Fault Codes:
Hyundai HX220 NL EPFC 3937(5848-10)
Fault Description:
Aftertreatment 1 SCR Intermediate NH3 sensor -Abnormal rate of change.The aftertreatment SCR intermediate NH3 sensor reading is NOT valid. Post-processing 1: Abnormal change rate of the NH3 sensor in the middle of the SCR. The NH3 sensor reading in the middle of the post-processing SCR is invalid
Fault Location:
Possible reduced engine performance. It may lead to a decline in engine performance.

