Fault Codes:
Hyundai HX220 NL EPFC 3577（4376-3）
Fault Description:
Aftertreatment diesel exhaust fluid return valve-Voltage above normal or shorted to high source.High signal voltage detected at the aftertreatment diesel exhaust fluid return valve Post-treatment diesel engine exhaust treatment fluid reflux valve - voltage higher than normal value or short-circuited to high power supply. The signal voltage of the tail gas treatment liquid reflux valve was detected to be too high
Fault Location:
Possible reduced engine performance. It may lead to a decline in engine performance.
