Fault Codes:
Hyundai HX220 NL EPFC 124-4
Solution:
1. Check for open circuits or short circuits in the CD-71(#B)-CN-51(#28) circuit 2. Check for open circuits or short circuits in the CD-71(#A)-CN-51(#32) lines 3. Check for open circuits or short circuits in the CD-71(#C)-CN-51(#31) lines
Fault Description:
For 10 seconds, the negative pressure 2 sensor measures a voltage of less than 0.3V
Fault Location:
1. Monitor - Negative pressure 2 display fault 2. Control function - The optional accessory flow control has failed
