Diagnostic Trouble Code Definitions

See DTC IDENTIFICATION (ACCENT, ELANTRA & TIBURON) or DTC IDENTIFICATION (SONATA) table or refer to appropriate DTC IDENTIFICATION table in appropriate SELF-DIAGNOSTICS article. Once DTC has been identified, proceed to appropriate diagnostic procedure in appropriate SELF-DIAGNOSTICS article. Repair condition which set DTC(s), beginning with lowest number first, then in ascending order.

NOTE: Not all codes apply to all models.

DTC IDENTIFICATION (ACCENT, ELANTRA & TIBURON)

Code

Probable Cause

P0102

Mass Airflow (MAF) Circuit Input Low

P0103

Mass Airflow (MAF) Circuit Input High

P0112

Intake Air Temperature (IAT) Circuit Input Low

P0113

Intake Air Temperature (IAT) Circuit Input High

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

P0122

Throttle Position (TP) Sensor Input Low

P0123

Throttle Position (TP) Sensor Input High

P0128 ⁽¹⁾

Thermostat Malfunction

P0130

HO2S Circuit Malfunction (Front)

P0131

HO2S Circuit Voltage Low (Front)

P0132

HO2S Circuit Voltage High (Front)

P0133

HO2S Circuit Slow Response (Front)

P0134

HO2S Circuit No Activity (Front)

P0135

HO2S Heater Circuit Malfunction (Front)

P0136

HO2S Circuit Malfunction (Rear)

P0137

HO2S Circuit Voltage Low (Rear)

P0138

HO2S Circuit Voltage High (Rear)

P0141

HO2S Heater Circuit Malfunction (Rear)

P0201

Injector No. 1 Circuit Malfunction

P0202

Injector No. 2 Circuit Malfunction

P0203

Injector No. 3 Circuit Malfunction

P0204

Injector No. 4 Circuit Malfunction

P0300

Random Misfire Detected

P0301

Cylinder No. 1 Misfire Detected

P0302

Cylinder No. 2 Misfire Detected

P0303

Cylinder No. 3 Misfire Detected

P0304

Cylinder No. 4 Misfire Detected

P0326

Knock Sensor Range

P0335

Crankshaft Position (CKP) Sensor Malfunction

P0336

Crankshaft Position (CKP) Sensor Range

P0342

Camshaft Position (CMP) Sensor Input Low

P0343

Camshaft Position (CMP) Sensor Input High

P0422

Main Catalyst Efficiency Below Threshold

P0441

EVAP Purge Valve Permanently Open

P0442

EVAP System Leak Detected

P0443 ⁽²⁾

EVAP System Purge Control Valve Circuit Malfunction

P0444

EVAP System Purge Control Valve Circuit Open

P0445

EVAP System Purge Control Valve Circuit Shorted

P0446 ⁽²⁾

EVAP Vent Control Valve Malfunction

P0447 ⁽²⁾

EVAP Vent Valve Short To Ground

P0448 ⁽²⁾

EVAP Vent Valve Short To Voltage

P0451 ⁽²⁾

Fuel Tank Pressure Sensor Signal Not Plausible

P0452 ⁽²⁾

Fuel Tank Pressure Sensor Signal Low

P0453 ⁽²⁾

Fuel Tank Pressure Sensor Signal High

P0455

EVAP System Incorrect Purge Flow

P0501

Vehicle Speed Sensor (VSS) Range

P0506

Idle RPM Lower Than Expected

P0507

Idle RPM Higher Than Expected

P0562 ⁽¹⁾

System Voltage Low

P0563 ⁽¹⁾

System Voltage High

P0606 ⁽¹⁾

Internal Control Module ROM Error

P1123

Long Term Fuel Trim Additive Air, System Too Rich

P1124

Long Term Fuel Trim Additive Air, System Too Lean

P1127

Long Term Fuel Trim Multiplicative, System Too Rich

P1128

Long Term Fuel Trim Multiplicative, System Too Lean

P1401 ⁽¹⁾

DM-TL System Malfunction

P1402 ⁽¹⁾

DM-TL Motor Malfunction

P1403 ⁽¹⁾

DM-TL Valve Malfunction

P1510

Idle Control Valve Opening Coil Circuit Shorted

P1513

Idle Control Valve Opening Coil Circuit Open

P1552

Idle Control Valve Closing Coil Circuit Shorted

P1553

Idle Control Valve Closing Coil Circuit Open

P1586 ⁽¹⁾

Transmission Encoding Signal Not Rational

P1605

Rough Road Sensor Circuit Malfunction

P1606

Rough Road Sensor Signal Not Rational

P1611

MIL Request Signal Circuit Input Low

P1613

MIL Request Signal Circuit Input High

⁽¹⁾	Accent only.

