Hitachi Fault Code
Free · no signup11401-2
Engine Bogging / No Torque.
System
Hydraulics (Torque)
Symptom
Engine Bogging / No Torque.
Diagnosis & fix steps
LOGIC: Torque Control Solenoid Current Feedback abnormal.
ACTION: Measure the ohms of the solenoid coil. If the coil is good, check for a "bent pin" in the 12-pin pump connector.
Red Seal field insights
Specs: Solenoid resistance should be approx. 15.5 Ohms.
Hint: This solenoid regulates pump swash based on engine load; a failed coil causes the pump to "over-torque" the engine.
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