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.
2001 Hyundai Accent GL, AutomaticFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Definitions
See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table, then go to appropriate diagnostic procedure under DIAGNOSTIC TESTS .
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| P0102 (1) | Mass Airflow (MAF) Circuit Input Low (1.5L) | ||||||||||
| P0103 (1) | Mass Airflow (MAF) Circuit Input High (1.5L) | ||||||||||
| P0106 (2) | Manifold Absolute Pressure (MAP) Sensor Malfunction (1.6L) | ||||||||||
| P0107 (2) | Manifold Absolute Pressure (MAP) Sensor Range Low (1.6L) | ||||||||||
| P0108 (2) | Manifold Absolute Pressure (MAP) Sensor Range High (1.6L) | ||||||||||
| P0111 | Intake Air Temperature (IAT) Sensor Malfunction (1.5L) | ||||||||||
| P0111 (3) | Intake Air Temperature (IAT) Sensor Malfunction (1.6L) | ||||||||||
| P0112 | Intake Air Temperature (IAT) Circuit Input Low (1.5L) | ||||||||||
| P0112 (3) | Intake Air Temperature (IAT) Circuit Input Low (1.6L) | ||||||||||
| P0113 | Intake Air Temperature (IAT) Circuit Input High (1.5L) | ||||||||||
| P0113 (3) | Intake Air Temperature (IAT) Circuit Input High (1.6L) | ||||||||||
| P0116 | Engine Coolant Temperature (ECT) Sensor Range | ||||||||||
| P0117 | Engine Coolant Temperature (ECT) Sensor Input Low | ||||||||||
| P0118 | Engine Coolant Temperature (ECT) Sensor Input High | ||||||||||
| P0121 | Throttle Position (TP) Sensor Range (1.5L) | ||||||||||
| P0121 (3) | Throttle Position (TP) Sensor Range (1.6L) | ||||||||||
| P0122 | Throttle Position (TP) Sensor Input Low (1.5L) | ||||||||||
| P0122 (3) | Throttle Position (TP) Sensor Input Low (1.6L) | ||||||||||
| P0123 | Throttle Position (TP) Sensor Input High (1.5L) | ||||||||||
| P0123 (3) | Throttle Position (TP) Sensor Input High (1.6L) | ||||||||||
| P0128 (3) | Thermostat Malfunction | ||||||||||
| P0130 | Front Heated Oxygen Sensor Circuit Malfunction | ||||||||||
| P0131 | Front Heated Oxygen Sensor Circuit Voltage Low | ||||||||||
| P0132 | Front Heated Oxygen Sensor Circuit Voltage High | ||||||||||
| P0133 | Front Heated Oxygen Sensor Circuit Slow Response | ||||||||||
| P0134 | Front Heated Oxygen Sensor Circuit No Activity Detected | ||||||||||
| P0135 | Front Heated Oxygen Sensor Heater Circuit Malfunction | ||||||||||
| P0136 | Rear Heated Oxygen Sensor Circuit Malfunction | ||||||||||
| P0137 | Rear Heated Oxygen Sensor Circuit Voltage Low | ||||||||||
| P0138 | Rear Heated Oxygen Sensor Circuit Voltage High | ||||||||||
| P0141 | Rear Heated Oxygen Sensor Heater Circuit Malfunction | ||||||||||
| P0201 | Injector No. 1 Circuit Malfunction | ||||||||||
| P0202 | Injector No. 2 Circuit Malfunction | ||||||||||
| P0203 | Injector No. 3 Circuit Malfunction | ||||||||||
| P0204 | Injector No. 4 Circuit Malfunction | ||||||||||
| P0230 (3)(4) | Fuel Pump Relay Malfunction | ||||||||||
| P0300 (5) | Random Misfire Detected | ||||||||||
| P0301 (5) | Cylinder No. 1 Misfire Detected | ||||||||||
| P0302 (5) | Cylinder No. 2 Misfire Detected | ||||||||||
| P0303 (5) | Cylinder No. 3 Misfire Detected | ||||||||||
| P0304 (5) | Cylinder No. 4 Misfire Detected | ||||||||||
| P0326 (4) | Knock Sensor Range | ||||||||||
| P0335 | Crankshaft Position (CKP) Sensor Malfunction | ||||||||||
| P0336 | Crankshaft Position (CKP) Sensor Range Random | ||||||||||
| P0342 | Camshaft Position (CMP) Sensor Input Low | ||||||||||
| P0343 | Camshaft Position (CMP) Sensor Input High | ||||||||||
| P0422 | Catalytic Converter Efficiency Below Threshold | ||||||||||
| P0441 | Evaporative Emission (EVAP) System Incorrect Purge Flow | ||||||||||
| P0442 | Evaporative Emission (EVAP) System Small Leak Detected | ||||||||||
| P0444 | Purge Control Valve Circuit Open | ||||||||||
| P0445 | Purge Control Valve Circuit Shorted | ||||||||||
| P0455 | Evaporative Emission (EVAP) System Large Leak Detected | ||||||||||
| P0460 (3)(4) | Fuel Level Signal Malfunction | ||||||||||
| P0501 | Vehicle Speed Sensor (VSS) Range | ||||||||||
| P0506 | Idle RPM Lower Than Expected | ||||||||||
| P0507 | Idle RPM Higher Than Expected | ||||||||||
| P0562 | System Voltage Low | ||||||||||
| P0563 | System Voltage High | ||||||||||
| P0606 (3) | Internal Control Module ROM Error | ||||||||||
| P1123 | Long Term Fuel Trim Additive Air Too Rich | ||||||||||
| P1124 | Long Term Fuel Trim Additive Air Too Lean | ||||||||||
| P1127 | Long Term Fuel Trim Multiplicative Too Rich | ||||||||||
| P1128 | Long Term Fuel Trim Multiplicative Too Lean | ||||||||||
| P1401 | Diagnostic Module-Tank Leakage (DM-TL) System Malfunction | ||||||||||
| P1402 | Diagnostic Module-Tank Leakage (DM-TL) Motor Malfunction | ||||||||||
| P1403 | Diagnostic Module-Tank Leakage (DM-TL) Valve Malfunction | ||||||||||
| P1404 (3) | Heater Circuit Malfunction | ||||||||||
| P1510 | Idle Control Valve Opening Coil Circuit Shorted | ||||||||||
| P1513 | Idle Control Valve Opening Coil Circuit Open | ||||||||||
| P1529 (3) | Transmission Control Module (TCM) Error-Invalid Message | ||||||||||
| P1552 | Idle Control Valve Closing Coil Circuit Shorted | ||||||||||
| P1553 | Idle Control Valve Closing Coil Circuit Open | ||||||||||
| P1586 | Transmission Encoding Signal Not Rational | ||||||||||
| P1605 | Acceleration Sensor Circuit Malfunction | ||||||||||
| P1606 | Acceleration Sensor Signal Not Rational | ||||||||||
| P1611 | Malfunction Indicator Light (MIL) Request Signal Circuit Input Low | ||||||||||
| P1613 | Malfunction Indicator Light (MIL) Request Signal Circuit Input High | ||||||||||
| P1765 (1)(3)(4) | Torque Reduction Malfunction | ||||||||||
|
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Factory Service Tools
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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.