Diagnostic library
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Search the code from your scanner, then narrow the library by system, severity, or code family.
9,253 diagnostic guides
Find codes by symptomChoose what you notice to search matching code guides.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh 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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 457–480 of 2110
P0588Cruise Control Vent Control Circuit HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0589Cruise Control Multi-Function Input B CircuitLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0590Cruise Control Multi-Function Input B Circuit StuckLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0591Cruise Control Multi-Function Input B Circuit Range/PerformanceLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0592Cruise Control Multi-Function Input B Circuit LowLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0593Cruise Control Multi-Function Input B Circuit HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0594Cruise Control Servo Control Circuit/OpenLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0595Cruise Control Servo Control Circuit LowLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0596Cruise Control Servo Control Circuit HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP059AActive Grille Air Shutter A Position Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP059BActive Grille Air Shutter A Position Sensor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP059CActive Grille Air Shutter A Position Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP059DActive Grille Air Shutter A Position Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP059EActive Grille Air Shutter A Position Sensor Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP059FActive Grille Air Shutter A Performance/Stuck OffCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A0Active Grille Air Shutter A Stuck OnCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A1Active Grille Air Shutter A Position Sensor Minimum/Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A2Active Grille Air Shutter A Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A3Active Grille Air Shutter A Control Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A4Active Grille Air Shutter A Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A5Active Grille Air Shutter A Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05A9Active Grille Air Shutter B Position Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05AAActive Grille Air Shutter B Position Sensor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05ABActive Grille Air Shutter B Position Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosis