Liebherr Fault Code

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SPN 701 FMI 5

Hydraulic Function Interrupted

System

Electrical

Symptom

Hydraulic Function Interrupted

Diagnosis & fix steps

LOGIC: Main Control Valve Solenoid Current Below Normal (Open Circuit). ACTION: Disconnect harness at the valve bank. Measure solenoid coil resistance. Inspect harness routing around the articulation joint for wire strain or breaks.

Red Seal field insights

Electrical Logic: The ECU monitors the current return loop. An FMI 5 indicates the resistance is infinite, confirming a broken wire or dead coil.

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