Diagnostic Trouble Code (DTC) Definitions

See DTC IDENTIFICATION table, then go to appropriate diagnostic procedure in appropriate TESTS W/CODES article. See the following list.

Accent, see: TESTS W/CODES
Elantra and Tiburon, see: TESTS W/CODES
Sonata 2.0L, see: TESTS W/CODES
Sonata 3.0L,see: TESTS W/CODES

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

Code

Probable Cause

P0100 ⁽¹⁾

Volume Airflow (VAF) Circuit Malfunction

P0102 ⁽²⁾

Mass Airflow (MAF) Circuit Input Low

P0103 ⁽²⁾

Mass Airflow (MAF) Circuit Input High

P0105 ⁽¹⁾

Barometric Pressure Circuit Malfunction

P0110 ⁽¹⁾

Intake Air Temp. (IAT) Circuit Malfunction

P0112 ⁽²⁾

Intake Air Temp. (IAT) Circuit Input Low

P0113 ⁽²⁾

Intake Air Temp. (IAT) Circuit Input High

P0115 ⁽¹⁾

Engine Coolant Temp. (ECT) Sensor Circuit Malfunction

P0116 ⁽²⁾

Engine Coolant Temp. (ECT) Sensor Range

P0117 ⁽²⁾

Engine Coolant Temp. (ECT) Sensor Input Low

P0118 ⁽²⁾

Engine Coolant Temp. (ECT) Sensor Input High

P0120 ⁽¹⁾

Throttle Position Circuit Malfunction

P0121 ⁽²⁾

Throttle Position (TP) Sensor Range

P0122 ⁽²⁾

Throttle Position (TP) Sensor Input Low

P0123 ⁽²⁾

Throttle Position (TP) Sensor Input High

P0125 ⁽¹⁾

Insufficient Coolant Temp. For Closed Loop

P0130

HO2S Circuit Malfunction (Front)

P0131 ⁽²⁾

HO2S Circuit Voltage Low (Front)

P0132 ⁽²⁾

HO2S Circuit Voltage High (Front)

P0133 ⁽²⁾

HO2S Circuit Slow Response (Front)

P0134 ⁽²⁾

HO2S Circuit No Activity (Front)

P0135

HO2S Heater Circuit Malfunction (Front)

P0136

HO2S Circuit Malfunction (Rear)

P0137 ⁽²⁾

HO2S Circuit Voltage Low (Rear)

P0138 ⁽²⁾

HO2S Circuit Voltage High (Rear)

P0141

HO2S Heater Circuit Malfunction (Rear)

P0170 ⁽¹⁾

Fuel Trim 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

P0205 ⁽³⁾

Injector No. 5 Circuit Malfunction

P0206 ⁽³⁾

Injector No. 6 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

P0305 ⁽³⁾

Cylinder No. 5 Misfire Detected

P0306 ⁽³⁾

Cylinder No. 6 Misfire Detected

P0326 ⁽²⁾

Knock Sensor Range

P0335

Crankshaft Position (CKP) Sensor Malfunction

P0336 ⁽²⁾

Crankshaft Position (CKP) Sensor Range

P0340 ⁽¹⁾

Camshaft Position (CMP) Sensor Malfunction

P0342 ⁽²⁾

Camshaft Position (CMP) Sensor Input Low

P0343 ⁽²⁾

Camshaft Position (CMP) Sensor Input High

P0400 ⁽⁵⁾

EGR Flow Malfunction

P0403 ⁽⁵⁾

EGR Solenoid Malfunction

P0420 ⁽¹⁾

Catalyst Efficiency Below Threshold

P0421 ⁽⁴⁾

Manifold Catalyst Efficiency Below Threshold

P0422 ⁽⁶⁾

Main Catalyst Efficiency Below Threshold

P0440 ⁽¹⁾

EVAP System Malfunction

P0441 ⁽⁶⁾

EVAP Purge Valve Permanently Open

P0442

EVAP System Leak Detected

P0443 ⁽⁵⁾

EVAP Purge Control Valve Circuit Malfunction

P0444 ⁽²⁾

EVAP System Purge Control Valve Circuit Open

P0445 ⁽²⁾

EVAP System Purge Control Valve Circuit Shorted

P0446

EVAP Vent Control Valve Malfunction

P0447 ⁽²⁾

EVAP Vent Valve Short To Ground

P0448 ⁽²⁾

EVAP Vent Valve Short To Voltage

P0450 ⁽¹⁾

EVAP Pressure Sensor Malfunction

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 ⁽²⁾

EVAP System Incorrect Purge Flow

P0500 ⁽¹⁾

Vehicle Speed Sensor (VSS) Malfunction

P0501 ⁽²⁾

Vehicle Speed Sensor (VSS) Range

P0505 ⁽¹⁾

Idle Speed Control (ISC) Actuator Malfunction

P0506 ⁽²⁾

Idle RPM Lower Than Expected

P0507 ⁽²⁾

Idle RPM Higher Than Expected

P0510 ⁽¹⁾

Closed Throttle Position Switch Malfunction

P0562 ⁽²⁾

System Voltage Low

P0563 ⁽²⁾

System Voltage High

P0605 ⁽²⁾

Internal Control Module ROM Error

P0700 ⁽¹⁾

Input Pulse From TCM To ECM Malfunction

P0705 ⁽¹⁾

Inhibitor Switch Signal Malfunction

P0750 ⁽¹⁾

Open/Shorted Shift/Pressure Control Sol. Circuit

P1123 ⁽²⁾

Long Term Fuel Trim Additive Air, System Too Rich

P1124 ⁽²⁾

Long Term Fuel Trim Additive Air, System Too Lean

P1127 ⁽²⁾

Long Term Fuel Trim Multiplicative, System Too Rich

P1128 ⁽²⁾

Long Term Fuel Trim Multiplicative, System Too Lean

P1400 ⁽¹⁾

EGR System Monitor Malfunction

P1510 ⁽²⁾

Idle Control Valve Opening Coil Circuit Shorted

P1513 ⁽²⁾

Idle Control Valve Opening Coil Circuit Open

P1521 ⁽¹⁾

Power Steering Pressure Switch Signal Malfunction

P1552 ⁽²⁾

Idle Control Valve Closing Coil Circuit Shorted

P1553 ⁽²⁾

Idle Control Valve Closing Coil Circuit Open

P1586 ⁽²⁾

Transmission Encoding Signal Not Rational

P1605 ⁽²⁾

Rough Road Sensor Circuit Malfunction

P1606 ⁽²⁾

Rough Road Sensor Signal Not Rational

P1611 ⁽²⁾

MIL Request Signal Circuit Input Low

P1613 ⁽⁶⁾

MIL Request Signal Circuit Input High

P1614 ⁽⁴⁾

MIL Request Signal Circuit Input High

P1665 ⁽⁴⁾

Power Stage Group "A" Malfunction

P1670 ⁽⁴⁾

Power Stage Group "B" Malfunction

P1715 ⁽¹⁾

Open Circuit in Pulse Generator

⁽¹⁾	Sonata only.

⁽²⁾	Except Sonata.

⁽³⁾	Sonata 3.0L only.

⁽⁴⁾	Accent only.

⁽⁵⁾	Accent and Sonata only.

⁽⁶⁾	Elantra and Tiburon only.