Fault Codes:
Hyundai HX220 NL EPFC 4658（4331-18）
Fault Description:
Aftertreatment SCR actual dosing reagent quantity -Data valid but below normal operating range -Moderately severe level.Low aftertreatment diesel exhaust fluid flow detected. The actual injection dose of post-processing SCR - the data is valid but below the normal operating range - moderate severity level. The flow rate of the exhaust gas treatment liquid was detected to be too low.
Fault Location:
Possible reduced engine performance. It may lead to a decline in engine performance.
