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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

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

Vehicle coverage

These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 217–240 of 9253

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C0015Right Front Outlet ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0015 concerns right front outlet control. Learn what this fault indicates and where to begin diagnosis.C0016Right Front Hydraulic Release Too LongCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0016 concerns right front hydraulic release too long. Learn what this fault indicates and where to begin diagnosis.C0018Left Rear Inlet ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0018 concerns left rear inlet control. Learn what this fault indicates and where to begin diagnosis.C0019Left Rear Outlet ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0019 concerns left rear outlet control. Learn what this fault indicates and where to begin diagnosis.C001ALeft Rear Hydraulic Release Too LongCheck soonChassis & Brakes45–120 minutes for initial diagnosisC001A concerns left rear hydraulic release too long. Learn what this fault indicates and where to begin diagnosis.C001CRight Rear Inlet ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC001C concerns right rear inlet control. Learn what this fault indicates and where to begin diagnosis.C001DRight Rear Outlet ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC001D concerns right rear outlet control. Learn what this fault indicates and where to begin diagnosis.C001ERight Rear Hydraulic Release Too LongCheck soonChassis & Brakes45–120 minutes for initial diagnosisC001E concerns right rear hydraulic release too long. Learn what this fault indicates and where to begin diagnosis.C0020ABS Pump Motor ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0020 concerns abs pump motor control. Learn what this fault indicates and where to begin diagnosis.C0021Brake Booster PerformanceUrgentChassis & Brakes45–120 minutes for initial diagnosisC0021 concerns brake booster performance. Learn what this fault indicates and where to begin diagnosis.C0022Brake Booster SolenoidUrgentChassis & Brakes45–120 minutes for initial diagnosisC0022 concerns brake booster solenoid. Learn what this fault indicates and where to begin diagnosis.C0023Stop Lamp ControlCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0023 concerns stop lamp control. Learn what this fault indicates and where to begin diagnosis.C0024Brake Pedal Feedback Pressure Solenoid CircuitUrgentChassis & Brakes45–120 minutes for initial diagnosisC0024 concerns brake pedal feedback pressure solenoid circuit. Learn what this fault indicates and where to begin diagnosis.C0025Brake Pedal Feedback Pressure Sensor CircuitUrgentChassis & Brakes45–120 minutes for initial diagnosisC0025 concerns brake pedal feedback pressure sensor circuit. Learn what this fault indicates and where to begin diagnosis.C0030Left Front Tone WheelCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0030 concerns left front tone wheel. Learn what this fault indicates and where to begin diagnosis.C0031Left Front Wheel Speed SensorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0031 concerns left front wheel speed sensor. Learn what this fault indicates and where to begin diagnosis.C0032Left Front Wheel Speed Sensor SupplyCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0032 concerns left front wheel speed sensor supply. Learn what this fault indicates and where to begin diagnosis.C0033Right Front Tone WheelCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0033 concerns right front tone wheel. Learn what this fault indicates and where to begin diagnosis.C0034Right Front Wheel Speed SensorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0034 concerns right front wheel speed sensor. Learn what this fault indicates and where to begin diagnosis.C0036Left Rear Tone WheelCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0036 concerns left rear tone wheel. Learn what this fault indicates and where to begin diagnosis.C0037Left Rear Wheel Speed SensorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0037 concerns left rear wheel speed sensor. Learn what this fault indicates and where to begin diagnosis.C0038Left Rear Wheel Speed Sensor SupplyCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0038 concerns left rear wheel speed sensor supply. Learn what this fault indicates and where to begin diagnosis.C0039Right Rear Tone WheelCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0039 concerns right rear tone wheel. Learn what this fault indicates and where to begin diagnosis.C003ARight Rear Wheel Speed SensorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC003A concerns right rear wheel speed sensor. Learn what this fault indicates and where to begin diagnosis.