Hitachi Fault Code
Free · no signup11200-3
Hydraulic Lag / Slow Lift.
System
Hydraulics (Pump 1)
Symptom
Hydraulic Lag / Slow Lift.
Diagnosis & fix steps
LOGIC: Pump 1 Delivery Pressure Sensor High Voltage.
ACTION: Swap P1 and P2 sensors to see if the code moves. If it stays at P1, check the 5V reference in the monitor's diagnostic mode.
Red Seal field insights
Specs: P1 System Pressure in Power Boost is 38.0 MPa (5,511 PSI). If the sensor reads 4.5V+ at idle, it's failed high.
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