⁽²⁾	Elantra and Tiburon only.

DIAGNOSTIC TROUBLE CODE IDENTIFICATION (SONATA)

Code

Probable Cause

P0100

Mass Airflow (MAF) Circuit Malfunction

P0101 ⁽¹⁾

Mass Airflow (MAF) Range/Performance Malfunction

P0110

Intake Air Temperature (IAT) Circuit Malfunction

P0115

Engine Coolant Temperature (ECT) Sensor Circuit Malfunction

P0120

Throttle Position Circuit Malfunction

P0121 ⁽¹⁾

Throttle Position (TP) Sensor Range/Performance

P0125

Insufficient Coolant Temperature For Closed Loop

P0130 ⁽²⁾

HO2S Circuit Malfunction (Front)

P0130 ⁽¹⁾

HO2S Circuit Malfunction (Bank 1, Sensor 1)

P0133 ⁽¹⁾

HO2S Circuit Slow Response (Bank 1, Sensor 1)

P0134 ⁽¹⁾

HO2S Circuit No Activity (Bank 1, Sensor 1)

P0135 ⁽¹⁾

HO2S Heater Circuit Malfunction (Bank 1, Sensor 1)

P0135 ⁽²⁾

HO2S Heater Circuit Malfunction (Front)

P0136 ⁽¹⁾

HO2S Circuit Malfunction (Bank 1, Sensor 2)

P0136 ⁽²⁾

HO2S Circuit Malfunction (Rear)

P0140 ⁽¹⁾

HO2S No Activity Detected (Bank 1, Sensor 2)

P0141 ⁽²⁾

HO2S Heater Circuit Malfunction (Rear)

P0141 ⁽¹⁾

HO2S Heater Circuit Malfunction (Bank 1, Sensor 2)

P0150 ⁽¹⁾

HO2S Circuit Malfunction (Bank 2, Sensor 1)

P0153 ⁽¹⁾

HO2S Circuit Slow Response (Bank 2, Sensor 1)

P0154 ⁽¹⁾

HO2S Circuit No Activity (Bank 2, Sensor 1)

P0155 ⁽¹⁾

HO2S Heater Circuit Malfunction (Bank 2, Sensor 1)

P0156 ⁽¹⁾

HO2S Circuit Malfunction (Bank 2, Sensor 2)

P0160 ⁽¹⁾

HO2S No Activity Detected (Bank 2, Sensor 2)

P0161 ⁽¹⁾

HO2S Heater Circuit Malfunction (Bank 2, Sensor 2)

P0170 ⁽¹⁾

Fuel Trim Malfunction (Bank 1)

P0173 ⁽¹⁾

Fuel Trim Malfunction (Bank 2)

