Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSHYUNDAI2000SONATA BASE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SELF-DIAGNOSTICS - 2.4L
2000 Hyundai Sonata Base, Automatic
Engine Controls - Self-Diagnostics - 2.4L
2000 Hyundai Sonata Base, AutomaticSECTION Engine Controls - Self-Diagnostics - 2.4L
- Diagnostic Trouble Code (DTC) Identification
- Diagnostic Tests
- Notes
- DTC P0100: Mass Airflow (MAF) Sensor Circuit Malfunction
- DTC P0110: Intake Air Temperature (IAT) Sensor Circuit Malfunction
- DTC P0115: Engine Coolant Temperature (ECT) Sensor
- DTC P0120: Throttle Position (TP) Sensor
- DTC P0125: Excessive Time To Enter Closed Loop Fuel Control
- DTC P0130: Front Heated Oxygen Sensor (Ho2S) Circuit Malfunction
- DTC P0135: Front Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0136: Rear Heated Oxygen Sensor (Ho2S) Circuit Malfunction
- DTC P0141: Rear Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0201, P0202, P0203, P0204: Cylinders No. 1-4 Injector Circuit Malfunction
- DTC P0300: Random Misfire Detected
- DTC P0301, P0302, P0303, P0304: Cylinders No. 1-4 Misfire Detected
- DTC P0335: Crankshaft Position (CKP) Sensor Malfunction
- DTC P0340: Camshaft Position (CMP) Sensor Malfunction
- DTC P0400: EGR Flow Malfunction
- DTC P0403: EGR Solenoid Malfunction
- DTC P0421: Catalyst Efficiency Below Threshold
- DTC P0442: EVAP System Leak Detected
- DTC P0443: EVAP System Purge Control Solenoid Valve Circuit Malfunction
- DTC P0446: EVAP Vent Control Valve Malfunction
- DTC P0450: EVAP Fuel Tank Pressure Sensor Malfunction
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction
- DTC P0505: Idle Speed Control (ISC) Actuator Malfunction
- DTC P0510: Closed Throttle Position (Idle) Switch Malfunction
- DTC P1100: Manifold Pressure Sensor Circuit Malfunction
- DTC P1520: Generator Fr Terminal Circuit Malfunction
- DTC P1521: Power Steering Pressure (PSP) Switch Malfunction
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.