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Hyundai excavator fault codes

Fault Codes:

Hyundai HX220 NL EPFC 166-6

Solution:

1. Check for open circuits or short circuits in the CN-88(#1)-CN-53(#10) lines 2. Check for open circuits or short circuits in the CN-88(#2)- fuse box (#28) circuit

Fault Description:

(Testing conditions When the Power Max solenoid valve is open For 5 seconds, the driving current of the Power Max solenoid valve is greater than 4.5A (Conditions for termination When the Power Max solenoid valve is open For 3 seconds, the driving current of the Power Max solenoid valve is ≤4.5A

Fault Location:

1. Control function - Pressurization operation failed