P0201

Injector No. 1 Circuit Malfunction

P0202

Injector No. 2 Circuit Malfunction

P0203

Injector No. 3 Circuit Malfunction

P0204

Injector No. 4 Circuit Malfunction

P0205 ⁽¹⁾

Injector No. 5 Circuit Malfunction

P0206 ⁽¹⁾

Injector No. 6 Circuit Malfunction

P0230 ⁽¹⁾

Fuel Pump Circuit Malfunction

P0300 ⁽²⁾

Random Misfire Detected

P0301

Cylinder No. 1 Misfire Detected

P0302

Cylinder No. 2 Misfire Detected

P0303

Cylinder No. 3 Misfire Detected

P0304

Cylinder No. 4 Misfire Detected

P0305 ⁽¹⁾

Cylinder No. 5 Misfire Detected

P0306 ⁽¹⁾

Cylinder No. 6 Misfire Detected

P0325 ⁽²⁾

Knock Sensor Circuit Malfunction

P0325 ⁽¹⁾

Knock Sensor No. 1 Circuit Malfunction

P0330 ⁽¹⁾

Knock Sensor No. 2 Circuit Malfunction

P0335

Crankshaft Position (CKP) Sensor Malfunction

P0340

Camshaft Position (CMP) Sensor Malfunction

P0350 ⁽¹⁾

Ignition Coil Primary/Secondary Circuit Malfunction

P0351 ⁽¹⁾

Ignition Coil "A" Primary/Secondary Circuit Malfunction

P0352 ⁽¹⁾

Ignition Coil "B" Primary/Secondary Circuit Malfunction

P0353 ⁽¹⁾

Ignition Coil "C" Primary/Secondary Circuit Malfunction

P0354 ⁽¹⁾

Ignition Coil "D" Primary/Secondary Circuit Malfunction

P0355 ⁽¹⁾

Ignition Coil "E" Primary/Secondary Circuit Malfunction

P0356 ⁽¹⁾

Ignition Coil "F" Primary/Secondary Circuit Malfunction

P0400 ⁽²⁾

EGR Flow Malfunction

P0403 ⁽²⁾

EGR Solenoid Circuit Malfunction

P0420 ⁽¹⁾

Catalyst Efficiency Below Threshold (Bank 1)

P0421 ⁽²⁾

Catalyst Efficiency Below Threshold

P0430 ⁽¹⁾

Catalyst Efficiency Below Threshold (Bank 2)

P0440 ⁽¹⁾

EVAP Control System Malfunction

P0442

EVAP System Small Leak Detected

P0443

EVAP Purge Control Valve Circuit Malfunction

P0446

EVAP Vent Control Malfunction

P0450

EVAP Fuel Tank Pressure Sensor Malfunction

P0451 ⁽¹⁾

EVAP Fuel Tank Pressure Sensor Signal Range/Performance

P0452 ⁽²⁾

EVAP Fuel Tank Pressure Sensor Low Input

P0453 ⁽²⁾

EVAP Fuel Tank Pressure Sensor High Input

P0455

EVAP System Large Leak Detected

P0500 ⁽¹⁾

OBD-II Rough Road Detection, Vehicle Speed Malfunction From ABS/TCS Or RF Wheel Sensor

P0500 ⁽²⁾

Vehicle Speed Sensor (VSS) Malfunction

P0505 ⁽¹⁾

Idle Speed Control (ISC) Actuator Mechanical Malfunction

P0505 ⁽²⁾

Idle Control System Malfunction

P0506 ⁽¹⁾

Idle RPM Lower Than Expected

P0507 ⁽¹⁾

Idle RPM Higher Than Expected

P0510 ⁽²⁾

Closed Throttle Position Switch Malfunction

P0601 ⁽¹⁾

Internal Control Module ROM Check Sum Error

P1100 ⁽²⁾

Manifold Absolute Pressure (MAP) Sensor Malfunction

P1134 ⁽¹⁾

HO2S Circuit Transition Switch Time Malfunction/Slop (Bank 1, Sensor 1)

P1154 ⁽¹⁾

HO2S Circuit Transition Switch Time Malfunction/Slop (Bank 2, Sensor 1)

P1166 ⁽¹⁾

HO2S Controller Adaptation Diagnosis Malfunction (Bank 1)

P1167 ⁽¹⁾

HO2S Controller Adaptation Diagnosis Malfunction (Bank 2)

P1168 ⁽¹⁾

HO2S Heater Power Incorrect (Bank 1, Sensor 2)

P1169 ⁽¹⁾

HO2S Heater Power Incorrect (Bank 2, Sensor 2)

P1372 ⁽¹⁾

Segment Time Acquisition Incorrect

P1440 ⁽¹⁾

EVAP Control System Vent Circuit Malfunction

P1443 ⁽¹⁾

EVAP Control System Fuel Tank Cap Missing

P1510 ⁽¹⁾

Idle Charge Actuator Command Signal Incorrect (Coil 1)

P1511 ⁽¹⁾

Idle Charge Actuator Command Signal Incorrect (Coil 2)

P1520 ⁽²⁾

Generator FR Terminal Circuit Malfunction

P1521 ⁽²⁾

Power Steering Pressure Switch Signal Malfunction

P1529 ⁽¹⁾

Customer Snapshot (MIL Request/Freeze Frame) Request VIA CAN

P1602 ⁽¹⁾

Serial Communication Problem With TCU (TIME-OUT)

P1613 ⁽¹⁾

ECM Self Test Failed

P1616 ⁽¹⁾

Main Relay Malfunction

P1623 ⁽¹⁾

Diagnostic Lamp Power Stage Malfunction

P1624 ⁽¹⁾

Cooling Fan Relay Circuit Malfunction (LOW Circuit)

P1625 ⁽¹⁾

Cooling Fan Relay Circuit Malfunction (HIGH Circuit)

⁽¹⁾	Sonata 2.5L only.

⁽²⁾	Sonata 2.4L only.