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Trouble Code Definition
Courtesy of HYUNDAI MOTOR CO.
Courtesy of HYUNDAI MOTOR CO. DIAGNOSTIC CODES (MALFUNCTION INDICATOR LIGHT)
| Trouble Code |
Fault Item |
Probable Cause |
| 1122 |
ECM |
ECM Failure - RAM/ROM |
| 1233 |
ECM |
ECM Failure - ROM |
| 1234 |
ECM |
ECM Failure - RAM |
| 2121 |
Boost Sensor |
Control Valve |
| 3112 |
Injector |
Injector No. 1 |
| 3114 |
IAC Motor |
IAC Opening Failure |
| 3116 |
Injector |
Injector No. 3 |
| 3117 |
Airflow Sensor |
Airflow Sensor |
| 3121 |
Boost Sensor |
Pressure Sensor Failure |
| 3122 |
IAC Motor |
IAC Closing Failure |
| 3128 |
HO2S Sensor |
HO2S Sensor |
| 3135 |
Evaporative Purge Valve |
Purge Control Solenoid Valve |
| 3137 |
Battery |
Alternator/Low Voltage |
| 3145 |
Coolant Temperature Sensor |
Coolant Temperature Sensor |
| 3149 |
A/C Compressor |
A/C Compressor |
| 3152 |
Boost Sensor |
Turbo Boost - Too High |
| 3153 |
Throttle Position Sensor |
Throttle Position Sensor |
| 3211 |
Knock Sensor |
Knock Sensor |
| 3222 |
Phase Sensor |
Phase Sensor |
| 3224 |
ECM |
Knock Evaluation Circuit |
| 3232 |
Crankshaft Position Sensor |
Crankshaft Position Sensor |
| 3233 |
ECM |
Knock Control Circuit |
| 3234 |
Injector |
Injector No. 2 |
| 3235 |
Injector |
Injector No. 4 |
| 3241 |
ECM |
Injector Or Purge Control Valve |
| 3242 |
ECM |
IAC Motor Or A/C Relay |
| 4151 |
Air/Fuel Mixture |
Air/Fuel Control |
| 4152 |
Air/Fuel Mixture |
Air/Fuel Adaptive Failure |
| 4153 |
Air/Fuel Mixture |
Air/Fuel Adaptive (Multiple) Failure |
| 4154 |
Air/Fuel Mixture |
Air/Fuel Adaptive (Additive) Failure |
| 4155 |
ECM |
A/C Relay, IAC Motor, Injector Or PCV |
| 4156 |
Boost Sensor |
Control Deviation Failure |