circuit HighSeverity level 3 of 5: Diagnose soon.
P25A8Fuel Mode Select Switch Circuit Intermittent/ErraticSeverity level 3 of 5: Diagnose soon.
P25A9Piston Cooling Oil Control Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P25AAPiston Cooling Oil Control Circuit LowSeverity level 3 of 5: Diagnose soon.
P25ABPiston Cooling Oil Control Circuit HighSeverity level 3 of 5: Diagnose soon.
P25ACPiston Cooling Oil Control Circuit Performance/Stuck OffSeverity level 3 of 5: Diagnose soon.
P25ADPiston Cooling Oil Control Circuit Stuck OnSeverity level 3 of 5: Diagnose soon.
P25AEPiston Cooling Oil Pressure Too LowSeverity level 5 of 5: Stop driving.
P25AFCoolant Temperature Control Module Requested MIL IlluminationSeverity level 3 of 5: Diagnose soon.
P25B0Fuel Level Sensor A StuckSeverity level 3 of 5: Diagnose soon.
P25B1Fuel Level Sensor B StuckSeverity level 3 of 5: Diagnose soon.
P25B2Fuel Level Sensor A or B StuckSeverity level 3 of 5: Diagnose soon.
P25B3Turbocharger/Supercharger Wastegate A Stuck OpenSeverity level 3 of 5: Diagnose soon.
P25B4Turbocharger/Supercharger Wastegate A Stuck ClosedSeverity level 3 of 5: Diagnose soon.
P25B5Turbocharger/Supercharger Wastegate B Stuck OpenSeverity level 3 of 5: Diagnose soon.
P25B6Turbocharger/Supercharger Wastegate B Stuck ClosedSeverity level 3 of 5: Diagnose soon.
P25B7Auxiliary Ignition Switch On/Start Position CircuitSeverity level 3 of 5: Diagnose soon.
P25B8Auxiliary Ignition Switch On/Start Position Circuit LowSeverity level 3 of 5: Diagnose soon.
P25B9Auxiliary Ignition Switch On/Start Position Circuit HighSeverity level 3 of 5: Diagnose soon.
P25BARegeneration Control Switch Circuit/OpenSeverity level 3 of 5: Diagnose soon.
P25BBRegeneration Control Switch Circuit LowSeverity level 3 of 5: Diagnose soon.
P25BCRegeneration Control Switch Circuit HighSeverity level 3 of 5: Diagnose soon.
P25BDUnmetered Fuel - Forced Engine ShutdownSeverity level 3 of 5: Diagnose soon.
P25BEAlternative Fuel Disable Control Circuit / OpenSeverity level 3 of 5: Diagnose soon.
P25BFAlternative Fuel Disable Control Circuit HighSeverity level 3 of 5: Diagnose soon.
P25C0Alternative Fuel Disable Control Circuit LowSeverity level 3 of 5: Diagnose soon.
P25C1Alternative Fuel Disable Signal CircuitSeverity level 3 of 5: Diagnose soon.
P25C2Alternative Fuel Disable Signal Circuit HighSeverity level 3 of 5: Diagnose soon.
P25C3Alternative Fuel Disable Signal Circuit LowSeverity level 3 of 5: Diagnose soon.
P25C4Brake Booster Temperature Sensor A CircuitSeverity level 4 of 5: Get it looked at now.
P25C5Brake Booster Temperature Sensor A Circuit Range/PerformanceSeverity level 4 of 5: Get it looked at now.
P25C6Brake Booster Temperature Sensor A Circuit LowSeverity level 4 of 5: Get it looked at now.
P25C7Brake Booster Temperature Sensor A Circuit HighSeverity level 4 of 5: Get it looked at now.