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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 GL, 2D HATCHBACK, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMSELF-DIAGNOSTICSDIAGNOSTIC TROUBLE CODE DEFINITIONS
2003 Hyundai Accent GL, 2D Hatchback, Standard
Diagnostic Trouble Code Definitions
2003 Hyundai Accent GL, 2D Hatchback, StandardSECTION Diagnostic Trouble Code Definitions
NOTE:
Front Heated Oxygen Sensor (HO2S) may also be referred to as Bank 1/Sensor 1 (1/1) HO2S or O2 Sensor (Up). Rear HO2S may also be referred to as Bank 1/Sensor 2 (1/2) HO2S or O2 sensor (Down).
See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table, then go to appropriate diagnostic procedure under DIAGNOSTIC TESTS .
DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Description | ||||||
|---|---|---|---|---|---|---|---|
| P0030 (1) | O2 Sensor Heater - Heater Control Circuit (Bank 1/Sensor 1) | ||||||
| P0031 (1) | O2 Sensor Heater Circuit Low (Bank 1/Sensor 1) | ||||||
| P0032 (1) | O2 Sensor Heater Circuit High (Bank 1/Sensor 1) | ||||||
| P0036 (1) | O2 Sensor Heater - Heater Control Circuit (Bank 1/Sensor 2) | ||||||
| P0037 (1) | O2 Sensor Heater Circuit Low (Bank 1/Sensor 2) | ||||||
| P0038 (1) | O2 Sensor Heater Circuit High (Bank 1/Sensor 2) | ||||||
| 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 | ||||||
| P0128 (1) | Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) | ||||||
| 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) | ||||||
| P0230 (1) | Fuel Pump Circuit Malfunction | ||||||
| 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 (2) | Multiple Cylinder Misfire Detected | ||||||
| P0301 (2) | Cylinder 1 - Misfire Detected | ||||||
| P0302 (2) | Cylinder 2 - Misfire Detected | ||||||
| P0303 (2) | Cylinder 3 - Misfire Detected | ||||||
| P0304 (2) | Cylinder 4 - Misfire Detected | ||||||
| P0325 (3) | 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 | ||||||
| P0461 (1) | Fuel Level Sensor Circuit Range/Performance | ||||||
| P0462 (1) | Fuel Level Sensor Circuit Low Input | ||||||
| P0463 (1) | Fuel Level Sensor Circuit High Input | ||||||
| P0501 (1) | Vehicle Speed Sensor Range/Performance | ||||||
| P0506 | Idle Control System - RPM Lower Than Expected | ||||||
| P0507 | Idle Control System - RPM Higher Than Expected | ||||||
| P0562 (1) | System Voltage Low | ||||||
| P0563 (1) | System Voltage High | ||||||
| P0605 (1) | Internal Control Module Read Only Memory Error | ||||||
| P0650 | Malfunction Indicator Light Control Circuit Malfunction | ||||||
| P1307 | Acceleration Sensor - Rationality | ||||||
| P1308 | Acceleration Sensor - Signal Check Low | ||||||
| P1309 | Acceleration Sensor - Signal Check High | ||||||
| P1401 (1) | Diagnostic Module Tank Leakage Malfunction | ||||||
| P1402 (1) | Power Stage (Diagnostic Module Tank Leakage Motor) | ||||||
| P1403 (1) | Power Stage (Diagnostic Module Tank Leakage Valve) | ||||||
| P1404 (1) | Diagnostic Module Tank Leakage Heater | ||||||
| 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 | ||||||
| P1586 (1)(3) | AT/MT Encoding Error | ||||||
| P1690 (1)(3) | Smart Remote Arming Error (Immobilizer) | ||||||
| P1691 (1)(3) | Antenna Error (Immobilizer) | ||||||
| P1693 (1)(3) | Transponder Error (Immobilizer) | ||||||
| P1694 (1)(3) | ECU Error (Immobilizer) | ||||||
| P1695 (1)(3) | EEPROM Error (Immobilizer) | ||||||
|
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RENDER: 1.0x
NO RELATED
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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.