Fault Codes:
Hyundai HX220 NL EPFC 4157（4376-7）
Fault Description:
Aftertreatment diesel exhaust fluid return valve-Mechanical system not responding or out of adjustment.A stuck aftertreatment diesel exhaust fluid return valve has been detected The return valve of the exhaust gas treatment fluid for the post-treatment diesel engine - the mechanical system is unresponsive or out of balance. It was detected that the reflux valve of the exhaust gas treatment liquid was stuck.
Fault Location:
None on performance. It does not affect performance.
