Fault Codes:
Hyundai HX220 NL EPFC 1887（3226-4）
Fault Description:
Aftertreatment outlet NOx sensor circuit -Voltage below normal or shorted to low source An internal circuit error has been detected by the aftertreatment outlet NOx sensor. Post-treatment outlet nitrogen oxide sensor circuit - voltage lower than normal value or short-circuited to ground. An internal circuit fault was detected in the nitrogen oxide sensor at the post-treatment outlet
Fault Location:
Possible reduced engine performance. It may lead to a decrease in engine power
