Fault Codes:
Hyundai HX220 NL EPFC 220-6
Solution:
1. Check for open circuits or short circuits in the CN-369(#1)-CN-53(#08) lines 2. Check for open circuits or short circuits in the CN-369(#2)- fuse box (#19) circuit
Fault Description:
(Testing conditions When the boom descends, the pilot pressure is cut off and the solenoid valve opens. For 10 seconds, the driving current of the pilot pressure cut-off solenoid valve when the boom descends is greater than 6.5A (Conditions for termination When the boom descends, the pilot pressure is cut off and the solenoid valve opens. For 3 seconds, the driving current of the pilot pressure cut-off solenoid valve when the boom descends is ≤6.5A
Fault Location:
Control function - The floating control of the boom has failed
