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.
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HOMESERVICE MANUALSHYUNDAI2003ACCENT BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXENGINE PERFORMANCE DTCS
2003 Hyundai Accent Base
Engine Performance DTCS
2003 Hyundai Accent BaseSECTION Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| P0106 | MAP Sensor Rationality |
| P0107 | MAP Sensor Range Check Low |
| P0108 | MAP Sensor Range Check High |
| P0111 | Intake Air Temperature Circuit Range/Performance |
| P0112 | Intake Air Temperature Circuit Low Input |
| P0113 | Intake Air Temperature Circuit High Input |
| P0116 | Engine Coolant Temperature Sensor Circuit Range/Performance |
| P0117 | Engine Coolant Temperature Sensor Circuit Low Input |
| P0118 | Engine Coolant Temperature Sensor Circuit High Input |
| P0121 | Throttle Position Sensor Circuit Range/Performance |
| P0122 | Throttle Position Sensor Circuit Low Input |
| P0123 | Throttle Position Sensor Circuit High Input |
| P0130 | O2 Sensor Circuit Malfunction (Bank 1/Sensor 1) |
| P0131 | O2 Sensor Circuit Low Input (Bank 1/Sensor 1) |
| P0132 | O2 Sensor Circuit High Input (Bank 1/Sensor 1) |
| P0133 | O2 Sensor Circuit Slow Response (Bank 1/Sensor 1) |
| P0134 | O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 1) |
| P0136 | O2 Sensor Circuit Malfunction (Bank 1/Sensor 2) |
| P0137 | O2 Sensor Circuit Low Input (Bank 1/Sensor 2) |
| P0138 | O2 Sensor Circuit High Input (Bank1/Sensor 2) |
| P0140 | O2 Sensor Range Circuit No Activity Detected (Bank 1/Sensor 2) |
| P0171 | Fuel Trim Malfunction - System Too Lean (Bank 1) |
| P0172 | Fuel Trim Malfunction - System Too Rich (Bank 1) |
| P0261 | Cylinder 1 - Injector Circuit Low |
| P0262 | Cylinder 1 - Injector Circuit High |
| P0264 | Cylinder 2 - Injector Circuit Low |
| P0265 | Cylinder 2 - Injector Circuit High |
| P0267 | Cylinder 3 - Injector Circuit Low |
| P0268 | Cylinder 3 - Injector Circuit High |
| P0270 | Cylinder 4 - Injector Circuit Low |
| P0271 | Cylinder 4 - Injector Circuit High |
| P0300 | Multiple Cylinder Misfire Detected |
| P0301 | Cylinder 1 - Misfire Detected |
| P0302 | Cylinder 2 - Misfire Detected |
| P0303 | Cylinder 3 - Misfire Detected |
| P0304 | Cylinder 4 - Misfire Detected |
| P0325 | Knock Sensor Circuit Malfunction |
| P0335 | Crankshaft Position Sensor Circuit Malfunction |
| P0336 | Crankshaft Position Sensor Range/Performance |
| P0340 | Camshaft Position Sensor Circuit Malfunction (Bank 1 Or Single Sensor) |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
| P0444 | Evaporative Emission Control System - Purge Control Valve Circuit Open |
| P0445 | Evaporative Emission Control System - Purge Control Valve Circuit Shorted |
| P0506 | Idle Control System - RPM Lower Than Expected |
| P0507 | Idle Control System - RPM Higher Than Expected |
| P1307 | Acceleration Sensor - Rationality |
| P1308 | Acceleration Sensor - Signal Check Low |
| P1309 | Acceleration Sensor - Signal Check High |
| P1505 | Idle Charge Actuator Signal Low Of Coil No. 1 |
| P1506 | Idle Charge Actuator Signal High Of Coil No. 1 |
| P1507 | Idle Charge Actuator Signal Low Of Coil No. 2 |
| P1508 | Idle Charge Actuator Signal High Of Coil No. 2 |
RENDER: 1.0x
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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.